نتایج جستجو برای: lakes and reservoirs
تعداد نتایج: 16833639 فیلتر نتایج به سال:
Abstract. Data and knowledge of surface water bodies (SWB), including large lakes reservoirs (surface areas > 1 km2), are critical for the management sustainability resources. However, existing global or national dam datasets have georeferenced coordinate offsets many reservoirs, some not reported separately. In this study, we generated China's bodies, Large Dams, Reservoirs, Lakes (China-LD...
drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...
The earth has vast amounts of surface and sub-surface freshwater in the form lakes, reservoirs, rivers, wetlands, soil water, groundwater, as well water stored snowpacks, glaciers, permafrost [...]
Animal and human wastes contain fecal bacteria, including pathogens that can contaminate groundwater, streams, lakes, and reservoirs through runoff and infiltration. Bacterial nonpoint sources of pollution continually impair water quality (Hartel et al., 2002). These pollution sources may come from failed septic systems, large animal operations, land application of wastes, sewage treatment faci...
The Lake Habitat Survey (LHS) method has only been applied once in a tropical African reservoir and could potentially be a useful tool for hydromorphological impact assessments. This study (October 2012) tested the application of the LHS method to two Zimbabwean reservoirs, Cleveland and Chivero, which are impacted differently by human activities within their catchments with varying levels of p...
Understanding the factors that affect water quality and the ecological services provided by freshwater ecosystems is an urgent global environmental issue. Predicting how water quality will respond to global changes not only requires water quality data, but also information about the ecological context of individual water bodies across broad spatial extents. Because lake water quality is usually...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید