نتایج جستجو برای: tropical evergreen forest
تعداد نتایج: 167876 فیلتر نتایج به سال:
Resprouting is an important persistence strategy for woody species and represents a dominant pathway of regeneration in many plant communities, with potentially large consequences for vegetation dynamics, community composition, and species coexistence. Most of our knowledge of resprouting strategies comes from fire-prone systems, but this cannot be readily applied to other systems where disturb...
Expansion of Eucalyptus plantation is considered to be one of the major human disturbances to tropical forests, where termites are superabundant and an important decomposer. Here we studied the biomass of dead wood and the abundance and species composition of termites in dead wood in Eucalyptus plantation forest (EF) in Thailand and compared the data with those of the neighboring dry evergreen ...
Dr. Engineers, ICONA (Instituto National para la Conservacion de la Naturaleza), Madrid, Spain. Abstract: Management of the fragile and greatly modified ecosystems in the Spanish Mediterranean climate is complex. Rainfall occurs in a few intensive storms on rough topography. Climax vegetation is sparse forest dominated by evergreen xerophilic species. The emphases of the National Institute for ...
The use of statistical tools to assess species richness in different biological groups has increased considerably in the recent years. In this context, during the wet and dry seasons of 2007 and 2008 (dry only), we evaluated the amphibian species richness (alpha and beta diversity) in four vegetation types: cloud forest (CF), pine-oak forest (POF), xeric scrub (XS), and tropical evergreen fores...
Tree mortality due to warming and drought is a critical aspect of forest ecosystem in responding to climate change. Spatial patterns of tree mortality induced by drought and its influencing factors, however, have yet to be documented at the global scale. We collected observations from 248 sites globally where trees have died due to drought and then assessed the effects of climatic and forest fa...
A number of studies have elucidated the distributional patterns of various components of Southern Appalachian forests. The evergreen understory here is composed largely of a dominant ericaceous shiub, Rhododendron maximum L., which is believed to be expanding and inhibiting the development of other species with consequent impacts on overall forest structure and composition. We use a GIS and log...
The response of vegetation distribution, carbon, and fire to three scenarios of future climate change was simulated for California using the MC1 Dynamic General Vegetation Model. Under all three scenarios, Alpine/Subalpine Forest cover declined, and increases in the productivity of evergreen hardwoods led to the displacement of Evergreen Conifer Forest by Mixed Evergreen Forest. Grassland expan...
Tropical countries like Cambodia require information about forest biomass for successful implementation of climate change mitigation mechanism related to Reducing Emissions from Deforestation and forest Degradation (REDD+). This study investigated the potential of Phased Array-type L-band Synthetic Aperture Radar Fine Beam Dual (PALSAR FBD) 50 m mosaic data to estimate Above Ground Biomass (AGB...
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