Impacts of hydrometeorological controls on vegetation productivity: Evidence from satellite observations and reanalysis
文献类型：期刊论文
| 作者 | Liu, Yangxiaoyue1,2,3; Wang, Yang3; Yang, Yaping1,3; Jiang, Hao2; Jing, Wenlong2 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 161页码:111976 |
| 关键词 | Leaf area index Gross primary productivity Vapor pressure deficit Evapotranspiration Precipitation Soil moisture |
| DOI | 10.1016/j.ecolind.2024.111976 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Climate change notably boosts terrestrial hydraulic redistribution pattern, which could directly affect the spatiotemporal evolution characteristics of vegetation productivity. However, the spatiotemporal evolution pattern of long-term hydrometeorological controls of vegetation productivity is still not fully understood. This paper comprehensively explored the impacts of hydrometeorological controls on leaf area index (LAI) and gross primary productivity (GPP) in China during 1982 - 2015 using both satellite observations and reanalysis. Vapor pressure deficit (VPD), evapotranspiration (ET), precipitation (PT), and soil moisture (SM) were used as representative indicators during investigation. The dynamics of LAI and GPP displayed increasing trends on the whole. And significantly changes mostly occurred in eastern and southern China, accompanied by moderate to dense vegetation coverage. An accelerated increasing trend for LAI could be observed since September 2003 ( +0.175 per decade), while the growth rate of GPP ( +16.76 g C/m 2 per decade) basically maintained stable. In terms of hydrometeorological controls, VPD and ET showed consistently increasing trend and SM presented falling trend in the context of warming climate. Through analysis of feature importance index established by Random Forest, the importance of VPD, SM, and PT obviously increased as latitude decreases, which implied the high sensitivity of vegetation in semi-humid\humid regions to water availability. Additionally, divergence between LAI and GPP can be found in southern Tibet Plateau region and coastal regions, which provides compelling evidence that in the case of high LAI, increasing LAI could weaken the improvement effect on GPP. Findings of this study is expected to promote the understanding of long-term vegetation responses to hydrometeorological variations. |
| WOS关键词 | SURFACE SOIL-MOISTURE ; CANOPY CHLOROPHYLL CONTENT ; GROSS PRIMARY PRODUCTION ; LATENT-HEAT FLUX ; LEAF-AREA INDEX ; ALPINE MEADOW ; TEMPERATURE ; CHINA ; PRECIPITATION ; SENSITIVITY |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:001222395400001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/205195]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Liu, Yangxiaoyue |
| 作者单位 | 1.Jiangsu Ctr Collaborat Innovat Geog Informat Resou, Nanjing 210023, Peoples R China 2.Guangzhou Inst Geog, Guangdong Acad Sci, Guangzhou 510070, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yangxiaoyue,Wang, Yang,Yang, Yaping,et al. Impacts of hydrometeorological controls on vegetation productivity: Evidence from satellite observations and reanalysis[J]. ECOLOGICAL INDICATORS,2024,161:111976. |
| APA | Liu, Yangxiaoyue,Wang, Yang,Yang, Yaping,Jiang, Hao,&Jing, Wenlong.(2024).Impacts of hydrometeorological controls on vegetation productivity: Evidence from satellite observations and reanalysis.ECOLOGICAL INDICATORS,161,111976. |
| MLA | Liu, Yangxiaoyue,et al."Impacts of hydrometeorological controls on vegetation productivity: Evidence from satellite observations and reanalysis".ECOLOGICAL INDICATORS 161(2024):111976. |
入库方式： OAI收割
来源：地理科学与资源研究所
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