Ecosystem responses dominate the trends of annual gross primary productivity over terrestrial ecosystems of China during 2000-2020
文献类型：期刊论文
| 作者 | Zhu, Xian-Jin; Yu, Gui-Rui; Chen, Zhi; Zhang, Wei-Kang; Han, Lang28; Wang, Qiu-Feng; Qi, Hua; Yang, Meng; Liu, Zhao-Gang; Dou, Xiao-Jun |
| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
 |
| 出版日期 | 2023-12-15 |
| 卷号 | 343页码:109758 |
| 关键词 | Carbon cycles Eddy covariance Terrestrial ecosystems Machine learning Ecosystem responses |
| DOI | 10.1016/j.agrformet.2023.109758 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | The annual gross primary productivity (AGPP) forms the foundation for terrestrial carbon sink. AGPP trends stem from the combined impacts of environmental factors and ecosystem responses to those factors. These responses include model structure modifications altering both the structural properties (represented by leaf area index) and the functional properties (represented by per leaf AGPP). Understanding the contributions of ecosystem responses to AGPP trends is crucial for accurately assessing spatiotemporal variations in AGPP, which aids in effective carbon management. Based on eddy covariance measurements of AGPP in China, we generated AGPP during 2000-2020 by constructing yearly AGPP mapping schemes from site measurements and analyzed AGPP trends. The roles of ecosystem responses and their pathways were further elucidated by employing analysis of variance. Results showed that the total AGPP in China was 7.39 +/- 0.62 PgC yr(-1), with an increasing trend of 0.095 PgC yr(-2). This increase primarily sourced from the total AGPP in Subtropical Evergreen Needleleaf Forest. AGPP trends spatially decreased from east to west, with most regions showing positive values. Structural and functional properties contributed similarly to AGPP trends, with varying regional contributions. The structural properties played a dominant role in north regions while the functional properties were more important in south and west regions. Ecosystem responses similarly determined the trends of ecosystem properties, which decreased from west to east. Ecosystem responses thus dominated AGPP trends through the structural properties in north regions but through the functional properties in south and west regions. Therefore, Chinese AGPP exhibited a spatially varied increasing trend during 2000-2020. Ecosystem responses dominated AGPP trends through divergent properties across regions. Our results highlight the significanc of ecosystem responses in AGPP trends and their divergent pathways across regions. This also provides independent data support for quantifying regional carbon budgets. |
| WOS关键词 | CARBON-DIOXIDE UPTAKE ; INTERANNUAL VARIABILITY ; CLIMATE VARIABILITY ; TIBETAN PLATEAU ; VEGETATION ; NET ; SATELLITE ; EVAPOTRANSPIRATION ; FLUXES ; MODEL |
| WOS研究方向 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:001096141700001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/199438]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China 2.Liaoning Panjin Wetland Ecosyst Natl Observat & Re, Shenyang 110866, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 4.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China 5.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Peoples R China 6.Chinese Acad Sci, Inst Subtrop Agr, Changsha 410125, Peoples R China 7.Inner Mongolia Agr Univ, Hohhot 010018, Peoples R China 8.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China 9.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China 10.Qingdao Agr Univ, Qingdao 266109, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Xian-Jin,Yu, Gui-Rui,Chen, Zhi,et al. Ecosystem responses dominate the trends of annual gross primary productivity over terrestrial ecosystems of China during 2000-2020[J]. AGRICULTURAL AND FOREST METEOROLOGY,2023,343:109758. |
| APA | Zhu, Xian-Jin.,Yu, Gui-Rui.,Chen, Zhi.,Zhang, Wei-Kang.,Han, Lang.,...&Zhu, Zhi-Lin.(2023).Ecosystem responses dominate the trends of annual gross primary productivity over terrestrial ecosystems of China during 2000-2020.AGRICULTURAL AND FOREST METEOROLOGY,343,109758. |
| MLA | Zhu, Xian-Jin,et al."Ecosystem responses dominate the trends of annual gross primary productivity over terrestrial ecosystems of China during 2000-2020".AGRICULTURAL AND FOREST METEOROLOGY 343(2023):109758. |
入库方式： OAI收割
来源：地理科学与资源研究所
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