桂林理工大学学报2017，Vol.37Issue(1)：140-145,6.DOI:10.3969/j.issn.1674-9057.2017.01.021
集水面积阈值的拟合方法
Fitting method research of drainage area threshold
摘要
Abstract
At present,the application of DEM data extraction of digital river network is developing,and catchment area threshold is a key link in the process of extracting digital river network.Influenced by many factors,this study selected threshold impact factor from many related factors influencing the rivers.By statistical methods and principles,quantitative research rainfall threshold and influence factors,the relationship between slope,soil,vegetation,is explored with threshold factors for fitting threshold.The results show that the method of weighted average to estimate the reasonable threshold value after one-dimensional fitting is more superior than the multivariate fitting method.Two fitting methods have better spatial adaptability.关键词
集水面积阈值/相关性分析/熵权法/线性回归Key words
drainage area threshold/correlation analysis/entropy weight method/linear regression分类
天文与地球科学引用本文复制引用
陈天伟,马红艳,孟光明,何艳萍..集水面积阈值的拟合方法[J].桂林理工大学学报,2017,37(1):140-145,6.基金项目
国家自然科学基金项目(41161072) （41161072）
广西空间信息与测绘重点实验室资助课题(15-140-07-09) （15-140-07-09）
广西“八桂学者”岗位专项经费项目 （）
