MEASURING AND VERIFYING OF SOIL MOISTURE IN DESERT STEPPE FROM DIFFERENT SPATIAL SCALING

被引：2
|
作者：
Pang, Zhiguo [1 ,2 ]
Cai, Jingya [1 ,2 ]
Fu, Jun'e [1 ,2 ]
Song, Wenlong [1 ,2 ]
Lu, Yizhu [1 ,2 ]
机构：
[1] China Inst Water Resources & Hydropower Res, Beijing, Peoples R China
[2] Res Ctr Flood & Drought Reduct, Minist Water Resources, Beijing, Peoples R China
来源：
2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2016年
关键词：
soil moisture (SM); point measurement; cosmic-ray neutron; remote sensing (RS); verification;
D O I：
10.1109/IGARSS.2016.7729771
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Soil moisture (SM) plays a decisive function during the grassland degradation and restoration process. In this paper, SM in desert steppe is measured with various methods at different spatial scale, including point-, field-and regional-scale, and the SM results from FDR, CRS and remote sensing (RS) are verified mutually. The results show that CRS is adaptable to measure desert steppe, of which with FDR R-2 is 0.83 and RMSE is 0.0162kg/kg; substituting CRS SM validated for traditional point measurement to verify RS retrieval, a much stronger correlation is achieved with R-2 of 0.97 much bigger than that of FDR and RS, whose R-2 is only 0.80, proving quantifiably that CRS is obviously a new effective means for verifying SM of RS retrieval.
引用
收藏
页码：2985 / 2988
页数：4
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