首页|Diversity of soil microorganisms in natural Populus euphratica forests in Xinjiang, northwestern China
Diversity of soil microorganisms in natural Populus euphratica forests in Xinjiang, northwestern China
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To better understand the distribution of soil microorganisms in Populus euphratica forests in Xin-jiang, northwestern China, we studied and compared the populations and numbers of bacteria, fungi and actino-mycetes in the soil at four different age stages of natural P. euphratica forests, i.e., juvenile forests, middle-aged for-ests, over-mature forests and degraded forests. Results showed that there were clear differences in the amount of microorganism biomass and composition rates across the four forest stages. Dominant and special microorgan-isms were present in each of the four different soil layers.The vertical distribution showed that the microorganism biomass decreased with increasing soil depth. The popu-lation of microorganisms was the lowest at 31-40 cm of soil depth. The microorganisms consisted of bacteria, actinomycetes, as well as fungi. Bacteria were the chief component of microorganisms and were widely distribu-ted, but fungi were scarce in some soil layers. Aspergillus was the dominant genus among the 11 genera of fungi isolated from the soil in different age stages of P. euphra-tica forests.
Institute of Health & Environment,Wenzhou Medical College,Wenzhou 325035,China
Key Laboratory for Silviculture and Conservation,Ministry of Education,Beijing Forestry University,Beijing 100083,China
Forest Pest Control Station of Bayingolin,Mongolia Autonomous District of Xinjiang,Korla 841000,China
Forest Pest Control Station of Xinjiang Uygur Autonomous Region,Urumqi 830000,China
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国家科技攻关项目Program for Changjiang Scholars and Innovative Research Teams in UniversitiesScientific Research Foundation of Wenzhou Medical Collegeauthors like to thank Dr. Pengfei LU from the Institute of Health & Environment of Wenzhou Medical College for his valuable
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