KMS Institute of soil and water conservation Chinese Academy of Sciences
| Response of soil microbial communities and nitrogen thresholds of Bothriochloa ischaemum to short-term nitrogen addition on the Loess Plateau | |
Zhang, Jiaoyang2,3; Ai, Zemin2,3 ; Liang, Chutao2,3; Wang, Guoliang1,2; Xue, Sha1,2; Xue, S (reprint author), Inst Soil & Water Conservat, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China.
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| 文章类型 | Article |
| 2017 | |
| 发表期刊 | GEODERMA
 |
| ISSN | 0016-7061 |
| 通讯作者邮箱 | xuesha100@163.com |
| 卷号 | 308期号:308页码:112-119 |
| 摘要 | China is becoming the world's third largest area of nitrogen (N) deposition, which is attracting increasing attention. Understanding how N affects soil microbial communities and determining the thresholds for the effect of N on microorganisms and ecosystems are critical. We investigated the changes to the characteristics of microbial communities after two years of adding N to soil with the perennial grass Bothriochloa ischaemwn, simulating N deposition on the Loess Plateau, at four rates of N addition (0 (CK), 2.5 (N1), 5.0 (N2), and 10.0 (N3) g N m(-2)y(-1)) and a control BL (bare land without vegetation or N addition). Soil microbial biomass carbon (C) and N contents and microbial activity increased in N1. The lowest rate of N addition (Ni) increased soil total, bacterial, fungal, and actinomycetic phospholipid fatty acid (PLFA) contents, but excessive N addition decreased bacterial and actinomycetic PLFA contents. N addition did not alter microbial-community structure. The effect of N addition on soil microbial properties was influenced by soil C content (SOC and DOC), increased the diversity and evenness of the microbial community and decreased the diversity of the bacterial community. Soil microbial biomass and activity increased in N1, ivhich was beneficial to the stability of the soil ecosystem on the plateau and defined the threshold of N addition for microorganisms and the ecosystem. More attention should thus be paid to depositional level represented by N2 (5 g N m(-2) y(-1)), which might limit microbial communities. The microbial community was inhibited, the diversity decreased, and the ecological system was affected by the level represented over N2. |
| 关键词 | Nitrogen Addition Microbial Community The Loess Plateau Thresholds |
| 学科领域 | Agriculture |
| DOI | 10.1016/j.geoderma.2017.08.034 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 出版地 | AMSTERDAM |
| 语种 | 英语 |
| WOS记录号 | WOS:000413282100013 |
| 出版者 | ELSEVIER SCIENCE BV |
| 项目资助者 | Natural Science Foundation of China [41371510, 41771557, 41471438, 41671513]; West Young Scholars Project of The Chinese Academy of Sciences [XAB2015A05] ; Natural Science Foundation of China [41371510, 41771557, 41471438, 41671513]; West Young Scholars Project of The Chinese Academy of Sciences [XAB2015A05] |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | sbir.nwafu.edu.cn/handle/361005/7875 |
| 专题 | 水保所科研产出--SCI_2017--SCI |
| 通讯作者 | Xue, S (reprint author), Inst Soil & Water Conservat, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China. |
| 作者单位 | 1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, PR China 2.Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, PR China 3.University of Chinese Academy of Sciences, Beijing 100049, PR China |
| 推荐引用方式 GB/T 7714 | Zhang, Jiaoyang,Ai, Zemin,Liang, Chutao,et al. Response of soil microbial communities and nitrogen thresholds of Bothriochloa ischaemum to short-term nitrogen addition on the Loess Plateau[J]. GEODERMA,2017,308(308):112-119. |
| APA | Zhang, Jiaoyang,Ai, Zemin,Liang, Chutao,Wang, Guoliang,Xue, Sha,&Xue, S .(2017).Response of soil microbial communities and nitrogen thresholds of Bothriochloa ischaemum to short-term nitrogen addition on the Loess Plateau.GEODERMA,308(308),112-119. |
| MLA | Zhang, Jiaoyang,et al."Response of soil microbial communities and nitrogen thresholds of Bothriochloa ischaemum to short-term nitrogen addition on the Loess Plateau".GEODERMA 308.308(2017):112-119. |
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