Comparative Study for Regional Terrain Factors in Coarse Sand Source Area of Loess Plateau

GAO Yun-fei; LI Zhi-guang; YANG Sheng-tian; CAO Wei

您当前的位置：

首页 >

文章列表页 >

Comparative Study for Regional Terrain Factors in Coarse Sand Source Area of Loess Plateau

- Comparative Study for Regional Terrain Factors in Coarse Sand Source Area of Loess Plateau
- Bulletin of Soiland Water Conservation Vol. 31, Issue 1, Pages: 111-114(2012)
- 作者机构：
  
  1. 北京师范大学地理学与遥感科学学院,北京,100875
  2. 水利部水土保持监测中心,北京,100055
  3. 黄河水土保持生态环境监测中心,陕西,西安,710021
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
移动端阅览
GAO Yun-fei, LI Zhi-guang, YANG Sheng-tian, et al. Comparative Study for Regional Terrain Factors in Coarse Sand Source Area of Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2012, 31(1): 111-114.
DOI：

GAO Yun-fei, LI Zhi-guang, YANG Sheng-tian, et al. Comparative Study for Regional Terrain Factors in Coarse Sand Source Area of Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2012, 31(1): 111-114. DOI：

摘要

在黄河粗泥沙集中来源区的清水川流域

以1∶10 000比例尺地形图上的小流域为基本单元

在1∶250 000比例尺DEM上提取地表起伏度、高程变异系数和等高线密度等区域土壤侵蚀地形因子

以1∶10 000比例尺计算的地形因子为真值

拟合各区域土壤侵蚀地形因子的计算方法。结果表明

等高线密度是合适的区域土壤侵蚀地形因子计算指标。应用该方法在皇甫川下游进行检验

模拟结果误差小于10%

效果良好

可作为土壤侵蚀区域地形因子计算时指标选择的参考。

Abstract

By taking small watershed on the 1∶10 000 scaled topographic map of Qingshuichuan basin in the coarse sand source area of the Loess Plateau as a basic cell

terrain factors for regional soil erosion

including surface relief

variance coefficient

and contour line density

are extracted from 1∶250 000 scaled digital elevation model.The terrain factors calculated from the 1∶10 000 scaled map are regarded as truth values to fit the calculation method of terrain factors for soil erosion in each region.Results showed that only the contour line density is an appropriate index of terrain factors for regional soil erosion.The method has been applied in the lower reaches of Huangpuchuan River

with the deviation less than 10%.Such a good simulation result indicates that the method can be used as a reference to index determination in the calculation of regional terrain factor for soil erosion.

关键词

Keywords

references

Views

1323

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

The Amount of Soil Erosion in Baoxiang Watershed of Dianchi Lake Based on GIS and USLE

Temporal and Spatial Characteristics of Rainfall Erosivity with Different Geomorphology Types on the Loess Plateau

Changes of Soil Erosion Sensitivity by Returning Farmland to Forest Project in Mudanjiang City

Spatiotemporal Pattern and Dynamic Changes of Soil Erosion in Harbin Region of Songhuajiang Watershed

Characteristics of Spatial Landuse Variation in Danjiang River Basin of Shaanxi Province

Related Author

LI Jing

WANG Zhi-yun

LIU Zhong-han

HE Bin

ZHANG Yan

YUAN Guo-lin

ZHAO Lei

LI Jing

Related Institution

Northwest Agriculture and Forestry University, Yangling

Yun’nan Normal University,,Yun’nan

Yun’nan Academy of Environment Science,,Yun’nan

Insitute of Information Engineering

Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling

⁰