Effect of arbuscular mycorrhizal fungi and Hippophae rhamnoides on the improvement of the dump of open-pit coal mine in the eastern grassland

Authors

MIAO Chunguang, Planning and Development Department of Coal Industry Operation and Management Center of China Energy Investment Corporation, Beijing 100011, China
YANG Huihui, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology(Beijing), Beijing 100083, China
BI Yinli, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology(Beijing), Beijing 100083, China; Institute of Ecological Environment Restoration in Mine Areas of West China, Xi'an University of Science and Technology, Xi'an 710054, ChinaFollow
SONG Ziheng, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology(Beijing), Beijing 100083, China
GUO Nan, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology(Beijing), Beijing 100083, China

Abstract

The land barren, grassland degradation and difficult ecological restoration are serious in the open-pit mining area of eastern China. The symbiosis between arbuscular mycorrhizal fungi(AMF) and Hippophae rhamnoides and the effect of mycorrhiza on the development of Hippophae rhamnoides root system and the improvement of soil in the dumping site were analyzed. It was found that the plant height and crown width of inoculated AMF(+M) were increased by 20% and 21%, respectively. The root length and root volume of +M were 1.46 and 1.97 times of CK, respectively. The content of Glomalin in the rhizosphere soil of Hippophae rhamnoides in +M was 3.22 mg/g, which was significantly higher than 2.16 mg/g in CK. The phosphatase activity of +M was 1.76 times that of CK, and the content of available phosphorus was similar. The results show that it is feasible to use microorganism to promote soil improvement and ecological restoration of the open-pit mine dump.

Keywords

eastern grassland, open-pit mine dump, arbuscular mycorrhizal fungi, Hippophae rhamnoide, soil improvement

DOI

10.3969/j.issn.1001-1986.2021.02.025

Recommended Citation

MIAO Chunguang, YANG Huihui, BI Yinli, et al. (2021) "Effect of arbuscular mycorrhizal fungi and Hippophae rhamnoides on the improvement of the dump of open-pit coal mine in the eastern grassland," Coal Geology & Exploration: Vol. 49: Iss. 2, Article 26.
DOI: 10.3969/j.issn.1001-1986.2021.02.025
Available at: https://cge.researchcommons.org/journal/vol49/iss2/26

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