遥感技术在灌溉管理中的应用研究进展

Research Progress of the Application of Remote Sensing Technology in Irrigation Management

发展灌溉农业是满足全球人口日益增长的粮食需求的先决条件。但由于灌溉农业的扩张,导致灌区水资源出现了越来越多的问题,例如,灌溉农业的涝渍和土壤盐渍化。对这一双重威胁,传统方法是采取减少入流的预防措施,也可以采取增加水盐外流的补救措施,但效果并不理想。遥感和地理信息系统(GIS)的出现,为灌溉农业的涝渍和盐碱地监测和评价技术提供了一个良好的技术支撑。该文阐述了灌溉农业水资源及其研究意义,分析了遥感和地理信息系统应用的背景,概述了遥感和地理信息系统技术在水资源问题管理中的综合应用。

Strengthening irrigated agriculture is a prerequisite for meeting the ever-increasing food demands of the global population.However,with the expansion of irrigated agriculture,more and more problems appeared in water resources in irrigation areas.For example,waterlogging and soil salinization occurred more frequently than ever be⁃fore in irrigated agriculture.To address this double threats,Preventive measures can be taken to reduce inflow,and remedial measures can also be taken to increase the outflow of water and salt.So far,the effect has not been ideal as expected.The emergence of remote sensing and geographic information system(GIS)provides an excellent technical approach for the monitoring and evaluation techniques of waterlogging and saline-alkali land in irrigated agriculture.This article first outlined the issues existing in irrigated agricultural water resources and its research significance,and then introduced the background of the problem.Then we also discussed the comprehensive application of remote sensing and geographic information system technology in water resources management.