Relevant bibliographies by topics / Forest surveys

Academic literature on the topic 'Forest surveys'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 August 2024

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Journal articles on the topic "Forest surveys"

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Martin, Maxence, Nicole J. Fenton, and Hubert Morin. "Boreal old-growth forest structural diversity challenges aerial photographic survey accuracy." Canadian Journal of Forest Research 50, no. 2 (February 2020): 155–69. http://dx.doi.org/10.1139/cjfr-2019-0177.

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The erosion of old-growth forests in boreal managed landscapes is a major issue currently faced by forest managers; however, resolving this problem requires accurate surveys. The intention of our study was to determine if historic operational aerial forest surveys accurately identified boreal old-growth forests in Quebec, Canada. We first compared stand successional stages (even-aged vs. old-growth) in two aerial surveys performed in 1968 (preindustrial aerial survey) and 2007 (modern aerial survey) on the same 2200 km2 territory. Second, we evaluated the accuracy of the modern aerial survey by comparing its results with those of 74 field plots sampled in the study territory between 2014 and 2016. The two aerial surveys differed significantly; 80.8% of the undisturbed stands that were identified as “old-growth” in the preindustrial survey were classified as “even-aged” in the modern survey, and 60% of the stands identified as “old-growth” by field sampling were also erroneously identified as “even-aged” by the modern aerial survey. The scarcity of obvious old-growth attributes in boreal old-growth forests, as well as poorly adapted modern aerial survey criteria (i.e., criteria requiring high vertical stratification and significant changes in tree species composition along forest succession), were the main factors explaining these errors. It is therefore likely that most of Quebec’s boreal old-growth forests are currently not recognized as such in forest inventories, challenging the efficacy of sustainable forest management policies.
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Whipp, Robyn K., Ian D. Lunt, Andrew Deane, and Peter G. Spooner. "Historical forest survey data from Eucalyptus - Callitris forests: a valuable resource for long-term vegetation studies." Australian Journal of Botany 57, no. 7 (2009): 541. http://dx.doi.org/10.1071/bt09154.

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Quantitative information about historical changes in natural ecosystems is important for guiding management interventions. However, few accurate data sources are available for documenting long-term vegetation changes. In this paper, we describe a neglected source of quantitative information on historical forest structure: forest inventory strip surveys, which were widely used in eastern Australia from 1915 to the 1940s. Strip surveys provide quantitative information on the species composition, stem density, basal area, stem form and size class distributions of dominant tree species. Such information is not available from other widespread data sources. Strip surveys usually surveyed 10% of the total forest area. In this paper, we describe the original survey methods, demonstrate how to decode data-book entries, and analyse a sample dataset from the Pilliga State Forests in northern New South Wales to illustrate the information that can be obtained from this material. Strip survey data-books are poorly archived. Many books exist for Eucalyptus–Callitris forests in northern and central NSW, and additional books may exist for many other forest types in eastern Australia. Strip surveys provide a valuable data source for studying long-term vegetation changes in forest ecosystems. We urge forest managers to search for and preserve this precious archival material.
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Hall, J. Peter. "ARNEWS assesses the health of Canada's forests." Forestry Chronicle 71, no. 5 (October 1, 1995): 607–13. http://dx.doi.org/10.5558/tfc71607-5.

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In 1984 the Canadian Forest Service (CFS) established the Acid Rain National Early Warning System (ARNEWS) to monitor the state of health of Canada's forests. This program was implemented by the CFS Forest Insect and Disease Survey (FIDS) who survey the plots annually and determine the causes of observed damage. For the period, 1984-1994, the survey indicates that there has been no large-scale decline in the health of Canada's forests. Insects, diseases and abiotic conditions have impacted forests, and isolated cases of damage caused by air pollution have been observed. The presence of unknown damage is also being investigated to determine if pollution is involved. The results of this survey support the need for a national forest health monitoring network as part of sustainable management of Canadian forests. Key words: forest health, forest surveys, sustainable forestry, ecosystem monitoring
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Liu, C. J., and Richard (Dick) Brantigan. "Using differential GPS for forest traverse surveys." Canadian Journal of Forest Research 25, no. 11 (November 1, 1995): 1795–805. http://dx.doi.org/10.1139/x95-194.

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This report documents the accuracy and efficiency of differential GPS (DGPS) when it is applied in forest environments. The report contains research results obtained from using DGPS for forest-stand boundary surveys conducted in hardwood forests in a mountainous region. Reported also is the result of a cost-effectiveness analysis that contrasts the satellite-based DGPS positioning and the conventional land-based compass-and-chain surveys. The study found that (1) both forest canopy and undulating terrain in mountainous regions would exert a definite effect on DGPS traverse surveys but neither would reduce stand area determination accuracy; (2) in general, static DGPS was more accurate but less productive than the kinematic DGPS when accuracy and cost were weighted equally; (3) inaccurate two-dimensional position determinations degraded positioning accuracy in either the kinematic or static positioning mode; and (4) kinematic DGPS traverse was a cost-effective survey technique capable of achieving closer forest stand area approximation than the compass-and-chain traverse.
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Reynolds, Michelle H., Richard J. Camp, Bonnie M. B. Nielson, and James D. Jacobi. "Evidence of change in a low-elevation forest bird community of Hawai'i since 1979." Bird Conservation International 13, no. 3 (September 2003): 175–87. http://dx.doi.org/10.1017/s0959270903003149.

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We evaluated the abundance and distribution of low-elevation forest birds on windward Hawai'i Island during August 1993-February 1994, and present evidence of changes in the species composition of the forest bird community since 1979. Endemic Hawaiian birds occurred in native-dominated forests as low as 120 m elevation. Non-native species were detected at all survey locations. We observed non-native Saffron Finch Sicalis flaveola, previously unrecorded in Puna. Variable circular plot surveys of Kahauale'a Natural Area Reserve indicated the disappearance of two native species ('I'iwi Vestiaria coccinea and 'O'u Psittitostra psittacea), and two non-native additions (Red-billed Leiothrix Leiothrix lutea and Kalij Pheasant Lophura leucomelana) to the study area since the Hawai'i Forest Bird Survey conducted in 1979. We present evidence that native 'Elepaio Chasiempsis sandwichensis has experienced a decrease in population density and an elevational range contraction since 1979. Surveys indicate Puna's forest bird community has had increasing aliens and declining native species since 1979. The persistence of some native bird species within the range of avian disease vectors such as Culex quinquefasciatus in forests below 1,000 m elevation presents an important enigma that requires additional study.
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PARASHURAM, DEVATHI, STEFFEN OPPEL, CALVIN FENTON, GLENFORD JAMES, JAMES DALEY, GERARD GRAY, NIGEL J. COLLAR, and PAUL M. DOLMAN. "The Forest Thrush Turdus lherminieri prefers mature mesic forest with dense canopy." Bird Conservation International 25, no. 4 (February 2, 2015): 503–13. http://dx.doi.org/10.1017/s0959270914000495.

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SummaryHabitat loss, the primary driver for loss of biodiversity worldwide, is of special concern for species that have a small area of occurrence, such as those restricted to islands. The Forest Thrush Turdus lherminieri is a ‘Vulnerable’ (VU) species endemic to four islands in the Caribbean, and its population has declined dramatically over the past 15 years. Because this decline is poorly understood, we studied its habitat associations on Montserrat. We conducted three repeat point count surveys and measured forest structure and habitat at each of 88 randomly placed locations in the largest forest area remaining on the island. We related Forest Thrush abundance to habitat using binomial mixture models that account for imperfect detection. Detection probability was a function of survey time, survey date, location of the survey point, and wind. Local habitat structure had the greatest influence on Forest Thrush abundance, with birds being more abundant at mid-elevations under closed canopies. We conclude that the Forest Thrush prefers mature mesic and wet forests on Montserrat. Assuming similar habitat selection in the rest of its range, the species’s long-term future depends on good protection of these natural forests on all four islands where it occurs.
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BADEA, Ovidiu, Diana Maria SILAGHI, Stefan NEAGU, Ioan TAUT, and Stefan LECA. "Forest Monitoring - Assessment, Analysis and Warning System for Forest Ecosystem Status." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 41, no. 2 (December 6, 2013): 613. http://dx.doi.org/10.15835/nbha4129304.

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Forests provide essential benefits and services as an important component of terrestrial ecosystems. Their functionality and health result from multiple and cumulative interactions of biotic and abiotic stress factors such as air pollution, climate change, changes in land use, and poor management practices. A forest monitoring system was established to identify, analyse and assess the degradation of European forests. Two levels of forest monitoring were developed: I) large-scale forest condition surveys, based on an European grid system starting in 1986 and II) an intensive non-systematic survey network placed in representative forest ecosystems starting in 1994. Romania implemented both level I (1990-1991) and level II (1991-1992) forest monitoring surveys with the results showing the effects of increased air temperatures and a drastic decrease of precipitation since the decade of 1971-1980. Thus, the highest values of damaged trees (crown defoliation >25%) percent were recorded in 1993, 1994, 2000 and 2003 both in the national and European networks. Also, in southern and South-Eastern Romania the forests are more frequently damaged as a response to worsening of climatic factors in this region in recent decades, with temperatures rising 0.7-0.8°C. In general, in Romania, ozone concentrations remained below the critical threshold (40-50 ppb) for affecting growth or health of trees. The levels of S-SO4 and N-NO3 declined in the atmosphere but the accumulation continued to increase in the soil, leading to soil acidification, mainly at depths of 10-40 cm). In general, during the last decade, Romanian forests were affected at low to medium intensities with damage rate up to 11% of the trees and the status of general forest health improved slightly.
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Joseph, Niji, R. Sreejai, and M. Ajayakumar. "Report of new myristica swamp ecosystems from the Western Ghats at Pathanapuram, Kerala, India." Journal of Threatened Taxa 15, no. 12 (December 26, 2023): 24437–42. http://dx.doi.org/10.11609/jott.8242.15.12.24437-24442.

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We present a new distributional report of myristica swamp ecosystems in the Western Ghats at Pathanapuram, Kerala, India based on several distinct field surveys from April 2022 to June 2022. From Kerala, myristica swamp has previously been reported mainly from Shendurney Wildlife Sanctuary, Kulathupuzha Reserve Forests, and adjoining regions of the Anchal forest ranges in southern Western Ghats. The present study described and illustrated the occurrence of myristica swamp from the Pathanapuram forest range in Kerala for the first time. The observed myristica swamps from the Pathanapuram forest range are seen inside the Ambanar model forest station and Punnala forest station limits. A total of 18 myristica swamp patches from Ambanar and seven myristica swamps from Punnala were reported and captured. A pilot survey from these sites suggests they are abundant with various faunal and floral wealth. Therefore, recognition and conservation of these ecosystems are essential and vital and suggest further surveys and conservation efforts.
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Dobsinska, Zuzana, and Zuzana Sarvasova. "Perceptions of Forest Owners and the General Public on the Role of Forests in Slovakia." Acta Silvatica et Lignaria Hungarica 12, no. 1 (June 1, 2016): 23–34. http://dx.doi.org/10.1515/aslh-2016-0003.

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AbstractDuring the past decades, the awareness of environmental issues in forest management is increasing due to changes in environmental education. The perceptions of forests, sustainable management, and ecosystem services were studied through two surveys. The general public and forest owners were the two target groups. The questionnaires had similar questions, though two different methodological approaches were used - the CATI system, for general public opinion survey, and semi-structured questionnaires for forest owners. The second survey contained more detailed questions regarding forest properties. Combined answers from 1503 respondents from the general public and 150 forest owners were evaluated on the following topics: sustainable forestry, major ecosystem services, and perceptions of forests. The majority of the Slovakian public regards ecological values as the most important element, whereas forest owners prefer the economic purposes for the maintenance and enhancement of forests. Forest owners tend to visit their forests once per week, whereas the general public tend to visit only once per month. The main cause for this non-attendance in the general public was a lack of recreational time, followed by a disinterest in forests. The main purpose for visiting forests for both groups was recreation. Overall, it can be concluded that people are mostly satisfied with forest management in Slovakia. Forest owners are satisfied with their forest properties, and plan to keep them for their children. In the future, more attention should be focused on investigating the younger generation’s perception of forests.
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Elliott, Kyle H., Paul A. Smith, and Victoria H. Johnston. "Aerial Surveys Do Not Reliably Survey Boreal-nesting Shorebirds." Canadian Field-Naturalist 124, no. 2 (April 1, 2010): 145. http://dx.doi.org/10.22621/cfn.v124i2.1053.

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Aerial surveys have been used as a method for surveying boreal-nesting shorebirds, which breed in difficult-to-access terrain; however, the fraction of breeding birds observed from the air is unknown. We investigated rates of detection by conducting simultaneous air and ground surveys for shorebirds at three sites in the boreal forest of the Northwest Territories, Canada, in 2007. Helicopter surveys included both pond-based surveys where the helicopter flew around the perimeter of each wetland and transect-based surveys where observers recorded birds seen on line transects. Ground surveys involved intensive observation, territory mapping and nest searching in 5 km2 of plots over a period of 5-6 weeks. Shorebird densities observed from the helicopter were highest near large bodies of water. No shorebirds were observed over closed forest despite breeding densities on ground surveys being highest in closed forest. Detection rates were very low, varied among species and aerial survey types, and were inconsistent over time. Ground-based observations showed that the shorebirds often did not flush in response to the helicopter passing overhead. Owing to poor rates of detection, we conclude that helicopter surveys are not an appropriate method for surveying breeding shorebirds in boreal habitats, but may have some utility for monitoring birds' use of stop-over locations.
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Dissertations / Theses on the topic "Forest surveys"

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Hart, Tim. "Stem profile equations for several commercially important timber species in Wisconsin /." Link to full text, 2009. http://epapers.uwsp.edu/thesis/2009/Hart.pdf.

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Thesis (M.S.)--University of Wisconsin--Stevens Point, 2009.
Submitted in partial fulfillment of the requirements of the degree Master of Science in Natural Resources (Forestry), College of Natural Resources. Includes bibliographical references (leaves 82-87).
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Bender, John Richard. "Identifying structural differences in mixed mesophytic and northern hardwood forests on the Monongahela National Forest using remote sensing data." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=976.

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Thesis (M.A.)--West Virginia University, 1999.
Title from document title page. Document formatted into pages; contains viii, 55 p. : ill. (some col.), maps. Includes abstract. Includes bibliographical references (p. 44-48).
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Brown, Ian K. "Wisconsin statewide urban forest assessment : development and implementation /." Link to full text, 2007. http://epapers.uwsp.edu/thesis/2007/Brown.pdf.

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Holmström, Hampus. "Data acquisition for forestry planning by remote sensing based sample plot imputation /." Umeå : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-6086-7.pdf.

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Holmgren, Eva. "Forest commons in boreal Sweden : influences on forest condition, management and the local economy /." Umeå : Dept. of Forest Resource Management and Geomatics, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/10124692.pdf.

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Kamwi, Jonathan Mutau. "The use of high-resolution satellite imagery in forest inventory : a case of Hans Kanyinga Community Forest - Namibia." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/650.

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Holmgren, Eva. "Forest commons in boreal Sweden aims and outcomes on forest condition and rural development /." Umeå : Dept. of Forest Resource Management, Swedish University of Agricultural Sciences, 2009. http://epsilon.slu.se/200996.pdf.

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Latifah, Sitti. "Inventory and quality assessment of tropical rainforests in the Lore Lindu National Park (Sulawesi, Indonesia) /." Göttingen : Cuvillier, 2005. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=013215823&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Costanzo, Angela J. "A quantitative survey of riparian forest structure along the Quebrada Grande in La Cangreja National Park, Costa Rica /." Thesis, Connect to this title online, 2006. http://www.ranchomastatal.com/docs2/php5pk7ty%5FRiparianForestStructure%5FCostanzo.pdf.

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Korpela, Ilkka. "Individual tree measurements by means of digital aerial photogrammetry." Helsinki : Finnish Forest Research Institute, Finnish Society of Forest Science, 2004. http://catalog.hathitrust.org/api/volumes/oclc/55872310.html.

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Books on the topic "Forest surveys"

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Thompson, Michael T. Forest resources of the Coronado National Forest. Ogden, UT: United States Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2004.

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Thompson, Michael T. Forest resources of the Coronado National Forest. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2004.

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Innes, J. L. Forest health surveys 1987. London: H.M.S.O., 1987.

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Menlove, Jim. Forest resources of the Carson National Forest. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2004.

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O'Brien, Renee. Forest resources of the Flathead National Forest. Odgen, UT (324 25th St., Ogden 84401): U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 1999.

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Menlove, Jim. Forest resources of the Carson National Forest. Ogden, UT (324 25th St., Ogden, 84401): U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2004.

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Rogers, Paul. Forest resources of the Prescott National Forest. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2003.

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Shaw, John D. Forest resources of the Tonto National Forest. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2004.

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DeBlander, Larry T. Forest resources of the Coconino National Forest. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2003.

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Lambert, Dana. Forest resources of the Santa Fe National Forest. Ogden, UT (324 25th St., Ogden, 84401): United States Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2004.

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Book chapters on the topic "Forest surveys"

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Schwartz, Richard. "The forest case." In Mathematical Surveys and Monographs, 163–65. Providence, Rhode Island: American Mathematical Society, 2014. http://dx.doi.org/10.1090/surv/197/23.

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Yoshida, Shigejiro, Masaaki Imanaga, Koji Matsushita, and Okihiro Ohsaka. "Japanese Attitudes Towards Forests According to Comparative Opinion Surveys." In Environmental Forest Science, 165–71. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5324-9_17.

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Rizzo, Maria, and Patrizia Gasparini. "Forest Health." In Springer Tracts in Civil Engineering, 447–68. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-98678-0_10.

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AbstractForests mainly consist of long-lived trees or shrub species and are exposed to natural or human disturbances of different severities. They are essential components of the natural development of forest ecosystems, since by triggering natural selection and ecological succession processes, they can achieve the best status in terms of species composition and structure. Nevertheless, extreme events can cause serious economic or naturalistic losses and, in some cases, endanger specific forest ecosystems. Disturbance events that damage forests vary and include pests and diseases, fires, pollution, climate changes, overexploitation or inadequate silvicultural practices, excessive grazing and browsing, to name just a few. Health monitoring of forests is a necessary condition to provide useful information for the conservation of forest resources, as well as to support forest management practices aimed at increasing the resilience of forests and their adaptation capacity. Through ground surveys, the Italian national forest inventory INFC has classified the health condition of Italian forests and produced the estimates presented in the chapter. These concern the distribution of the Forest area by pathologies and damage presence, severity and cause. Estimates of the Forest area affected by defoliation, divided by defoliation class and localization of defoliation, are also presented.
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Gasparini, Patrizia, and Giancarlo Papitto. "The Italian Forest Inventory in Brief." In Springer Tracts in Civil Engineering, 1–15. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-98678-0_1.

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AbstractLarge-scale forest inventories are important sources of forest information at the national level in individual countries. These surveys have undergone strong development in recent times, driven by new information needs and by advances in statistical-mathematical theory and in survey methods and techniques. In Italy, the first national forest inventory was carried out in the mid-1980s. A thorough review of the sampling design and survey protocols was carried out in the second inventory, and the third survey has just been completed. This chapter briefly describes the history and organisational structure of the Italian National Forest Inventory and summarises its content and products.
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Williger, G., A. Smette, C. Hazard, J. Baldwin, and R. Mcmahon. "Large Scale Structure in the Lyα Forest." In New Horizons from Multi-Wavelength Sky Surveys, 329–31. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-1485-8_77.

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Gasparini, Patrizia, and Giovanni Tabacchi. "Changes of Italian Forests Over Time Captured by the National Forest Inventories." In Springer Tracts in Civil Engineering, 545–68. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-98678-0_13.

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AbstractIn order to effectively compare the results of different surveys, they should share the study domain, and the definitions and the classification and measurement criteria of the observed variables should be consistent. The inventory domain in the two Italian forest inventories, INFC2005 and INFC2015, has remained unchanged. The two surveys adopt a common classification system and common stratification criteria, by region and forest category, as well as the same measurement thresholds for quantitative and qualitative variables. This chapter illustrates the results of the comparisons between the estimates obtained from the two surveys for some features considered relevant for the analysis of the current dynamics of the Italian forests, such as the extension of the areas, the growing stock volume, the aboveground tree biomass, the annual volume increment and removals, and the number of trees. The results of the comparisons are sufficiently clear at the national level, while the estimates disaggregated by region or forest category sometimes show very limited variations and are associated with high standard errors of estimates.
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Brockerhoff, Eckehard G., Juan C. Corley, Hervé Jactel, Daniel R. Miller, Robert J. Rabaglia, and Jon Sweeney. "Monitoring and Surveillance of Forest Insects." In Forest Entomology and Pathology, 669–705. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-11553-0_19.

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AbstractMonitoring of insect populations is widely used in forest entomology in the context of biodiversity studies, as an aspect of pest management, and for the detection and surveillance of non-native invasive species. In particular, monitoring is undertaken to obtain information on the presence or abundance of particular species, to study their phenology (e.g. the time of oviposition or flight periods), to predict pest population size, spread and damage, or to determine if pest management activities are required. A wide variety of methods are being used for these purposes including physical surveys, the use of insect traps, molecular methods, as well as aerial surveys and remote sensing. This chapter focusses on some of the more important methods to provide an overview of the objectives and applications of monitoring and surveillance of forest insects. The principles of each method and common uses are explained and illustrated with case studies on prominent forest insects including the pine processionary moth (Thaumetopoea pityocampa), the Sirex wood wasp (Sirex noctilio), spongy moth (Lymantria dispar), bark beetles such as Ips typographus, and the brown spruce longhorn beetle (Tetropium fuscum). The chapter also explores statistical considerations and issues such as imperfect relationships between trap catch and the local population size of target species. Niche methods that are not widely used but have strengths in some situations (e.g. detector dogs for detection of Anoplophora glabripennis and other invasive species) or are still in development (e.g. e-noses and acoustic detection) are also discussed.
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McRoberts, Ronald E., Hans-Erik Andersen, and Erik Næsset. "Using Airborne Laser Scanning Data to Support Forest Sample Surveys." In Forestry Applications of Airborne Laser Scanning, 269–92. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-017-8663-8_14.

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Carvalho, Susana. "Diécké Forest, Guinea: Delving into Chimpanzee Behavior Using Stone Tool Surveys." In The Chimpanzees of Bossou and Nimba, 301–12. Tokyo: Springer Japan, 2011. http://dx.doi.org/10.1007/978-4-431-53921-6_31.

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Innes, J. L. "Some Factors Affecting the Crown Density of Trees in Great Britain Based on Recent Annual Surveys of Forest Condition." In Forest Decline in the Atlantic and Pacific Region, 40–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-76995-5_3.

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Conference papers on the topic "Forest surveys"

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KAVALIAUSKAS, Marius, Edgaras LINKEVIČIUS, Donatas JONIKAVIČIUS, and Kornelija KOKANKAITĖ. "PUBLIC OPINION ANALYSIS ON STATE FOREST MANAGEMENT: STUDY AREA IN KAIŠIADORYS MUNICIPALITY." In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.043.

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The relation between public and forest changes during the time. Public opinion and interests has considerable influence on decision making regarding forestry. Half of Lithuania’s forests (circa 1.1 mill. ha) has state forest status and are managed by state forest enterprises (SFEs) under confidence rights. One of the most important strategic aims for SFEs is to meet public needs. Yet, public opinion and forestry facts mismatches. Therefore, this study aims to analyse prevailing opinion on forestry practices in state forests managed by Kaišiadorių SFE that are located in Kaišiadoriai municipality. The sociological survey methodology was applied that was conducted involving respondents representing inhabitants over 18th years old. Data was analysed by conducting frequency analysis. Results showed incorrect public opinion concerning with increase of forest coverage, sustainable cutting intensity and increasing environmental consideration. According to opinion of the respondents, the quality of the forests, afforestation and forest sanitary was well improved by Kaišiadorių SFE. It was determined the demand to develop more recreation infrastructure objects in Kaišiadorys municipality forests. The comparison between surveys conducted in 2007 and 2014 showed increasing amount of public that was quite well informed on forestry issues. Also, it determined changes in information sources concerning forestry. Results of the research stressed the necessity of the long-term strategy for the information dissemination.
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Gogoberidze, George G. "MAIN RESULTS OF SUMMER OCEANOGRAPHIC SURVEYS IN THE EASTERN GULF OF FINLAND IN THE FRAMEWORK OF THE TOPCONS PROJECT." In 14th SGEM GeoConference on WATER RESOURCES. FOREST, MARINE AND OCEAN ECOSYSTEMS. Stef92 Technology, 2014. http://dx.doi.org/10.5593/sgem2014/b32/s15.085.

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Hogas, Horatiu-Iulian. "STUDY ON AN INCREASED EFFICIENCY OF TOPOGRAPHIC SURVEYS OF RIVERBEDS WITH SPECIFIC FOREST VEGETATION." In 16th International Multidisciplinary Scientific GeoConference SGEM2016. Stef92 Technology, 2016. http://dx.doi.org/10.5593/sgem2016/b22/s09.073.

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Bryukhan, Fedor. "ENGINEERING AND ENVIRONMENTAL SURVEYS OF FOREST-TUNDRA AREAS IN MIDDLE SIBERIA FOR CONSTRUCTION DEVELOPMENT." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017/52/s20.042.

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Bevers, Jeb, Chris Neff, Giovanni Hernandez, Dirilee Curtis, Steven Fiorentino, Adam D. Marsh, Matthew Smith, and Ben T. Kligman. "FIRST TWO SEASONS SURVEYS OF FOSSILS FROM FOUR HEMPHILLIAN LOCALITIES AT PETRIFIED FOREST NATIONAL PARK." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-334764.

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Ya., FROLOV, and Tishkin A. "FRAGMENTS OF METAL CAULDRONS FROM THE FOREST-STEPPE ALTAI AREA." In MODERN SOLUTIONS TO CURRENT PROBLEMS OF EURASIAN ARCHEOLOGY. Altai State Univercity, 2023. http://dx.doi.org/10.14258/msapea.2023.3.19.

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In the course of planned surveys of archaeological sites in the Forest-Steppe Altai at different times fragments of metal cauldrons were found. There are also among accidental finds. It is often difficult to determine the dating and cultural belonging of such objects. Therefore, little attention is paid to them. However, such finds have their own information potential and a certain archaeological context. In the course of data collection for the formation of a database on metal cauldrons found in the mountains and in the forest-steppe zone of Altai, the authors of the article attract the found fragments of such items, which should be introduced into the scientific circulation. Four fragments are presented in this publication. The results of X-ray fluorescence analysis are given, which allow cultural and chronological identification of the finds.
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Kozyreva, G. "ПРОБЛЕМЫ ИНСТИТУТОВ УСТОЙЧИВОГО РАЗВИТИЯ ЛЕСОСЫРЬЕВЫХ ПРИГРАНИЧНЫХ РЕГИОНОВ." In Perspektivy social`no-ekonomicheskogo razvitiia prigranichnyh regionov 2019. Институт экономики - обособленное подразделение Федерального исследовательского центра "Карельский научный центр Российской академии наук", 2019. http://dx.doi.org/10.36867/br.2019.59.32.023.

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Статья посвящена проблемам формирования институтов устойчивого развития лесосырьевых приграничных регионов. В качестве одного из таких институтов рассматривается институт лесной сертификации. Анализируются процессы эволюции российского лесного законодательства. Используются данные социологических опросов местных жителей. The article is devoted to the problems of the formation of institutions for the sustainable development of forest raw materials border regions. The institute of forest certification is considered as one of such institutions. The processes of evolution of Russian forest legislation are analyzed. The data of sociological surveys of local residents are used.
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Matelenok, I. V., F. A. Alekseev, and E. A. Evdokimova. "ORIENTATION OF SORBUS AUCUPARIA LEAVES BY THE RESULTS OF FIELD SURVEYS IN THE TERRITORY OF THE LENINGRAD REGION." In MODELING AND SITUATIONAL MANAGEMENT THE QUALITY OF COMPLEX SYSTEMS. Saint Petersburg State University of Aerospace Instrumentation, 2021. http://dx.doi.org/10.31799/978-5-8088-1558-2-2021-2-138-142.

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Methods for retrieving leaf inclination angles in a forest canopy are considered. To acquire data on the orientation of Sorbus aucuparia leaves, a technique based on leveled camera digital photography well suited for conducting surveys in a boreal forest was used. In the course of field and office work, leaf angle distribution data for the specified species in the Priozersky district of the Leningrad region was obtained and analyzed. Values of the Ross-Nielson integral function were estimated.
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Попова, А. К. "USE OF SATELLITE DATA TO INITIALIZE FOREST RESOURCE DYNAMICS MODELS." In Лесные экосистемы в условиях изменения климата: биологическая продуктивность и дистанционный мониторинг. Crossref, 2023. http://dx.doi.org/10.25686/foreco.2023.75.85.006.

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Прогнозирование структуры и состояния лесов в будущем помогает увидеть влияние климатических и антропогенных факторов на лесной ландшафт. Наличие достаточно точных прогнозов позволяет формировать стратегии управления лесами, которые помогут обеспечить устойчивость ресурса при минимальных негативных последствиях. При этом точность таких прогнозов сильно зависит от качества исходных данных. Наземное обследование леса для сбора данных о породах и возрасте деревьев требует времени и материальных затрат, которые возрастают с увеличением площади исследуемой территории. В работе описан подход сбора начальных данных для инициализации моделей лесных ресурсов из открытых источников. Предложено использовать наборы данных, составленные на основе спутниковых изображений. Информация о породах деревьев получена из набора GLC_FCS30 – глобальной классификации типов земной поверхности с разрешением 30 м, набор классов которой позволил выделить хвойные и лиственные группы пород, а также лиственницы. Возраст деревьев был определен по связи биомассы дерева с его возрастом, заданной в таблицах нормативно-справочных материалов. Значения биомассы взяты из набора ESA Biomass, составленного по результатам совмещения радарных и лидарных спутниковых съемок в единый растровый продукт с разрешением 100 м. Для получения итогового массива для инициализации модели были наложены друг на друга карты классификации и биомассы, каждому значению биомассы сопоставлен возраст в зависимости от породы дерева. Готовый породно-возрастной состав был поделен на участки в соответствии с картой кварталов лесничества и подан на вход модели LANDIS-II. Было проведено моделирование динамики леса на 100 лет, составлены прогнозные карты распределения средних возрастов деревьев. Forecasting the structure and condition of forests in the future helps to see the impact of climatic and anthropogenic factors on the forest landscape. The availability of sufficiently accurate forecasts allows the formation of forest management strategies that will help ensure the sustainability of the resource with minimal negative consequences. The accuracy of such forecasts strongly depends on the quality of the input data. Ground-based forest surveys to collect data on tree species and age require time and material costs, which increase with the size of the study area. The paper describes an approach to initial data collection for the initialization of forest resource models from open sources. We propose to use datasets compiled based on satellite images. Information on tree species was obtained from the GLC_FCS30 set, a global classification of land surface types with a resolution of 30 m, whose set of classes made it possible to identify coniferous and deciduous groups of species, as well as larch. The age of trees was determined from the relationship between tree biomass and tree age given in the reference material tables. Biomass values were taken from the ESA Biomass set, compiled from the results of combining radar and lidar satellite imagery into a single raster product at 100 m resolution. To get the final array for model initialization, classification and biomass maps were overlaid, and each biomass value was age-matched to a tree species. The finished species-age composition was divided into plots according to the forest quarter map and submitted to the input of the LANDIS-II model. Forest dynamics modeling for 100 years was carried out, and predictive maps of average tree age distribution were made.
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Dmitriev, E. V., T. V. Kondranin, P. G. Melnik, and S. A. Donskoy. "Statistical texture analysis of forest areas from very high spatial resolution satellite images." In Spatial Data Processing for Monitoring of Natural and Anthropogenic Processes 2021. Crossref, 2021. http://dx.doi.org/10.25743/sdm.2021.64.23.009.

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Aerospace images with a spatial resolution of less than 1 m are actively used by regional services to obtain and update information about various environmental objects. Considerable efforts are being devoted to the development of remote sensing methods for forest areas. The structure of the forest canopy depends on various parameters, most of which are determined by ground-based methods during forest management works. Remote sensing methods for assessing the structural parameters of forest stands are based on texture analysis of panchromatic and multispectral images. A statistical approach is often used to extract texture features. The basis of this approach is the description of the distributions characterizing the mutual arrangement of image pixels in grayscale. This paper compares the effectiveness of matrix based statistical methods for extracting textural features for solving the problem of classifying various natural and manmade objects, as well as structures of the forest canopy. We consider statistics of various orders based on estimates of the distributions of gray levels, as well as the mutual occurrence, frequency, difference and structuring of gray levels. The results of assessing the informativeness of statistical textural characteristics in determining various structures of the forest canopy are presented. Dependences of the classification results on the choice of distribution parameters are determined. For the quantitative validation of the results obtained, data from ground surveys and expert visual classification of very high resolution WorldView-2 images of the territories of Savvatyevkoe and Bronnitskoe forestries are used.
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Reports on the topic "Forest surveys"

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Morin, Randall S., Andrew M. Liebhold, K. W. Gottschalk, Chris W. Woodall, Daniel B. Twardus, Robert L. White, Stephen B. Horsley, and Todd E. Ristau. Analysis of forest health monitoring surveys on the Allegheny National Forest (1998-2001). Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station, 2006. http://dx.doi.org/10.2737/ne-gtr-339.

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Albert, Steven, Harry Jones, William DeMott, Dylan Schneider, and Christopher Calvo. Yellow-billed cuckoo surveys at Petrified Forest National Park: Final report for the 2023 field season. National Park Service, 2024. http://dx.doi.org/10.36967/2304871.

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Petrified Forest National Park is planning on removing invasive vegetation and restoring native plants along the Rio Puerco. Prior to removal, we conducted surveys for the federally Threatened Yellow-billed Cuckoo, following established survey protocols. Over the course of four surveys, we encountered two Yellow-billed cuckoos in each of two survey periods (four total detections, though possibly representing fewer than four birds). We did not detect any evidence of breeding behavior. We recommend continued monitoring for this species in the park, and proceeding with riparian restoration in accordance with methods that avoid negative impacts to Yellow-billed Cuckoos.
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Keeler-Wolf, Todd. Ecological surveys of Forest Service research natural areas in California. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 1990. http://dx.doi.org/10.2737/psw-gtr-125.

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May, Dennis M. Forest growth of Mississippi's north unit - A case study of the Southern Forest surveys growth estimation procedures. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station, 1988. http://dx.doi.org/10.2737/so-rb-134.

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Randy G. Balice, Jay D. Miller, Brian P. Oswald, Carl Edminster, and Stephen R. Yool. Forest surveys and wildfire assessment in the Los Alamos Region; 1998-1999. Office of Scientific and Technical Information (OSTI), June 2000. http://dx.doi.org/10.2172/758323.

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Smith, W. P., M. J. Stotts, B. A. Andres, J. M. Melton, A. Garibaldi, and K. Boggs. Bird, mammal, and vegetation community surveys of research natural areas in the Tongass National Forest. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2001. http://dx.doi.org/10.2737/pnw-rp-535.

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Czaplewski, Raymond L. Recursive restriction estimation: an alternative to post-stratification in surveys of land and forest cover. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2010. http://dx.doi.org/10.2737/rmrs-rp-81.

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Olson, Deanna H., Kelli J. Van Norman, and Robert D. Huff. The utility strategic surveys for rare and little-known species under the Northwest Forest Plan. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2007. http://dx.doi.org/10.2737/pnw-gtr-708.

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Larkin, Jeffery L., D. J. ,. Jr McNeil, Emma Keele, Jeffery T. Larkin, Michael Akresh, and David King. Assessing eastern whip-poor-will and monarch butterfly responses to NRCS conservation programs targeting early-successional habitats in the eastern forests. Washington, D.C: Natural Resources Conservation Service, January 2022. http://dx.doi.org/10.32747/2022.8135353.nrcs.

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Throughout the eastern deciduous forests of North America, a lack of disturbance coupled with advancing ecological succession in many regions has led to forests dominated by even-aged sawtimber with very little in the early successional stage. Monitoring of response of these target species to early successional communities created through Working Lands for Wildlife and Regional Conservation Partnership Programs have been completed. ARU-based regional monitoring protocol was used to assess whip-poor-will occupancy across various landscapes contexts, silvicultural treatments, and forest types in the Appalachian Mountain and New England regions. Researchers conducted milkweed, monarch egg, and larvae surveys simultaneously with the pollinator surveys. Preliminary results support that increasing milkweed and nectar-rich plants within alder and upland early successional communities will provide valuable resources for the monarchs and other pollinators in the northern Great Lakes.--
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Rudis, Victor A. Wildlife habitat, range, recreation, hydrology, and related research using Forest Inventory and Analysis surveys: a 12-year compendium. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station, 1991. http://dx.doi.org/10.2737/so-gtr-084.

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