补连塔煤矿采陷区丛枝菌根真菌种类分布及土壤因子的研究

发布时间：2018-03-05 05:33

本文选题：丛枝菌根真菌　切入点：土壤因子　出处：《内蒙古大学》2015年硕士论文　论文类型：学位论文

【摘要】：丛枝菌根真菌(arbuscular mycorrhizal fungi, AMF)对植物有广泛的侵染性,80%以上的陆生植物都可形成这种菌根。本文以补连塔矿的采陷区作为研究样地,以AMF和土壤因子为研究对象,研究采陷区AMF种类分布,探索随着采陷年限、季节变化以及地表裂缝的产生,AMF和土壤因子间的变化规律。为进一步筛选优质AMF菌种资源,开展矿区土地复垦与植被恢复提供理论依据。主要研究结果如下：1.采陷区共采集了9科18属20种植物,菌根植物共16种,比例为80%。其中,萝呮科1属1种、藜科3属3种未受AMF侵染。2.采陷区共分离出AMF 5属13种。地表裂缝区的AMF种属少于非地表裂缝区,球囊霉属在优势种占有较大比例。地表裂缝的产生,降低了AMF孢子密度和物种丰富度。3.土壤微生物群落中所占比例从大到小依次为细菌、放线菌、真菌。地表裂缝的产生使土壤微生物数量减少。4.采煤沉陷及地表裂缝的产生影响了土壤磷酸酶活性和土壤理化性质。
[Abstract]:Arbuscular mycorrhizal fungii (AMF) can form mycorrhizal mycorrhizal mycorrhizal mycorrhizae of more than 80% of terrestrial plants. In this paper, the subsidence area of Bulianta Mine is taken as the study sample, and AMF and soil factors are taken as research objects. The distribution of AMF species in mining subsidence area was studied, and the regularity of variation between AMF and soil factors along with the years of mining subsidence, seasonal variation, and the occurrence of surface cracks was explored. In order to further screen the high quality AMF strain resources, The main results are as follows: 1. A total of 20 species of mycorrhizal plants belonging to 18 genera and 9 families were collected in the mining area, and the proportion of mycorrhizal plants was 80%. 3 genera and 3 species of Chenopodiaceae were not infected by AMF. 13 species belonging to 5 genera of AMF were isolated from the subsidence area. The species of AMF in the surface fissure area were less than those in the non-surface fissure area. AMF spore density and species richness. 3. The proportion of soil microbial community from large to small is followed by bacteria, actinomycetes, actinomycetes, actinomycetes, actinomycetes, actinomycetes, Fungi. The number of soil microorganism was reduced by the surface fissure. 4. The soil phosphatase activity and soil physical and chemical properties were affected by the coal mining subsidence and the surface fissure.
【学位授予单位】：内蒙古大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S154.3

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