自然农耕
自然农耕-
洪湖流域自然农耕条件下营养盐沉积输移演化模拟研究
Historical Simulations of Nutrient Sedimentary and Transport Changes in Honghu Lake Basin
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自然农耕经济的社会烧荒陆耕，烧山毁林。
A society of natural farming economy employed slash-and-bum cultivation ， burning mountains and destroying forest .
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不同植被类型变化幅度为自然荒坡地＞农耕地＞松林地。
Different vegetation types change the range are that the natural hillside fields is the greatest , and pine forest land smallest .