| 高寒湿地和草甸退化及恢复对土壤微生物碳代谢功能多样性的影响 |
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| 引用本文： | 李飞,刘振恒,贾甜华,李珊珊,白彦福,郭灿灿,王惟惟,孔猛,张涛,周华坤,贾宇,尚占环. 高寒湿地和草甸退化及恢复对土壤微生物碳代谢功能多样性的影响[J]. 生态学报, 2018, 38(17): 6006-6015 |
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| 作者姓名： | 李飞 刘振恒 贾甜华 李珊珊 白彦福 郭灿灿 王惟惟 孔猛 张涛 周华坤 贾宇 尚占环 |
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| 作者单位： | 兰州大学生命科学学院草地农业生态系统国家重点实验室;甘肃省玛曲县畜牧林业局草原站;兰州大学草地农业科技学院;青海省寒区恢复生态学重点实验室中国科学院西北高原生物研究所 |
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| 基金项目： | 国家重点研发计划课题（2016YFC0501906-2）；国家自然科学基金项目（41671508）；青海省创新平台建设专项（2017-ZJ-Y20） |
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| 摘 要： | 为研究高寒湿地、草甸的退化及恢复与土壤微生物碳代谢功能多样性的关系,以及影响土壤微生物碳代谢功能多样性的关键因素,利用BIOLOG Eco微平板法,分析了甘肃玛曲地区5类(湿地、沼泽化草甸、高寒草甸、退化草甸、人工恢复草甸) 14个退化与恢复样地的土壤微生物对单一碳源的利用情况。结果表明,从湿地到沙化草地的逐渐退化过程中,草甸的土壤微生物群落代谢活性差异显著;主要是由于在湿地干化过程中,微生物活性逐渐升高,沼泽草甸土壤微生物活性最高;随着草甸不断退化,微生物活性逐渐降低,沙化草地最低;而人工补播恢复使土壤微生物活性有所增加,表明退化对微生物碳代谢功能多样性造成显著影响,人工恢复措施在一定程度上提高了土壤微生物活性。聚合物类(吐温40、吐温80、环状糊精、肝糖)、氨基酸类及碳水化合物类是土壤微生物主要利用的碳源。冗余分析结果显示,土壤的碳氮比、含水量、有机碳、全氮、容重、氮磷比、p H及植被覆盖度是影响土壤微生物碳代谢功能多样性的关键因子。因此,可用土壤碳代谢功能多样性变化评价高寒湿地及草甸的退化和恢复及其变化程度。
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| 关 键 词： | 退化草甸 微生物多样性 BIOLOG Eco微平板法 土壤理化性质 植被 |
| 收稿时间： | 2017-06-16 |
| 修稿时间： | 2018-04-01 |
Functional diversity of soil microbial community carbon metabolism with the degradation and restoration of alpine wetlands and meadows |
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| LI Fei,LIU Zhenheng,JIA Tianhu,LI Shanshan,BAI Yanfu,GUO Cancan,WANG Weiwei,KONG Meng,ZHANG Tao,ZHOU Huakun,JIA Yu and SHANG Zhanhuan. Functional diversity of soil microbial community carbon metabolism with the degradation and restoration of alpine wetlands and meadows[J]. Acta Ecologica Sinica, 2018, 38(17): 6006-6015 |
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| Authors: | LI Fei LIU Zhenheng JIA Tianhu LI Shanshan BAI Yanfu GUO Cancan WANG Weiwei KONG Meng ZHANG Tao ZHOU Huakun JIA Yu SHANG Zhanhuan |
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| Affiliation: | State Key Laboratory of Grassland Agro-ecosystems, Life Sciences College of Lanzhou University, Lanzhou 730000, China,Grassland Station, Livestock and Forest Bureau of Gansu Maqu County, Maqu 747300, China,State Key Laboratory of Grassland Agro-ecosystems, Life Sciences College of Lanzhou University, Lanzhou 730000, China,College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730070, China,State Key Laboratory of Grassland Agro-ecosystems, Life Sciences College of Lanzhou University, Lanzhou 730000, China,State Key Laboratory of Grassland Agro-ecosystems, Life Sciences College of Lanzhou University, Lanzhou 730000, China,College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730070, China,State Key Laboratory of Grassland Agro-ecosystems, Life Sciences College of Lanzhou University, Lanzhou 730000, China,State Key Laboratory of Grassland Agro-ecosystems, Life Sciences College of Lanzhou University, Lanzhou 730000, China,Qinghai Provincial Key Laboratory of Ecology Restoration in Cold Region, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China,State Key Laboratory of Grassland Agro-ecosystems, Life Sciences College of Lanzhou University, Lanzhou 730000, China and State Key Laboratory of Grassland Agro-ecosystems, Life Sciences College of Lanzhou University, Lanzhou 730000, China;Qinghai Provincial Key Laboratory of Ecology Restoration in Cold Region, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China |
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| Abstract: | |
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| Keywords: | degraded meadows microbial diversity BIOLOG Eco microplate soil physical and chemical properties vegetation |
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