Plant growth and their root development after inoculation of arbuscular mycorrhizal fungi in coal mine subsided areas

Yinli Bi; Yanxu Zhang; Hui Zou

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Plant growth and their root development after inoculation of arbuscular mycorrhizal fungi in coal mine subsided areas

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Coal mining often cause serious land degradation,soil erosion,and desertification affecting growth of the local vegetation,especially the roots.Arbuscular mycorrhizal fungi (AMF) inoculation is considered a potential biotechnological tool for mined soil remediation because mycorrhizal fungi could improve plant growth environment,especially under adverse conditions due to their good symbiosis.A field experiment was conducted to study the ecological effects of AMF (Funneliformis mosseae,Rhizophagus intraradices) on the growth of Amygdalus pedunculata Pall.and their root development in the regenerated mining subsidence sandy land.The reclamation experiment included four treatments:inoculation of Funneliformis mosseae (F.m),inoculation of Rhizophagus intraradices (R.i),combined inoculation of F.m and R.i and non-inoculated treatment.Root mycorrhizal colonization,plant height,crown width,soil moisture,root morphology and certain soil properties were assessed.The results showed that AMF improved the shoot and root growth of Amygdalus pedunculata Pall.,and significantly increased root colonization after 1 year of inoculation.Available phosphorus content,activities of phosphatase as well as electrical conductivity in soil rhizosphere of all the three inoculation treatments were higher than that of the non-inoculated treatment.AMF increased the quantity of bacteria and fungi in soil rhizosphere compared with the non-inoculated treatment.Our study indicates that revegetation with AMF inoculum could influence plant growth and root development as well as soil properties,suggesting that AMF inoculation can be effective method for further ecological restoration in coal mine subsided areas.

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《国际煤炭科学技术学报（英文）》 |2018年第001期|47-53|共7页
作者
Yinli Bi; Yanxu Zhang; Hui Zou;
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State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology(Beijing), Beijing 100083, China;

State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology(Beijing), Beijing 100083, China;

State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology(Beijing), Beijing 100083, China;

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Plant growth and their root development after inoculation of arbuscular mycorrhizal fungi in coal mine subsided areas

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