Evaluation of impact of climate extremes on vegetation change in Southwest China considering time-lag effect
文献类型：期刊论文
| 作者 | Qi, Gang2,3; Cong, Nan1; Qiu, Tangzhen2,3; Rong, Lei2,3; Ren, Ping2,3; Xiao, Jiangtao2,3 |
| 刊名 | GLOBAL ECOLOGY AND CONSERVATION
 |
| 出版日期 | 2025-04-01 |
| 卷号 | 58页码:e03497 |
| 关键词 | Climate extremes NDVI Time lag Vegetation change Southwest China |
| DOI | 10.1016/j.gecco.2025.e03497 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | The occurrence of extreme climate phenomena has markedly increased due to the rising trend in global temperatures, leading to significant changes in plant distribution and behavior. This trend is particularly evident in Southwest China, a region highly sensitive to climate shifts and frequently exposed to extreme climate events. However, the impact of the time-lag effect on vegetation is often overlooked. In this study, daily temperature (maximum and minimum) and precipitation data were used to calculate nine extreme climate indices. These indices were then employed to evaluate their impact on vegetation dynamics in the region. Subsequently, MODIS NDVI data were used to explore the correlations and time-lag effects between these extreme climate indices and vegetation changes. The analysis revealed significant annual and monthly growth rates in the regional average NDVI from 2000 to 2020, with R2 determination coefficients of 0.06 and 0.94, respectively. Most extreme climate indices exhibited a strong positive correlation with NDVI on a monthly scale. A significant correlation was observed between extreme precipitation index and vegetation index in croplands and grasslands. There was a significant 0-2month lag in the correlation between NDVI and extreme precipitation indices, whereas the correlation between NDVI and extreme temperature indices was more pronounced, with a lag of approximately 4-6 months. Ultimately, our study identified a stronger correlation between precipitation indices and NDVI, highlighting the necessity for increased attention to intense precipitation in the southwest to protect vegetation growth in the region. These findings provide a robust scientific basis for the proactive management of vegetation in Southwest China in response to future extreme climate events. |
| URL标识 | 查看原文 |
| WOS关键词 | TERRESTRIAL VEGETATION ; TEMPERATE GRASSLANDS ; RESPONSES ; DYNAMICS ; DROUGHT ; MODIS ; NDVI ; PLATEAU ; GROWTH |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001429334200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/213243]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Cong, Nan; Xiao, Jiangtao |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, CAS Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China 2.Sichuan Normal Univ, Sch Geog & Resources Sci, Chengdu 610066, Peoples R China; 3.Sichuan Normal Univ, Key Lab Land Resources Evaluat & Monitoring Southw, Minist Educ, Chengdu 610066, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Qi, Gang,Cong, Nan,Qiu, Tangzhen,et al. Evaluation of impact of climate extremes on vegetation change in Southwest China considering time-lag effect[J]. GLOBAL ECOLOGY AND CONSERVATION,2025,58:e03497. |
| APA | Qi, Gang,Cong, Nan,Qiu, Tangzhen,Rong, Lei,Ren, Ping,&Xiao, Jiangtao.(2025).Evaluation of impact of climate extremes on vegetation change in Southwest China considering time-lag effect.GLOBAL ECOLOGY AND CONSERVATION,58,e03497. |
| MLA | Qi, Gang,et al."Evaluation of impact of climate extremes on vegetation change in Southwest China considering time-lag effect".GLOBAL ECOLOGY AND CONSERVATION 58(2025):e03497. |
入库方式： OAI收割
来源：地理科学与资源研究所
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