林业科技开发2013，Vol.27Issue(3)：53-56,4.DOI:10.3969/j.issn.1000-8101.2013.03.014
南京城市森林生态系统生产力与碳储量的计算
Urban forest ecosystem NPP and carbon storage based on the CASA model in Nanjing
摘要
Abstract
Based on remote sensing data of Landsat TM and meteorological data,the forest ecosystem NPP and carbon storage were estimated for Nanjing city by a CASA model improved by temperature and water stress coefficient.The results showed that the NPP spatial distribution of Nanjing forest ecosystem was relatively uniform,average value was between 200 -1 400 g/(m2 ·a).NPP value of river and bare land in urban area was the minimum,between 0-100 g/(m2 ·a).The NPP spatial distribution of Nanjing city from the north to the south showed a trend of gradual increase.Because of the southern area of the city was natural forest area,which retained its original natural state,the NPP value was the largest.Forest NPP values of various forest area distributed in Nanjing were between 1 300-1 426 g/(m2 ·a).The carbon stocks of coniferous forest,broadleaf forest and mixed forest were accounted for 24％,59％,and 17％ of the city' s total forest carbon stocks which were estimated by use of biomass-volume equation.The carbon reserves of whole city forest ecosystem were 1.117 3 million tons,average carbon density of forests was 17.38 t/hm2.The carbon storage of suburban and county forest vegetation was much higher than that of urban areas,but there were no great differences in the carbon density.关键词
CASA模型/城市森林生态系统/植被净第一性生产力/森林碳储量Key words
CASA model/city forest ecosystem/net primary productivity/forest carbon storage引用本文复制引用
朱婵璎,王让会,陈东强..南京城市森林生态系统生产力与碳储量的计算[J].林业科技开发,2013,27(3):53-56,4.基金项目
中国沙漠气象科学基金(sqj2012006) （sqj2012006）
国家科技支撑计划项目(2012BAC23B01,2012BAD16B0305) （2012BAC23B01,2012BAD16B0305）
国家"973"计划项目(2006CB705809). （2006CB705809）
