林业资源管理
林業資源管理
임업자원관리
FORESTRY RESOURCE MANAGEMENT
2014年
6期
54-57
,共4页
张绍轩%马娇娇%吴强%王卫军%谷建才
張紹軒%馬嬌嬌%吳彊%王衛軍%穀建纔
장소헌%마교교%오강%왕위군%곡건재
闽江%碳密度%分布特征
閩江%碳密度%分佈特徵
민강%탄밀도%분포특정
the Minjiang River%carbon density%distribution
以闽江入海口沿岸上游林区为研究对象,采用生物量推算法对调查资料进行处理,从森林植被类型和林龄两方面分析林区主要森林类型的碳储量和碳密度的分布情况。结果表明:除西部高山区外,碳密度分布从东往西逐渐升高,在人类活动区域碳密度变化范围主要为20~40t/hm2。不同林龄碳储量从小到大排序为中龄林(82171.91t)>幼龄林(43692.93t)>近熟林(18851.71t)>成熟林(5789.81 t),碳密度在针叶林、阔叶林与针阔混交林各林龄分布中均表现为成熟林>近熟林>中龄林>幼龄林。随着龄级的增大,碳密度增大,随着森林的增长,固碳能力逐渐增大。
以閩江入海口沿岸上遊林區為研究對象,採用生物量推算法對調查資料進行處理,從森林植被類型和林齡兩方麵分析林區主要森林類型的碳儲量和碳密度的分佈情況。結果錶明:除西部高山區外,碳密度分佈從東往西逐漸升高,在人類活動區域碳密度變化範圍主要為20~40t/hm2。不同林齡碳儲量從小到大排序為中齡林(82171.91t)>幼齡林(43692.93t)>近熟林(18851.71t)>成熟林(5789.81 t),碳密度在針葉林、闊葉林與針闊混交林各林齡分佈中均錶現為成熟林>近熟林>中齡林>幼齡林。隨著齡級的增大,碳密度增大,隨著森林的增長,固碳能力逐漸增大。
이민강입해구연안상유림구위연구대상,채용생물량추산법대조사자료진행처리,종삼림식피류형화림령량방면분석림구주요삼림류형적탄저량화탄밀도적분포정황。결과표명:제서부고산구외,탄밀도분포종동왕서축점승고,재인류활동구역탄밀도변화범위주요위20~40t/hm2。불동림령탄저량종소도대배서위중령림(82171.91t)>유령림(43692.93t)>근숙림(18851.71t)>성숙림(5789.81 t),탄밀도재침협림、활협림여침활혼교림각림령분포중균표현위성숙림>근숙림>중령림>유령림。수착령급적증대,탄밀도증대,수착삼림적증장,고탄능력축점증대。
The forest areas of the upper reaches of the Minjiang River estuary are used as the research ob-ject and based on two types of resources survey data in two aspects of forest vegetation types and different age groups,analysis was done on the biomass estimation distribution and the carbon storage and carbon density distribution of the main forest types.The results shows that carbon density distribution in addition to the western mountain area,shows a rising pattern from east to west,carbon density ranges mainly be-tween 20t/hm2 and 40t/hm2 in the area of human activity.The carbon storage of the forests of different ages is in an ascending order as follows:middle-aged forest (82 171.91t)>young growth (43 692.94t)>near mature forest (18 851.71t)>mature forest (5 789.81t),carbon density in different age groups of coniferous forest,broad-leaved forest,coniferous and broad-leaved mixed forest is in an ascending order as follows:mature forest carbon density >near mature forest carbon density >middle aged forest carbon density >sapling forest carbon density.With the increase of age class,carbon density increases,and with the growth of the forests,carbon sequestration capacity increases gradually.