摘要
以新疆精河县小海子山地草原为研究对象,运用地面摄影测量的方法获取样区DEM及正射影像。利用ArcGIS 9.1软件对四个样区的基本地形进行分析。结合地形因子,对牲畜采食践踏路迹的形态特征、分布密度、宽度、剖面等因子进行提取和计算,分析牲畜采食践踏路迹的生态作用和土壤侵蚀特征,并进行放牧程度的评价。
Studying the Xiaohaizi mountain grassland of Jinghe county, we use terrestrial pnotogrammetry to obtain DEM and orthoimage data from sample region. By using ArcGIS 9.1 software the paper analyzed the basic terrain of four sample region. By extracting and calculating the morphological characteristics, the distribution density and the distribution width and profile of feeding and trampling track, the paper analyzed ecological effect and soil erosion characteristics combined with topographic factor, and evaluated the grazing extent.
出处
《新疆环境保护》
2013年第2期8-14,共7页
Environmental Protection of Xinjiang
关键词
DEM
正射影像
采食践踏路迹
形态特征
土壤侵蚀
DEM
orthoimage data
feeding and trampling track
morphological characteristics
soil erosion
