The influence of desiccation on the recovery process of nitrogenase activity in restored biological soil crusts  

作　　者：Jiaoli Zheng Shuangshuang Li Chengrong Peng Dunhai Li 

机构地区：[1]Key Laboratory of Algal Biology,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China [2]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Science China(Life Sciences)》2017年第11期1283-1285,共3页中国科学（生命科学英文版）

基　　金：supported by the Special Fund for Forest Scientific Research in the Public Welfare of China (201404204-02)

摘　　要：Dear Editor,Biological soil crusts(BSCs),a layered structure formed by associations of soil organisms and topsoil,dominate arid and semiarid areas and serve important ecological functions in these areas(Eldridge and Greene,1994).Nitrogen fixation by BSCs is the main source of N in arid and semi-arid ecosystems.Desiccation is the most notable factor that influences BSCs,which recover physiological activity only after moistening.By influencing the amount of carbohydrates,Dear Editor, Biological soil crusts （BSCs）, a layered structure formed by associations of soil organisms and topsoil, dominate arid and semiarid areas and serve important ecological functions in these areas （Eldridge and Greene, 1994）. Nitrogen fixation by BSCs is the main source of N in arid and semi-arid ecosystems. Desiccation is the most notable factor that influ- ences BSCs, which recover physiological activity only after moistening. By influencing the amount of carbohydrates,

关 键 词：The influence DESICCATION the recovery process nitrogenase  activity restored biological soil crusts 

分 类 号：S154[农业科学—土壤学]