Spectral characteristics of artificial biological crust of desert alga in the east edge of Kubuqi Desert
YANG Guang1, LI Qing-He2
1. College of Ecology and Environmental Science, Inner Mongolia Agricultural University, 010019, Hohhot, China;
2. Inner Mongolia Water Supervision Center, 010020, Hohhot, China
Abstract The purpose of this study was to explore the spectral characteristics of artificial biological crust of desert alga in the east edge of Kubuqi Desert. The spectral data of various objects including the artificial biological crust of desert alga in the study area were measured using the HR1024 spectroradiometer, and the spectral characteristics and their variation rules of black and green desert algae crust, bare sand, Astragalus adsurgens Pall. , Artemisia ordosica Krasch. , Salix cheilophila in different years at the Dalateqi Desert Research Station of Inner Mongolia Academy of Forestry were analyzed. The results showed:1) the spectral curves of three kinds of green plants are similar to that of healthy vegetation,"red edge" position is obvious,but the changes of spectral reflectance of black and green desert algae crust and bare sand are relatively gentle; 2) the spectral characteristics of green desert algae crust are similar to those of green plants; in respect of the spectral reflectance, the black crust is higher than green crust between 350 and 710 nm, and lower from 710 - 1 350 nm.
YANG Guang,LI Qing-He. Spectral characteristics of artificial biological crust of desert alga in the east edge of Kubuqi Desert[J]. SSWCC, 2014, 12(1): 90-95.
