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na shi me zheng jiu ni wo de tu di
Author(s): 
Pages: 131
Year: Issue:  19
Journal: Farm Machinery

Keyword:  退化面积耕地土壤东北黑土地土壤地力种植业司市场博弈你我耕地总面积土壤酸化土地污染;
Abstract: <正>最好的方法,恐怕还是让使用权所有者和经营者通过市场博弈去调节农业部种植业司副司长何才文近日表示,目前我国耕地土壤长期处于"亚健康"状况。何才文介绍,目前存在退化面积大、污染面积大、有机质含量低、土壤地力低等"两大两低"问题。我国耕地退化面积占耕地总面积比重达40%以上,具体表现为东北黑土地变薄、南方土壤酸化、北方土壤
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