基于GIS技术的颖川河流域水土流失空间数据库的创建  

Creating a Spatial Database of Soil and Water Loss in Yingchuan River Basin Based on GIS Technology

作　　者：罗玉恒[1] 周健[1] 

机构地区：[1]甘肃林业职业技术学院,甘肃天水741020

出　　处：《绿色科技》2015年第11期5-8,共4页Journal of Green Science and Technology

基　　金：甘肃省科技计划项目(编号:144FKCE084)资助

摘　　要：指出了创建颖川河流域的空间数据库可用于区域水土流失的防治、水灾害的预测、土地整理与规划以及环境保护和经济的可持续发展研究。采用3S技术以及水土流水与防治等技术为支撑,以天水市颍川河流域为研究区域,结合影响水土流失的自然因子,进行了流域各项指标参数研究,运用GIS数据编辑与处理、地形分析、三维模型的创建、栅格计算等空间分析技术,集成了土地利用调查成果数据、地形数据、土壤数据、自然降雨量统计数据等多来源、多类型数据,并利用地形DEM和遥感影像数据,建立了颖川河流域GIS空间数据库。The establishment of spatial database of Yingehuan River basin can be used for the control of regional soil erosion, the prediction of water disaster, the consolidation and planning of land,the environmental protection and the research of economic sustainable development. Based on the 3S technology and the soil e rosion and control technology,the article takes the Yingchuan River basin of Tianshui as the study area and combines with the natural factors affecting soil and water loss to study the various index parameters of watershed. Through the GIS data editing and processing, terrain analysis, establishment of 3D model, grid computing and other spatial analysis technology,the article integrates the multiple sources and types of data,including the data of land use survey results, terrain data, soil data, and the natural rainfall statistics data. Combining with the topography of DEM and remote sensing image data,the article aims to establish GIS spatial database of Yingchuan River basin.

关 键 词：GIS 颖川河流域 水土流失 数据集成 空间数据库 

分 类 号：S157[农业科学—土壤学]