Slope position extraction method based on DEM and slope features

LIU Peng-ju; XIA Zhi-wu; TANG Xiao-ming

doi:10.13332/j.1000-1522.20150140

Journal of Beijing Forestry University > 2016 > 38(2): 68-73. > DOI: 10.13332/j.1000-1522.20150140

LIU Peng-ju, XIA Zhi-wu, TANG Xiao-ming. Slope position extraction method based on DEM and slope features[J]. Journal of Beijing Forestry University, 2016, 38(2): 68-73. DOI: 10.13332/j.1000-1522.20150140

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Slope position extraction method based on DEM and slope features

Research Institute of Resource Information Techniques, Chinese Academy of Forestry, Beijing, 100091, P. R. China.

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Received Date: April 28, 2015
Revised Date: November 01, 2015
Published Date: February 28, 2016

Graphical Abstract

Abstract

Abstract

Slope position is an important factor describing relief in the hillslopes. The automatic extraction of slope position has great significance in the natural habitat analysis and geo-ecological process modelling. Based on digital terrain analysis, we propose a slope position classification method which considers both slope profile and relative position index. And then the algorithm of the method was designed and programmed. According to forest resources survey rule, the slope position extraction test was carried out in the western mountainous areas of Beijing based on DEM data at the 1∶250 000 scale. The test has achieved the expected result. The result showed that the method can realize the localization of relative position index calculation and slope profile segmentation,and make the classification more objective and reasonable.
- slope positions extraction,
- flow path,
- relative position index,
- slope profile,
- digital terrain analysis

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References (28)

References

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