福州城市片林与草坪生物量及碳贮量  

Biomass and Carbon Storage in Urban Forests and Lawns in Fuzhou

作　　者：钟羡芳[1,2] 李熙波[1] 黄向华[1,2] 杨玉盛[1,2] 

机构地区：[1]湿润亚热带山地生态国家重点实验室培育基地,福州350007 [2]福建师范大学地理科学学院,福州350007

出　　处：《亚热带资源与环境学报》2013年第4期9-15,共7页Journal of Subtropical Resources and Environment

基　　金：国家自然科学基金(31000321)

摘　　要：城市绿地是城市生态系统中重要的碳贮存库．采用平均标准木法与收获法估算福州市南江滨公园内的3种（南洋杉、番石榴、黄花槐）片林及其毗邻草坪的生物量与碳贮量，结果表明：南洋杉平均单株生物量为27．52kg，番石榴为48．60k，黄花槐为15．08kg；其中树干是主体，占整株生物量的58．0％～69．4％；3种林木的根系生物量也较高，占整株生物量比例达25％以上，其中黄花槐最高，达到33％；3块草坪生物量分别为31．11t·hm^-2（南洋杉毗邻草坪）、21．00t·hm^-2（番石榴毗邻草坪）、33．07t·hm以（黄花槐毗邻草坪）；片林各器官的碳含量比较接近（除叶在41％左右外），波动范围为45．8％-47．2％，草坪各器官碳含量较低，波动范围为36．5％～41．3％；3种片林的植被碳贮量分别为24．69t·hm^-2（南洋杉）、38．19t·hm^-2（番石榴）、17．71t·hm^-2（黄花槐）；3块草坪的植被碳贮量分别为12．47t·hm^-2（南洋杉毗邻草坪）、8．48t·hm^2（番石榴毗邻草坪）、13．21t·hm^-2（黄花槐毗邻草坪）．Urban green space is a major carbon pool in urban ecosystems. Biomass and carbon storage were studied in the three urban forests and lawns in Minjiang Park of Fuzhou （26°03＇N, 119°15＇E） which is the capital city of Fujian. Two methods, mean sample tree method and sampling harvest method, were used to estimate the biomass of tree and herbage layers. Carbon concentrations of plant samples were determined using an ELEMENTAR Vario EL III CN Analyzer. The results showed that mean individual tree biomass was 27.52 kg for Araucaria cunninghamii, 48.60 kg for Psidium guajava Linn. and 15.08 kg for Sophora xanthantha C. Y. Ma. Biomass of the lawns adjacent to Araucaria cunninghamii, Psidium guajava Linn and Sophora xanthantha C. Y. Ma was 31.11 t · hm^-2 , 21. 00 t· hm^-2 and 33.07 t · hm^-2, respectively. The stem and branch biomass of the three species accoun- ted from 58.0% to 69.4% , which is a largest proportion, in total biomass of individual tree. Moreo- ver, root biomass of the three species accounted more than 25 % in the total, with a largest proportion appeared in Sophora xanthantha C. Y. Ma, which was 33%. Organ carbon contents of the three trees were 45.8% -47.2% . with a lower level for leaf which was about 41%. Carbon contents of different organs of herbage were 36.5% -41.3%, lower than that of trees. Total carbon storages of three trees were 24. 69 t · hm^-2 （Araucaria cunninghamii）, 38.19 t ·hm^-2 （Psidium guajava Linn. ）, 17.71 t· hm^-2 （Sophora xanthantha C. Y. Ma）, respectively. Carbon storages of lawns were 12. 47 t · hm^-2 （lawn adjacent to Araucaria curminghamii）, 8.48 t · hm^-2 （lawn adjacent to Psidium guajava Linn. ）, 13.21 t · hm^-2 （lawn adjacent to Sophora xanthantha C. Y. Ma）, respectively.

关 键 词：城市片林 草坪 生物量 碳贮量 福州 

分 类 号：S718.55[农业科学—林学]