Effects of nitrogen deposition on the carbon budget and water stress in Central Asia under climate change

作     者：HAN Qifei XU Wei LI Chaofan HAN Qifei;XU Wei;LI Chaofan

作者机构：School of Geographical SciencesNanjing University of Information Science&TechnologyNanjing 210044China 

出 版 物：《Journal of Arid Land》 (干旱区科学（英文版）)

年 卷 期：2024年第16卷第8期

页      面：1118-1129页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 09[农学] 0903[农学-农业资源与环境] 0706[理学-大气科学] 0713[理学-生态学] 

基　　金：funded by the National Key Research and Development Program of China (2023YFC3206803) the National Natural Science Foundation of China (42271493) 

主　　题：carbon dynamics climate change grassland ecosystems nitrogen deposition water stress index 

摘      要：Atmospheric deposition of nitrogen(N)plays a significant role in shaping the structure and functioning of various terrestrial ecosystems ***,the magnitude of N deposition on grassland ecosystems in Central Asia still remains highly *** this study,a multi-data approach was adopted to analyze the distribution and amplitude of N deposition effects in Central Asia from 1979 to 2014 using a process-based denitrification decomposition(DNDC)*** showed that total vegetation carbon(C)in Central Asia was 0.35(±0.09)Pg C/a and the averaged water stress index(WSI)was 0.20(±0.02)for the whole *** N deposition led to an increase in the vegetation C of 65.56(±83.03)Tg C and slightly decreased water stress in Central *** of this study will expand both our understanding and predictive capacity of C characteristics under future increases in N deposition,and also serve as a valuable reference for decision-making regarding water resources management and climate change mitigation in arid and semi-arid areas globally.