| 添加豆科植物对弃耕地土壤微生物多样性的影响 |
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| 引用本文： | 秦燕燕,李金花,王刚,李文金.添加豆科植物对弃耕地土壤微生物多样性的影响[J].兰州大学学报(自然科学版),2009,45(3). |
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| 作者姓名： | 秦燕燕 李金花 王刚 李文金 |
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| 作者单位： | 兰州大学干旱与草地生态教育部重点实验室,兰州,730000 |
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| 基金项目： | 国家自然科学基金，教育部长江学者和创新团队发展计划 |
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| 摘 要： | 采用氯仿熏蒸法和BIOLOG检测法,分别研究了黄土高原地区弃耕地在演替早期人工添加豆科植物紫花苜蓿(Medicago sativa)、草木樨(Melilotus suaveolen)、沙打旺(Astragalus huangheensis)后土壤微生物生物量和生物多样性的变化.结果表明:添加豆科植物后,土壤微生物量碳(MBC)显著增加(除草木樨外);MBC质量分数与土壤有机碳质量分数的比率、土壤微生物在BIOLOG微平板上的平均每孔颜色变化率和碳源利用能力及其代谢多样性指数均显著提高.
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| 关 键 词： | 豆科植物 弃耕地 土壤微生物群落 土壤微生物生物量 功能多样性 黄土高原 |
Effects of sowing legume species on functional diversity of soil microbial communities in abandoned fields |
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| QIN Yan-yan,LI Jin-hua,WANG Gang,LI Wen-jin.Effects of sowing legume species on functional diversity of soil microbial communities in abandoned fields[J].Journal of Lanzhou University(Natural Science),2009,45(3). |
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| Authors: | QIN Yan-yan LI Jin-hua WANG Gang LI Wen-jin |
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| Institution: | Key Laboratory of Arid and Grassland Ecology with the Ministry of Education;Lanzhou University;Lanzhou 730000;China |
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| Abstract: | The effects of sowing legume species(Medicago sativa,Melilotus suaveolen and Astragalus huangheensis) on soil microbial biomass carbon and functional diversity were studied in the abandoned fields of the Loess Plateau.Soil microbial biomass carbon was measured by chloroform suffocating and functional diversity was measured by BIOLOG.The results show that there are higher soil microbial biomass carbon (except for Melilotus suaveolen) and soil microbial biomass/organic carbon after sowing legume species in ab... |
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| Keywords: | legume species abandoned field soil microbial community functional diversity Loess Plateau |
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