Effects of surface cracks on the rhizospheric microhabitat of Artemisia ordosica in subsidence area caused by coal mining
| Autor: | Fei Gao, Tao Du, Yin-Li Bi, Wei-Ling Lv |
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| Rok vydání: | 2013 |
| Předmět: |
Rhizosphere
biology business.industry Microorganism Coal mining Energy Engineering and Power Technology Biomass Subsidence Soil science Geotechnical Engineering and Engineering Geology biology.organism_classification complex mixtures Microbial population biology Artemisia Geotechnical engineering business Water content |
| Zdroj: | Journal of Coal Science and Engineering (China). 19:231-236 |
| ISSN: | 1866-6566 1006-9097 |
| Popis: | The effects of surface cracks caused by underground coal mining on microhabitat in the rhizosphere of Artemisia ordosias were studied based on field investigation and sample analysis. The results show that the amounts of microorganisms, enzyme activity and water content in soil vary with the biomass of A. ordosias, and that the account exhibits in an order of large A. ordosias>medium A. ordosias>small A. ordosias. Surface cracks apparently decrease microbial quantities and enzymatic activities, and change the composition and structure of microbial community in the rhizosphere of A. ordosias. Surface cracks reduce water content and electrical conductivity, enhance the R/S (ratio of root and soil) of water content, electrical conductivity and pH value, and raise the content of Na and Pb in rhizosphere soil of A. ordosicas. It can be concluded that the disturbance of underground coal mining on the microhabitat in the rhizosphere of A. ordosica is obvious in the early days. |
| Databáze: | OpenAIRE |
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