【摘要】 为筛选出固碳能力强和适应性好的树种，采用文献检索的方式，设置了生长条件相似、苗龄相近、试验方法相同，且为湖北省常见乡土树种等条件，筛选出符合条件的树种28个。对各树种的日净同化量、单位叶面积日净固碳量以及光响应参数等进行比较分析，利用聚类分析法对28个树种按固碳能力和光合效率等级划分并归类。结果表明，28个树种的单位叶面积日净固碳量为4.00～16.49 g/（m~2·d），以榉树（Zelkova serrata）、夹竹桃（Nerium oleander）、黄栌（Cotinus coggygria var. cinerea）的日净固碳量较高。夹竹桃、栓皮栎（Quercus variabilis）、枫杨（Pterocarya stenoptera）为强阳性树种，香樟（Cinnamomum camphora）、乌桕（Triadica sebifera）、榉树（Zelkova serrata）等9个树种属阳性树种，楸树（Catalpa bungei）、喜树（Camptotheca acuminata）、无患子（Sapindus saponaria）等12个树种属中性树种，油茶（Camellia oleifera）、杜英（Elaeocarpus decipiens）、钩栗（Castanopsis tibetana）、香果树（Emmenopterys henryi）属耐阴树种。固碳能力强和适应性强的枫杨、乌桕、榉树、红椿（Toona ciliata）、楸树、喜树、栓皮栎可优先用于湖北省乃至长江中下游地区碳汇造林。在构建固碳高效的碳汇林时，应考虑将强阳性乔木和耐阴性灌木合理搭配。更多还原

【Abstract】 In order to screen out the tree species with strong carbon sequestration ability and good adaptability,a literature searchmethod was used to set the conditions of similar growth conditions,similar seedling age,the same test methods,and common nativetree species in Hubei Province. 28 tree species meeting the conditions were screened. The daily net assimilation,daily net carbon se-questration per unit leaf area and light response parameters of each tree species were compared and analyzed,and 28 tree species wereclassified according to carbon sequestration capacity and photosynthetic efficiency by cluster analysis method. The results showed thatthe daily net carbon sequestration per unit leaf area of 28 tree species was 4.00～16.49 g/（m~2·d）. The daily net carbon sequestrations ofZelkova serrata,Nerium oleander and Cotinus coggygria var. cinerea were high. Nerium oleander,Quercus variabilis and Pterocarya stenoptera were strongly positive species. While Cinnamomum camphora,Triadica sebifera,Zelkova serrata etc. 9 species belonged topositive tree species. Catalpa bungei,Camptotheca acuminate,Sapindus saponaria etc. 12 species belonged to neutral tree species,while Camellia oleifera,Elaeocarpus decipiens,Castanopsis tibetana and Emmenopterys henryi belonged to shade-tolerant tree species.Pterocarya stenoptera,Triadica sebifera,Zelkova serrata,Toona ciliate,Catalpa bungei,Camptotheca acuminate and Quercus variabilis with high carbon sequestration capacity and strong adaptability could be preferentially used for carbon sink afforestation in HubeiProvince and even the middle and lower reaches of the Yangtze River. In the construction of carbon sequestration efficient carbon sinkforest,the reasonable collocation of strong positive trees and shade-tolerant shrubs should be considered.更多还原