| Soil remediation after inoculated with arbuscular mycorrhizal fungi on the ratio of weathered coal and loess in the mining area of western China |
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| DOI：10.7606/j.issn.1000-7601.2016.02.21 |
| Key Words: arbuscular mycorrhizal fungi weathered coal loess maize soil remediation |
| Author Name | Affiliation | | YU Miao | State Key Laboratory of Coal Resource and Safe Mining, China University of Mining and Technology, Beijing 100083, China
College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China | | LI Shao-peng | State Key Laboratory of Coal Resource and Safe Mining, China University of Mining and Technology, Beijing 100083, China
College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China | | BI Yin-li | State Key Laboratory of Coal Resource and Safe Mining, China University of Mining and Technology, Beijing 100083, China
College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China | | DENG Mu-biao | State Key Laboratory of Coal Resource and Safe Mining, China University of Mining and Technology, Beijing 100083, China
College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China | | QIU Lang | State Key Laboratory of Coal Resource and Safe Mining, China University of Mining and Technology, Beijing 100083, China
College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China | | HONG Tian-cai | State Key Laboratory of Coal Resource and Safe Mining, China University of Mining and Technology, Beijing 100083, China
College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China |
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| Abstract: |
| Based on the characteristics of poor soil, lack of effective nutrient and difficulty in crop growth in western mining area of China, a pot experiment method was carried out in this study to have weathered coal and loess mixed in different proportions as the trial matrix and employ maize as the test. The effects of arbuscular mycorrhizal fungi (AMF) on maize growth and the improvement of different mixed matrix were investigated to find out the best ratio between weathered coal and loess. The results showed that inoculation with AMF promoted the growth of maize and the absorption of mineral elements. Mycorrhizal ecological effect became maximized when the weathered coal and loess mass ratio reached 1∶1. At the same time, the above ground dry weight and leaf color values of maize were 4.61 g, 41.17, respectively, and nitrogen, phosphorus, and potassium accumulations were 53.01 mg, 7.15 mg, 79.42 mg per plant respectively. When the weathered coal and loess mass ratio was 1∶1, the density of hyphae was 4.91 m·g-1, and the mycorrhizal root infection rate of maize reached maximum. With the increase of weathering coal ratio, the glomalin and the acid phosphatase (ACP) in maize rhizosphere soil were gradually increased as well. In conclusion, the synergy of AMF and weathered coal promoted the growth of the crops, improved the rhizosphere soil microenvironment, and implemented the enhancement of soil fertility in the gully region. |
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