文献类型：期刊文献

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

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

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

第一作者：Rongxin Deng

机构：[1]Institute of Resources and Environment,North China University of Water Resources and Electric Power;[2]Department of Resources and Environmental Sciences,Henan University of Economics and Law;[3]Key Laboratory of Water Cycle and Related Land Surface Processes,Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences

第一机构：Institute of Resources and Environment,North China University of Water Resources and Electric Power

年份：2015

卷号：26

期号：4

起止页码：941-948

中文期刊名：林业研究：英文版

收录：CSTPCD;;Scopus;CSCD:【CSCD2015_2016】；

基金：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

中文关键词：农田防护林;东北黑土区;侵蚀破坏;粮食生产区;沟蚀;平均密度;沟壑密度;防御作用

外文关键词：Black soil region ; Gully density ;Gullyerosion ; 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 gullyerosion 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 at1100–1300 m km-2.
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 ima- gery 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 gullyerosion 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 shel- terbelts for the prevention of gully erosion at 1100-1300 m km-2.