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Position: Home > Articles > Study on Carbon Storage and Distribution of Acacia crassicarpa Young Plantation Ecosystem Journal of Anhui Agricultural Sciences 2008,36 (32) 14089-14092

厚荚相思人工幼林生态系统碳贮量及其分布研究

作  者:
秦武明;何斌;韦善华;蔡树威;覃永华
单  位:
广西林业勘测设计院;广西高峰林场;广西大学林学院广西七坡林场广西林业勘测设计院;广西大学林学院
关键词:
厚荚相思;幼林;碳素含量;碳贮量;碳素分配
摘  要:
对1.5、2.5和3.5年生的厚荚相思人工林生态系统的碳素含量、贮量及其空间分布特征进行了研究。结果表明:厚荚相思不同器官碳素含量的变化范围为457.6~525.1 g/kg,厚荚相思各器官碳素含量高低排列次序基本一致,表现为树叶>树枝>树干>树根>树皮;土壤碳素含量随土层深度增加而减少。3个林龄厚荚相思人工林生态系统碳素贮存量分别为73.04、86.14和96.34 t/hm2,其分布序列为土壤(0~60 cm)>植被层>凋落物层。碳贮量在林木不同器官中的分配基本上与各器官生物量成正比,3个林龄厚荚相思人工林年净固碳量分别为3.89、8.26和9.23 t/(hm2.a)。
译  名:
Study on Carbon Storage and Distribution of Acacia crassicarpa Young Plantation Ecosystem
作  者:
QIN Wu-ming et al (College of Forestry,Guangxi University,Nanning,Guangxi 530004)
关键词:
Acacia crassicarpa;Young plantation;Carbon content;Carbon storage;Carbon distribution
摘  要:
The carbon content,storage and distribution of the ecosystem of 1.5-year-old,2.5-year-old and 3.5-year-old Acacia crassicarpa plantations were studied.The results showed that carbon content in different organs of A.crassicarpa trees ranged from 457.6 g/kg to 525.1 g/kg,and decreased in the order of leaf > branch > stem > root > bark.Carbon content of the soil(0-60 cm)declined with the increase of soil depth.Total carbon storage at three stand ages of A.crassicarpa plantation ecosystems were 73.04,86.14 and 96.34 t/hm2,respectively.The carbon storage order of A.crassicarpa plantation ecosystem was soil layer(0-60 cm) > vegetation > standing litter.The carbon storage in different organs was basically positively related to the biomass of corresponding organs.Annual net carbon fixation was up to 3.89,8.26 and 9.23 t/(hm2·a),respectively.

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