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Regional difference of cropping-animal husbandry system and its developmental trends at intensive farming region in the Changjiang River Delta Research on the valuation of wetland ecosystem services Research on regional differences of cemetery development Regional differences in soil nutrient content along the forest edge in the northern slope of Tianshan Mountains Distribution characteristics of soil heavy metal content in northern slope of Tianshan Mountains and its source explanation Change characteristics and regional differences in organic matter and total nitrogen contents in topsoil under restored vegetation Regional differences and reasons for farmers‘ irrigation as households perspective: A case study of Sangong River Basin Research on Universal Height Diameter Curves Analysis of relative carrying capacity of resources in Tarim River Basin in Xinjiang Effects of Plant Density on Agronomic Characters and Yield in Spring Maize Zhongdan 909 and Their Regional Differences in Northeast China Advances in Hydrological Sciences under Global Change: characteristics and perspectives