摘要
对广州白云山风景区主要林分类型的生产力及吸碳放氧功能进行了初步研究.各主要林分总生物量、总吸碳量和总释氧量大小顺序为木荷石栎混交林>木荷林>中华锥林>大叶相思林>马尾松林>马占相思林>黧蒴林>降真香林>尖叶杜英林>加勒比松林.各林分生产力、年均吸碳量和年均释氧量大小顺序均为马占相思林>黧蒴林>大叶相思林>木荷石栎混交林>木荷林>尖叶杜英林>中华锥林>降真香林>加勒比松林>马尾松林.表明速生阔叶林的吸碳放氧能力比针叶林强;处于速生期的阔叶树人工林的吸碳放氧能力比天然次生近熟林强.
Preliminary study on the productivity and capacities of absorbing CO2 and producing O2 of the staple stands in the Baiyunshan Scenic Spot, Guangzhou showed that the total biomass of and total CO2 absorbed and total O2 produced by the stands varied markedly, with the order of biomass amount and capacities of CO2 absorption and O2 production being Schima superba-Lithocarpus glaber> Schima superba> Castanopsis chinensis> Acacia auriculiformis> Pinus massoniana> Acacia mangium> Castanopsis fissa> Acronychia pedunculata> Elaeocarpus apiculatus> Pinus caribaea. The annual biomass growth, CO2 fixation and O2 production of the stands followed the order of Acacia mangium> Castanopsis fissa> Acacia auriculaeformis> Schima superba-Lithocarpus glaber> Schima superba> Elaeocarpus apiculatus> Castanopsis chinensis> Acronychia pedunculata> Pinus caribaea> Pinus massoniana, indicating that the fast-growing broadleaved stands had higher capacities of absorbing CO2 and producing O2 than coniferous stands, and fast growing broadleaved plantations higher than the nearly mature natural secondary stands.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2003年第1期16-19,共4页
Journal of South China Agricultural University
基金
广州市"九五"攻关重大课题(98-z-044-01)
关键词
白云山风景区
林分
生产力
吸碳放氧功能
森林生态效益
Baiyunshan Scenic Spot
forest stands
productivity
CO_2 absorption and O_2 production
