Fencing reshapes spatial patterns of nutrient pools during peak-growing-season in the Tibetan grasslands: Spatial heterogeneity of C and N pools and elevational homogeneity of P pools
文献类型：期刊论文
| 作者 | Qin, Yong1,2; Zhang, Xianzhou2; Fu, Gang2 |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2025-04-01 |
| 卷号 | 381页码:109442 |
| 关键词 | Fencing Carbon nitrogen and phosphorus pools Spatial patterns Alpine grassland Tibetan Plateau |
| ISSN号 | 0167-8809 |
| DOI | 10.1016/j.agee.2024.109442 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Fencing can play an important role in the protection of carbon (C), nitrogen (N) and phosphorus (P) pools in grassland ecosystems. However, these effects on a wide range of climatic and geographic scales remain unclear. This study investigated 37 pairs of fencing and grazing sample sites in alpine grasslands across an 1800-km transect on the Tibetan Plateau to evaluate the effects of fencing on C, N, and P pools of aboveground plants, roots, soil and the entire ecosystem. Fencing increased the space average values of C, N and P pools of aboveground plants and roots by 11.07 %-38.33 % and the soil C pools by 11.05 % at 0-10 cm. Compared with 0-10 and 20-30 cm, the spatial average values of belowground roots C, N, and P pools at 10-20 cm were more sensitive to fencing. The effects of fencing on C, N and P pools of aboveground plants in alpine deserts were higher than those in alpine meadows and alpine steppes. Fencing heterogenized the spatial patterns of C and N pools of the ecosystem while homogenized the elevational pattern of the P pool. With increasing longitude, the responses of C, N, and P pools of the ecosystem to fencing were enhanced. Conversely, with increasing latitude and elevation, the effects of fencing on C, N, and P pools decreased. Therefore, the effects of fencing on the C, N, and P pools of the alpine grasslands were related to soil depth and grassland type. The sensitivities of nutrient pools of aboveground plants, roots and soil to fencing were different. Ecosystem P pool homogenization caused by fencing potentially disrupted phosphorus flow and ecological processes, and thus weakened ecosystem functionality. The effects of fencing on ecosystem nutrient pools were not always positive, which suggested that fencing should not be everywhere, at least for the restoration of C, N, and P pools. |
| URL标识 | 查看原文 |
| WOS关键词 | CARBON ; ECOSYSTEMS ; STOCKS |
| WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001392096100001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/211256]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Fu, Gang |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Qin, Yong,Zhang, Xianzhou,Fu, Gang. Fencing reshapes spatial patterns of nutrient pools during peak-growing-season in the Tibetan grasslands: Spatial heterogeneity of C and N pools and elevational homogeneity of P pools[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2025,381:109442. |
| APA | Qin, Yong,Zhang, Xianzhou,&Fu, Gang.(2025).Fencing reshapes spatial patterns of nutrient pools during peak-growing-season in the Tibetan grasslands: Spatial heterogeneity of C and N pools and elevational homogeneity of P pools.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,381,109442. |
| MLA | Qin, Yong,et al."Fencing reshapes spatial patterns of nutrient pools during peak-growing-season in the Tibetan grasslands: Spatial heterogeneity of C and N pools and elevational homogeneity of P pools".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 381(2025):109442. |
入库方式： OAI收割
来源：地理科学与资源研究所
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