نتایج جستجو برای: hydrological and ecological needs
تعداد نتایج: 16856274 فیلتر نتایج به سال:
Floodplain wetlands are valuable ecosystems for maintaining biodiversity, but are vulnerable to hydrological modification and climatic extremes. The floodplain wetlands in the middle Yangtze region are biodiversity hotspots, particularly important for wintering migratory waterbirds. In recent years, extremely low winter water level events frequently occurred in the middle Yangtze River. The hyd...
Soil moisture is an important variable in climatic, hydrological, and ecological systems that link atmospheric processes to the earth's surface. The rainfall systems of the water year 2017-2018 abnormally caused more than normal rainfall in Fars province and caused major changes in the surface moisture of the soil. The purpose of this research is to analyze the spatial changes of soil moisture ...
today the image of a permanent skeletal space of cities affected by some forces or mechanisms is put in time with social-economic development and while imposes a new face and perspective to physical anatomy of cities, and prepares field to changes in content and social- economic structures of cities too. simultaneously with quitting villages in order to settle in cities by villagers, the phen...
The Pantanal biome is characterised by seasonal flooding which determines specific ecosystem processes, with the occurrence of adapted plants and animals to the annual shrinking and expansion of habitats due to the seasonal hydrological regime. Biodiversity abundance varies during the dry and wet seasons. The Pantanal's biodiversity is a fundamental component of ecosystem services for human soc...
the distinguishing characteristic in the third millennium is planning based on principles of sustainable development in line with nature and all activities related to urban issues. ecological concepts and consequently ecological park refers to a comprehensive and integrated set of measures which create coordination, balance between the constituent elements of the park in order to establish sust...
Management of Greater Everglades Ecosystems: The Joint Ecosystem Modeling Laboratory Laura Brandt, USFWS [email protected] Integrating Ecological and Hydrological Models for Adaptive Management of Greater Everglades Ecosystems: The Joint Ecosystem Modeling Laboratory Best, G.R., US Geological Survey Brandt, L.A., US Fish and Wildlife Service Mazzotti, F.J., University of Florida Adaptive man...
An artificial neural network (ANN) was used to evaluate the hydrological responses of two streams in the northeastern U.S. having different hydroclimatologies (rainfall and snow+rain) to hypothetical changes in precipitation and thermal regimes associated with climate change. For each stream, historic precipitation and temperature data were used as input to an ANN, which generated a synthetic d...
In many floods controlling, watershed-management and water-resources projects, estimating of river flow-rate is important and needs a comprehensive hydrological modeling of flow-rate evaluation. Need for enlightening the status of water-resources and precipitation in different watersheds and the lack of networks of hydro-meteorological gauging stations, reveal the importance of estimating ...
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