川西盆周山地几种人工林的碳聚积效应研究  

Carbon Storage Effects of Different Plantations in Highland Around the Basin in Wetern Sichuan Province

作　　者：段文霞[1] 卢静惠[2] 肖猛[1] 李光跃[1] 朱波[3] 陈放[4] 

机构地区：[1]四川省农业管理干部学院,成都610071 [2]四川大学分析测试中心,成都610064 [3]中国科学院成都山地灾害与环境研究所,成都610041 [4]四川大学生命科学学院,成都610064

出　　处：《四川环境》2009年第2期1-7,11,共8页Sichuan Environment

基　　金：国家"十五"重大科技攻关项目(2002BA901A15);国家自然科学基金资助项目(40331014)

摘　　要：本文采用材积源生物量法和土壤剖面分析方法，以四川彭州为典型案例，对栽植17年的人工柳衫、杉木、水杉、桦木、桤木、喜树林的碳聚积效应进行了研究。结果表明：不同树种的生物量积累规律为：柳杉〉桦木〉喜树〉水杉〉杉木〉桤木，每公顷柳杉、桦木、喜树、水杉、杉木、桤木的生物量分别为172t、162t、157t、126t、124t、111t，柳杉的生物量比桦木、喜树、水杉、杉木、桤木增加5．81％、8．72％、嫩7％、27．9％、35．5％；不同树种的林分碳贮量为柳杉〉桦木〉喜树〉水杉〉杉木〉桤木，柳杉、桦木、喜树、水杉、杉木、桤木林分的碳贮量分别为86．0、81．0、78．5、63．0、62．0、55．5tC／hm^2，表明柳杉比其它树种具有更强的生长能力和固碳能力；林下土壤的有机碳含量，在不同土层中的分布规律为：0-10cm〉10—30cm〉30—50cm〉50—70cm，土壤有机碳集中分布于0～50cm土层内；不同树种林下土壤的碳贮量均高于同期的林分碳贮量，表明土壤碳库是林分碳库的补充和延续，且具有更大的固碳潜力。Carbon storage effects in 17-yr-old plantations of Cryptomeria fortunei, Cunninghamia lanceolata, Metasequoia glyptostroboides, Betula lumilifera, Alnus cremastogyne and Camptotheca acuminata were studied in Pengzhou County, Sichuan, China, adopting volume - derived biomass method and soil profile investigation. The result showed that the forest biomass ranked as C.fortunei 〉 B. lumilifera 〉 C. acuminata 〉 M. glyptostroboides 〉 C. lanceolata 〉 A. cremastogyne, with values of 172, 162, 157, 126, 124 and Ill t/hectare respectively. The biomass of C.fortunei was more than that of other species by 5.81%, 8. 72%, 26. 7%, 27.9% and 35.5% respectively. The forest carbon storage ranked as C.fortunei 〉 B. lumilifera 〉 C. acuminata 〉 M. glyptostroboides 〉 C. lanceolata 〉 Alnus cremastogyne, with values of 86.0, 81.0, 78. 5, 63.0, 62.0, 55.5 tC/hectare respectively, which showed that C.fortunei had strongest growing ability and fixed more CO2 than other trees. Organic carbon in soil profile ranked as 0 -10 cm 〉 10 -30 cm 〉 30 -50 cm 〉 50 -70 cm, distributing mostly within the top 50cm. Soil organic carbon storage for every species of plantation was higher than that of the corresponding trees, which meant that the carbon stock of soil was supplement and extension of that of the trees and it had higher potential capacity to fix carbon.

关 键 词：柳杉 不同人工林 生物量 碳贮量 生态效应 

分 类 号：X171.1[环境科学与工程—环境科学]