植物研究2013，Vol.33Issue(2)：225-231,7.DOI:10.7525/j.issn.1673-5102.2013.02.018
秦岭山地植被净初级生产力及对气候变化的响应
Vegetation Net Primary Productivity in Qinling Mountains and Its Response to Climate Change
摘要
Abstract
Based on the NDVI data and meteorological data from 1999 to 2009,the vegetation net primary productivity (NPP) in Qinling mountains was estimated using CASA model ,and the characteristics of spatial and temporal variation of NPP and the response to climate change in Qinling mountains were analyzed.The results showed that: 11-year average annual NPP was 542.24 gC · m-2 · a-1; NPP in Qinling mountains was remarkably increased (P<0.01) during the studied period,and the maximum of NPP (718.77 gC · m-2 · a-1) was in 2008,the minimum (471.78 gC · m-2 · a-1) was in 2001; the size of contribution rate of four seasons for annual NPP followed by summer (49.90% ) > spring (26.16% ) > autumn (18.87% ) > winter (5.07% ); there was a significant correlation of monthly NPP with temperature and precipitation,and the correlation with temperature was higher than that with precipitation,the influence of temperature on NPP was larger than precipitation on NPP in the month level; the correlation of NPP with temperature and precipitation was mainly characterized by positive value in spatial distribution during growing season.关键词
气候变化/秦岭山地/植被净初级生产力Key words
climate change/Qinling mountains/vegetation net primary productivity分类
农业科技引用本文复制引用
袁博,白红英,章杰,马新萍..秦岭山地植被净初级生产力及对气候变化的响应[J].植物研究,2013,33(2):225-231,7.基金项目
林业公益性行业科研专项经费项目(201304309) （201304309）
