生态学报2018，Vol.38Issue(8)：2754-2767,14.DOI:10.5846/stxb201705160902
2000-2015年安徽省植被净初级生产力时空分布特征及其驱动因素
Spatio-temporal variations in vegetation Net Primary Productivity and their driving factors in Anhui Province from 2000 to 2015
摘要
Abstract
Anhui is one of the agricultural provinces in China.Its food security is directly influenced by the dynamics of the local ecosystems,which can be reflected through the change in vegetation net primary productivity (NPP).This study used MOD17A3 NPP data,meteorological data,and land use type data to investigate the spatio-temporal changes to vegetation NPP and its driving factors in Anhui Province from 2000 to 2015.The data was analyzed using bias analysis,coefficient of variation,trend analysis,and correlation analysis.The results showed that 1) Between 2000 and 2015,the average annual NPP for Anhui Province was 476.6 gC/m2,ranging from 396.6 to 531.8 gC/m2,and vegetation NPP had a strong spatial variability in Anhui Province,where it was higher in the south and lower in the northern part of the Province.2) The average NPP varied for different land cover where forest land had the largest NPP at 535.5 gC/m2.The amplitude of the NPP annual change also varied for different land cover,with the largest values being recorded for forest and grassland.3)Vegetation NPP changes were driven by many environmental factor,such as climate change and human activities,but rainfall played the most important role.However,the large increases in human activities and urbanization have meant that they have gradually become the main forces driving NPP change.关键词
安徽省/NPP/时空分布/驱动因子/土地利用Key words
Anhui Province/NPP/temporal and spatial distribution/driving factors/land use type引用本文复制引用
王芳,汪左,张运..2000-2015年安徽省植被净初级生产力时空分布特征及其驱动因素[J].生态学报,2018,38(8):2754-2767,14.基金项目
国家自然科学基金(41501379) （41501379）
安徽师范大学博士科研启动金项目(2016XJJ100) （2016XJJ100）
