摘要
利用3S技术提取豫西黄土丘陵区侵蚀沟数量、长度、面积等信息,从行政区、地貌类型两个角度对侵蚀沟空间分布特征进行分析。结果表明:研究区沟蚀严重,侵蚀沟平均长度为902.55 m,沟道总面积为11 578.78 km2,占研究区总面积的41.7%,平均沟壑密度为1.37 km/km2;侵蚀沟道主要分布在卢氏县、嵩县、灵宝市和汝阳县;土石山区侵蚀沟数量最多、侵蚀面积最大。
This paper used 3S technology to extract the information of erosion quantity, length and area of gullied rolling loess region of West Henan. The spatial distribution characteristics of eroded gully were analyzed from two aspects of the administrative area and the landform type. The results show that the gully erosion in the study area is serious. The average length of the eroded gully is 902.55 m. The total eroded gully area is 11578.78 km^2, which accounts for 41.7% of the study area. The average density of gully is 1.37 km/km^2. Eroded gullies mainly concentrate in Lushi County, Songxian County, Lingbao City and Ruyang County. There are the largest number of eroded gullies and the largest eroded area in the rocky hilly area.
出处
《人民黄河》
CAS
北大核心
2016年第11期85-88,共4页
Yellow River
基金
河南省水利科技攻关计划项目(GG201302)
关键词
侵蚀沟
分布特征
水土流失
黄土丘陵区
豫西
eroded gully
distribution characteristics
soil and water loss
gullied rolling loess area
West Henan Province
