为了探明库布齐沙漠东缘荒漠藻人工生物结皮的光谱特性,采用HR1024地物光谱仪,测定研究区包括荒漠藻在内的主要地物光谱数据,分析内蒙古林业科学研究院达拉特旗沙漠综合科学研究站不同年份接种的荒漠藻黑色、绿色结皮及裸沙、沙打旺、油蒿、沙柳的光谱特性及其变化规律。结果表明:1)沙打旺、油蒿、沙柳3种绿色植物光谱曲线与健康植被光谱曲线相近,“红边”位置明显,但荒漠藻黑色、绿色结皮及裸沙的光谱反射率变化比较平缓。2)荒漠藻绿色结皮表现出绿色植物所具有的光谱曲线变化特点;荒漠藻黑色结皮与绿色结皮光谱反射率相比,总的变化趋势为,在350~710 nm波段之间,黑色结皮光谱反射率较绿色结皮高,在710~1 350 nm波段之间,黑色比绿色结皮的光谱反射率低。 In order to ascertain the spectral characteristics of desert biological algal crust in the eastern edge of the Khuzizi Desert, the spectral data of major species including desert algae in the study area were determined by HR1024 terrestrial spectrometer. The Dalate Banner of Inner Mongolia Academy of Forestry Spectral Characteristics and Changes of Desert Algae Black, Green Crusts and Bare Sands, Astragalus adsurgens, Artemisia ordosica and Salix psammophila in different years in Desert Integrated Scientific Research Station. The results showed that: 1) The spectral curves of Astragalus adsurgens, Artemisia ordosica and Salix psammophila were similar to the spectral curves of healthy vegetation, but the positions of “red edge” were obvious. However, the spectral reflectance of desert black algae, The rate of change is relatively gentle. 2) The green crusts of the desert algae showed the characteristics of spectral changes of the green plants. Compared with the spectral reflectance of the green crusts, the desert crusts showed the following trend: at 350-710 nm, black Crust spectral reflectance is higher than that of green crust. Between 710 and 1 350 nm bands, the reflectance of black is lower than that of green crust.