华东师范大学学报（自然科学版）Issue(4)：164-173,10.DOI:10.3969/j.issn.1000-5641.2015.04.017
2000-2010年东北三省碳源汇时空动态遥感研究
Temporal-spatial variations of carbon sink/source in Northeast China from 2000 to 2010
摘要
Abstract
Net Ecosystem Productivity (NEP)is an important parameter when estimating regional carbon source/sink.Based on EOS/MODIS data and meteorological data,NEP was calculated in Hei-longjiang,Jilin and Liaoning from 2000 to 2010.The temporal characteristics of NEP were analyzed, the results showed that during 2000 to 2010 most areas in three provinces of Northeast China were car-bon sinks,NEP was between 0~300 g C·m-2 ·a-1 ,carbon sources were in Northwestern Jinlin and Southwestern Heilongjiang;the mean NEP of forest(176.74 g C·m-2 ·a-1 )was the highest,fol-lowed by shrub(175.02 g C·m-2 ·a-1 ),the carbon sequestration ability of farmland,wetland and grass decreased successively.In nearly 66.36% of the territory of the study area,NEP tended to de-cline,which meaned their carbon sequestration were weaker.Area with increased carbon sequestration were in Southeastern Changbai Mountain in Liaoning province and hills in western Liaoning,where the increasing slope was between 5 ~15.The correlation coefficient between NEP and precipitation was significant;NEP was sensitive to the extreme value of the temperature and precipitation,the trend of NEP was consistent with the fluctuation of precipitation.This paper conducted regional simulation of carbon sink/source,providing theoretical basis and methodological references for the usage of remote sensing data in the related study areas.关键词
净生态系统生产力/东北三省/MODISKey words
NEP/Northeast China/MODIS分类
生物科学引用本文复制引用
张璐,王静,施润和..2000-2010年东北三省碳源汇时空动态遥感研究[J].华东师范大学学报（自然科学版）,2015,(4):164-173,10.基金项目
国家973项目基金（2010CB951603）；国家自然科学基金项目（41201358）；上海市科委重点支撑项目 （）
