Effect of Grassland Degradation on Arbuscular Mycorrhizal Symbiosis of Leymus Chinensis(Trin.) Tzvel. in Typical Steppe

doi:10.11733/j.issn.1007-0435.2009.06.007

›› 2009, Vol. 17 ›› Issue (6): 731-734.DOI: 10.11733/j.issn.1007-0435.2009.06.007

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Effect of Grassland Degradation on Arbuscular Mycorrhizal Symbiosis of Leymus Chinensis(Trin.) Tzvel. in Typical Steppe

WU En, LI Chong-xiang, ZHANG Yu, WANG Cong-ming, YUN Jin-feng

College of Ecology and Environmental Science, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia Autonomous Region 010019, China

Received:2009-04-02 Revised:2009-06-25 Online:2009-12-15 Published:2009-12-15

草原退化对典型草原羊草菌根共生的影响

乌恩, 李重祥, 张宇, 王聪明, 云锦凤

内蒙古农业大学生态环境学院, 呼和浩特, 010019

通讯作者: 云锦凤,E-mail:csgrass@qublic.hh.nm.cn
作者简介:乌恩(1961- ),男,蒙古族,博士后,副教授,主要从事草地营养、草地菌根研究,E-mail:wuen2004@163.com
基金资助:
国家博士后研究资助项目(27632)

Abstract

Abstract: In order to probe into the effect of grassland degeneration on the arbuscular mycorrhizal symbiosis of Leymus chinensis(Trin.) Tzvel.in typical steppe,the arbuscular mycorrhizal colonization rate and the rhizosphere soil spore density were compared of the L.chinensis typical steppe with different degenerated gradients in Xilinhote city and the surrounding areas.The results show that the moderate degeneration and heavy degeneration site had significantly lower L.chinensis arbuscular mycorrhizal colonization rate and rhizosphere soil spore density than non-degeneration and the light degeneration sites.In summary,the moderate to heavy grassland degeneration prominently reduced the arbuscular mycorrhizal symbiosis of L.chinensis in typical steppe.

Key words: Grassland degeneration, Typical steppe, Leymus chinensis(Trin.) Tzvel., Arbuscular mycorrhiza, Symbiosis

摘要： 为探讨草原退化对典型草原羊草菌根共生的影响,对锡林浩特市及其周边的羊草(Leymus chinensis)典型草原进行了不同退化梯度羊草丛枝菌根侵染率和根围土壤丛枝菌根真菌孢子密度的比较.结果表明,中度退化和重度退化样地羊草丛枝菌根侵染率和根围土壤丛枝菌根真菌孢子密度显著低于未退化和轻度退化样地(P<0.05),说明中度-重度退化显著降低典型草原羊草的菌根共生.

关键词: 草原退化, 典型草原, 羊草, 丛枝菌根, 共生

CLC Number:

S812

WU En, LI Chong-xiang, ZHANG Yu, WANG Cong-ming, YUN Jin-feng. Effect of Grassland Degradation on Arbuscular Mycorrhizal Symbiosis of Leymus Chinensis(Trin.) Tzvel. in Typical Steppe[J]. , 2009, 17(6): 731-734.

乌恩, 李重祥, 张宇, 王聪明, 云锦凤. 草原退化对典型草原羊草菌根共生的影响[J]. , 2009, 17(6): 731-734.

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Effect of Grassland Degradation on Arbuscular Mycorrhizal Symbiosis of Leymus Chinensis(Trin.) Tzvel. in Typical Steppe

草原退化对典型草原羊草菌根共生的影响

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