ZHU Qifeng, YANG Qinke, SHI Dong, et al. Influence of Slope Classification Method on Slope Mapping[J]. Bulletin of Soiland Water Conservation, 2017, 37(3): 314-320.
DOI:
ZHU Qifeng, YANG Qinke, SHI Dong, et al. Influence of Slope Classification Method on Slope Mapping[J]. Bulletin of Soiland Water Conservation, 2017, 37(3): 314-320. DOI: 10.13961/j.cnki.stbctb.2017.03.054.
Influence of Slope Classification Method on Slope Mapping
[Objective] A variety of slope classification methods was applied for slope mapping to explore the influence of different methods on them.[Methods] We selected three sites that are in Suide County of Shaanxi Province
Qinling Mountains in Meixian County of Shaanxi Province and Baiquan County of Heilongjiang Province as the case study areas. A variety of slope classification methods were applied to classify slope. Using the quantitative indicators
we analyzed the spatial pattern and statistical distribution characteristics of slope map.[Results] (1) For specific site mapping
quantile or Evans classification method is better; while for comparison of different sites
unified classification scheme is better; (2) Spatial variation decreased dramatically after slope was classified; (3) All slope classification methods lose some slope information; (4) All slope classification schemes were difficult to represent statistical distribution law of slope accurately.[Conclusion] (1) The slope surface and natural breakpoint methods are better; (2) With the increase of grading space
slope information declines rapidly in a power function; (3) Statistical distribution of slope is better to be mapped with slope surface and natural breakpoint methods.
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