Relevant bibliographies by topics / Tree clearing

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Tree clearing'

Author: Grafiati
Published: 4 June 2021
Last updated: 19 February 2023

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Journal articles on the topic "Tree clearing"

1

Kaur, K., R. K. Jalota, D. J. Midmore, and J. Rolfe. "Pasture production in cleared and uncleared grazing systems of central Queensland, Australia." Rangeland Journal 27, no. 2 (2005): 143. http://dx.doi.org/10.1071/rj05012.

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Clearing land of trees and introducing exotic pastures to enhance pasture and cattle production and hence enterprise financial performance are widely practised in Queensland. The results from many previous studies on tree clearing have emphasised the gains in pasture production, but over periods of less than 10–15 years after clearing. The present study questioned the sustainability of pasture production in cleared systems over a longer time-frame (>10 years of clearing). For this, three different age groups of clearing i.e. 5 year, 11–13 year and 33 year were selected in each of 3 major types of tree communities i.e. Eucalyptus populnea, E. melanophloia and Acacia harpophylla in central Queensland. Paired comparisons of cleared and uncleared (intact) pasture systems were selected for each age group of clearing. The results suggest that the initial gains in pasture production upon clearing were compatible with published studies. However, for longer periods of time since clearing, the gains in pasture production were not sustained and were accompanied by risks of land degradation and loss of pasture plant diversity. For E. populnea and A. harpophylla, the maximum benefits from clearing were achieved at 13–15 years whereas for E. melanophloia, any benefits existed only over a short period of 5–6 years. The study emphasises that each tree community exhibits a specific response with regard to the duration of increased pasture production following clearing. To estimate the total benefits from tree clearing in pasture development, it is important to consider both monetary benefits and non-monetary losses from clearing for different types of tree communities.
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2

Raich, James W., and Gong Wooi Khoon. "Effects of canopy openings on tree seed germination in a Malaysian dipterocarp forest." Journal of Tropical Ecology 6, no. 2 (May 1990): 203–17. http://dx.doi.org/10.1017/s0266467400004326.

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ABSTRACTThe germination of 43 tree species native to the lowland forests of Malaysia was monitored on forest soil in trays placed in closed-canopy forest, an artificial forest gap, and a large clearing. Germination varied significantly among habitats, with only seven species germinating well in all three sites. Seed germination of most species demonstrated clear patterns of shade tolerance or intolerance identical to those long recognized for tree seedlings. Favoured locations for germination were similar to known distributional patterns of adult individuals in mature and secondary forests. Most forest canopy species germinated in the gap, but germination in the large clearing was dramatically reduced or nil; the regeneration of these species in large clearings will be severely retarded even when seeds are present. Canopy-induced inhibition of germination was apparent in several pioneer species; seeds moved from the forest into the gap or clearing germinated rapidly. Results indicate that natural treefall gaps do not inhibit the germination of most species, but do allow pioneer species to germinate, and therefore regenerate. Although germination occurred in all three locations, the level of germination for particular species varied greatly among habitats. We conclude that germination requirements play a very important role in controlling the species composition of regeneration in forest understorey, gap, and large clearing habitats.
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Scanlan, J. C. "Some aspects of tree-grass dynamics in Queensland's grazing lands." Rangeland Journal 24, no. 1 (2002): 56. http://dx.doi.org/10.1071/rj02003.

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This review examines the interactions between grasses and trees that are relevant to Queensland's grazing lands. Soils and climate determine the potential amount of woody vegetation within an area and clearing, fire and grazing management can modify that potential. In general, the presence of non-leguminous trees reduces the potential grass production beneath their canopy and within woodland patches. Some non-native leguminous trees (e.g. Indian siris, Albizia lebbeck) enhance production of grasses beneath their canopies, whereas the widespread native leguminous trees, mulga (Acacia aneura) and brigalow (A. harpophylla) have not been reported to enhance grass production in the same way. At the patch scale, pasture production beneath woodlands with moderate to high tree basal areas is generally less than in open patches under the same soil and climatic conditions. At a landscape level, tree density, rainfall amount and distribution, and soil type modify pasture production within forest/woodland/shrubland systems. Grasses can reduce tree seedling survival but have little impact on mature woody plants, apart from providing fuel to carry a fire. Modelling studies have been used to examine some aspects of tree-grass production. Firstly, the relationship between grass production and an increasing amount of trees can vary from linear decrease, to exponential decrease to initial stimulation followed by a decrease, depending solely on the relative strengths of stimulatory and competitive effects of trees on grasses. Secondly, simulated pasture production within woodlands shows that the pasture production may be up to 50% higher in paddocks that have high variability in the distribution of those trees compared with areas where trees are uniformly distributed. This is due to the non-linear (negative exponential) relationship between pasture production and tree density that is commonly observed within Queensland. Lastly, simulation studies show that total aboveground production (trees and pasture) of mulga woodland increases as the number of trees per hectare increases. The pasture production response to tree clearing or tree planting depends on tree species, rainfall, soil type, climatic history and post-clearing management including fire and grazing, and will change with time since clearing. The greatest relative increase in pasture production following the removal of woody vegetation occurs: when the initial tree basal area is highest; where rainfall is evenly distributed though the year and on fertile soils with a low water holding capacity.
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4

Dobner Jr., Mário, Crysttian Arantes Paixão, Emanuel Arnoni Costa, and Cesar Augusto Guimarães Finger. "EFFECT OF SITE AND COMPETITION ON DIAMETER GROWTH OF Araucaria angustifolia." FLORESTA 49, no. 4 (September 19, 2019): 717. http://dx.doi.org/10.5380/rf.v49i4.58161.

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Although the historical interest in using the wood of Araucaria angustifolia, it is still little known concerning the factors that affect the growth. A broader understanding in this context might contribute to the development of appropriate management systems, thus increasing the productivity of plantations and, consequently, the interest in commercially using this species. The present study was based on monospecific populations established in different site conditions (Site Indices between 18-24) where individuals (n=654) were submitted to different competition levels. With the aid of multiple regression techniques, the factors that significantly affected the accumulated growth in diameter of the trees after 20 years of intervention were determined. For the set formed by all trees, 77% of the growth variation can be explained by three factors: site, the proportion of tree diameter at breast height (dbh) of the object tree for analysis in relation to the average dbh of the population before performing the clearings (Cdbh_before) and dominance status in relation to the neighboring trees (Call). The significance of the competition level before the clearing shows that late clearings have limited effects on tree growth. It is concluded that individuals are benefited for having a dominant position in relation to the neighboring trees, reaching diameters 50% larger at the end of the production cycle. Clearings that favour selected trees by removing direct competitors seem to be an interesting management strategy for the species.Keywords: Paraná-pine; Forest Management; Silviculture; Timber Production.
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Cole, Dennis M. "An indirect method for determining the order of expected thinning response among overstocked lodgepole pine stands." Canadian Journal of Forest Research 16, no. 5 (October 1, 1986): 875–79. http://dx.doi.org/10.1139/x86-156.

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Relationships for representing relative thinning response potential among overstocked lodgepole pine stands were investigated with data from 31 stands in four National Forests of Idaho. The common logarithm of mean 10-year cross-sectional increment of dominant and codominant trees on stand edges created by clearing was the dependent variable selected for examining relationships with a large number of tree, stand, and site variables. A linear regression model explained nearly 60% of the variance in the response variable. The model included variables representing mean 10-year periodic cross-sectional increment prior to clearing, site index, and quadratic mean stand diameter. As a predictor of edge-tree response to clearing, the model represents relative thinning response differences to be expected among overstocked lodgepole pine stands and thus reflects relative stand vigor.
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6

Kennedy, Dan. "From the 1990s: Climbing Around on the Tree of Mathematics." Mathematics Teacher 100, no. 5 (December 2006): 80–85. http://dx.doi.org/10.5951/mt.100.5.0080.

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This September 1995 article approaches creating a modern mathematics curriculum using a metaphoric tree of Mathematics. Author describes problem of optimal selection and sequencing of subjects. He supports the ladder of technology for reaching higher branches of the tree and argues for clearing the dead leaves of centuries of curricular material, clearing the view of beautiful tree of Mathematics.
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Kennedy, Dan. "From the 1990s: Climbing Around on the Tree of Mathematics." Mathematics Teacher 100, no. 5 (December 2006): 80–85. http://dx.doi.org/10.5951/mt.100.5.0080.

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This September 1995 article approaches creating a modern mathematics curriculum using a metaphoric tree of Mathematics. Author describes problem of optimal selection and sequencing of subjects. He supports the ladder of technology for reaching higher branches of the tree and argues for clearing the dead leaves of centuries of curricular material, clearing the view of beautiful tree of Mathematics.
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8

Dadashazar, Hossein, Ewan Crosbie, Mohammad S. Majdi, Milad Panahi, Mohammad A. Moghaddam, Ali Behrangi, Michael Brunke, Xubin Zeng, Haflidi H. Jonsson, and Armin Sorooshian. "Stratocumulus cloud clearings: statistics from satellites, reanalysis models, and airborne measurements." Atmospheric Chemistry and Physics 20, no. 8 (April 21, 2020): 4637–65. http://dx.doi.org/10.5194/acp-20-4637-2020.

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Abstract. This study provides a detailed characterization of stratocumulus clearings off the US West Coast using remote sensing, reanalysis, and airborne in situ data. Ten years (2009–2018) of Geostationary Operational Environmental Satellite (GOES) imagery data are used to quantify the monthly frequency, growth rate of total area (GRArea), and dimensional characteristics of 306 total clearings. While there is interannual variability, the summer (winter) months experienced the most (least) clearing events, with the lowest cloud fractions being in close proximity to coastal topographical features along the central to northern coast of California, including especially just south of Cape Mendocino and Cape Blanco. From 09:00 to 18:00 (PST), the median length, width, and area of clearings increased from 680 to 1231, 193 to 443, and ∼67 000 to ∼250 000 km2, respectively. Machine learning was applied to identify the most influential factors governing the GRArea of clearings between 09:00 and 12:00 PST, which is the time frame of most rapid clearing expansion. The results from gradient-boosted regression tree (GBRT) modeling revealed that air temperature at 850 hPa (T850), specific humidity at 950 hPa (q950), sea surface temperature (SST), and anomaly in mean sea level pressure (MSLPanom) were probably most impactful in enhancing GRArea using two scoring schemes. Clearings have distinguishing features such as an enhanced Pacific high shifted more towards northern California, offshore air that is warm and dry, stronger coastal surface winds, enhanced lower-tropospheric static stability, and increased subsidence. Although clearings are associated obviously with reduced cloud fraction where they reside, the domain-averaged cloud albedo was actually slightly higher on clearing days as compared to non-clearing days. To validate speculated processes linking environmental parameters to clearing growth rates based on satellite and reanalysis data, airborne data from three case flights were examined. Measurements were compared on both sides of the clear–cloudy border of clearings at multiple altitudes in the boundary layer and free troposphere, with results helping to support links suggested by this study's model simulations. More specifically, airborne data revealed the influence of the coastal low-level jet and extensive horizontal shear at cloud-relevant altitudes that promoted mixing between clear and cloudy air. Vertical profile data provide support for warm and dry air in the free troposphere, additionally promoting expansion of clearings. Airborne data revealed greater evidence of sea salt in clouds on clearing days, pointing to a possible role for, or simply the presence of, this aerosol type in clearing areas coincident with stronger coastal winds.
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Morris, L. Brian. "Utility Customer Tree Replacement." Arboriculture & Urban Forestry 16, no. 1 (January 1, 1990): 22–23. http://dx.doi.org/10.48044/jauf.1990.007.

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Utilities must prune trees in order to safely deliver electrical power and do It In a reliable manner. The ultimate answer to the ever increasingly difficult task of clearing lines from conflicting tree limbs in the urban setting is to have compatible tree species planted in and near the right-of-way rather than the larger maturing species. Duke Power, like many utilities, has decided to take a pro-active approach to the problem and initiate a customer tree replacement program to aid in procuring the customer's agreement to allow the removal of certain incompatible species.
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Umeghalu, ICE. "AGRICULTURAL LAND CLEARING IS IMPERATIVE FOR A SUCCESSFUL AGRICULTURAL MECHANIZATION PROGRAM IN NIGERIA." Agrobiological Records 10 (2022): 42–50. http://dx.doi.org/10.47278/journal.abr/2022.025.

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The rapid increase in population in Nigeria calls for an increase in agricultural production. Farming commences with land clearing. Traditionally, the manual land clearing method is still predominant in Nigeria, where the matchet, hoe and axe are the implement used for the operation. However, this land clearing method can no longer keep pace with the population explosion. The method is ideal for small areas of land with small trees and stumps when surplus labor is available; however, the manual method becomes tedious and costly for mechanized farming. Agricultural land clearing involves removal of natural vegetation from the land, stumping, mechanized tree knockdown, windrowing, wood-cutting and burning, removal of debris and pioneer plowing. The soil structures, crop nutrients, and soil moisturizing content crops need to grow are in the topsoil. Therefore, agricultural land clearing operations should aim at minimum topsoil disturbance-poorly cleared land results in poor yield and frequent damage to agricultural machines and equipment. To achieve adequate agricultural land clearing, special techniques, machines, tools, experienced machine operators, and adequate timing of land clearing operations are necessary. This review aims to offer information on adequate methods of agricultural land clearing, outlining the procedures to be followed, tools to employ and good timing for carrying out various stages of land clearing operations in different agricultural zones of Nigeria. Parameter for assessing good agricultural land clearing is also discussed.
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Dissertations / Theses on the topic "Tree clearing"

1

Blanchard, Ryan. "An investigation of riparian vegetation recovery following invasive alien tree clearing in the Western Cape." Master's thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/6235.

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Includes abstract.
Includes bibliographical references (leaves 113-134).
Riparian zones are dynamic, as a result of varying levels of disturbance from natural flooding regimes, and this makes them particularly susceptible habitats to invasion by alien plants. In South Africa, particularly the Fynbos Biome, closed-stand invasions by alien Acacia and Eucalyptus species have been able to develop within riparian areas. Their impacts on water resources and biodiversity have been countered by manual clearing in order to protect the valuable ecosystem services provided by intact riparian zones, as well as the biodiversity of indigenous communities. The Working for Water programme is tasked with the important role of controlling invasive alien plants with an assumption that indigenous vegetation will recover naturally. Current management objectives are to reduce above ground biomass of invasive alien plants by labour intensive means, after which indigenous vegetation is usually left to recover without further intervention. However, it is unclear to what extent natural recovery can be achieved. The main aims of this study were to ascertain the nature of riparian vegetation recovery, as well as determine which clearing treatment was most successful in promoting recovery. This was achieved by focusing on: 1) the recovery of species composition and biodiversity, 2) recovery of vegetation structure (assumed to be a surrogate for ecosystem function) and 3) whether a particular clearing treatment best promoted indigenous riparian vegetation recovery. Reference sites (control), as determined by Prins et aI., (2004), were compared to alien impacted sites in order to analyse variation among vegetation variables. Three initial clearing treatments were identified, namely: Fell Only (trees are felled and slash left on site), Fell & Remove (slash is removed from the riparian zone) and Fell & Bum (the slash is left for six months to a year before it is burnt).
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2

Sangha, Kamaljit Kaur, and Kamaljit kaur@jcu edu au. "Evaluation of the effects of tree clearing over time on soil properties, pasture composition and productivity." Central Queensland University. School of Biological and Environmental Sciences, 2003. http://library-resources.cqu.edu.au./thesis/adt-QCQU/public/adt-QCQU20060921.115258.

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Tree clearing is practised for greater beef production and hence monetary gains from grazing systems of central Queensland. The high rates of clearing in the past and even recently (577, 000 ha/yr during 1999-2001) were mainly to develop land for pastures. The sustainability of cleared pasture systems over the long-term is questioned. Three major types of tree communities i.e. Eucalyptus populnea F. Muell., E. melanophloia F. Muell. and Acacia harpophylla F. Muell. ex. Benth. were selected on one property in central Queensland to quantify the impacts of clearing on pasture production and composition, and soil properties. The impacts were measured over time-since-clearing (recent (<5 years), medium (11-13years) and old (>30 years)) in unreplicated cleared pastures in comparison to their replicated uncleared/intact woodland pastures of each tree community. Measures of pasture above-ground biomass production on a single property over time-sinceclearing in cleared systems showed that gains were not sustained over the long-term. The difference in response to clearing between tree communities was evident and important to support the future policy decisions. The impact of clearing on soil properties (physicochemical and biological) was confirmed, and explained the lesser availability of nutrients with time of clearing in cleared pastures. The changes in some soil properties underscored the associated risks and changes in ecosystem functions due to clearing. Less litter was produced at cleared than uncleared pastures, but nutrient release was faster at cleared compared to uncleared systems. The overall effect of clearing in terms of pasture and litter production, and major soil parameters were analysed using multivariate analyses.
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3

Laurent, Nathan R. "Mapping the landscape of public policy debate through analysis of evidence-based arguments in news media content: A case study." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/98725/1/Nathan%20Laurent%20Thesis.pdf.

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This case study of the debate around broad-scale land-clearing in Queensland adds to knowledge about the place of news media in resolving public policy issues. It includes an historical account of the issue, and from the evidence of newspaper contents, observes that some parties in such debates are likely to only conditionally accept policy outcomes, such as enacted legislation. Focusing on the regulation of broad-scale land-clearing between 1998 and 2006, the study identifies, analyses, and compares relevant, evidence-based arguments from policy stakeholders published in two Queensland newspapers: a metropolitan daily and a rural industry weekly.
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Hardwick, Kate. "Tree colonization of abandoned agricultural clearings in seasonal tropical Montane forest in Northern Thailand." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312403.

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Mangachena, Joy Rumbidzai. "Response of bird assemblages to the invasion and clearing of alien trees in the Western Cape, South Africa." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2583.

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Thesis (MTech (Conservation and Marine Sciences))--Cape Peninsula University of Technology, 2016.
Invasive alien plant species pose a major threat to global biodiversity by displacing native vegetation and transforming habitats. In South Africa, invasive alien plants have become a major component of most habitats. River systems are particularly affected owing to their dynamic nature and to anthropogenic activities. This has resulted in fynbos riparian scrub vegetation being replaced mainly by Acacia and Eucalyptus species, with serious ecological and economic impacts. The presence of alien trees along river banks leads to a reduction in native plant species richness and their high water consumption adds on to the existing water challenges in an already dry country. However, with regards to native fauna, it largely remains unknown both at small or large spatial scale, whether alien trees provide additional habitat which increases biodiversity, or if their presence leads to a reduction of native biodiversity. Impacts on water supply have led to large-scale clearing of invasive alien trees from riparian zones by the government through the Working for Water (WfW) programme. Monitoring and evaluation studies carried out after clearing are not well-rounded and mostly focus on vegetation response to clearing. Although some of these studies have reported successful restoration through passive methods, ecosystem recovery remains partial. There is evidently a lack of information regarding the response of animal communities to invasive alien plant clearing. Therefore, the main objective of this thesis was to investigate bird assemblage response to alien tree invasion and clearing. As a study system, I used the riparian area of the Berg River within the fynbos biome of the Cape Floristic Region, South Africa. The area historically consisted of renosterveld vegetation characterised by a matrix of shrubs and a high diversity of geophytes but relatively poor avifaunal diversity. This area is heavily affected by invasive alien trees and shrubs including Eucalyptus camaldulensis. I employed bird assemblages as an indicator, and used fixed-point bird counts to compare bird species richness and bird abundance between invaded and near-pristine habitats. Invasion by E. camaldulensis significantly reduced bird species richness and abundance. In particular, nectarivores and frugivores, which play important mutualistic roles in the fynbos, were reduced and unexpectedly; there were fewer raptors in invaded areas. I proceeded to carry out a space for time substitution, comparing plant and bird assemblages in invaded sites, near-pristine sites and in sites cleared in 2005, 2007, 2008 and 2014. A general increase in bird species richness and bird abundance with time since clearing exists with bird assemblages in cleared sites being similar to those in near-pristine sites. However, bird assemblages in cleared sites have not yet fully recovered a decade after clearing and four native plant species are still absent. In the third part of my thesis I assessed the impacts of invasive alien plants on bird assemblages at a larger spatial scale. The different responses shown by bird assemblages to invasive alien plant cover depended on the intensity of invasion, spatial scale and other land uses. From a bird’s eye view, this study supports the current clearing by WfW given the significant negative effects of invasive alien plants on bird diversity both at plot and large spatial scales. However, passive restoration is unsuccessful in restoring the full complement of plants and birds, therefore, active restoration should be considered. To limit the cost, I suggest a focused restoration approach of selected keystone tree species which can assist to establish a functional native ecosystem.
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6

(9832535), Kamaljit Sangha. "Evaluation of the effects of tree clearing over time on soil properties, pasture composition and productivity." Thesis, 2003. https://figshare.com/articles/thesis/Evaluation_of_the_effects_of_tree_clearing_over_time_on_soil_properties_pasture_composition_and_productivity/13422212.

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The overall effect of tree clearing on pasture, litter production and major soil parameters were analysed using multivariate analysis.. "Tree clearing is practised for greater beef production and hence monetary gains from grazing systems of central Queensland. The high rates of clearing in the past and even recently (577, 000 ha/yr during 1999-2001) were mainly to develop land for pastures. The sustainability of cleared pasture systems over the long-term is questioned. Three major types of tree communities i.e. Eucalyptus populnea F. Muell., E. melanophloia F. Muell. and Acacia harpophylla F. Muell. ex. Benth. were selected on one property in central Queensland to quantify the impacts of clearing on pasture production and composition, and soil properties. The impacts were measured over time-since-clearing (recent (<5 years), medium (11-13years) and old (>30 years)) in unreplicated cleared pastures in comparison to their replicated uncleared/intact woodland pastures of each tree community. Measures of pasture above-ground biomass production on a single property over time-sinceclearing in cleared systems showed that gains were not sustained over the long-term. The difference in response to clearing between tree communities was evident and important to support the future policy decisions. The impact of clearing on soil properties (physicochemical and biological) was confirmed, and explained the lesser availability of nutrients with time of clearing in cleared pastures. The changes in some soil properties underscored the associated risks and changes in ecosystem functions due to clearing. Less litter was produced at cleared than uncleared pastures, but nutrient release was faster at cleared compared to uncleared systems. The overall effect of clearing in terms of pasture and litter production, and major soil parameters were analysed using multivariate analyses. -- abstract
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Books on the topic "Tree clearing"

1

Puttock, G. David. Evaluation of site preparation with Young's Teeth on sites with dense residual poplars. Sault Ste. Marie, Ont: Great Lakes Forestry Centre, 1987.

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Cochrane, John H. Two trees: Asset price dynamics induced by market clearing. Cambridge, Mass: National Bureau of Economic Research, 2003.

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The production, economic, and environmental impacts of tree clearing in Queensland: A report to the Working Group of the Ministerial Consultative Committee on Tree Clearing. [Australia]: The Working Group, 1995.

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Northeastern Forest Experiment Station (Radnor, Pa.), ed. Financial aspects of partial cutting practices in central Appalachian hardwoods. [Radnor, Pa.](5 Radnor Corporate Center, 100 Matsonford Rd., Suite 200, P.O. Box 6775, Radnor 19087-4585): [U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1993.

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Wilmoore, Aaron. Tea Tree Oil for Acne: Everything You Need to Know about Tea Tree Oil and How Its the Most Potent Natural Treatment for Clearing Acne! Independently Published, 2019.

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Ellwood, Vincent. Basic Guide to Tea Tree Oil for Acne Treatment: All You Need to Know about Tea Tree Oil and How Its the Most Potent Natural Treatment for Clearing Acne! Independently Published, 2019.

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Trees on farms to reduce salinity in the clearing control catchments. East Perth, W.A: The Commission, 1994.

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E I Du Pont de Nemours & Company. Du Pont Farmer's Handbook; Instructions in the Use of Dynamite for Clearing Land, Planting and Cultivating Trees, Drainage, Ditching and Subsoiling. Creative Media Partners, LLC, 2015.

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Hand Book of Explosives; Instructions in the Use of Explosives for Clearing Land, Planting and Cultivating Trees, Drainage, Ditching, Subsoiling and O. HardPress Publishing, 2013.

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E I Du Pont De Nemours & Company Explo. Farmer's Handbook of Explosives: Instructions in the Use of Explosives for Clearing Land, Planting and Cultivating Trees, Subsoiling, Ditching and Other Purposes. Franklin Classics Trade Press, 2018.

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Book chapters on the topic "Tree clearing"

1

Flores, Lucila Corral. "National Tree Clearing Program: An Environmental Crime for Mexico." In Green Crime in Mexico, 75–86. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75286-0_6.

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"work [n] [US], tree clearing." In Encyclopedic Dictionary of Landscape and Urban Planning, 1142. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-76435-9_16447.

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"clearing work [n] [US], tree." In Encyclopedic Dictionary of Landscape and Urban Planning, 133. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-76435-9_1943.

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"tree clearing work [n] [US]." In Encyclopedic Dictionary of Landscape and Urban Planning, 1053. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-76435-9_15156.

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"819 clearing [n] and removal [n] of tree stumps." In Encyclopedic Dictionary of Landscape and Urban Planning, 132–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-76435-9_1940.

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"6527 tree clearing [n] and stump removal (operation) [n] [US]." In Encyclopedic Dictionary of Landscape and Urban Planning, 1053. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-76435-9_15155.

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Zola, Émile. "CHAPTER VII." In Germinal. Oxford University Press, 2008. http://dx.doi.org/10.1093/owc/9780199536894.003.0028.

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They met at Le Plan-des-Dames, in a great clearing* recently opened by some tree-fellers. It stretched away in a gentle slope, surrounded by a high thicket of lofty beeches, whose regular line of straight trunks made a white colonnade, speckled green with...
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Bellany, Alastair, and Thomas Cogswell. "A True Clearing?" In The Murder of King James I, 245–63. Yale University Press, 2015. http://dx.doi.org/10.12987/yale/9780300214963.003.0015.

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"CHAPTER ELEVEN. A TRUE CLEARING? BUCKINGHAM’S DEFENCE." In The Murder of King James I, 245–63. Yale University Press, 2017. http://dx.doi.org/10.12987/9780300217827-020.

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Crook, Tony. "kuk." In Anthropological Knowledge, Secrecy and Bolivip, Papua New Guinea. British Academy, 2007. http://dx.doi.org/10.5871/bacad/9780197264003.003.0006.

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Some gardeners say that they think sorrowfully about their children whilst they work, of how they might one day return to the same place and remember their parent cutting trees and carrying a heavy net-bag of taros back to the village. Clearing a garden from primary forest is a larger task than clearing regrowth, yet people insist on the appetite-satisfying quality. Certain important trees should not be cut down, and remain as markers of previous garden sites and for hunting trips. Differences between the movements of more junior and more senior men are also evident in the yolam during the sum wok takamin rite. The events after the showing of mafum-ban are described. Mafum-ban intends two apparently alternate effects, preparing the young men for marriage by making them irresistibly handsome, and preparing them for fighting by making them devastatingly violent.
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Conference papers on the topic "Tree clearing"

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Chowdhury, Moinul Morshed Porag, Christopher Kiekintveld, Son Tran, and William Yeoh. "Bidding in Periodic Double Auctions Using Heuristics and Dynamic Monte Carlo Tree Search." In Twenty-Seventh International Joint Conference on Artificial Intelligence {IJCAI-18}. California: International Joint Conferences on Artificial Intelligence Organization, 2018. http://dx.doi.org/10.24963/ijcai.2018/23.

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In a Periodic Double Auction (PDA), there are multiple discrete trading periods for a single type of good. PDAs are commonly used in real-world energy markets to trade energy in specific time slots to balance demand on the power grid. Strategically, bidding in a PDA is complicated because the bidder must predict and plan for future auctions that may influence the bidding strategy for the current auction. We present a general bidding strategy for PDAs based on forecasting clearing prices and using Monte Carlo Tree Search (MCTS) to plan a bidding strategy across multiple time periods. In addition, we present a fast heuristic strategy that can be used either as a standalone method or as an initial set of bids to seed the MCTS policy. We evaluate our bidding strategies using a PDA simulator based on the wholesale market implemented in the Power Trading Agent Competition (PowerTAC) competition. We demonstrate that our strategies outperform state-of-the-art bidding strategies designed for that competition.
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Ahmed, Saad, and Zoubeida Ounaies. "Self-Clearing of Metalized Electrodes and its Impact on Electroactive Polymer (EAP) Based Actuators." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9107.

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EAP based actuator technologies are extensively studied to design smart/intelligent systems ranging from deployable space structures, morphing wings, to medical devices and artificial muscles. Despite the extensive research on electroactive polymers (EAP), practical implementation of this technology is slow because of low induced forces and defect-driven premature electrical breakdown. Multilayered or stacked configuration can address the low induced force issue. However, construction procedure of multilayered sample is susceptible to more defects, which can further aggravate defect-driven premature breakdown of EAP actuators. Reducing the number of defects using self-clearing concept can improve the EAP actuators’ ability to withstand high electric fields. Self-clearing refers to the partial local breakdown of dielectric medium due to the presence of impurities, which in turn results in the evaporation of some of the metalized electrodes. After this evaporation, the impurity is cleared and any current path would be safely cut off, which means the actuator continues to perform, albeit with a reduced actuation area due to electrode evaporation. In this paper we study the impact of self-clearing metalized silver electrodes on the electrical and electromechanical behavior of EAPs, more specifically P(VDF-TrFE-CTFE) terpolymer. First, we use Weibull statistics to systematically estimate the self-clearing/preconditioning field needed to clear the defects. Then electrical breakdown experiments are conducted with and without preconditioning the samples to investigate their effects on the breakdown strength of the EAP. Finally, we implement this self-clearing/preconditioning field on single and multilayered P (VDF-TrFE-CTFE) unimorph actuators and investigate the resulting electromechanical performance. Due to preconditioning of the actuators using self-clearing concept, the actuators endure higher electric fields compared to a control sample. Loss of capacitance occurs during self-clearing, which in turn affects the electromechanical performance of the actuator. For that reason, we also report on the blocked force of preconditioned and controlled actuators to evaluate and compare their electromechanical performance.
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DUBROVSKIS, Edgars, Aigars INDRIKSONS, Olga MIEZĪTE, and Lelde HERMANE. "SUCCESSION OF GROUND COVER VEGETATION IN HYLOCOMIOSA FOREST SITE TYPE AFTER THE CLEARCUT." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.110.

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Nowadays forestry sector uses forest site type descriptions developed from beginning of 20th century till 1980’s and descriptions are obtained for pre-mature and mature stand age. There is less information about ground cover vegetation for full rotation cycle. In this research has been gathered information about ground cover vegetation succession in first 5 years after clear cut in mature Scots pine stand. The chronosequence method was used. The Brown-Blanquet and the point-square methods for accounting of ground cover plants were used. The ecological values of Ellenberg for describing the environmental status and the coefficient of Tschekanovsky for estimation of the difference between plant communities in forest young growths of different age were used. The biological diversity of species in this research compared to mature stand also is increasing. Ellenberg’s ecological indicator values as light and nitrogen are also increasing: nitrogen value has increased the most - by 2.62 units. There are registered changes in vascular plants, mosses, lichens and trees projective covering’s proportion. The most significant changes in individual species occurrence are between the second and third year's (Tschekanovsky coefficient = 0.19). Five years after clear cut the Tschekanovsky coefficient between the mature stand and five years old clearing is 0.18. In the 4th and 5th year after the clear cut there increase the projective cover of Monocotyledonae plants (families Graminaea and Cyperaceae) forming higher vertical structure and overtaking the dominance from another groups. The results obtained in this research promote further research in different stand age.
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Neydorf, Rudolf. "“Cut-Glue” Approximation in Problems on Static and Dynamic Mathematical Model Development." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37236.

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The solution to the problem on building mathematical models of technical objects through the approximation of various experimental dependences is offered in the paper. This approach is especially true for modeling aircraft because the aerodynamic coefficients of their models can be obtained either by full-scale study or by computer simulation only. Currently, the experimental simulation is performed either through the regression analysis (RGA) methods, or through spline approximation. However, the RGA has a significant disadvantage, namely a poor approximability of piecewise and multiextremal dependencies. The RGA gives a rough approximation of the experimental data for similar curves. Spline approximation is free from this disadvantage. However, a high degree of discretization, a strict binding to the number of spline points, and a large number of equations, make this approach inconvenient for application when a compact model building and an analytic transformation are required. A problem solution combining the advantages of both approaches and clearing up the troubles is offered in the paper. The proposed approach is based on the regression construction of the mathematical models of the dependence fragments, the multiplicative excision of these fragments in the local functional form, and on the additive combining of these local functions into a single analytic expression. The effect is achieved by using special “selection” functions multiplicatively limiting a nonzero definition domain for each of the approximating functions. The method is named “cut-glue” by the physical analogy of the approximation techniques. The order and structure of the approximating function for each segment can be arbitrary. A significant advantage of the “cut-glue” approximation is in a single analytic expression of the whole piecewise function instead of a cumbersome system of equations. The analytical and numerical studies of the properties and operational experience of the proposed method are resulted.
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Lehtinen, T., J. Knuuttila, J. Vattulainen, T. Mäntylä, and R. Hernberg. "Correlations Between In-Flight Particle Concentrations and Coating Properties in Atmospheric Plasma Spraying of Alumina." In ITSC 1996, edited by C. C. Berndt. ASM International, 1996. http://dx.doi.org/10.31399/asm.cp.itsc1996p0525.

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Abstract The plasma spraying process is controlled by various parameters that have an influence on powder particle velocities, temperatures and trajectories just before impact to the substrate. In order to fully utilize the thermal and kinetic energy of the plasma it is important to obtain information from these powder particle properties. In this work an intensified CCD camera has been used to detect in-flight particles in an atmospheric plasma spraying process. Plasma spraying was performed using fused and crushed AI2O3 powder. The powder carrier gas flow rate was varied during the spraying experiments. All the other deposition parameters were kept constant. Coatings produced using relatively new spraygun electrodes are compared with ones produced later with the same electrodes when they were worn out. The particle concentration is determined on a relative scale by the fraction of the area of a CCD camera frame covered by particle images. Further investigations necessary to clearify the relationship between the measured relative particle concentration and the true particle concentration are identified. The coatings are analyzed for wear resistance, degree of melting, deposition efficiency, hardness and porosity. The dependence of these coating properties on the relative particle concentration and the effect of electrode wear on the relative particle concentration are studied.
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Reports on the topic "Tree clearing"

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Barndt, Shawn L. Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-111) - (Fairview-Bandon #1, Fairview-Bandon #2 and Fairview-Rogue #1 access road, danger tree and structure clearing). Office of Scientific and Technical Information (OSTI), September 2002. http://dx.doi.org/10.2172/824169.

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Cochrane, John, Francis Longstaff, and Pedro Santa-Clara. Two Trees: Asset Price Dynamics Induced by Market Clearing. Cambridge, MA: National Bureau of Economic Research, November 2003. http://dx.doi.org/10.3386/w10116.

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Toutin, Th, and S. Amaral. Measuring Clearings and Tree Heights with Stereo RADARSAT Data in a Tropical Environment. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1997. http://dx.doi.org/10.4095/219007.

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