نتایج جستجو برای: surface water quality

تعداد نتایج: 1798552  

Not only have recent global challenges including drought, climate change, land degradation and land use change impacted the quantity of available surface water and groundwater, but also water quality has been affected as well. To study this impact, Landsat 5 satellite images and water quality data were obtained to compare the effects of land use changes on surface water quality between July of ...

Journal: :Civil Engineering Journal 2023

The study aimed to assess the relationship between surface water quality and diversity of planktonic communities in An Giang province, Vietnam. national technical regulations on quality, index (WQI), Shannon-Wiener (H') were applied evaluate quality. considerable influence parameters dominant plankton was determined by canonical correspondence analysis (CCA) similarity percentage (SIMPER). resu...

Groundwater resources are important part of the sweet water available to humans. The present study studies and evaluates the quality of water resources of karstic basin of Roein Esfarayen. For this purpose, sampling of water from water sources was carried out and groundwater quality of the area was evaluated in terms of drinking, agriculture and industry using Schoeller, Wilcox and Langelier di...

2013
Qinggai Wang Shibei Li Peng Jia Changjun Qi Feng Ding

Surface water quality models can be useful tools to simulate and predict the levels, distributions, and risks of chemical pollutants in a given water body. The modeling results from these models under different pollution scenarios are very important components of environmental impact assessment and can provide a basis and technique support for environmental management agencies to make right dec...

2006
Jay Gan Cheryl Wilen Dennis Pittenger

In the United States, home lawns occupy 20-25 million acres. Many residential landscapes also include non-turf systems such as ground covers, shrubs, trees, and mulches. In California alone it was last estimated that environmental horticulture occupied 1.4 million acres. Given the recent boom in new developments, the acreage of residential landscapes as of today may be substantially larger. Res...

1985
U. Suhr

Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Monitoring of surface waters is primarily done to detect the status and trends in water quality and to identify whether observed trends arise form natural or anthropogenic causes. Empirical quality of surface water quality data is rarely c...

2006
M Rode U Suhr

Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Monitoring of surface waters is primarily done to detect the status and trends in water quality and to identify whether observed trends arise form natural or anthropogenic causes. Empirical quality of surface water quality data is rarely c...

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