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| DOI | 10.1371/journal.pone.0242643 |
| Soil microbial community responses to short-term nitrogen addition in China's Horqin Sandy Land | |
| Yayi, Niu; Yulong, Duan; Yuqiang, Li; Xuyang, Wang; Yun, Chen; Lilong, Wang | |
| 通讯作者 | Duan, YL (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Peoples R China. ; Duan, YL (通讯作者)，Chinese Acad Sci, Naiman Desertificat Res Stn, Northwest Inst Ecoenvironm & Resources, Tongliao, Peoples R China. |
| 发表日期 | 2021 |
| ISSN | 1932-6203 |
| 卷号 | 16期号:5 |
| 英文摘要 | Anthropogenic nitrogen (N) addition has increased soil nutrient availability, thereby affecting ecosystem processes and functions in N-limited ecosystems. Long-term N addition decreases plant biodiversity, but the effects of short-term N addition on soil microbial community is poorly understood. The present study examined the impacts of short-term N addition (NH4NO3) on these factors in a sandy grassland and semi-fixed sandy land in the Horqin Sandy Land. We measured the responses of soil microbial biomass C and N; on soil beta -1,4-glucosidase (BG) and beta -1,4-N-acetylglucosaminidase (NAG) activity; and soil microflora characteristics to N additions gradient with 0 (control), 5 (N5), 10 (N10), and 15 (N15) g N m(-2) yr(-1). The soil microbial biomass indices, NAG activity, and soil microflora characteristics did not differ significantly among the N levels, and there was no difference at the two sites. The competition for N between plants and soil microbes was not eliminated by short-term N addition due to the low soil nutrient and moisture contents, and the relationships among the original soil microbes did not change. However, N addition increased BG activity in the N5 and N10 additions in the sandy grassland, and in the N5, N10, and N15 additions in the semi-fixed sandy land. This may be due to increased accumulation and fixation of plant litter into soils in response to N addition, leading to increased microbial demand for a C source and increased soil BG activity. Future research should explore the relationships between soil microbial community and N addition at the two sites. |
| 关键词 | EXTRACELLULAR ENZYME-ACTIVITYELEVATED CO2N DEPOSITIONBIOMASS CGRASSLANDFERTILIZATIONNUTRIENTLITTERCARBONBACTERIAL |
| 语种 | 英语 |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000664631600004 |
| 来源期刊 | PLOS ONE
 |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/253600 |
| 作者单位 | [Yayi, Niu; Yulong, Duan; Yuqiang, Li; Xuyang, Wang; Yun, Chen; Lilong, Wang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Peoples R China; [Yayi, Niu; Yuqiang, Li; Yun, Chen] Univ Chinese Acad Sci, Beijing, Peoples R China; [Yayi, Niu; Yulong, Duan; Yuqiang, Li; Xuyang, Wang; Yun, Chen; Lilong, Wang] Chinese Acad Sci, Naiman Desertificat Res Stn, Northwest Inst Ecoenvironm & Resources, Tongliao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yayi, Niu,Yulong, Duan,Yuqiang, Li,et al. Soil microbial community responses to short-term nitrogen addition in China's Horqin Sandy Land[J]. 中国科学院西北生态环境资源研究院,2021,16(5). |
| APA | Yayi, Niu,Yulong, Duan,Yuqiang, Li,Xuyang, Wang,Yun, Chen,&Lilong, Wang.(2021).Soil microbial community responses to short-term nitrogen addition in China's Horqin Sandy Land.PLOS ONE,16(5). |
| MLA | Yayi, Niu,et al."Soil microbial community responses to short-term nitrogen addition in China's Horqin Sandy Land".PLOS ONE 16.5(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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