艾比湖流域是有代表性的荒漠区,不仅是中亚植物区系和蒙古植物区系的交错区域,而且是指征准噶尔盆地荒漠环境变化的关键地区。研究选取该流域为试验区,采用AvaField-3便携式高光谱地物波谱仪分别对柽柳、白刺、锦鸡儿、梭梭等典型荒漠植被反射光谱测定。对测定结果进行原始光谱分析、一阶导数红边分析,包络线去除分析,发现荒漠植物红边位置靠近长波方向趋势明显并且在800～1 000nm反射率低于一般植被;另外荒漠植物反射率大小在490～510nm,540～560nm,670～690nm,680～750nm,1 100～1 140nm差别显著,可作为识别各种荒漠植物特征波段。
The Ebinur Lake Basin is representative of the desert areas,which is not only the cross area of the central Asian flora and mongolia flora,but also is the key area indicating desert environment change of the Junggar Basin.Selecting Ebinur Lake Basin as the study area,we measured reflectance spectra of tamarix ramosissima and nitraria,caragana,haloxylon and other typical desert vegetation by the AvaField-3 portable hyperspectral spectral instrument.Through analyzing the reflectance spectra by original spectra analysis,first-order derivative analysis on red edge and envelope remove analysis,we found red edge of desert plants position is close to the long wave direction and reflectance of desert vegetation is lower.In addition,because of the significant differences,the bands of 490～510nm,540～560nm,670～690nm,680～750nm,1100～1140nm can be regarded a as the bands for identification of various desert plants.
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