Precipitation alleviates microbial C limitation but aggravates N and P limitations along a 3000-km transect on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Pan, Junxiao2; Zhang, Xinyu1,2; Liu, Shuang1,2; Liu, Ning1,2; Liu, Mengjie1,2; Chen, Chen1,2; Zhang, Xinyuan1,2; Niu, Shuli1,2; Wang, Jinsong2 |
| 刊名 | CATENA
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 247页码:108535 |
| 关键词 | Alpine grasslands Enzymatic stoichiometry Microbial nutrient limitations Precipitation gradient Vector model |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2024.108535 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Soil microbial resource limitations, which reflect the imbalance between microbial demand and soil resource supply, critically control microbial metabolism and biogeochemical processes. However, disentangling the confounding effects of climatic, edaphic, plant, and microbial factors on microbial resource limitation at broad spatial scales remains challenging. Here, we used the ecoenzymatic vector model to investigate patterns of soil microbial carbon (C) and nitrogen/phosphorus (N/P) limitation across alpine grasslands along a 3000-km aridity gradient on the Tibetan Plateau. We further linked these patterns to plant characteristics (e.g., plant biomass, coverage, and root biomass), soil nutrient properties (e.g., total soil C, N, and P), nutrient stoichiometry (e.g., C: N, C:P, and N:P ratios, and microbial attributes (e.g., microbial biomass C and N) to identify key drivers of variation in microbial resource limitation. Our results highlight a predominant co-limitation by N and P nutrients in microbial metabolism for alpine grasslands, with a notable shift from relative N limitation in alpine deserts to P limitation in alpine meadows, coinciding with the increasing precipitation. Furthermore, soil nutrient availability and stoichiometry were more influential than plant and microbial factors in shaping patterns of microbial relative N/P limitation. In contrast, microbial relative C limitation decreased with increasing precipitation from alpine deserts to meadow ecosystems, primarily driven by soil nutrient availability and plant characteristics. These findings underscore distinct patterns and drivers of microbial C versus N/P limitation in alpine ecosystems, advancing our understanding of microbial-mediated soil C, N, and P recycling. |
| URL标识 | 查看原文 |
| WOS关键词 | EXTRACELLULAR ENZYME-ACTIVITY ; ECOENZYMATIC STOICHIOMETRY ; NUTRIENT ACQUISITION ; EXTRACTION METHOD ; SOIL ; NITROGEN ; TEMPERATURE ; COMMUNITIES ; RHIZOSPHERE ; FUMIGATION |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001395349300001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/211292]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Wang, Jinsong |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Pan, Junxiao,Zhang, Xinyu,Liu, Shuang,et al. Precipitation alleviates microbial C limitation but aggravates N and P limitations along a 3000-km transect on the Tibetan Plateau[J]. CATENA,2024,247:108535. |
| APA | Pan, Junxiao.,Zhang, Xinyu.,Liu, Shuang.,Liu, Ning.,Liu, Mengjie.,...&Wang, Jinsong.(2024).Precipitation alleviates microbial C limitation but aggravates N and P limitations along a 3000-km transect on the Tibetan Plateau.CATENA,247,108535. |
| MLA | Pan, Junxiao,et al."Precipitation alleviates microbial C limitation but aggravates N and P limitations along a 3000-km transect on the Tibetan Plateau".CATENA 247(2024):108535. |
入库方式： OAI收割
来源：地理科学与资源研究所
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