鹰嘴界自然保护区不同森林类型固碳释氧功能研究  

Study on carbon fixation and oxygen release of different type forests in Yingzuijie Nature Reserve

作　　者：王忠诚[1,2] 王淮永[1] 华华[1] 张展[2] 

机构地区：[1]中南林业科技大学林学院,湖南长沙410004 [2]中南林业科技大学农林经济管理研究中心,湖南长沙410004

出　　处：《中南林业科技大学学报》2013年第7期98-101,130,共5页Journal of Central South University of Forestry & Technology

基　　金：2012年度湖南省高校创新平台开放基金“湖南省典型农业干旱区基本农田保护模式研究”(12K072)

摘　　要：为研究不同森林类型固碳释氧功能效益,采用野外观测和室内实验相结合的方法对会同鹰嘴界自然保护区的阔叶混交林、杉木毛竹混交林和杉木林等森林类型植被生长状况和林地土壤容重、有机质等指标进行监测,并运用蓄积量与生物量的转换关系对鹰嘴界自然保护区不同森林类型的生态系统固碳释氧功能效益进行定量分析。结果表明:(1)不同森林类型林木平均生物量存在明显的差异性,即:阔叶混交林(233.49 t.hm-2)>杉木毛竹混交林(181.18 t.hm-2)>杉木林(82.53 t.hm-2);(2)土壤碳密度表现为:杉木毛竹混交林(42.55 t.hm-2)>阔叶混交林(36.60 t.hm-2)>杉木林(32.94 t.hm-2);(3)主要森林类型的固碳释氧效益表现为:阔叶混交林>杉木毛竹混交林>杉木林。该研究成果较为准确地反映了鹰嘴界自然保护区森林生态系统的固碳释氧效益,对鹰嘴界自然保护区森林建设与保护有一定的参考价值。In order to research the function efficiency of carbon fixation and oxygen release of different type forests,by adopting the method of combining the field observation and indoor experiments,the indicators of vegetation growth conditions,woodland soil bulk density and soil organic matter of broadleaf mixed forest,bamboo Chinese fir mixed and fir forest in Yingzuijie Nature Reserve were monitored,the fixing carbon and releasing oxygen benefits of ecosystem functions were quantitatively analyzed by using the transformational relation between volume and biomass.The results show that：（1） The average forest biomasses of different forest types has significant differences,they ranked by magnitude： broadleaf mixed forest（233.49 t.hm-2） bamboo and Chinese fir mixed forest（181.18 t.hm-2） Chinese fir forest（82.53 t.hm-2）;（2） Soil carbon density ordered from high to low： bamboo and Chinese fir mixed（42.55 t.hm-2） broadleaf mixed forest（36.60 t.hm-2） Chinese fir forest（32.94 t.hm-2）;（3） Carbon fixation and oxygen release function efficiency of main types of forests sequenced by magnitude： broadleaf mixed forest bamboo and Chinese fir Chinese fir forest mixed.The results accurately reflect the carbon sequestration and releasing oxygen function efficiency of forest ecological system in Yingzuijie Nature Reserve,and has some certain reference values for forest construction and protection in Yingzuijie Nature Reserve.

关 键 词：森林类型 固碳释氧 生物量 林木蓄积量 鹰嘴界自然保护区 

分 类 号：S718.56[农业科学—林学]