基于ArcGIS榆林沙区典型小流域可持续性调查研究  

Investigation and Study on the Sustainability of Typical Small Watersheds in Yulin Sandy Area Based on ArcGIS

作　　者：曹双成 乔一娜 马志林 CAO Shuang-cheng;QIAO Yi-na;MA Zhi-lin(Shaanxi Academy of Forestry,Xi’an,Shaanxi 710082)

机构地区：[1]陕西省林业科学院,陕西西安710082

出　　处：《安徽农业科学》2024年第19期54-58,共5页Journal of Anhui Agricultural Sciences

基　　金：陕西省科学技术厅一般项目(2022SF-422)。

摘　　要：采用地理信息系统(ArcGIS)技术、野外调查等方法对芹河小流域地理特征(海拔、坡度、坡向)和土地利用现状进行分析。结果表明:芹河小流域海拔在1 062~1 226 m,西南高、东北低;小流域的整体坡度较低,大致为6°以下,说明小流域整体地势平缓;从小流域的地面坡向可以看出,小流域为阴坡或半阴坡,面积为2 957.36 km^(2),占流域面积的65.80%。芹河小流域的土地利用现状分析发现在经过治理之后,土地利用结构趋于合理,但仍需进一步完善。Using geographic information system(ArcGIS)technology,field surveys,and other methods to analyze the geographical characteristics(altitude,slope,aspect)and land use status of the Qinhe small watershed.The results showed that the altitude of the Qinhe small watershed was 1062-1226 meters,with higher elevations in the southwest and lower elevations in the northeast;the overall slope of the small watershed was relatively low,roughly below 6°,indicating that the overall terrain of the small watershed was smooth.From the surface slope of the small watershed,it could be seen that it was a shaded or semi shaded slope with an area of 2957.36 km^(2),accounting for 65.80%of the watershed area.The analysis of the current status of the land use of the Qinhe Basin could be seen that after the management,the structure of the land use was more reasonable,but it still needs to be further improved.

关 键 词：小流域 可持续性 ARCGIS 榆林沙区 

分 类 号：X17[环境科学与工程—环境科学]