摘要
土壤是一个时空连续的变异体,传统土壤参数测定与监测方法难以揭示土壤的时空间异质性规律;土壤光学遥感可以实现土壤主要参数的快速、宏观测定。本文综合评述了土壤不同理化参数(有机质、土壤水分、矿物组成、土壤质地、土壤结皮)在光学波段的光谱特征与遥感反演,光学遥感在土壤分类与制图方面的应用;分析了土壤线的各种影响因素(外部因素及相关土壤理化参数),以及土壤线对植被指数定量监测植被状况的重要性;归纳了土壤光学遥感存在问题与发展趋势。
The properties of soil spatially vary with time,however,the traditional soil parameter measuring methods can not reveal the spatio-temporal heterogeneity law.Soil parameters can be achieved rapidly and macroscopically with soil optical remote sensing.The spectral characteristics of different soil physical and chemical parameters,such as organic matter,soil moisture,mineral composition,soil texture and soil crust,were discussed in this paper.The application of optical remote sensing in soil classification and mapping,the internal and external factors influencing soil line,and the importance of soil line in vegetation monitoring with vegetation indices were analyzed.Finally,the problem existed and developing trend of optical remote sensing were concluded.
出处
《土壤通报》
CAS
CSCD
北大核心
2007年第6期1196-1202,共7页
Chinese Journal of Soil Science
基金
中国科学院知识创新工程重要方向项目(KZCX3-SW-356)
中国科学院资源环境领域野外台站基金资助
关键词
土壤
遥感
光谱
土壤线
有机质
土壤水分
Soil
Remote sensing
Spectral
Soil line
Organic matter
Soil moisture
