Variation of net primary productivity and its drivers in China’s forests during 2000-2018

作     者：Yuhe Ji Guangsheng Zhou Tianxiang Luo Yakir Dan Li Zhou Xiaomin Lv Yuhe Ji;Guangsheng Zhou;Tianxiang Luo;Yakir Dan;Li Zhou;Xiaomin Lv

作者机构：State Key Laboratory of Severe Weather(LASW)Chinese Academy of Meteorological ScienceBeijing 100081China Key Laboratory of Alpine Ecology and BiodiversityInstitute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China Earth&Planetary SciencesWeizmann Institute of Science76100 RehovotIsrael. 

出 版 物：《Forest Ecosystems》 (森林生态系统（英文版）)

年 卷 期：2020年第7卷第2期

页      面：190-200页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 

基　　金：supported by the National Natural Science Fundation of China(No.41571175,31661143028) the special funds for basic research and operation from the Chinese Academy of Meteorological Science(2017Y003) 

主　　题：Net primary production(NPP) Forest ecosystem annual precipitation NPP model Fluctuation Variability 

摘      要：Background:Net primary productivity(NPP)in forests plays an important role in the global carbon ***,it is not well known about the increase rate of China’s forest NPP,and there are different opinions about the key factors controlling the variability of forest ***:This paper established a statistics-based multiple regression model to estimate forest NPP,using the observed NPP,meteorological and remote sensing data in five major forest *** fluctuation values of NPP and environment variables were extracted to identify the key variables influencing the variation of forest NPP by correlation ***:The long-term trends and annual fluctuations of forest NPP between 2000 and 2018 were *** results showed a significant increase in forest NPP for all five forest ecosystems,with an average rise of 5.2 gC·m-2·year-1 over *** 90%of the forest area had an increasing NPP range of 0-161 gC·m-2·*** NPP had an interannual fluctuation of 50-269 gC.m-2·year-1 for the five major forest *** evergreen broadleaf forest had the largest *** variability in forest NPP was caused mainly by variations in precipitation,then by temperature ***:All five forest ecosystems in China exhibited a significant increasing NPP along with annual fluctuations evidently during *** variations in China’s forest NPP were controlled mainly by changes in precipitation.