沙地杨树人工林生物量特征研究  

Biomass Characteristics of Poplar Plantation in Sandy Land

作　　者：薛博[1] 闫德仁[1] 胡小龙[1] 宝金山[2] 哈森高娃[2] 

机构地区：[1]内蒙古自治区林业科学研究院,内蒙古呼和浩特010010 [2]通辽市林研所,内蒙古通辽028100

出　　处：《内蒙古林业科技》2010年第1期11-14,共4页Journal of Inner Mongolia Forestry Science and Technology

基　　金：国家森林碳汇项目评价指标体系研究(内蒙古实地部分)

摘　　要：以科尔沁沙地杨树人工林为研究对象，实地测定了造林5年、8年、18年杨树人工林的树木生物量、枯落物生物量、草本生物量和根系生物量，并分析其特征。结果表明：5年人工林地上总生物量和0—60cm土层根系生物量分别为725kg／667m^2和260．66kg／667m^2；8年的分别为1086．62kg／667m^2和147．27kg／667m^2；18年的分别为1690．70kg／667m^2和297．75kg／667m^2。同时，随着林龄的增长，树木生物量、枯落物生物量逐渐增加，而草本生物量和根系生物量占林木总生物量的比例有所下降。Forest biomass is an important content for studying carbon sink. Taking poplar plantation in Horqin Sandy Land as research object, tree biomass, litter biomass, herb biomass and root biomass of 5 -year, 8 -year and 18 -year poplar plantation are measured, and their characteristics are analyzed. The results show： the aboveground biomass of 5 - year poplar plantation and root biomass at 0 - 60 cm soil layer are 725 kg/667 m^2 and 260. 66 kg/ 667 m^2 seperately ; those of 8 - year plantation are 1 086.62 kg/667 m^2 and 147.27 kg/667 m^2 seperately ; those of 18 -year plantation are 1 690. 70 kg/667 m^2 and 297.75 kg/667 ms seperately. With increasing of forest age, tree biomass and litter biomass also increase, but herb biomass and the ratio of root biomass to tree biomass decrease somewhat.

关 键 词：科尔沁沙地 杨树人工林 生物量 

分 类 号：S792.11[农业科学—林木遗传育种]