北京林业大学学报2011,Vol.33Issue(5):65-68,4.
油松、刺槐与杨树树干材积碳储量动态变化研究
Dynamic changes of carbon storage in trunk volume of Pinus tabulaeformis,Robinia pseudoacacia and Populus euramericana
摘要
Abstract
In order to select suitable tree species for carbon sink and determine forest management cycle,we used a new analytical method to study carbon storage and its dynamics in major afforestation species in the north of China.Results show that 1) the mature age of Pinus tabulaeformis,Robinia pseudoacacia and Populus euramericana were 67,40 and 30 years,respectively.2) Wood density of P.tabulaeformis and R.pseudoacacia presented a slowly-increasing trend in the initial phase and reached the maximum value at age 30.After age 30,wood density of P.tabulaeformis decreased gradually until reaching a stable value,while those of R.pseudoacacia declined continuously.For P.euramericana,wood density increased quickly before age 4,increased slowly from age 4 to 18 and declined from age 18 to 28.3) The carbon storage of P.tabulaeformis showed a relatively large variation,with the maximum value of 60.52% at age 20 and the minimum value of 46.14% at age 40.In contrast,the carbon storage of R.pseudoacacia varied greatly before age 25 and then became stable,with the maximum value of 56.96% at age 5 and the minimum of 42.58% at age 25.The carbon storage of P.euramericana changed little;it declined slowly from the maximum value of 48.64% to the minimum of 46.64%.4) The average carbon storage of P.tabulaeformis,R.pseudoacacia and P.euramericana peaked at age 70(2.5267 kg),40(3.7939 kg) and 30(2.7810 kg),respectively.关键词
木材密度/碳含量/碳储量/油松/刺槐/杨树Key words
wood density/carbon content/carbon storage/Pinus tabulaeformis/Robinia pseudoacacia/Populus euramericana分类
农业科技引用本文复制引用
殷鸣放,杨琳,殷炜达,雷庆国,谭希斌,张艳会,李志伟..油松、刺槐与杨树树干材积碳储量动态变化研究[J].北京林业大学学报,2011,33(5):65-68,4.基金项目
“948”国家林业局引进项目 ()
国家自然科学基金项目 ()