我国北方农牧交错带西段退耕对土壤保持功能影响研究
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殷小菡, 孙希华, 徐新良, 张雪艳, 陈德超
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The Impact of Returning Farmland on Soil Conservation Function in the Western Region of Farming-pastoral Ecotone of Northern China
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YIN Xiaohan,SUN Xihua,XU Xinliang,ZHANG Xueyan,CHEN Dechao
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表2 2000-2015年北方农牧交错带西段耕地变化面积及占比 |
Tab. 2 The changeable area and its proportion of farmland in western section of the farming-pastoral ecotone of Northern China from 2000 to 2015 |
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类型转换 | 2000-2005年 | | 2005-2010年 | | 2010-2015年 | | 2000-2015年 | 面积/km2 | 占耕地比例/% | 面积/km2 | 占耕地比例/% | 面积/km2 | 占耕地比例/% | 面积/km2 | 占耕地比例/% | 耕地?林地 | -451.83 | -0.98 | | -269.45 | -0.60 | | -22.21 | -0.05 | | -743.50 | -1.61 | 耕地?草地 | -444.75 | -0.96 | | -34.64 | -0.08 | | 109.25 | 0.24 | | -370.13 | -0.80 | 耕地?水域 | 23.17 | 0.05 | | -1.77 | 0.00 | | -34.51 | -0.08 | | -13.11 | -0.03 | 耕地?建设用地 | -166.82 | -0.36 | | -49.08 | -0.11 | | -379.78 | -0.85 | | -595.68 | -1.29 | 耕地?未利用地 | -30.08 | -0.07 | | 14.34 | 0.03 | | 74.33 | 0.17 | | 58.59 | 0.13 | 耕地增减合计 | -1070.31 | -2.31 | | -340.60 | -0.75 | | -252.91 | -0.56 | | -1663.83 | -3.60 |
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