The soil cultivation system is an essential link of the farm crops system, which has close relation with crops planter system.

土壤耕作制度是农作制度中不可缺少的一环，其是与一个地区的作物种植制度紧密相关的。

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Soil erosion is greatly affected by artificial interference and farming intensity. The amount of soil erosion in hillside field system increases 20 times from natural protection to crop cultivation.

土壤流失量受人为干预、耕作强度的影响很大，坡地从自然保护到作物栽培，系统的土壤流失量提高20倍。

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The flat land and sparse population and relative lean soil cause forest management to depend on mechanization and intensive cultivation and old-aged harvest system.

土地平整、人口稀少、土壤肥力较低，是该林业公司机械化作业、集约化经营、主伐年龄较大的缘由。

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