南京林业大学学报（自然科学版）Issue(5)：157-160,4.DOI:10.3969/j.issn.1000-2006.2014.05.031
中亚热带常绿阔叶林优势树种幼树光合特性季节动态
Seasonal dynamic study on photosynthetic characteristics of dominant evergreen broadleaved forest
摘要
Abstract
Based on modified exponential model, we estimated photosynthetic parameters of Castanopsis carlesii, C. fargesii and Schima superba during their vigorous growth period ( spring, summer, autumn) , which were dominant tree species in evergreen broad-leaved forest. The light saturation points of Castanopsis carlesii, C. fargesii and S. superba in spring were lest in three seasons, were 1 241�25, 1 245�93, 1 366�49, μmol/( m2·s ) respectively, and their maximum net photosynthetic rates in summer were most in three seasons, were 3�78, 5.39, 7.20μmol/( m2·s) respec-tively. The light compensation point, light saturation point, maximum net photosynthetic rate, dark respiration rate of Schima superba were all more than Castanopsis carlesii and C. fargesii in spring. In summer and autumn, the light satura-tion points of Castanopsis fargesii and S. superba were both more than Castanopsis carlesii. Furthermore, the maximum net photosynthetic rates of S. superba were more than Castanopsis carlesii and C. fargesii, and also more than C. carlesii in autumn. The result of comprehensive comparison was that the photosynthetic capacity and adaptability to light environ-ment of Schima superba were strong, and then that was C. fargesii, and C. carlesii was last.关键词
米槠/丝栗栲/木荷/光合特性/最大净光合速率/光补偿点/光饱和点Key words
Castanopsis carlesii/C. fargesii/Schima superba/photosynthetic characteristics/maximum net photosynthetic rate/light compensation point/light saturation point分类
农业科技引用本文复制引用
曾伟,熊彩云,肖复明,邱凤英,余林,熊振宇,徐海宁..中亚热带常绿阔叶林优势树种幼树光合特性季节动态[J].南京林业大学学报（自然科学版）,2014,(5):157-160,4.基金项目
江西省林业科学院博士启动项目（2011521106）；江西省科技支撑计划重点项目（20111BBF60051）；江西省林业科学院青年基金项目 （）
