据《世界环境》陶思明文载: 1、充分利用空间资源和土地资源的农林立体结构生态经济系统,包括各种农作物的轮作、间作与套种,农林间作,林药间作等; 2、物质能量多层分级利用生态经济系统,包括农作物秸杆的多级利用,禽、畜粪便的多级利用,沼气、沼渣、沼液的分别利用等; 3、水陆交换的物质循环生态经济系统,包括桑基鱼塘、农——牧——渔循环利用等; 4、相互促进的生物物种共生 According to “World Environment” Tao Siming contains: 1, take full advantage of space resources and land resources, three-dimensional structure of agro-forestry eco-economic system, including a variety of crop rotation, intercropping and interplanting, intercropping of forest and intercropping; 2, Multi-level utilization of ecological economic system, including the multi-level utilization of crop straw, multi-level utilization of poultry and livestock excrement, utilization of biogas, biogas residue and biogas slurry respectively; 3. Material circulation ecological and economic system for water and land exchange including Mulberry fish ponds, agriculture - animal husbandry - fishery recycling, etc .; 4, mutual promotion of biological species symbiosis