水土保持通报2017，Vol.37Issue(3)：314-320,7.DOI:10.13961/j.cnki.stbctb.2017.03.054
坡度分级方法对坡度制图的影响
Influence of Slope Classification Method on Slope Mapping
摘要
Abstract
[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.关键词
坡度/坡度分级/空间格局/信息容量Key words
slope/slope classification/space structure/information content分类
天文与地球科学引用本文复制引用
朱奇峰,杨勤科,师动,王春梅..坡度分级方法对坡度制图的影响[J].水土保持通报,2017,37(3):314-320,7.基金项目
国家自然科学基金项目“地表坡度的统计分布理论模型研究”(41371274),“黄土丘陵沟壑区侵蚀地形空间频率层次性研究”(41301284) （41371274）
