Analysis of the spectral response of Tamarix spp vegetation to the soil salinity based on ground spectral measurements

CORC > 新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所(2010年以前数据)

	Analysis of the spectral response of Tamarix spp vegetation to the soil salinity based on ground spectral measurements
	Jiapaer ; Guli1 ; Chen ; Xi1 ; Bao ; Anming1
	2010
会议名称	The Proceedings of SPIE- The International Society for Optical Engineering, 2010, the Remote Sensing for Agriculture, Ecosystems, and Hydrology XII
会议日期	2010
会议地点	Toulouse, France
关键词	Absorption - Agriculture - Chlorophyll - Ecosystems - Hydrology - Landforms - Porphyrins - Reflection - Remote sensing - Salinity measurement - Salt removal - Soils - Water - 1550 nm - Changing trends - Chlorophyll contents - Moisture contents - Saline soil - Salt content - Salt-affected soil - Soil parameters - Soil salinity - Soluble salts - Spectral indices - Spectral measurement - Spectral response - Tamarix spp canopy - Tarim river - Vegetation growth - vegetation indices
中文摘要	In this paper, the field-derived hyperspecral reflectance of the Tamarix spp vegetation and background soil parameters (soluble salt content and eight base ions) of associated saline soil at the lower reaches of the Tarim River were measured and studied. The spectral responses of the Tamarix spp canopy with different level saline soil, and the relationship between soil salt variables and vegetation spectral indices were analyzed in order to understand the sensitive bands and the appropriate vegetation spectral indices. The results revealed that:(1) the spectra at band ranges 600-750nm,1350-1550nm change regularly with the increasing salt content of the background soil. (2) The removal continuum reflectance shows that the three absorb troughs with band ranges 460-560nm, 560-760nm,1050-1300nm, 1300-1700nm, can play an important role in indicating increasing changes of soil salt. Theses sensitive bands just reflect the characteristics of the chlorophyll content, moisture content of the vegetation. It presents a negative correction between the absorption valley changing trend and the salt content in the background soil. When the soil salinity content is higher, the corresponding absorption valley value that reflects vegetation growth condition characteristic is not more obvious. (3) Further analysis are conducted on the absorption width at the band range 1300-1700nm, the absorption width at the band range 560-760nm, λred, absorption depth at the band range 1050-1300nm, R 1450, MSAVI, trough area of the band range 560-760nm, λred and the absorption depth at the band range 560-760nm, these nine indices can be used to predict salt values of saline soil and evaluate the degree of soil salinity. © 2010 Copyright SPIE - The International Society for Optical Engineering. (19 refs.)
收录类别	EI
会议录	Remote Sensing for Agriculture, Ecosystems, and Hydrology XII
ISSN号	0277-786X
内容类型	会议论文
源URL	[http://ir.xjlas.org/handle/365004/10906]
专题	新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据)
推荐引用方式 GB/T 7714	Jiapaer,Guli1,Chen,et al. Analysis of the spectral response of Tamarix spp vegetation to the soil salinity based on ground spectral measurements[C]. 见:The Proceedings of SPIE- The International Society for Optical Engineering, 2010, the Remote Sensing for Agriculture, Ecosystems, and Hydrology XII. Toulouse, France. 2010.