Results 11 to 20 of about 80,122 (255)
A Unifying Concept for Growth Trends of Trees and Forests – The “Potential Natural Forest”
Changes in the environment will alter the growth rate of trees and forests. Different disciplines assess such growth rates differently, for example, with tree-ring width data, forest inventories or with carbon-flux data from eddy covariance towers.
Mario Trouillier +3 more
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The leakage of underground natural gas has a negative impact on the environment and safety. Trace amounts of gas leak concentration cannot reach the threshold for direct detection.
Kangni Xiong +5 more
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Assessing Vegetation Heritage Value: The Alentejo Central (Portugal) as a Case Study
Vegetation natural heritage can be valued in itself, but also as a habitat for many wildlife species. This study presents a methodological essay concerning the evaluation of plant heritage, applied in Central Alentejo, in the south of Portugal.
Teresa Batista +3 more
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: Based on a map of potential natural vegetation (PNV), actual vegetation was studied in the Mramor locality (106.4 ha). A total of 188 relevés were examined using stratified random sampling. A comparison was made between trends in vegetation variability
P. Šamonil, K. Polesná, P. Unar
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Bioévaluation du paysage végétal du massif du Haut-Vénacais (Haute-Corse)
Located in the center of Corsica, the Haut-Vénacais massif is one of the most diversified mountainous areas in terms of vegetation landscape. This massif was chosen in the framework to an ecological and conservation status assessessment.
Pauline Delbosc +3 more
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Soil Response to Agricultural Land Abandonment: A Case Study of a Vineyard in Northern Italy
Agricultural land abandonment is an emerging problem in European Union (EU), and about 11% of agricultural EU land is at high risk of abandonment in the coming 10 years. Land abandonment may have both positive and negative effects in ecosystems.
Luigi Sciubba +6 more
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Modeling the potential natural vegetation of Minnesota, USA
Abstract Assessing the effects of human land use and management decisions requires an understanding of how temporal changes in biodiversity influence the rate of ecosystem functions and subsequent delivery of ecosystem services. In highly modified anthromes, the spatial distribution of natural vegetation types is often unknown or coarsely represented
Seth R. Fore, Michael J. Hill
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The concept of potential natural vegetation: an epitaph?
We discuss the usefulness of the concept of Potential Natural Vegetation (PNV), which describes the expected state of mature vegetation in the absence of human intervention. We argue that it is impossible to model PNV because of (i) the methodological problems associated to its definition and (ii) the issues related to the ecosystems dynamics.We ...
Alessandro Chiarucci +4 more
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Evaluating the post-fire natural regeneration of Mediterranean-type scrublands in Central Spain
We performed a five-year assessment of the natural vegetation restoration capacity following the 2012 fires in Valdemaqueda (Madrid, Spain) via the characterization of the post-fire and residual vegetation and the analysis of soil physico-chemical ...
Rosina Magaña Ugarte +2 more
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Human disturbance is the major driver of vegetation changes in the Caatinga dry forest region
Drastic changes in vegetation structure caused by exceeding ecological thresholds have fueled the interest in tropical forest responses to climate and land-use changes.
Helder F. P. Araujo +3 more
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