The regionalized ecological, economic and social benefit of China's sloping cropland erosion control during the 12th five-year plan (2011–2015)
The regionalized ecological, economic and social benefit of China's sloping cropland erosion control during the 12th five-year plan (2011–2015)
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“十二五”（2011—2015年）中国坡耕地侵蚀治理区域生态、经济和社会效益
DOI：
10.1016/j.jenvman.2020.111314
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发表时间：
2020
影响因子：
8.7
通讯作者：
Jierui Li
中科院分区：
文献类型：
--
作者：
Baofeng Di;Zhaotian Yang;Lei Liu;Yunfen Yang;Jierui Li
采用Kriging插值法、层次分析法和灰色关联分析法，对2011-2015年中国坡耕地侵蚀治理的区划效益进行了评价，包括生态效益、经济效益、社会效益和综合效益。结果表明，在生态效益上，水土流失控制程度的分布呈现斑块状特征。径流模数减少量由东南向西北逐渐减小。土壤侵蚀模数减少幅度在黄土高原西北部最大，在东北黑土区最小。在经济效益上，单位土地面积年产值的增长呈现“南高北低”的特征，但黄土高原中部和北部土-落基山区存在斑块状的高值区。西部地区农业人口人均收入增幅高于东部地区。在社会效益上，北方大部分地区人均粮食增加量大于南方，南方特色农业发展优势大于北方。综合效益呈现“南高北低”的格局；西南最高，东北最低”。这种空间异质性意味着有必要明确不同地区生态环境效益的影响因素，并采取有针对性的措施来提高生态环境效益。
With Kriging interpolation, analytic hierarchy process and grey relational analysis, this paper evaluates the regionalized benefit of China's sloping cropland erosion control (SCEC) during 2011–2015, including the ecological, economic, social benefit and the comprehensive benefit. The results show that, in the ecological benefits, the distribution of soil erosion control degree presents patchy characteristics. The reduction of runoff modulus gradually decreases from southeast to northwest. The reduction of soil erosion modulus is the largest in the Northwest Loess Plateau and the smallest in the Northeast Black Soil Zone. In the economic benefits, the increase in the annual output value per unit land area is characterized by “high in the south and low in the north”, but there are patchy high-value areas in central Loess Plateau and the Northern Earthy-Rocky Mountain Zone. The increase in the agricultural population's per capita income is higher in the western area than that in the eastern area. In the social benefits, the per capita grain increase in most of the northern China is larger than that in the south, while the characteristic agricultural development in the south is more advantageous than that in the north. The comprehensive benefit is “high in the south and low in the north; highest in the southwest and lowest in the northeast”. The spatial heterogeneity implies the necessity to specify the influencing factors for the SCEC benefit in different areas and take pointed measures to improve the benefit.