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本文研究了江西红壤地区以种植业为主种养结合的农户生态系统的物质循环情况。
This paper deals with the issue of material cycling in the farm household ecosystem in Jiangxi Province.
由于间种山毛豆增加了生态系统的养分收入，减少了水土流失的养分支出，系统的各种养分出现了盈余的状况。
Due to the increase in nutrient input of the ecosystem and the decrease in the nutrient output from soil and water loss, the nutrients in the system are surplus.
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