Thematische Bibliographien / Reforestation – algeria

Auswahl der wissenschaftlichen Literatur zum Thema „Reforestation – algeria“

Autor: Grafiati
Veröffentlicht am 27. Juli 2024
Zuletzt aktualisiert am 29. Juli 2024

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Zeitschriftenartikel zum Thema "Reforestation – algeria"

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Merdas, Saifi, Tewfik Mostephaoui und Mohamed Belhamra. „Reforestation in Algeria: History, current practice and future perspectives“. REFORESTA, Nr. 3 (01.07.2017): 116. http://dx.doi.org/10.21750/refor.3.10.34.

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Reforestation in Algeria has been recognized as a priority in different programs for the development and enhancement of forest heritage. Degradation factors of forest and soil contribute significantly to the decline in land values. The Algerian forests in the past, during the colonial period suffered considerable degradation. The degraded forest heritage has been undertaken with serious programs since independence. Several programs for the development of the forest sector through reforestation have been carried out. Unfortunately, the achievements were still below expectations. The launch of the National Reforestation Plan in 2000 has given the forestry sector a new lease of life with a vision that incorporates the productive aspect of reforestation, the industrial aspect, and the recreational aspect. Before the end of the NRP timeline, significant reforestation projects are completed. In a future projection, reforestation is integrated into the land use planning within the framework of the National Plan of Land Use Planning.
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Khadidja, Daoudi, und Sitayeb Tayeb. „Effects of Land Use Changes on the Soil Physicochemical Properties in South-Western Algeria“. Ekológia (Bratislava) 39, Nr. 3 (01.09.2020): 224–35. http://dx.doi.org/10.2478/eko-2020-0017.

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AbstractThis study shows the impact of the reforestation program by some tree species (Pinus halepensis, Cupressus sempervirens and Eucalyptus camaldulensis) on the soil physicochemical parameters in south-western Algeria steppe. The study was realized on soil samples from the Touadjeur site. One hundred soil samples were taken from the field, followed by physicochemical analyses in the laboratory. A comparison of the soil elements between reforested and unreforested sites considered as a control was carried out. The results show that there are differences in the physicochemical parameters of the soil between the reforestation and the non-reforestation ones constituted by a steppe vegetation. The ANOVA one way test shows a highly significant difference change in soil physical parameters, moisture, holding capacity and saturated hydraulic conductivity, but no change in apparent density, actual density and color. Also, from a chemical point of view, the differences concern the organic matter, organic carbon, pH and certain soil contents. The main differences in soil properties between the reforestation sites and the control site, reflect the consequences of forest management adopted by the forest services, most probably the choice of reforestation species.
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Ford, Caroline. „Reforestation, Landscape Conservation, and the Anxieties of Empire in French Colonial Algeria“. American Historical Review 113, Nr. 2 (April 2008): 341–62. http://dx.doi.org/10.1086/ahr.113.2.341.

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Zaid Bouchou Lynda, Gachi Mustapha und Chakali Gahdab. „Fecundity of The Pine Processionary, Thaumetopoea Pityocampa (Denis & Schiffermüller, 1775) In The Case Of Reforestation In Moudjbara (Djelfa - Algeria)“. Journal of Advanced Zoology 44, Nr. 4 (25.11.2023): 625–36. http://dx.doi.org/10.17762/jaz.v44i4.2132.

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A study of the fecundity of female populations of the pine processionary in the Moudjbara reforestation indicates that there are cyclical variations in the reproduction of this species. Descriptive analysis of pine processionary oviposition lengths showed greater significance for oviposition deposited on needles than for oviposition deposited on twigs. A very highly significant difference was noted between the lengths of the egg-laying supports from the Moudjbara reforestation (p=0.0001). The 195 pine processionary oviposition sites revealed a total of 37,272 eggs, with an average of 191 eggs per oviposition site. Analysis of the variance between the various categories of eggs showed a highly significant probability (p=0.0001). Three parasitoids were identified that emerged from oviposits collected at the Moudjbara reforestation site, with rates varying from year to year. T. embryophagum was encountered only sporadically in 2018, 2019 and 2021, with respective percentages not exceeding 2%. For the four pine processionary caterpillar populations studied, B. servadeii appeared to be more abundant than O. pityocampae. The number of B. servadeii adults observed reached 83.91% in 2020. Parasitoid activity was greater on eggs located at the ends of the clutch. It also appears that O. pityocampae mainly parasitizes the upper part of the egg, whereas B. servadeii shows a preference for the lower part.
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Djebbouri, Mohammed, Mohamed Zouidi, Mohamed Terras und Abdelaziz Merghadi. „Predicting suitable habitats of the major forest trees in the Saïda region (Algeria): A reliable reforestation tool“. Ekológia (Bratislava) 41, Nr. 3 (01.09.2022): 236–46. http://dx.doi.org/10.2478/eko-2022-0024.

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Abstract Modeling potential habitat for plant species is an appropriate approach to maintain biodiversity, developing proper reforestation campaigns, and rehabilitating ecosystems. In this study, we investigated the potential distributions of four forest species, namely, Quercus faginea Lam.; Q. ilex L.; Tetraclinis articulata (Vahl) Mast.; and Pistacia atlantica Desf. In the north-western Algeria at Saïda region. The MAXENT method was used to model the habitats of these species using topographic data as predictive variables at a resolution of 100 m. Moreover, the model evaluation process was achieved using the area under the operating characteristic curve of the receiver (AUC) and Jackknife test. The generated models were found to be accurate. AUC results are ranging between 0.98 and 0.91 for the training set and 0.87 and 0.97 for the testing set. The results of the distribution probability of this study provide a useful tool for the local decision-makers of reforestation campaigns.
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Benhizia, Ramzi, Yacine Kouba, György Szabó, Gábor Négyesi und Behnam Ata. „Monitoring the Spatiotemporal Evolution of the Green Dam in Djelfa Province, Algeria“. Sustainability 13, Nr. 14 (16.07.2021): 7953. http://dx.doi.org/10.3390/su13147953.

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Green walls and green dams are increasingly being considered as part of many national and international desertification initiatives. This paper studies the spatiotemporal evolution of the green dam in the Moudjbara region (Djelfa Province, Algeria), from 1972 to 2019, by using Landsat imagery, Land Change Modeler, and OpenLand package. The future evolution of pine plantations, for the year 2029, was also forecasted, based on an anthropogenic scenario (i.e., anthropogenic pressure is the main driver of the green dam destruction). Our findings revealed that the green dam project was successful for a few years, but, after that, pine plantations deteriorated significantly, due to forest harvesting, livestock overgrazing, and the proliferation of the pine caterpillar processionary, which destroyed most of the reforestation. Land change modeler predicted a huge degradation of pine plantations for the year 2029, and if the deforestation continues at the same rate, the green dam in the Moudjbara region will disappear during the next few decades. Being aware of this threat, the Algerian authorities are now planning to reforest more than 1.2 million ha under the latest rural renewal policy, by introducing new principles related to sustainable development, fighting desertification, and climate change adaptation. We strongly recommend moving away from the singular tree planting focus, to diversifying desertification control methods.
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Hassen, Benfetta, und Ouadja Abid. „Surface water leakage, sedimentation and evaporation in arid regions: A case study of the Gargar dam, Algeria“. Journal of Water and Land Development 35, Nr. 1 (01.12.2017): 73–81. http://dx.doi.org/10.1515/jwld-2017-0070.

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AbstractThis study was carried out in order to assess the total capacity loss in Gargar dam, third-largest in Algeria, due to the mudding of the reservoir, intense evaporation and water leaks. We analysed the variation in leakage as a function of the reservoir level, and quantify losses due to leaks, sedimentation and evaporation. We relied on site visits and data obtained from the Algerian Agency for Dams and Transfers to assess the leakage volume; reservoir level; sedimentation and evaporation levels for the period 1988–2015. We present an updated report of this problem through the dam. We estimated total average losses of 23 million m3·year−1 for the period 1988–2015, made up of leakage (0.3 million m3·year−1), evaporation (18 million m3·year−1) and dead storage for 4.6 million m3·year−1. However, total losses for 2004 were estimated at 113.9 million m3, which increased to the alarming value of 166.8 million m3 in 2015. We suggest improving the waterproofness by a concrete screen, and reducing mudding and evaporation by reforestation, to increase the storage capacity of the dam.
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Dib, Tassadit, Dimitrios Kazanis, Margarita Arianoutsou, Mahand Messaoudene und Fazia Krouchi. „Post-fire regeneration of cork oak (Quercus suber) in Kiadi forest (Akfadou- Algeria)“. Mediterranean Botany Online first (19.09.2022): 1–14. http://dx.doi.org/10.5209/mbot.77999.

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Cork oak (Quercus suber) as a West Mediterranean species is known for its ecological, economic and social values. Wildfires are one of the most serious problems threatening Quercus suber, endangering its occurrence in its area of distribution. Therefore, knowing the behavior of the species after fire and the factors influencing its responses are particularly important for forest management. In this study we assessed the post fire vegetative recovery in 730 trees affected by wildfires on 2014 in Kiadi cork oak forest, located in the Western side of Akfadou Mountains in Algeria. Few months after the fire, individual tree mortality was very low (7.53%), and nearly, all the trees sampled survived the fire since almost all trees resprouted from canopy and some of them showed basal resprouts. Moreover, those two modes of post fire vegetative recovery were not correlated to each other. The performed redundancy analyzes (RDA) revealed that the cork oak post-fire response was highly correlated with individual characteristics and with the environmental data. The main variables influencing the likelihood of good or poor vegetative recovery were the understory height and cover, soil characteristics, fire severity, tree status (alive/dead trees), tree diameter and tree exploitation. Our results confirmed the fire resistance of cork oak species; which is also the only Algerian tree to resprouts. Hence, this makes the species a good candidate for reforestation programs in fire prone ecosystems.
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Kheloufi, Abdenour, und Lahouaria Mounia Mansouri. „Effect of seawater irrigation on germination and seedling growth of Carob tree (Ceratonia siliqua L.) from Gouraya National park (Béjaïa, Algeria)“. Reforesta, Nr. 10 (30.12.2020): 1–10. http://dx.doi.org/10.21750/refor.10.01.84.

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The carob tree (Ceratonia siliqua L.) is an important component of the Mediterranean vegetation and its cultivation is important environmentally and economically. It is also an interesting leguminous species for afforestation-reforestation. In this study, carob seeds collected in a representative area of the Mediterranean basin at the national park of Gouraya (Béjaïa, Algeria), were subjected to germination tests under Mediterranean seawater (SW) irrigation of different concentrations (0, 10, 30, 50 and 100% SW) for 15-day period. Before germination tests, a 20 min pre-treatment with 96% sulphuric acid was necessary to overcome seed coat dormancy which does not permit germination. Results showed that the seeds of C. siliqua were able to germinate at different seawater concentration, except for 50% SW and 100% SW which resulted in total inhibition of germination. The maximum number of C. siliqua seed germination of 100% FGP (final germination percentage) appeared at 0% SW and 10% SW. Only 35.5% of the seeds have germinated in 30% SW. Ungerminated seeds of C. siliqua from different SW treatments showed medium germination recovery (FGPRecov) of 39.9% at 50% SW and low recovery of 18.2% at 100% SW when transferred to distilled water after 15 day-period. Seedlings length and seedling fresh and dry weight were significantly (P<0.001) decreased with increasing SW concentrations. Seedling water content remained constant in 10% SW in comparison with the control, while it decreased very slightly in 30% SW. These findings may serve as useful information for C. siliqua habitat establishment and afforestation-reforestation programs in coastal sites and for exploiting seawater in the area.
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Mokhtari, El Hadj, Boualem Remini und Saad Abdelamir Hamoudi. „Modelling of the rain–flow by hydrological modelling software system HEC-HMS – watershed’s case of wadi Cheliff-Ghrib, Algeria“. Journal of Water and Land Development 30, Nr. 1 (01.09.2016): 87–100. http://dx.doi.org/10.1515/jwld-2016-0025.

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Abstract The purpose of this study is to make a hydrologic modelling type of rain–flow on watershed of wadi Cheliff-Ghrib, by means of HEC-HMS model. Afterwards, this model is used to predict hydrologic response of the basin to the climate changes scenarios and land use. The model calibration was made in two phases; the first one is to select events, formalism of transfer function and appropriate NRCS downpour. The second is to deduce optimised parameters set which is used in validation. By using optimised parameters set, we were able to predict impact of quantiles downpours, changes in land use due to urbanisation, deforestation and reforestation on the peak flow and on runoff volume. Towards the end, we reconfirmed that influence of land use decreases for extreme storms.
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Bücher zum Thema "Reforestation – algeria"

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D, Eppinger Steven, Hrsg. Product design and development. 2. Aufl. Boston: Irwin/McGraw-Hill, 2000.

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2

D, Eppinger Steven, Hrsg. Product design and development. 3. Aufl. Boston: McGraw-Hill/Irwin, 2004.

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3

D, Eppinger Steven, Hrsg. Product design and development. 5. Aufl. New York, NY: McGraw-Hill/Irwin, 2011.

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4

D, Eppinger Steven, Hrsg. Product design and development. 4. Aufl. Boston: McGraw-Hill Higher Education, 2008.

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5

Product Design And Development. Mcgraw-hill, 2011.

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6

Product Design and Development. 4. Aufl. McGraw-Hill Education Singapore, 2007.

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7

ISE Product Design and Development. McGraw-Hill Education, 2019.

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Product Design and Development. McGraw-Hill Education, 2015.

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Product Design and Development. McGraw-Hill Education, 2019.

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Buchteile zum Thema "Reforestation – algeria"

1

„6. Reforestation and the Anxieties of Empire in Colonial Algeria“. In Natural Interests, 138–63. Harvard University Press, 2016. http://dx.doi.org/10.4159/9780674968875-008.

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