Welcome to Chinese Journal of Applied Ecology! Today is Share:

Chinese Journal of Applied Ecology ›› 2005, Vol. 16 ›› Issue (7): 1230-1234.

Previous Articles     Next Articles

Phosphorus and sulphur bio-cycling in alpine tundra ecosystem of Changbai Mountains

WEI Jing, WU Gang, WANG Huan, HAO Yingjie, SHANG Wenyan   

  1. Key Laboratory of Systems Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • Received:2004-10-02 Revised:2005-02-25 Online:2005-07-15 Published:2005-07-15

Abstract: The study with compartment model on the phosphorus (P) and sulphur (S) bio-cycling in alpine tundra ecosystem of Changbai Mountains showed that the total storage of P and S was 16 088.6 t and 26 079.4 t,of which,46.14 t and 64.82 t was in vegetation pool,89.63 t and 53.16 t in litterfall pool,and 15952.8 t and 26 014.6 t in soil pool,respectively.The above- and below-ground vegetation pool stored 21.88 t and 44.21 t,and 24.28 t and 20.61 t of P and S,respectively,and the above-ground vegetation pool had 47.4% of P and 68.2% of S in the vegetation subsystem.The transferable P amount was 24.25 t穣r-1 through plant absorption and 31.59 t穣r-1 through litterfall return,while the transferable S amount was 31.18 t穣r-1,10.12 t穣r-1 and 21.06 t穣r-1 in the aboveground plant,belowground root system,and litterfall return,respectively.The natural return ratio of S was 67.5%.

Key words: Phosphorus, Sulphur, Bio-cycling, Alpine Tundra, Changbai Mountains

CLC Number: