نتایج جستجو برای: upland areas
تعداد نتایج: 405837 فیلتر نتایج به سال:
The paper presents an example of the application of the landscape functions and natural potentials methodology to the environmental assessment in the upland area of Pradnik and Dlubnia rivers catchments, south Poland. The aim of the research was to propose evaluation methodology applied in GIS environment and based on available digital (or easy for digitalization) spatial data. The study proved...
This paper investigates the socio-ecological differences and interactions between upland and lowland areas in Shaxi Valley, Yunnan Province, Southwest China. As an analytical tool we used an extended Human–Environment System Framework by focusing particularly on the dynamics and sustainability of livelihood strategies and mountain–valley interactions. Drawing from household surveys conducted in...
Directional climate change and potential reversal of desertification in arid and semiarid ecosystems
Our objective was to determine if long-term increases in precipitation can maintain grasslands susceptible to desertification, and initiate a reversal of historic regime shifts on desertified shrublands. Perennial grass production and species richness in a multi-year wet period were hypothesized to be greater than expected based on precipitation in a sequence of dry years. These responses were ...
Declines of young forest and associated populations of wildlife are major conservation concerns in the Northeast, USA. Active forest management is required to conserve declining populations of young forest wildlife and investigating habitat selection by target species can help inform management decision-making. The American woodcock (Scolopax minor) is a key indicator species of young forest wh...
The existence of monodominant forests on well-drained soils in tropical regions has been widely reported. Such forests most likely result from a combination of both ecological and evolutionary factors. Under conditions of high seed and seedling mortality, vegetative reproduction could create a reproductive advantage leading to forest dominance, and profoundly affect the distribution of genetic ...
The current study investigates a MODIS-based remote-sensing-based algorithm for the assessment of daily latent heat flux (LE), or evapotranspiration (ET), with a focus on semiarid regions. The approach uses the triangle method, relying on remotely sensed inputs and a previously developed net radiation model. A major difference from previous studies is that we utilize only MODIS products for est...
EWE, S.M.L., and STERNBERG, L.S.L., 2006. Water uptake patterns of an invasive exotic plant in coastal saline habitats. Journal of Coastal Research, 22(0), 000–000. West Palm Beach (Florida), ISSN 0749-0208. Schinus terebinthifolius Raddi (Schinus) is one of the most widely found woody exotic species in South Florida. This exotic is distributed across environments with different hydrologic regi...
Verticillium wilt (VW) caused by Verticillium dahlia Kleb is one of the most destructive diseases of cotton. Numerous efforts have been made to improve the resistance of upland cotton against VW, with little progress achieved due to the paucity of upland cotton breeding germplasms with high level of resistance to VW. Gossypium barbadense was regarded as more resistant compared to upland cotton;...
Under the National Poverty Eradication Programme (NPEP) overall visions for agriculture, integrated watershed management and forestry seek to coordinate sectors in facilitating a holistic transformation of upland livelihoods to reduce rural poverty and conserve natural resources. Operational policies, however, still centre on stabilising shifting cultivation, eliminating opium production, land ...
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