山西农业大学学报（自然科学版）2016，Vol.36Issue(6)：417-421,5.
基于ASTERGDEM数据的山西地形起伏度分析研究
Analytical study of the relief amplitude in Shanxi Province based on ASTER GDEM data
摘要
Abstract
Based on the 30 m resolution ASTER GDEM data ,with the support of the GIS system ,Firstly ,the relief amplitude of Shanxi province was extracted with the neighborhood analysis method at different neighborhood windows (2 × 2 ,3 × 3 ,4 × 4 ,… ,35 × 35 ,40 × 40 ,45 × 45 ,50 × 50 ,55 × 55 ,60 × 60) .Then ,the mean change‐point analysis method was used to calculate the best calculation unit ,and the classification map of relief amplitude in Shanxi province was drawn .Finally , the features of relief amplitude were analyzed . The results showed that the 17 × 17grid unit (0.260 1 km2 ) was the best calculation unit for extracting the relief amplitude in Shanxi based on the 30 m resolution ASTER GDEM data ,the relief amplitude of Shanxi was mainly small relief amplitude .The mean change‐point analysis method is an ideal method to determine the best calculation unit .关键词
水土流失/ASTER GDEM/地形起伏度/最佳计算单元/山西省Key words
Water and soil loss/ASTER GDEM/Relief amplitude/Best calculation unit/Shanxi province分类
农业科技引用本文复制引用
陈学兄,毕如田,刘正春,丁一,张小军..基于ASTERGDEM数据的山西地形起伏度分析研究[J].山西农业大学学报（自然科学版）,2016,36(6):417-421,5.基金项目
山西省科技攻关项目（20120311009-1）；山西农业大学引进人才博士科研启动项目 （）
