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Soil Erosion Changes over the Past Five Decades in the Red Soil Region of Southern China

查看全文 作  者:LIANG [1,3]Yin;LI [1]Decheng;LU [2]Xixi;YANG [1]Xuan;PAN [1]Xianzhang;MU [1]Huan;SHI [1]Deming;ZHANG [1]Bin 高影响力作者 机构地区:[1]Institute oj: Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;[2]Department of Geography, National University of Singapore, Singapore 119260;[3]Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences. Nanjing 210008, China高影响力机构 出  处:《Journal of Mountain Science》索引2010年第7卷第1期,共8页高影响力期刊 基  金:funded by the '973' Program of China (2007CB407206);the ISSCAS Innovation Program (ISSASIP0602);the Knowledge Innovation Project of the Chinese Academy of Sciences (KZCX2-YW-438) 摘  要:This paper reports the dynamic changes of soil and water loss in the red soil region of Southern China since the 1950s. The red soil region covers eight provinces: Jiangxi, Zhejiang, Fujian, Anhui, Hubei, Hunan, Guangdong and Hainan. From the 1950s to 1986, the annual rate of soil erosion increased by 3.4%. From 1986 to 1996 and from 1996 to 2000, the annual rates of soil erosion decreased by 2.0% and 0.32%, respectively. Field surveys showed that from 2000 to 2005, the area of soil and water loss decreased annually by 1.2%. This decrease was a result of large-scale erosion control activities across China. Although the eroded soil has been restored, the restoration process is very slow and full restoration will take a long time. Our report suggests that controlling soil and water loss is a challenging task, and additional measures must be taken to effectively control the soil erosion in the red soil region. 关 键 词:土壤侵蚀率 中国南方 红壤区 水土流失控制 蚀变 红壤地区 动态变化 恢复过程
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