X.-R. Li, M.-Z. He, S. Zerbe, X.-J. Li and L.-C. Liu 2010: Micro-geomorphology determines community structure of biological soil crusts at small scales. - Earth Surface Processes and Landforms35(8): 932-940. [RLL List # 221 / Rec.# 32445] Keywords: SOIL CRUSTS/ BIOLOGICAL SOIL CRUSTS/ GEOMORPHOLOGY/ STRUCTURE/ TENGGER DESERT/ SPACIAL DISTRIBUTION/ CHINA
Abstract: [Study in the Tengger Desert, Inner Mongolia, China. "Our results showed that higher soil pH and higher total potassium content in topsoil positively correlated with the colonization of cyanobacteria and algae in the earliest successional stages of BSCs [biological soil crusts], while increasing dust deposition onto the topsoil enhanced the development of lichen and mosses in the later stages of BSCs. Increasing soil moisture raised the proportion of mosses and lichen in BSCs, this will possibly change the ecological functions of BSCs, such as nitrogen-fixation by cyanobacteria, due to the conversion from a complex to relative simple type of BSC."]