摘要
本文论述了ＤＥＭ（数字高程模型）在汇汉平原渍害研究中应用的原理和方法，分析了江汉平原渍害机理及其农田生态特征，建立了水稻损失估算模型，并在ＤＥＭ支持下估算了试验区的水稻渍害损失。
In this paper, the DEM application to the study of waterlogging damage in Jianghan plain is demonstrated in principles as well as methods, The waterlogging mechanism and its agroecological characters are analysed, and the loss estimation formula for rice due to waterlogging is developed. With the support of DEM, the rice loss of waterlogging is estimated in the test region
出处
《国土资源遥感》
CSCD
1992年第2期37-43,共7页
Remote Sensing for Land & Resources
基金
国家自然科学基金资助项目
