露天排土场接种AM真菌对不同组合植物生长及土壤改良影响  

Effects of AM Fungi Inoculation in Open Dump on the Growth of Different Combinations of Plants and Soil Improvement

作　　者：胡钦程 解琳琳 李梦琪 毕银丽[1] HU Qincheng;XIE Linlin;LI Mengqi;BI Yinli(School of Geosciences and Surveying Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)地球科学与测绘工程学院,北京100083

出　　处：《太原理工大学学报》2022年第5期838-845,共8页Journal of Taiyuan University of Technology

基　　金：国家重点研发计划资助项目(2016YFC0501106)。

摘　　要：以北电胜利露天矿区排土场为研究区,布设了柠条单作、柠条沙打旺混作、沙打旺单作、沙打旺紫花苜蓿混作和紫花苜蓿单作5种不同的种植模式,采用接菌(Funneliformis mosseae)和对照2种处理,运用经典统计学分析了植物根系形态、土壤理化性质及相关酶活性。结果表明,柠条沙打旺混作和沙打旺紫花苜蓿混作种植模式下接菌植物总根长较对照增长203.74%、83.84%,说明在混作种植模式接菌更适应矿区排土场的生长环境,提高了植物根系总根长。柠条沙打旺混作模式下接菌土壤有机质为22.92 g/kg,较对照增加89.58%,柠条沙打旺混作种植模式下接菌促进了土壤有机质的积累,有利于矿区排土场土壤的改良和培肥。柠条沙打旺混作和沙打旺紫花苜蓿混作种植模式均不同程度地高于其他单作种植模式下的土壤脲酶、易提取球囊霉素和总球囊霉素含量。野外混作种植模式下接菌可以有效促进植物生长,改善土壤质地,生态效应显著,对维持矿区生态系统稳定的持续性具有重要意义。By taking the dump site of Nortel Shengli open-pit mine as the research area,5 different planting modes of Caragana korshinskii monocropping,Caragana korshinskii and Astragalus adsurgens mixed cropping,Astragalus adsurgens monocropping,Astragalus adsurgens and alfalfa(Medicago sativa)mixed cropping,and alfalfa monocropping were set up.With inoculation(Funneliformis mosseae)and control as two treatments,classical statistics was used to analyze plant root morphology,soil physicochemical properties,and related enzyme activities.The results show that the total root length of the inoculated plants under the modes of Caragana korshinskii and Astragalus adsurgens mixed cropping and Astragalus adsurgens and alfalfa mixed cropping increased by 203.74%and 83.84%,respectively,compared with the control,indicating that inoculation in mixed cropping mode is more suitable for the growth environment of mining dump,and the total root length of plant root system is increased.The soil organic matter inoculated under the mixed cropping mode of Caragana korshinskii and Astragalus adsurgens was 22.92 g/kg,an increase of 89.58%compared with the control.The inoculation under the mixed cropping mode of Caragana korshinskii and Astragalus adsurgens promoted the accumulation of soil organic matter,which was beneficial to the soil improvement of mining area.The contents of soil urease,easily extractable glomalin-related soil protein,and total glomalin-related soil protein were higher to different degrees in the modes of Caragana korshinskii and Astragalus adsurgens mixed cropping and Astragalus adsurgens and alfalfa mixed cropping than in other monocropping modes.Inoculation under mixed cropping mode in the field can effectively promote plant growth,improve soil texture,and has significant ecological effects,which is of great significance to maintaining the stability of mining ecosystem.

关 键 词：丛枝菌根真菌 种植模式 野外大田试验 矿区排土场 矿区生态系统 

分 类 号：Q939.96[生物学—微生物学]