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《Acta Ecologica Sinica》 2001-03
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Microbiotic soil crust──a research forefront in desertification-prone areas

YANG Xiao\|Hui 1,2 , ZHANG Ke Bin 1,2 ,ZHAO Yun Jie 1 (1 College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China;Shapotou Desert Experimental Station,Chinese Academy of Sciences,Lanzhou 730000,China)  
Microbiotic soil crust exists in desertification\|prone areas.The authors overviews the significant role,which microbiotic crust plays in desertification and its recovery processes.This paper focuses on the concept of crusts,the influence of crust on ecosystem and landscape change,including hydrological cycle,soil erosion,soil nutrient cycle,seedling establishment and growth of vascular plant,animal diversity,landscape heterogeneity,assessment of ecosystem change,and response of crust to disturbance and its recovery.Some preliminary suggestions are given for further understanding the relationship between microbiotic soil crust and ecosystem or landscape in desertification\|prone areas.
【Fund】: 国家自然科学基金! ( 39970 61 0 );; 中国科学院沙坡头沙漠试验研究站开放基金! ( 2 0 0 0 0 1 0 )资助项目
【CateGory Index】: Q142.2
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