东祁连山高寒灌丛草地土壤微生物生理功能群的动态分布研究

草业学报 ›› 2011, Vol. 20 ›› Issue (2): 31-38.

东祁连山高寒灌丛草地土壤微生物生理功能群的动态分布研究

王国荣,陈秀蓉^*,张俊忠,韩玉竹,胡宜刚,杨成德,徐长林

甘肃农业大学草业学院草业生态系统教育部重点实验室中-美草地畜牧业可持续发展研究中心,甘肃兰州 730070

收稿日期:2009-12-11 出版日期:2011-02-25 发布日期:2011-04-20
通讯作者: E-mail:chengxiurong@gsau.edu.cn
作者简介:王国荣(1980-),女,陕西商南人,助教,硕士。E-mail:wanggr@gsau.edu.cn
基金资助:
国家自然科学基金项目(30471232),甘肃省中青年基金(3YS41-A25-009)和甘肃省“555”人才工程资助。

The temporal and spatial distribution of soil microorganism physiological floras in alpine shrubs of the eastern Qilian mountains

WANG Guo-rong, CHEN Xiu-rong, ZHANG Jun-zhong, HAN Yu-zhu, HU Yi-gang, YANG Cheng-de, XU Chang-lin

College of Grassland Science,Gansu Agricultural University, Key Laboratory of Grassland Ecosystem, Ministry of Education, Sino-U.S. Centers for Grassland Ecosystem Sustainability, Lanzhou 730070, China

Received:2009-12-11 Online:2011-02-25 Published:2011-04-20

摘要/Abstract

摘要： 通过对2005和2006年东祁连山杜鹃灌丛、高山柳灌丛和金露梅灌丛土壤微生物生理功能群的时空动态进行研究。结果表明,1)各微生物生理类群的季节变化趋势在2005与2006年存在差异;2)从土壤剖面层次来看, 0~10 cm土层微生物生理功能群的数量大于10~20 cm土层;3)土壤微生物生理功能群的数量大小顺序为:硝化细菌＞反硝化细菌＞氨化细菌＞好气性自生固氮菌＞嫌气性自生固氮菌＞芽孢杆菌＞好气性纤维素分解菌＞嫌气性纤维素分解菌;4)不同灌丛土壤中,土壤微生物生理类群总数量不同表现为:高山柳灌丛＞杜鹃灌丛＞金露梅灌丛。

Abstract: The temporal and spatial distribution characteristics of soil microorganism physiological groups of three alpine shrubs(Rhododendron fruticosa, Salix cupularis, Dasiphoru fruticosa) were studied in 2005 and 2006. The results showed that: 1) The seasonal dynamics of soil microorganism functional groups differed; 2) At different soil depths, the numbers of soil microorganism functional groups in the top soil layer (0-10 cm) were higher than in the deeper layer (10-20 cm); 3) The quantity of soil microorganism functional groups was in the order, Nitrifiers＞Denitrifying bacteri＞Ammonifying bacteria＞Aerobe Azotobacter＞Anaerobic＞Azotobacter＞Bacillus＞Aerobe cellulose decomposing microoganisms＞Anaerobic decomposing microorganisms; 4) Total numbers of soil microorganism physiological groups differed in different shrubs. Numbers of groups in S. cupularis sites were larger than in the other two sites. Those in R. fruticosa sites were less than in the S. cupularis sites but more than in the D. fruticosa sites.

中图分类号:

王国荣,陈秀蓉,张俊忠,韩玉竹,胡宜刚,杨成德,徐长林. 东祁连山高寒灌丛草地土壤微生物生理功能群的动态分布研究[J]. 草业学报, 2011, 20(2): 31-38.

WANG Guo-rong, CHEN Xiu-rong, ZHANG Jun-zhong, HAN Yu-zhu, HU Yi-gang, YANG Cheng-de, XU Chang-lin. The temporal and spatial distribution of soil microorganism physiological floras in alpine shrubs of the eastern Qilian mountains[J]. Acta Prataculturae Sinica, 2011, 20(2): 31-38.

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