EN中文

SCIENTIA GEOGRAPHICA SINICA >

2009 , Vol. 29 >Issue 1: 105 - 110

DOI: https://doi.org/10.13249/j.cnki.sgs.2009.01.105

论文

Spatial Distribution of Soil Erosion Intensityin Zhifanggou Small Watershed Based on GIS

Expand
  • 1. College of Tourism and Environmental Science, Shaanxi Normal University, Xi’an, Shaanxi 710062;
    2. The State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Northwest A & F University, Yangling, Shaanxi 712100;
    3. Armed-Police Forces of Engineering Collage, Xi’an, Shaanxi 710086

Received date: 2008-05-06

  Revised date: 2008-09-11

  Online published: 2009-01-20

Fold

Abstract

Based on calculating factor parameters of soil erosion predication model, spatial distribution map of factor parameters at Zhifangguo Watershed was drawn.By using Geographic Information System (GIS) technology, spatial distribution characteristics were also gotten.In addition, the distribution map of soil erosion intensity in Zhifangguo Watershed was gained too.The results indicated that soil erosion intensity in the upstream of the catchment was more severe than that in the lower stream; severe and extreme severe soil erosion occurred at the upstream.In the middle-stream, slight and moderate erosion intensity happened; soil erosion intensity in the left side of the catchemnt was more than that in the right side.Extreme severe soil erosion area was located at Guaigou, Kuqiaogou, Dafanjiagou, Zhenggou and Daluoguogou, where soil erosion intensity reached to 23000-33000 t/(km2·a).Ephemeral gully erosion was a major factor causing occurrence of extreme severe soil erosion on hillslopes.Soil erosion intensity distribution was dominated by vegetation coverage and slope gradient.

Cite this article

LI Bin-bing, ZHENG Fen-li, LONG Dong-cai, JIANG Zhong-shan . Spatial Distribution of Soil Erosion Intensityin Zhifanggou Small Watershed Based on GIS[J]. SCIENTIA GEOGRAPHICA SINICA, 2009 , 29(1) : 105 -110 . DOI: 10.13249/j.cnki.sgs.2009.01.105

References

[1] Wischmeier W H,Smith D D.Predicting Rainfall Erosion losses.A Guide to Conservation Planning with the Universal Soil Loss Equation[M].Agriculture Handbook No.537,United States Department of Agriculture,Springfield,USA,1978.
[2] 郑粉莉,高学田.黄土坡面土壤侵蚀过程与模拟[M].西安:陕西人民出版社,2000:96~119.
[3] 郑粉莉,高学田.坡面土壤侵蚀过程研究进展[J].地理科学,2003,23(2):230~234.
[4] 郑粉莉,武 敏,张玉斌.黄土陡坡裸露坡耕地浅沟发育过程研究[J].地理科学,2006,26(4):438~441.
[5] 江忠善,郑粉莉,武 敏.中国坡面水蚀预报模型[M].北京:科学出版社,2008:200~202.
[6] 王万忠.黄土地区降水特征与土壤流失关系研究(Ⅰ)[J].水利保持通报,1983,(4):58~63.
[7] 王万忠.黄土地区降水特征与土壤流失关系研究(Ⅱ)[J].水利保持通报,1984,(2):62~64.
[8] 孔亚平,张科利,杨红丽.土壤可蚀性模拟研究中的坡长选定问题[J].地理科学,2005,25(3):374~377.
[9] 张 岩,刘宝元,史培军,等.黄土高原土壤侵蚀作物覆盖因子计算[J].生态学报,2001,21(7):1050~1056.
[10] 彭文英,张科利,江忠善.黄土高原坡耕地退耕还草的水沙变化特征[J].地理科学,2002,22(4):397~402.
[11] 李忠武,蔡强国,曾光明.黄土丘陵沟壑区土地利用类型与土地生产力关系模拟研究——以王家沟小流域为例[J].地理科学,2007,27(1):53~57.
[12] 程琴娟,蔡强国,郑明国黄土土壤结皮对产流临界雨强的影响分析[J].地理科学,2007,27(5):.678~672.
[13] 卜 坤,张树文,闫业超,等.三江平原不同流域水土流失变化特征分析[J].地理科学,2008,28(3):361~368.
[14] 王 宁,杨春雨,张 刚,等.黑土区土壤侵蚀的REE示踪法研究[J].地理科学,2008,28(4):565~570.
Options
Outlines

/

〈 〉