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- Title
十八河铜尾矿库坝面细菌群落时空动态及其驱动力.
- Authors
李毳; 景炬辉; 刘晋仙; 柴宝峰
- Abstract
The maintaining mechanism of community diversity is the core of community ecology. The mine tailing is a good field for studying on the underlying mechanism of community diversity, as a kind of original bare land with heavy metal pollution, where the physicochemical characteristics of soil change with the restoration periods. We examined the driving forces for bacterial community diversity based on the investigation of edaphic factors, plant community, and bacterial communities in Shibahe copper mine tailing, Shanxi. The results showed that nutrient contents in soil increased with restoration periods. The seasonal dynamics of soil nutrient in different restoration time were different. Shannon diversity and richness of bacterial community showed an increasing trend, indicating community stability was improved with restoration. Influenced by plant community, the seasonal changes of those indices differed with restoration. Results from the RDA analysis showed that the diversity and structure of bacterial communities were determined by environmental factors (edaphic, plant and heavy metals). Results from the structure equation models further confirmed that soil nutrients (TC, TN, NO3--N, NO2-N), plant community, and soil enzyme activities jointly drove bacterial community assembly on the copper mine tailings.
- Publication
Yingyong Shengtai Xuebao, 2018, Vol 29, Issue 6, p1975
- ISSN
1001-9332
- Publication type
Academic Journal
- DOI
10.13287/j.1001-9332.201806.040