大气和海洋科学快报（英文版）2020，Vol.13Issue(1)：8-15,8.
气候变化,土地利用变化和二氧化碳浓度升高对青藏高原总初级生产力的影响
Contributions of climate change, land use change and CO2 to changes in the gross primary productivity of the Tibetan Plateau
摘要
Abstract
The ecosystems on the Tibetan Plateau (TP) are highly vulnerable to climate change,rising CO2 concentration,and land-use and land-cover change (LULCC),but their contributions to changes in the gross primary productivity (GPP) of the TP are not clearly understood.In this study,the role of these three factors on the interannual variations (IAVs) and trends of the TP's GPP were investigated using 12 terrestrial biosphere models.The ensemble simulations showed that climate change can explain most of the changes in the GPP,while the direct effect of LULCC and rising CO2 (mainly fertilization effect) contributed 10％ and-14％ to the mean GPP values,37％ and-20％ to the IAV,and 52％ and-24％ to the GPP's trend,respectively.The LULCC showed higher contributions to the significant positive trend in the annual GPP of the TP.However,the results from different model simulations showed that considerable uncertainties were associated with the effects of LULCC on the GPP of the TP.关键词
多模式集合/总初级生产力/CO2/土地利用和土地覆盖变化/青藏高原Key words
Multi-model ensemble/gross primary productivity/CO2/land-use and land-cover change/Tibetan Plateau引用本文复制引用
LUO Xin,JIA Binghao,LAI Xin..气候变化,土地利用变化和二氧化碳浓度升高对青藏高原总初级生产力的影响[J].大气和海洋科学快报（英文版）,2020,13(1):8-15,8.基金项目
This research was supported by the National Key R & D Program of China [grant number 2018YFC1506602],the Key Research Program of Frontier Sciences,Chinese Academy of Sciences [grant number QYZDY-SSW-DQC012],and the National Natural Science Foundation of China [grant numbers 41830967 and 41575096]. （）
