| In order to study the mechanism of arbuscular mycorrhizal fungi in repair of damaged plant root system, analyse the microbial reclamation ecological effect of arbuscular mycorrhizal fungi in the open field conditions, this paper through the indoor design quantitative root damage experiment and in the open field vaccinating on amorpha fruticosa various dynamic monitoring analysis method carries out combined detail study. Firstly, on the basis of referring to extensive foreign and domestic literature, analysis present research situation of arbuscular mycorrhizal repair damaged root, summarizes the ecological and physiological processes and characteristics, and discusses the the problems and application prospects in the mining area ecological restoration. According to the coal mining subsidence area plant roots exist mechanical strain of the actual circumstance, design the in/out matrix root damage mode test for arbuscular mycorrhizal fungi on plant root repair damaged mechanism research; the results show that mycorrhizal fungi can reduce the negative influence on mycorrhizal-plant symbionts. Secondly, in the open field conditions for various inoculation mycorrhizal fungi on the microbial reclamation field application, the system analyzed in the long period in2009-2012; and then bacteria and control area of various aboveground biomass, underground hypha network and physicochemical properties of soil changes in law, using remote sensing data and the field soil and plant sample collection and analysis method of combining the dynamic analysis of the microbial reclamation ecological effect, the introduction of principal component analysis to microbial reclamation ecological effect was evaluated, the results show vaccinating arbuscular mycorrhizal fungi is helpful to the vegetation restoration and ecological reconstruction in mining area. Finally, some suggestions are presented on the future direction of the arbuscular mycorrhizal fungi research. |
PDF Full Text Request