文献类型：期刊文献

英文题名：Regulation of biophysical drivers on carbon and water fluxes over a warm-temperate plantation in northern China

作者：Yu, Peiyang[1] Zhang, Yingjie[1] Liu, Peirong[1] Zhang, Jinsong[2,3] Xing, Wanli[4] Tong, Xiaojuan[1] Zhang, Jingru[1] Meng, Ping[2,3]

第一作者：Yu, Peiyang

通信作者：Zhang, YJ[1];Tong, XJ[1]

机构：[1]Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat State Forestry Ad, Beijing 100091, Peoples R China;[3]Henan Xiaolangdi Forest Ecosyst Natl Observat & Re, Jiyuan 454650, Peoples R China;[4]Beijing City Univ, Acad Arts & Design, Beijing 101309, Peoples R China

年份：2024

卷号：907

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20234314961043);Scopus(收录号：2-s2.0-85174709324);WOS:【SCI-EXPANDED(收录号:WOS:001102481900001)】；

基金：Acknowledgements This study was sponsored by the National Key R & D Program of China (2020YFA0608101) and the National Natural Science Foundation of China (32271875; 31872703) .

语种：英文

外文关键词：Biome-BGC; Gross primary productivity; Evapotranspiration; Water use efficiency; Plantation

摘要：Plantations have great potential for carbon sequestration and play a vital role in the water cycle. However, it is challenging to accurately estimate the carbon and water fluxes of plantations, and the impact of biophysical drivers on the coupling of carbon and water fluxes is not well understood. Thus, we modified the phenology module of the Biome-BGC model and optimized the parameters with the aim of simulating the gross primary productivity (GPP), evapotranspiration (ET) and water use efficiency (WUE) of a warm-temperate plantation in northern China from 2009 to 2020. Photosynthetically active radiation (PAR) showed significant positive cor-relations on GPP and WUE during the first stage of the growing season (S1: from early April to late July). Active accumulated temperature (Taa) mainly controlled the changes in GPP and ET during the second stage (S2: be-tween the end of July and early November). Throughout the growing season, soil water content dominated daily GPP and WUE, whereas Taa regulated ET. The optimized Biome-BGC model performed better than the original model in simulating GPP and ET. Compared with the values simulated by the original model, root mean square error decreased by 7.89 % and 15.97 % for the simulated GPP and ET, respectively, while the determination coefficient increased from 0.77 to 0.81 for simulated GPP and from 0.51 to 0.62 for simulated ET. The results of this study demonstrated that the optimized model more accurately assessed carbon sequestration and water consumption in plantations.