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Ecological flow regime (EFR) evaluation is essential in river ecosystem protection. To evaluate and maintain EFR under a changing environment reasonably, an integrated method based on both the monthly 7Q10 method and biological analysis method was put forward for its simple modelling and small data requirement, and then reasonable EFR was obtained after a reasonable check by the Tennant method. Meanwhile,...
The measured values of river health indexes that are not necessarily in the same range of a certain health grade level cause the problem of how to classify the actual status of river health. To solve such incompatibility and evaluate the health condition of a river ecosystem objectively we can use the river health integrated index (RHI), which was determined by the fuzzy matter-element extension assessment...
Inadequate fertilization may result in water pollution and nutrient leaching, especially in paddy fi elds. It is expected that the combination of organic and inorganic fertilizers reduces water pollution in addition to crop yield improvement. In this study, combined fertilization with organic and inorganic fertilizers was tested under controlled irrigation conditions. With the addition of organic...
Wetlands, sea, and forest are the three most important ecosystems on our planet. Considering the rapid degradation rate of wetlands, health evaluation of wetlands has become one of the hot points in the research field of wetlands. In this research, health and the pressure-state-response model of ecosystem was used as the tool, data was collected with remote sensing technology, field investigation...
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