Diverse chronic responses of vegetation aboveground net primary productivity to climatic changes on Three-River Headwaters region
文献类型：期刊论文
| 作者 | Zhai, Dechao1,3; Gao, Xizhang2,3; Li, Baolin1,2,3; Yuan, Yecheng3; Li, Ying1,3; Liu, Wei1,3; Xu, Jie1,3 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 139页码:13 |
| ISSN号 | 1470-160X |
| 关键词 | Vegetation chronic change trend Climate change Normalized Difference Vegetation Index Plant developmental stages Spatial model |
| DOI | 10.1016/j.ecolind.2022.108925 |
| 通讯作者 | Li, Baolin(libl@lreis.ac.cn) |
| 英文摘要 | The ecological responses of vegetation to climatic variables along a spatial gradient can be used as guidelines for chronic ecosystem response predictions under global climate change. The chronic responses of aboveground net primary productivity (ANPP) to climatic factors on the Three-river Headwaters (TRH) region were assessed for major vegetation types at the herbage developmental stages using the geographical detectors model, the Normalized Difference Vegetation Index from remote sensing images, and precipitation and air temperature datasets from 2000 to 2019. The results indicated that precipitation was the dominant driver for alpine meadows and steppes, while the impact of temperature on alpine steppes was more evident than that in alpine meadows, and alpine shrubs were more responsive to warming changes. This was possibly because shallower root systems and larger plant leaf area promote the responses of ANPP to precipitation for alpine meadows and steppes, and dormant buds higher from the ground facilitate the impacts of temperature for alpine shrubs. Grasslands also demonstrated differentiated responses to climatic factors at different developmental stages. Precipitation during the previous withering (September-October), pre-growing season (March-April), and vegetative growth (May-June) stages were more influential for ANPP variations. In contrast, ANPP during the reproductive period from July to August exhibited a weaker response to climatic controls. This was possibly attributed to the bud bank replenishment in fall and spring, the largest biomass growth rates in vegetative growth stage, and the nonstructural carbohydrates transferred from mots in reproductive stage for perennial herbaceous plants. An elevated temperature, combined with no significant change in precipitation on the TRH may lead to a decrease in ANPP in alpine meadows but alpine shrub expansion, resulting in a reduced supply of palatable forage sources and bringing challenges to grassland management. |
| WOS关键词 | QINGHAI-TIBETAN PLATEAU ; GROUND BUD BANKS ; THERMAL-ACCLIMATION ; TUNDRA VEGETATION ; ARCTIC TUNDRA ; ANTHROPOGENIC ACTIVITIES ; ANNUAL PRECIPITATION ; MERISTEM LIMITATION ; SPECIES COMPOSITION ; ELECTRON-TRANSPORT |
| 资助项目 | National Natural Science Foundation of China[U2243206] ; National Key Research and Development Plan of China[2016YFC0500205] ; Ministry of Science and Technology, China |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000860751800002 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Plan of China ; Ministry of Science and Technology, China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/184911]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Li, Baolin |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhai, Dechao,Gao, Xizhang,Li, Baolin,et al. Diverse chronic responses of vegetation aboveground net primary productivity to climatic changes on Three-River Headwaters region[J]. ECOLOGICAL INDICATORS,2022,139:13. |
| APA | Zhai, Dechao.,Gao, Xizhang.,Li, Baolin.,Yuan, Yecheng.,Li, Ying.,...&Xu, Jie.(2022).Diverse chronic responses of vegetation aboveground net primary productivity to climatic changes on Three-River Headwaters region.ECOLOGICAL INDICATORS,139,13. |
| MLA | Zhai, Dechao,et al."Diverse chronic responses of vegetation aboveground net primary productivity to climatic changes on Three-River Headwaters region".ECOLOGICAL INDICATORS 139(2022):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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