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新疆盐生植物芦苇根围AM真菌的空间分布特征

李桂真, 陈志超, 李新川, 盛建东, 黄长福, 金俊香

李桂真, 陈志超, 李新川, 盛建东, 黄长福, 金俊香. 新疆盐生植物芦苇根围AM真菌的空间分布特征[J]. 草业科学, 2016, 10(7): 1267-1274. DOI: 10.11829/j.issn.1001-0629.2015-0631
引用本文: 李桂真, 陈志超, 李新川, 盛建东, 黄长福, 金俊香. 新疆盐生植物芦苇根围AM真菌的空间分布特征[J]. 草业科学, 2016, 10(7): 1267-1274. DOI: 10.11829/j.issn.1001-0629.2015-0631
Gui-zhen Li, Zhi-chao Chen, Xin-chuan Li, Jian-dong Sheng, Chang-fu Huang, Jun-xiang Jin. Spatial distribution characteristics of arbuscular mycorrhizal fungi in the rhizosphere of halophytes Phragmites australis in Xinjiang[J]. Pratacultural Science, 2016, 10(7): 1267-1274. DOI: 10.11829/j.issn.1001-0629.2015-0631
Citation: Gui-zhen Li, Zhi-chao Chen, Xin-chuan Li, Jian-dong Sheng, Chang-fu Huang, Jun-xiang Jin. Spatial distribution characteristics of arbuscular mycorrhizal fungi in the rhizosphere of halophytes Phragmites australis in Xinjiang[J]. Pratacultural Science, 2016, 10(7): 1267-1274. DOI: 10.11829/j.issn.1001-0629.2015-0631

新疆盐生植物芦苇根围AM真菌的空间分布特征

基金项目: 

新疆农业大学草业科学国家重点学科开放课题(XJCYB-2013-03)

摘要: 为了揭示新疆盐生植物根围AM真菌的空间分布特征,本研究以新疆北疆3个典型区域的盐生植物芦苇(Phragmites australis)为研究对象,分别在0-10、10-20、20-30、30-40和40-50 cm 5个土层采集根围土壤样品,研究AM真菌的空间分布及其土壤因子的相关性。结果表明,盐碱化是AM真菌在盐碱土中空间分布的重要限制因子,但AM真菌可与芦苇共生,AM真菌各项指标在盐渍地中的分布具有显著的空间特征。AM真菌侵染率、侵染强度在3个样地间存在显著差异(P<0.05),并随土层加深呈降低趋势,其最大值均出现在0-10 cm土层;孢子密度随土层深度增加而降低,最高值出现在0-20 cm土层;孢子密度与土壤pH、电导率、速效K呈极显著负相关(P<0.01);AM真菌侵染率、侵染强度、菌丝丰度、丛枝丰度与速效K、速效P呈极显著正相关(P<0.01),侵染强度、菌丝丰度和丛枝丰度与有机质呈极显著负相关(P<0.01)。本研究结果对利用盐生植物AM真菌资源,促进盐渍化草地植被恢复和生态重建方面具有一定的价值。

 

English

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  • 收稿日期:  2015-11-02
  • 发布日期:  2016-07-19

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