四川农业大学学报 ›› 2007, Vol. 25 ›› Issue (03): 300-305.doi: 10.16036/j.issn.1000-2650.2007.03.021

• 研究论文 • 上一篇    下一篇

鄂尔多斯固定、半固定沙丘固沙植物根际微生物区系研究

王天龙1,2, 朱天辉1, 朴春根2, 汪来发2, 刘朝霞3   

  1. 1. 四川农业大学 林学园艺学院, 四川 雅安 625014;
    2. 中国林业科学研究院 森林生态环境与保护研究所, 北京 100091;
    3. 内蒙古鄂尔多斯林业治沙科学研究所, 内蒙古 东胜 017000
  • 收稿日期:2007-03-13 出版日期:2007-09-30 发布日期:2017-03-04
  • 基金资助:
    国家科技基础条件平台建设项目"林业微生物资源标准化整理、整合及共享试点"(2005DKA21207)。

Studies on Sand-fixing Plants Rhizosphere Microflora in Fixed Dune and Semifixed Dune in Erdos, Inner Mongolia

WANG Tian-long1,2, ZHU Tian-hui1, PIAO Chun-gen2, WANG Lai-fa2, LIU Zhao-xia3   

  1. 1. College of Forestry and Horticulture, Sichuan Agricultural University, Yaan 625014, Sichuan, China;
    2. Research Institute of Forest Ecology, Environment and Protection, CAF, Beijing 100091;
    3. Erdos Institute of Forestry and Sand Control in Inner Mongolia, Dongsheng 017000, Inner Mongolia, China
  • Received:2007-03-13 Online:2007-09-30 Published:2017-03-04

摘要: 研究了鄂尔多斯4种典型固沙植物柠条、沙柳、杨柴、油蒿在固定沙丘和半固定沙丘两种立地条件下根际土壤微生物数量、组成的季相变化,结果表明固定沙丘和半固定沙丘根际微生物数量为好气性细菌>放线菌>真菌。秋季好气性细菌数量最大。分析了这4种植物根际和根面好气性细菌和芽孢杆菌季相变化规律及原因,结果表明半固定沙丘向固定沙丘演变过程中,好气性细菌数量表现为上升趋势。根际芽孢杆菌和内生芽孢杆菌的数量随季节变化,秋季数量均达到最大。

关键词: 鄂尔多斯, 固沙植物, 微生物区系, 固定沙丘, 半固定沙丘

Abstract: This paper studies the aspect change of number and com position to rhizosphere soil microbes of Salix psammophila, Hedysarum mongolicum, Caragana korshinskii and Artemisia ordosica in fixed dune and semifixed dune, which are four typical sand-fixing plants in Erdos, Inner Mongolia. The results shows that the number of rhizosphere soil microbes in fixeddune and semifixed dune are aerophile bacteria > actinomyces > fungi. The number of aerophile bacteria was the most. The paper analyzed the change rule and cause. The results shows that the number of aerophile bacteria become uptrend in the evolvement process from semifixed dune to fixed dune. The number of rhizosphere Bacillus and endophytic bacteria change with seasons, and both reach to the largest in autumn.

Key words: Erdos, sand-fixing plant, microflora, fixed dune, semifixed dune

中图分类号: 

  • S154.37