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There has been an increasing use of predictive spatial distribution of main communities or dominant species at the landscape scale for ecological restoration planning, biodiversity conservation planning and regional management decisions in the Qilian Mountains, northwest China. Understanding the spatial distribution of dominant species at the regional scale(More)
Seven models commonly used to estimate the daily reference evapotranspiration (ET 0) were evaluated in the middle Heihe River Basin of the arid northwestern part of China. The objectives of the study are to choose the appropriate model for estimating the areal distribution of ET 0 and to explain the spatial–temporal distribution of the same through GIS in(More)
In recent years, there is a growing tendency to use socalled uncertainly mathematical model, fuzzy set theory, a type of nonlinear and primarily data-driven approach and, an artificial neural network (ANN) to complement traditional water quality evaluation. Since the proper identification of water quality conditions in river system based on limited(More)
This paper focuses on the analysis of fly-ash aerated concrete particles applied into BAF. The comparative analysis of the removal rates of COD and NH<sub>3</sub>-N during the period of start-up period demonstrates the superiority of organic removing bacteria in biological film on the packing materials surface in the initial stage of start-up. Under the(More)
Dongdagou stream accepted treated or untreated domestic wastewater and industrial sewage of baiyin city, which is an important base producing non-ferrous metals in China. Speciation and risk assessment of heavy metals in surface sediments of Dongdagou stream have been investigated based on sediment samples collected from eight locations. Average metal(More)