基于低空遥感的水土流失现状分析——以陕西省榆林市鲍家寺为例  

The Analysis of Soil and Water Loss Based on Low Altitude Remote Sensing——Take Baojiasi in Yulin,Shaanxi Province as an Example

作　　者：张养安[1] 宋晓强 李俊锋[3] 夏积德[1] 

机构地区：[1]杨凌职业技术学院,陕西杨凌712100 [2]陕西省水土保持局,陕西西安710004 [3]陕西测绘地理信息局,陕西西安710054

出　　处：《杨凌职业技术学院学报》2017年第4期1-4,9,共5页Journal of Yangling Vocational & Technical College

基　　金：陕西省2015年水土保持科研示范项目"低空遥感在水土保持规划设计中的应用"(1502)

摘　　要：为了促进水土保持规划设计工作的信息化进程,提高规划设计效率与标准化水平,本研究以低空遥感获取的DEM和DOM为数据源,建立可视化较强的三维系统平台,提取了研究区水保治理工程土地利用现状图,进行了该区的水土流失现状分析,结果表明:研究区水土流失面积占比81.76%,其中轻度流失面积占比63.13%;中度流失面积占比0.29%;强烈流失面积占比8.49%;极强烈流失面积占比9.63%;剧烈流失面积占比0.22%。从结果来看,该区轻度水土流失面积比例较大,需依据水土流失强度尽快采取相应的水土保持综合防治措施,防止水土流失进一步加剧。In order to promote the process of informationization of planning and design work of soil and water conservation,improve the design efficiency and standardization level,based on the low altitude remote sensing,the DEM and DOM as the data source was obtained,the three-dimensional visualization system of the study area was established and status map of land use of water conservation project of the area was extracted,and the present situation of soil erosion in the area was analyzed.The results showed that the soil erosion area accounted for 81.76% of the study area,of which mild erosion area accounted for 63.13%;moderate erosion area accounted for 0.29%;strong erosion area accounted for 8.49%;very strong erosion area accounted for 9.63%;severe erosion area accounted for 0.22%.As a result,the proportion of light soil erosion in this area is relatively large,so it is necessary to take corresponding water and soil conservation measures as soon as possible according to the intensity of soil erosion,so as to prevent soil erosion further intensified.

关 键 词：低空遥感 水土流失现状 DEM DOM 

分 类 号：S157[农业科学—土壤学] V279[农业科学—农业基础科学]