上海嘉松南路绿带香樟林和意杨林生长量及生物量动态  

Growth and Biomass Dynamics of Cinnamomum camphora Forest and Populus×canadensis‘I-214’Forest in the Green Belt of Jiasong South Road,Shanghai

作　　者：邓力豪 刘雨沛[1] 张庆费[2] 戴兴安[1] DENG Lihao;LIU Yupei;ZHANG Qingfei;DAI Xingan(Central South University of Forestry and Technology,Changsha,Hunan,China,410000;Shanghai Chenshan Botanical Garden,Shanghai,China,200000)

机构地区：[1]中南林业科技大学,长沙410000 [2]上海辰山植物园,上海201602

出　　处：《园林》2022年第6期68-73,共6页Landscape Architecture Academic Journal

基　　金：上海市绿化和市容管理局科研攻关项目“上海周边区域地带性群落优势种与生境特征研究”(编号:G202403)。

摘　　要：研究城市绿化树种生长发育过程特征是城市植物群落构建、养护管理和生态功能评估的基础。以上海嘉松南路绿带的香樟林和意杨林为研究对象,在2010年、2015年与2020年间,分别定位测量两个群落的生长参数,并利用单木异速生长方程估测生物量和碳储量变化。结果表明,香樟林和意杨林的平均胸径分别从2010年的5.71 cm、10.38 cm增长到2015年的9.69 cm、15.53 cm和2020年的18.14 cm、24.50 cm;同时,2020年的香樟林单位生物量和碳储量分别为2010年的4.44倍、2015年的1.93倍;而2020年意杨林单位生物量和碳储量分别是为2010年的3.55倍、2015年的1.35倍。虽然意杨的生长速度和生物量增长速度较快,但随着时间推移,意杨种群发展趋于衰弱,生长量增长率低于香樟林,而香樟林则呈持续发展趋势。研究结果可以为速生树种和长寿树种的合理选择提供借鉴,也为城市绿地碳汇估算提供参考。The study of the characteristics of urban greening tree species’growth and development process is the basis of urban plant community construction,maintenance and management,and ecological function evaluation.Taking the Cinnamomum camphora and Populus×Canadensis‘I-214’in the green belt of Jiasongnan Road in Shanghai as the research object,the growth parameters of the two forests were measured respectively in 2010,2015 and 2020,and the changes in biomass and carbon storage were estimated by single tree allometric growth equation.The results showed that the average DBH of Cinnamomum camphora forest and Populus×Canadensis‘I-214’forest increased from 5.71 cm and 10.38 cm in 2010,to 9.69 cm and 15.53 cm in 2015,and 18.14 cm and 24.50 cm in 2020.At the same time,the unit biomass and carbon storage of Cinnamomum camphora forest in 2020 are 4.44 times of 2010 and 1.93 times of 2015,respectively.In 2020,the unit biomass and carbon storage of Populus×Canadensis‘I-214’forest were 3.55 times of 2010 and 1.35 times of 2015,respectively.Although the growth rate and biomass of Populus×Canadensis‘I-214’increased rapidly,with the passage of time,the development of the Populus×Canadensis‘I-214’population tends to weaken,and the growth rate is lower than that of Cinnamomum camphora forest,while Cinnamomum camphora forest shows a sustainable development trend.The results can provide a reference for the rational selection of fast-growing tree species and long-lived tree species and a reference for estimating carbon sink in urban green space.

关 键 词：上海 香樟林 意杨林 群落结构 生物量 碳储量 生长动态 

分 类 号：TU986[建筑科学—城市规划与设计]