Spectral Characteristics of Biological Soil Crusts under the Different Types in the Water-Wind Erosion Crisscross Region on the Loess Plateau

doi:10.3964/j.issn.1000-0593(2018)07-2215-06

	Spectral Characteristics of Biological Soil Crusts under the Different Types in the Water-Wind Erosion Crisscross Region on the Loess Plateau
	Tian Yuan-sheng 1; Zhang Yue 1; Sun Wen-yi 1,2; Mu Xing-min 1,2; Gao Peng 1,2; Zhao Guang-ju 1,2
刊名	SPECTROSCOPY AND SPECTRAL ANALYSIS
	2018-07-01
卷号	38 期号:7 页码:2215-2220
关键词	Biological soil crusts Spectral characteristics Loess Plateau
ISSN号	1000-0593
DOI	10.3964/j.issn.1000-0593(2018)07-2215-06
通讯作者	Sun Wen-yi(sunwy@ms.iswc.ac.cn)
英文摘要	The study on spectral characteristics of biological soil crust in the water-wind erosion crisscross region in the Loess Plateau has important scientific value for the identification of biological soil crust based on remote sensing technology at regional scale, also provides important technical support for estimating the effect of biological soil crust on regional soil erosion control. The spectra of higher vegetation as well as the biological soil crust of algae with different coverage and different types of mosses were measured and quantified by Surface Species Spectrometry. The results are as follows, the algal bio-soil crust has similar spectral characteristics with soil in the water-wind erosion crisscross region in the Loess Plateau, and there is no obvious "peak valley" characteristic in the spectral curve. The reflectivity was reduced by the increasing coverage of the biological soil crust. Compared with the bare area, the spectral reflectance normalized mean of algae biological soil crust deceased 8. 64%, 15. 80% and 23. 09% respectively in the coverage of 10% to 20%, 30% to 40% and 50% to 60% in the visible area. The absorption characteristic at 680 nm (Chlorophyll) became increasingly obvious and the absorption valley at 2 200 nm (secondary mineral) became smaller as the coverage of algae biological soil crust increased. The spectral curve of moss biological soil crust showed the reflection peak of the green band, the absorption valley of the red light band and the high reflection of the near infrared band, which is similar with the vegetation. In the range of 760 similar to 930 nm, the slope of moss biological soil crust was 2. 5 to 4. 5 timed higher than that of vegetation. The study can provide some theoretical basis and technical support for the identification of biological soil crust.
WOS关键词	CHINA
WOS研究方向	Spectroscopy
语种	英语
出版者	OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS
WOS记录号	WOS:000439671600036
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/54511]
专题	中国科学院地理科学与资源研究所
通讯作者	Sun Wen-yi
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Tian Yuan-sheng,Zhang Yue,Sun Wen-yi,et al. Spectral Characteristics of Biological Soil Crusts under the Different Types in the Water-Wind Erosion Crisscross Region on the Loess Plateau[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2018,38(7):2215-2220.
APA	Tian Yuan-sheng,Zhang Yue,Sun Wen-yi,Mu Xing-min,Gao Peng,&Zhao Guang-ju.(2018).Spectral Characteristics of Biological Soil Crusts under the Different Types in the Water-Wind Erosion Crisscross Region on the Loess Plateau.SPECTROSCOPY AND SPECTRAL ANALYSIS,38(7),2215-2220.
MLA	Tian Yuan-sheng,et al."Spectral Characteristics of Biological Soil Crusts under the Different Types in the Water-Wind Erosion Crisscross Region on the Loess Plateau".SPECTROSCOPY AND SPECTRAL ANALYSIS 38.7(2018):2215-2220.