我国毛竹林生态系统碳储量的地带性差异  

Zonality variation of carbon storage in Phyllostachy edulis plantation ecosystems in China

作　　者：季海宝[1] 庄舜尧[1] 张厚喜[1] 孙波[1] 桂仁意[2] 

机构地区：[1]中国科学院南京土壤研究所,江苏南京210008 [2]浙江农林大学亚热带森林培育国家重点实验室培育基地,浙江临安311300

出　　处：《生态环境学报》2013年第1期1-5,共5页Ecology and Environmental Sciences

基　　金：中国科学院战略先导科技专项(XDA05070303)

摘　　要：地带性差异可能是影响毛竹Phyllostachy edulis林生态系统碳储量估算的一个重要因素。本文通过系统调查分析安徽省霍山县、浙江省临安市、浙江省龙游县、福建省建瓯市、福建省华安县、江西省奉新县及湖南省桃江县7个代表性县市的毛竹林生态系统的各组成碳量,比较地带性差异对毛竹林生态系统碳储量的影响。结果表明,不同地区所采毛竹单株的生物量均以竹秆为主,占到全株的44.72%-63.84%(平均51.78%),其次为枝叶(平均13.39%),竹鞭最少(占6.91%);毛竹生物碳量(以C计)以江西奉新最高(为31.5 t·hm 2),湖南桃江最低(仅为18.4 t·hm 2);毛竹林土壤碳量(以C计)(0-60 cm)以浙江临安最高(为119.5 t·hm 2),福建华安最低(仅为85.1 t·hm 2);毛竹林生态系统总碳量(以C计)同样以浙江临安最高(为149.7 t·hm 2),湖南桃江最低(仅为107.4 t·hm 2)。由北至南,毛竹林生态系统碳量呈显著下降的趋势。可见,地带性差异会影响毛竹林生态系统碳储量。Zonality variation is one of the important factors influencing carbon storage estimation of Phyllostachy edulis plantation ecosystems in China. In this study, a series of Phyllostachy edulis plantation ecosystems from north to south were selected for the various zone representations. These sites included Huoshan, Lin’an, Longyou, Jianou, Huaan, Fengxin and Taojiang county of Anhui, Zhejiang, Fujian, Jiangxi and Hunan province, respectively. A detail investigation of the carbon pools of Phyllostachy edulis plantation ecosystem was conducted to understand the effect of zonality variation on the carbon storage. Results showed that the amount of bamboo stem was the largest part accounting for 51.78%in dry biomass of the whole plant, the second was stick and leave as 13.39%, and the least was rhizome as 6.91%. The carbon of bamboo biomass was highest in Fengxin as C 31.5 t·hm？2 and the least in Taojiang as C 18.4 t·hm？2. The soil carbon storage （0~60 cm） was highest in Lin-an as C 119.5 t·hm？2 and the least in Hua-an as C 85.1 t·hm？2. The total carbon storage in Phyllostachy edulis plantation ecosystem was highest as C 149.7 t·hm？2 in Lin-an and the least was C 107.4 t·hm？2 in Taojiang. There was a significant decline trend of carbon storage from the north to south. Obviously, the zonality variation exerted a significant effect on carbon storage of Phyllostachy edulis plantation ecosystems.

关 键 词：毛竹 生态系统 碳储量 地带性差异 生物量 

分 类 号：X144[环境科学与工程—环境科学] Q948[生物学—植物学]