长江流域不同气候分区生长季植被总初级生产力对极端气候变化的时空响应研究

Study on Spatio-temporal response of Total Primary Productivity of vegetation to extreme Climate change in different Climatic growing seasons in the Yangtze River Basin

本文将长江流域分为五大气候区,并采用改进的MOD17A2H算法对长江流域不同生态分区1982~2016年生长季植被总初级生产力(下简称“GPP”)数据集进行了重构,同时利用长江流域146个气象站点的极端气候数据进行了时空响应分析。得出1982~2016年长江流域不同气候分区1982~2016年生长季GPP对极端气候指标的时空响应特征。

In this paper,the Yangtze River Basin is divided into fiveclimate zones.The data sets of total primary productivity of vegetation(GPP)in the growing season of 1982~2016 in different climate zones of the Yangtze River Basin are re-evaluated by using the improved MOD17A2H algorithm.At the same time,the spatial and temporal response analysis was carried out using the extreme climate data of 146 meteorological stations in the Yangtze River Basin.The temporal and spatial response characteristics of GPP to extreme climate indices during the growth season of 1982~2016 in different climatic zones of the Yangtze River Basin were obtained.