Local and teleconnected temperature effects of afforestation and vegetation greening in China  

作　　者：Yue Li Shilong Piao Anping Chen Philippe Ciais Laurent Z.X.Li 

机构地区：[1]Sino-French Institute for Earth System Science,College of Urban and Environmental Sciences,Peking University,Beijing 100871,China [2]Key Laboratory of Alpine Ecology and Biodiversity,Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100085,China [3]Center for Excellence in Tibetan Earth Science,Chinese Academy of Sciences,Beijing 100085,China [4]Department of Biology,Colorado State University,Fort Collins,CO 80523,USA [5]Laboratoire des Sciences du Climat et de l’Environnement/Institut Pierre Simon Laplace,Commissariat a`l’Energie Atomique et´aux Energies´Alternatives–CNRS–Universite de´Versailles Saint-Quentin,Universite´Paris-Saclay,F-91191 Gif-sur-Yvette,France [6]Laboratoire de Met´eorologie´Dynamique,Centre National de la Recherche Scientifique,Sorbonne Universite,´Ecole Normale Superieure,Ecole´Polytechnique,75252 Paris,France

出　　处：《National Science Review》2020年第5期897-912,共16页国家科学评论（英文版）

基　　金：This work was supported by the National Key Research and Development Program of China(2018YFC1507704);the National Natural Science Foundation of China(41861134036 and 41530528);the National Youth Top-notch Talent Support Program in China and the 111 Project(B14001).P.Ciais acknowledges support from the French National Research Agency with the project China-Trend-Stream.

摘　　要：Afforestation in China provides carbon sequestration and prevents soil erosion,but its remote impacts on climate in other regions via the coupling of forest energy fluxes with atmospheric circulation are largely unknown.Here,we prescribe inventory-based forest cover change and satellite-observed leaf area index from 1982 to 2011 in a coupled land-atmosphere model to simulate their biophysical climate effects.Both local and global surface air temperatures show a seasonal contrast in response to past vegetation cover expansion over China:a phenomenon we primarily attribute to a variation of seasonality of vegetation greening.A large cooling in spring results in concurrent decreases in geopotential height over China and zonal wind over Mongolia,causing a dipole structure in the upper troposphere over the Arctic.This accounts for∼58%of simulated spring warming over the Russian Arctic and∼61%of simulated spring cooling over the Canadian Artic.Our results imply that spring vegetation dynamics in China may affect climate in northern high latitudes.

关 键 词：AFFORESTATION vegetation greening China biophysical climate effect coupled land-atmosphere model 

分 类 号：F326.2[经济管理—产业经济] P467[天文地球—大气科学及气象学]