CAJ | 학술논문

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27.52 kg，番石榴为48.60 kg，黄花槐为15.08 kg；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31.11 t · hm -2（南洋杉毗邻草坪）、21.00 t · hm-2（番石榴毗邻草坪）、33.07 t · hm -2（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24.69 t · hm-2（南洋杉）、38.19 t · hm -2（番石榴）、17.71 t · hm -2（黄花槐）；3块草坪的植被碳贮量分别为12.47 t· hm-2（南洋杉毗邻草坪）、8.48 t· hm-2（番石榴毗邻草坪）、13.21 t· hm-2（黄花槐毗邻草坪）．
성시록지시성시생태계통중중요적탄저존고．채용평균표준목법여수획법고산복주시남강빈공완내적3충（남양삼、번석류、황화괴）편림급기비린초평적생물량여탄저량，결과표명：남양삼평균단주생물량위27.52 kg，번석류위48.60 kg，황화괴위15.08 kg；기중수간시주체，점정주생물량적58.0％～69.4％；3충림목적근계생물량야교고，점정주생물량비례체25％이상，기중황화괴최고，체도33％；3괴초평생물량분별위31.11 t · hm -2（남양삼비린초평）、21.00 t · hm-2（번석류비린초평）、33.07 t · hm -2（황화괴비린초평）；편림각기관적탄함량비교접근（제협재41％좌우외），파동범위위45.8％～47.2％，초평각기관탄함량교저，파동범위위36.5％～41.3％；3충편림적식피탄저량분별위24.69 t · hm-2（남양삼）、38.19 t · hm -2（번석류）、17.71 t · hm -2（황화괴）；3괴초평적식피탄저량분별위12.47 t· hm-2（남양삼비린초평）、8.48 t· hm-2（번석류비린초평）、13.21 t· hm-2（황화괴비린초평）．
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 meth-od, were used to estimate the biomass of tree and herbage layers .Carbon concentrations of plant sam-ples 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 dif-ferent organs of herbage were 36.5% ~41.3%, lower than that of trees.Total carbon storages of threetrees 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 12.47t· hm-2 (lawn adjacent to Araucaria cunninghamii), 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.