Using Wangdonggou watershed which is a typical area in t he gully region of Loess Plateau as a research base, this paper analyzes the way s to improve ecosystem productivity and their effect on ecoenvironment, est ablishes highly effective, safe, and sustainable agricultural ecosystem, and forms the biological system with ecosafety an d food safety. It may improve the harmonious development of people, resources, a nd environment in the gully region of Loess Plateau, and provide the model of agricult...
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