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中文摘要: 文章分析了我国耕地资源的现状，指出我国耕地面积不断缩小，而污染面积不断扩大，有2/3的耕地仍属中低产田；认为今后我国耕地高强度利用的特点不会改变；阐述了各区域土壤退化的主要机制；介绍了耕地资源保护和地力提升所要解决的科学 问题，并提出了相应的对策建议 。
中文关键词: 耕地保护，地力提升，土壤质量，土壤污染，对策
Abstract:The status analysis of arable land resources indicated that the cultivated land area in China gradually reduced and polluted area increased last years, and the productivity of two third of the arable land is below the middle level. The intensive use of the arable land in the future will still be inevitable to guarantee the grain safety. Main soil degradation mechanism in different regions is demonstrated. The scientific problems and strategies in protection of arable land resources and increase of soil productivity are recommended.
keywords: protection of arable land, increase of soil productivity, soil quality, soil pollution, strategies
文章编号： 中图分类号： 文献标志码：
基金项目:
| 作者 | 单位 | |
| 周健民 | 中国科学院南京土壤研究所 南京 210008 | jmzhou@njbas.ac.cn |
| Author Name | Affiliation | |
| Zhou Jianmin | Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China | jmzhou@njbas.ac.cn |
引用文本：
周健民.我国耕地资源保护与地力提升[J].中国科学院院刊,2013,(2):269-274.
Zhou Jianmin.Protection of Arable Land Resources and Increase of Soil Productivity in China[J].Bulletin of Chinese Academy of Sciences,2013,(2):269-274.
周健民.我国耕地资源保护与地力提升[J].中国科学院院刊,2013,(2):269-274.
Zhou Jianmin.Protection of Arable Land Resources and Increase of Soil Productivity in China[J].Bulletin of Chinese Academy of Sciences,2013,(2):269-274.
