Climate and grazing effects on productivity allocation in alpine grasslands of the Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Zhang, Zhaomin2,3; Niu, Ben2,3; Zhang, Xianzhou2,3; He, Yongtao2,3; Zhou, Xiaoli2,3; Wei, Da1,3 |
| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
 |
| 出版日期 | 2025-09-15 |
| 卷号 | 372页码:110720 |
| 关键词 | Climate change Net primary productivity allocation Alpine grasslands Qinghai-Tibet Plateau Human activities |
| ISSN号 | 0168-1923 |
| DOI | 10.1016/j.agrformet.2025.110720 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The allocation of net primary productivity (NPP) between aboveground and belowground components (ANPP and BNPP) is essential for comprehending the dynamics of ecosystems processes and functions. In the alpine grasslands on the Qinghai-Tibet Plateau (QTP), the optimal proportion of BNPP (fBNPP) in NPP holds critical importance for productivity dynamics and the rational management of grass resources due to high sensitivity to climate and human-induced changes. However, direct evidence from field research regarding NPP components and fBNPP remains relatively scarce and fragmented. Here, we compiled 704 field observations from the existing studies and published alpine grasslands NPP data to investigate the distribution patterns of NPP allocation and explore the effects of climate and human activities on NPP allocation in the alpine grasslands. Results showed that the alpine grasslands of the QTP had an average fBNPP value of 0.65, with a wide variation ranging from 0.15 to 0.99. Warming and grazing significantly altered the trends of productivity components in response to changes in temperature and precipitation. Our results showed that both warming and grazing increase fBNPP-by 18.01 % under warming and 3.74 % under grazing-through different mechanisms: warming enhanced both ANPP and BNPP, but BNPP showed a greater degree of change. However, grazing reduced both ANPP and BNPP and had a stronger suppressive effect on ANPP. Generally, the spatial fBNPP of alpine grasslands on the QTP exhibited a trend of increasing initially and then decreasing with rising temperatures, differing from the linearly-decreasing pattern on a global scale. Our results emphasized the unique complexity of alpine grasslands NPP allocation on the QTP in response to environmental changes. This study provided significant evidence and theoretical support for the accurate assessment of productivity dynamics and the rational utilization of resources of alpine grasslands. |
| URL标识 | 查看原文 |
| WOS关键词 | NET PRIMARY PRODUCTIVITY ; PHALARIS ARUNDINACEA L. ; BIOMASS ALLOCATION ; CARBON BALANCE ; INTERANNUAL VARIABILITY ; TEMPERATURE SENSITIVITY ; SEMIARID ECOSYSTEMS ; SPECIES TURNOVER ; PLANT DIVERSITY ; USE EFFICIENCY |
| WOS研究方向 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001526828900001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/215360]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Niu, Ben |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, 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; 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang, Zhaomin,Niu, Ben,Zhang, Xianzhou,et al. Climate and grazing effects on productivity allocation in alpine grasslands of the Qinghai-Tibet Plateau[J]. AGRICULTURAL AND FOREST METEOROLOGY,2025,372:110720. |
| APA | Zhang, Zhaomin,Niu, Ben,Zhang, Xianzhou,He, Yongtao,Zhou, Xiaoli,&Wei, Da.(2025).Climate and grazing effects on productivity allocation in alpine grasslands of the Qinghai-Tibet Plateau.AGRICULTURAL AND FOREST METEOROLOGY,372,110720. |
| MLA | Zhang, Zhaomin,et al."Climate and grazing effects on productivity allocation in alpine grasslands of the Qinghai-Tibet Plateau".AGRICULTURAL AND FOREST METEOROLOGY 372(2025):110720. |
入库方式： OAI收割
来源：地理科学与资源研究所
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