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林业资源管理 ›› 2014›› Issue (1): 89-97.doi: 10.13466/j.cnki.lyzygl.2014.01.018

• 科学研究 • 上一篇    下一篇

江苏省森林生态系统碳汇现状研究

林虹1, 马旭1, 何再华1, 刘斌2, 黄众2, 田兴军1   

  1. 1.南京大学 生命科学院,南京 210093;
    2.江苏省林业局,南京 210036
  • 收稿日期:2013-12-12 修回日期:2013-12-26 出版日期:2014-02-28 发布日期:2020-12-09
  • 通讯作者: 田兴军,教授,主要从事森林生态学研究。Email:tianxj@nju.edu.cn
  • 作者简介:林虹(1989-),女,江苏淮安人,硕士,主要从事森林生态学研究。Email:linhongshengwu2012@163.com
  • 基金资助:
    中国科学院战略性先导科技专项(XDA0505020404)

Research on Forest Ecosystem Carbon Sinks in Jiangsu Province

LIN Hong1, MA Xu1, HE ZaiHua1, LIU Bin2, HUANG Zhong2, TIAN XingJun1   

  1. 1. School of Life Sciences,Nanjing University,Nanjing 210093,China;
    2. Jiangsu Forestry Bureau,Nanjing 210036,China
  • Received:2013-12-12 Revised:2013-12-26 Online:2014-02-28 Published:2020-12-09

摘要: 在2011—2012年江苏省样地野外调查的基础上,结合江苏省2010年森林资源二类调查的结果,计算出江苏省森林生态系统的碳储量和碳密度。结果表明:截止到2012年,江苏省森林生态系统总碳储量为179.16Tg C。其中乔木层、灌草层、凋落物层和土壤层的碳储量分别为57.95,6.90,14.44,99.87Tg C,占总碳量的32.44%,3.85%,8.05%,55.66%。江苏省森林生态系统的平均碳密度为143.00T/hm2。各层的碳密度大小为:土壤层(83.65 T/hm2)>乔木层(51.43T/hm2)>凋落物层(5.24T/hm2)>灌草层(2.66T/hm2)。林分类型不同,其碳储量和碳密度存在很大差异,其中落叶阔叶林碳储量最大为102.03Tg C,竹林碳储量最小为3.90Tg C;常绿阔叶林碳密度最大为170.97 T/hm2,落叶阔叶林碳密度最小:109.99 T/hm2。 从龄组看,全省森林碳储量主要集中10a以下林、10~20a林,分别为11.36,27.92Tg C,两者占全省总碳储量25.07%,61.63%。植被地上生物量与土壤特性相关分析表明:土壤碳含量、氮含量与植被地上生物量均呈正相关,其中氮含量与地上生物量有较显著的正相关关系(p=0.03),各土层含水量与地上生物量的相关性不明显。

关键词: 江苏省, 森林生态系统, 碳储量, 碳密度

Abstract: On the basis of the field investigation of sample plots in Jiangsu province in 2011-2012 and the results of forest resource survey in 2010,we calculated the forest ecosystem carbon storage and density of Jiangsu province.Until 2012,total carbon storage of forest ecosystem was 179.16 Tg C,and the carbon storages in arbor layer,shrub-grass layer,litter layer,and soil were 57.95Tg C,6.90Tg C,14.44Tg C,99.87Tg C,accounting for 32.44%,3.85%,8.05%,and 55.66% of the total,respectively.The average carbon density in the forest ecosystems was 143.00T/hm2,with 83.65 T/hm2 in soil,51.43T/hm2 in arbor layer,5.24T/hm2 in litter layer,and 2.66T/hm2 in shrub-grass layer.Different types of the forest ecosystems had different carbon storage and density,and values of carbon storage in deciduous broadleaved forest was highest(102.03Tg C),bamboo forest had the lowest values(3.90Tg C).Values of density in evergreen broadleaved forest was highest(170.97 T/hm2),deciduous broad-leaved forest had the lowst values(109.99 T/hm2).According to age group,forest carbon storage was mainly distributed in the age groups of below 10 years,10 to 20 years,values were respectively 11.36 Tg C,27.92 Tg C,which accounted for 25.07% and 61.63% of the total carbon.Correlation analysis between aboveground biomass and soil characteristics showed that aboveground biomass and characteristics of soil carbon content,nitrogen content are positively correlated,and aboveground biomass appeared strongly related to soil nitrogen content (p=0.03),correlation of aboveground biomass and soil water content was not significant.

Key words: Jiangsu, forest ecosystem, carbon storage, carbon density

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