土壤表层有机质空间分析的遥感技术应用综述

土壤有机质在生态系统中意义重大。借助遥感技术手段能了解和量化土壤有机质的空间分布特征和动态变化,有助于人们采取合理的生产活动以实现环境的可持续利用。基于遥感技术的土壤有机质空间分析具有观测区域面积广、费用低、准确性高和实时性强等优点,遥感技术及图像解译技术的发展也使得此方法潜力巨大。综述了利用遥感技术监测土壤有机质空间分布及其动态的原理、主要方法及存在的一些问题,并结合目前和未来遥感技术发展趋势展望了遥感技术在土壤有机质空间分析中的应用前景。

Review on Spatial Analysis of Surface Soil Organic Matter Using Remote Sensing Technique

Soil organic matter has great significance in ecosystem.Aided by remote sensing approach,we can characterize and quantify the spatial distribution and dynamic change of soil organic matter.It helps humans to take reasonable activities in order to maintain the consistency of environment.Spatial analysis of soil organic matter based on remote sensing technique can measure area in large scale and have high accuracy and better real-time,however,the cost may be very low so that it can be widely applied and benefit most.The development of remote sensing technique and image interpreter methods also ensure its great potential in the promising application.This paper reviewed the primary principles and approaches to investigate the spatial distribution and dynamic changes of soil organic matter using the remote sensing technique.Based on the existing researches,problems are proposed to be resolved.Meanwhile,in view of the current and future development of remote sensing technique,a promising perspective is made on applying remote sensing technique in spatial analysis of soil organic matter.