摘要
针对不同类型农业干旱遥感监测方法的建立机理不同及其适用性受特定环境条件影响等问题,立足对农业干旱遥感监测方法有全面深入的认识及探究新的发展方向,文章系统梳理了农业干旱遥感监测的典型方法,以遥感波谱为轴线,分为光学、热红外、光学-热红外耦合、微波和多源数据融合方法,给出了各种方法的基本原理,并深入分析各类方法的适用条件。在此基础上,从理论方法研究与模型应用间的差距、非均一地表农业干旱监测、国产卫星体系建设三方面分析了农业干旱遥感监测存在的问题并进行了展望。本研究为旱情发生时,从众多遥感监测方法中选择适用的方法,以及及时评估旱情对农业生产的影响范围和程度提供参考。
Different types of agricultural drought remote sensing monitoring methods have different algorithm mechanisms and the applicability is affected by specific environmental conditions. In order to give a comprehensive and in-depth understanding of agricultural drought remote sensing monitoring methods and explore new development directions, section 1 of this paper systematically summarizes the typical methods of remote sensing monitoring of agricultural drought, including optical, thermal infrared, optical-thermal infrared coupling, microwave and multi-source data integration methods. The basic principles are also given in section 1.The applicability analysis of different methods is shown in section 2.In section 3,the problems of agricultural drought remote sensing monitoring are revealed and prospects are proposed based on three aspects: the gap between theoretical mechanism research and model application, agricultural drought monitoring for non-uniform surface and domestic satellite system construction. This study provides a reference for selecting suitable methods from numerous remote sensing monitoring methods and timely assessing the scope and extent of the impact of drought on agricultural production.
作者
陈媛媛
孙丽
杜英坤
韩巍
胡华浪
CHEN Yuanyuan;SUN Li;DU Yingkun;HAN Wei;HU Hulang(Big Data Development Center,Ministry of Agriculture and Rural Affairs,Beijing 100125,China)
出处
《遥感信息》
CSCD
北大核心
2022年第6期1-7,共7页
Remote Sensing Information
基金
国家重点研发计划(2021YFE0102000)
高分辨率对地观测系统重大专项(09-Y30F01-9001-20/22)。
关键词
农业干旱
干旱响应
监测机理
波谱
模型
agricultural drought
drought response
monitoring mechanism
spectrum
model
