摘要
通过野外实地调查对永春县天马山柑橘林生态系统碳储量及分布特点进行研究。结果表明:柑橘的树高和基径的相关系数为0.8933。柑橘各器官生物量回归模型显示,柑橘各器官的生物量与其树高和基径的相关性较好,其中树干、树叶、果实器官的相关系数均大于0.90。柑橘林生态系统有机碳密度为222.796t.hm-2,其中土壤(0-100cm)碳密度为200.214t.hm-2,占总有机碳密度的89.864%,果树碳密度为22.582t.hm-2,占10.136%。1952-2007年,永春县柑橘林生态系统碳储量从445.592t增加到2.205×106t,表现为碳汇。
Organic carbon in citrus ecology was detected by the field investigation and measurement in Yongchun County,Fujian Province.The results showed that citrus organs had a positive correlation with each other based on analyzing of biomass linear regression model.Correlation coefficient of stem,leaf and fruit both exceeded 0.90.The correlation coefficient between height and base diameter was 0.893333.The carbon density in the ecosystem was 222.796 t·hm-2,in which soil（0-100 cm）carbon density was 200.214 t·hm-2,vegetation carbon density was of 22.582 t·hm-2,account for 89.864% and 10.136% of total carbon density,respectively.From 1952 to 2007,the organic carbon storage in citrus ecosystem was increased from 445.592t to 2.205×106t in Yongchun County,which playing a role of sink.
出处
《生态学报》
CAS
CSCD
北大核心
2010年第2期309-316,共8页
Acta Ecologica Sinica
基金
国家教育部博士点学生专项基金资助项目(200803890010)
关键词
柑橘林
生态系统
碳密度
碳储量
citrus forest
ecosystem
organic carbon density
organic carbon storage
