长白山高山冻原生态系统磷硫生物循环的研究

应用生态学报 ›› 2005, Vol. 16 ›› Issue (7): 1230-1234.

长白山高山冻原生态系统磷硫生物循环的研究

魏晶, 吴钢, 王欢, 郝莹婕, 尚文艳

1. 中国科学院生态环境研究中心系统生态重点实验室, 北京 100085;
2. 山西省平遥县城乡建设局, 平遥 031100

收稿日期:2004-10-02 修回日期:2005-02-25 出版日期:2005-07-15 发布日期:2005-07-15
通讯作者: 魏晶,女,1973年生,博士生.主要从事环境管理和恢复生态学研究,发表论文11篇.Tel:010-62849112;E-mail:weijingrcees@126.com
基金资助:
国家自然科学基金项目(40173033)和中国科学院知识创新工程重要方向资助项目(KZCX3-SW-423).

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

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

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

摘要/Abstract

摘要： 利用分室模型对长白山高山冻原生态系统磷硫生物循环进行了研究.结果表明,长白山高山冻原植被-土壤系统中总磷和总硫净储存分别为16 088.6 t和26 079.4 t,其中土壤库分别占99.2%和99.5%.磷硫在土壤库、凋落物库和植被库的分布极不平衡,储量分别是:植被库中磷46.14 t、硫64.82 t,其中地上部分储存磷21.88 t、硫44.21 t,地下根系储存磷24.28 t、硫20.61 t,在植物亚系统中47.4%的磷和68.2%的硫储存在地上部分;凋落物库中磷89.63 t、硫53.16 t;土壤库中磷15 952.8 t、硫26 014.6t.长白山高山冻原植被-土壤系统中,磷年吸收量和年凋落物归还量分别为24.52和31.59 t;硫在地上植物活体、地下根系中年转移量和年凋落物归还量分别为31.18、10.12和21.06 t,硫自然归还率为67.5%.

关键词: 磷, 硫, 生物循环, 高山冻原, 长白山

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

中图分类号:

Q147

魏晶, 吴钢, 王欢, 郝莹婕, 尚文艳. 长白山高山冻原生态系统磷硫生物循环的研究[J]. 应用生态学报, 2005, 16(7): 1230-1234.

WEI Jing, WU Gang, WANG Huan, HAO Yingjie, SHANG Wenyan . Phosphorus and sulphur bio-cycling in alpine tundra ecosystem of Changbai Mountains[J]. Chinese Journal of Applied Ecology, 2005, 16(7): 1230-1234.

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