会议论文详细信息
3rd International Conference on Advances in Environment Research
Ecosystem Resilience to Drought and Temperature Anomalies in the Mekong River Basin
生态环境科学;地球科学
Na-U-Dom, T.^1,2 ; García, M.^2,3 ; Mo, X.^1,4
Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing
100101, China^1
Sino-Danish College, University of Chinese Academy of Sciences, Beijing
100049, China^2
Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby
2800, Denmark^3
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing
100049, China^4
关键词: Auto regressive models;    Ecological stability;    Ecosystem resilience;    Extreme weather events;    Gridded temperatures;    Mekong river basins;    Temperature anomaly;    Vegetation greenness;   
Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/68/1/012012/pdf
DOI  :  10.1088/1755-1315/68/1/012012
学科分类:环境科学(综合)
来源: IOP
PDF
【 摘 要 】

Climate change is leading to an increasing in the frequency and intensity of extreme weather events, which significantly affect ecosystems stability. In this study, ecological stability metrics in response to wet/dry events and warm/cold events on vegetation greenness were assessed using an auto-regressive model of NDVI in the Mekong River basin (around 759,000 km2) where large ecological and climatic gradients exist. Gridded temperature, and the Global Standard Precipitation Evaporation Index (SPEI) and antecedent NDVI were used as model predictors. The forest in north Laos was more resilient to the temperate and wet/dry anomalies events than other regions in the basin. Drought reduced green biomass in north Laos, northeast Thailand and Myanmar, but in these tropical climate regions' the vegetation biomass was also more responsive by higher temperatures. Vegetation in northeast Thailand, Cambodia and the Mekong delta were less sensitive to the temperature anomalies effect compared to other part of Mekong River basin. The map of resistance and resilience metrics can help to determine the most vulnerable regions to extreme events for policy makers.

【 预 览 】
附件列表
Files Size Format View
Ecosystem Resilience to Drought and Temperature Anomalies in the Mekong River Basin 891KB PDF download
  文献评价指标  
  下载次数:37次 浏览次数:33次