Classification of Geomorphic Forms of Huaihe River Source Based on DEM
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    Abstract:

    [Objective] Studying on the classification of geomorphologic types in Huaihe River Source to provide reference for land use, tourism, urban planning and biodiversity conservation in this area.[Methods] Taking Huaihe River source as an object of study, adopting the representative landform classification scheme in the Chai Zongxin scheme, Xu Hanming scheme and Gao Xuanyu scheme, using neighborhood analysis, reclassification, map algebra, and conversion tools in spatial analysis, the geomorphologic types of Huaihe River source were classified under each scheme and compared with the actual survey terrain based on the DEM data with a resolution of 30 meters so as to find the most suitable scheme for the basic morphologic classification of the Huaihe River source landforms.[Results] The Chai Zongxin scheme is single factor and can not reflect the basic features of the geomorphology. Gao Xuanyu scheme did not proved its advantages fully in the two grade classification for the study area, as it is more suitable for the area with high elevation and complex landform. The Xu Hanming scheme is based on 2 conditions, both relative height and altitude, that is to say, objective effect and subjective feeling of height were considered for basic morphologic classification of the geomorphology. Therefore, the Xu Hanming scheme is more suitable for the division of geomorphology in Huaihe River Source.[Conclusion] According to the Xu Hanming scheme, the geomorphic form of Huaihe River Source region was divided into 4 types:plain, hilly, low mountain and middle and low mountain, it is mainly covered by plain and hill, is low in the east and the north part and high in the west and the south part.

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王耕,李素娟,张兴国.基于DEM的淮河源地貌形态类型划分[J].水土保持通报英文版,2018,38(2):292-296

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History
  • Received:August 10,2017
  • Revised:September 23,2017
  • Adopted:
  • Online: May 17,2018
  • Published: