Investigating the temporal lag and accumulation effect of climatic factors on vegetation photosynthetic activity over subtropical China
文献类型：期刊论文
| 作者 | Liang, Juanzhu1; Han, Xueyang1; Zhou, Yuke3; Yan, Luyu2 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 166页码:112406 |
| 关键词 | Vegetation photosynthesis Subtropical vegetation Solar-induced chlorophyll fluorescence (SIF) Climate change Time-lag effect Time-accumulation effect Carbon cycle |
| DOI | 10.1016/j.ecolind.2024.112406 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Monitoring vegetation photosynthesis in China's subtropical regions using remote sensing is challenging because of the complex ecosystems and climate variability. Previous studies often pay less attention on the influence of multiple climatic factors on the temporal effects (lag and accumulation) of vegetation photosynthesis, thereby underestimating their impact. This study utilizes a dataset comprising Solar-induced chlorophyll fluorescence (SIF) data (GOSIF product), MODIS Land Cover product (MCD12C1), and various climatic variables. Analytical methods including Theil-Sen Median trend analysis, the Mann-Kendall test, partial correlation analysis, and the optimal parameter-based geographical detector (OPGD) model were employed to explore the temporal dynamics of subtropical vegetation SIF responses to climatic factors and to identify their climate drivers in subtropical China. The study findings indicate that (1) vegetation photosynthesis, as indicated by SIF, exhibited an increasing trend in the majority of Chinese subtropical regions, which constitute over 80 % of the study area, with particularly pronounced enhancements in the southern and central western parts of the Chinese subtropics. (2) Soil moisture primarily exhibits lag effects on SIF, particularly in evergreen needleleaf forests, deciduous broadleaf forests, and mixed forests, whereas temperature does not exhibit significant temporal effects. Solar radiation and vapor pressure deficits impact SIF through both lag and accumulation effects. Under the lag and accumulation effects, the proportion of significant correlations between climatic factors and vegetation SIF increases by 36.71 % similar to 43.8 %, excluding temperature. (3) Temperature is the dominant factor affecting vegetation SIF, particularly in the evergreen needleleaf forest. Interactions between climatic factors have a significantly stronger influence on SIF than individual factors. Notably, the explanatory power of the vapor pressure deficit increases substantially when it interacts with other factors. Studying the lag and accumulation effects of climatic factors on photosynthesis aids in accurately predicting vegetation responses to climate change, thereby improving the accuracy of global carbon cycle models and guiding the development of carbon sequestration management strategies. |
| WOS关键词 | RESPONSES ; VARIABILITY ; TRANSITION |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:001284592600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206897]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Zhou, Yuke; Yan, Luyu |
| 作者单位 | 1.Fuzhou Univ, Acad Digital China Fujian, Fuzhou 350002, Fujian, Peoples R China 2.China Natl Environm Monitoring Ctr, State Environm Protect Key Lab Qual Control Enviro, Beijing 100012, Peoples R China 3.Chinese Acad Sci, Inst Geog & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Juanzhu,Han, Xueyang,Zhou, Yuke,et al. Investigating the temporal lag and accumulation effect of climatic factors on vegetation photosynthetic activity over subtropical China[J]. ECOLOGICAL INDICATORS,2024,166:112406. |
| APA | Liang, Juanzhu,Han, Xueyang,Zhou, Yuke,&Yan, Luyu.(2024).Investigating the temporal lag and accumulation effect of climatic factors on vegetation photosynthetic activity over subtropical China.ECOLOGICAL INDICATORS,166,112406. |
| MLA | Liang, Juanzhu,et al."Investigating the temporal lag and accumulation effect of climatic factors on vegetation photosynthetic activity over subtropical China".ECOLOGICAL INDICATORS 166(2024):112406. |
入库方式： OAI收割
来源：地理科学与资源研究所
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