文献类型：期刊文献

英文题名：Effect of farmland shelterbelts on gully erosion in the black soil region of Northeast China

作者：Deng, Rongxin[1];Wang, Wenjuan[2];Fang, Haiyan[3];Yao, Zhihong[1]

第一作者：Deng, Rongxin

通讯作者：Fang, HY[1]

机构：[1]North China Univ Water Resources & Elect Power, Inst Resources & Environm, Zhengzhou 450045, Peoples R China;[2]Henan Univ Econ & Law, Dept Resources & Environm Sci, Zhengzhou 450002, Peoples R China;[3]Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China

第一机构：North China Univ Water Resources & Elect Power, Inst Resources & Environm, Zhengzhou 450045, Peoples R China

通讯机构：[1]corresponding author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China.

年份：2015

卷号：26

期号：4

起止页码：941-948

外文期刊名：JOURNAL OF FORESTRY RESEARCH

收录：;Scopus(收录号：2-s2.0-84945442738);WOS:【SCI-EXPANDED(收录号:WOS:000363255100016)】；

基金：This research was supported by the National Natural Science Foundation of China (31400612, 41271305); the Key Technologies Research and Development Program of Henan Province (142102110147).

语种：英文

外文关键词：Black soil region; Gully density; Gully erosion; Farmland shelterbelts; Northeast China

摘要：The black soil region of northeast China is one of the most important grain-producing areas in China. Increasingly severe gully erosion in this region has destroyed much farmland and reduced grain production. We analyzed SPOT5 imagery from 2007 and TM imagery from 2008 to describe the distributions of gullies and farmland shelterbelts in Kedong County and to assess the effect of farmland shelterbelts on gully erosion. The imagery revealed 2311 gullies with average density of 418.51 m km(-2), indicating very serious gully erosion. With increasing slope gradient there was an inverse trend between gully density and shelterbelt density, indicating that farmland shelterbelts can prevent gully erosion. The defense effect of farmland shelterbelts against gully erosion varied with distance: for distances < 120 m, the defense effect was consistent and very strong; for distances of 120-240 m, a weak linear decrease was found in the defense effect; and for distances > 240 m, the defense effect of the shelterbelts was significantly weaker. We recommend an optimal planting density of farmland shelterbelts for the prevention of gully erosion at 1100-1300 m km(-2).