江西农业大学学报Issue(3)：570-574,581,6.DOI:10.13836/j.jjau.2014093
南岭栲等常绿阔叶林优势树种光合特性分析
Analysis of Photosynthetic Characteristics of Dominant Tree Species (Castanopsis fordii Hance etc.) in Evergreen Broadleaved Forest
摘要
Abstract
Based on the modified exponential model , the photosynthetic parameters of Castanopsis fordii Hance, Castanopsis fissa Rehdet Wils and Castanopsis fargesii that were dominant tree species in evergreen broad-leaved forest were estimated .The light saturation points of Castanopsis fordii Hance and Castanopsis fissa Re-hdet Wils were 1 589.37 and 1 688.33 μmol/(m2· s) respectively,not significantly different from each other,but both more than that of Castanopsis fargesii’s 1 246.27 μmol/(m2· s).The light compensation point of Castanopsis fissa Rehdet Wils was 23.8 μmol/( m2 · s ), which was less than that of Castanopsis fordii Hance ’ s 35.06 μmol/(m2· s),but both not significantly different from that of Castanopsis fargesii’s 32.67 μmol/(m2· s). The apparent light quantum efficiency of Castanopsis fissa Rehdet Wils was 0.074,which was not significantly differ-ent from that of Castanopsis fordii Hance’s 0.068,but they were both more than that of Castanopsis fargesii’s 0.053.The maximum net photosynthetic rate of Castanopsis fordii Hance was 9.45 μmol/(m2· s),more than that of Castanopsis fargesii’s 6.07 μmol/(m2· s)and Castanopsis fissa Rehdet Wils’s 7.31μmol/(m2· s), but the later two were not significantly different from each other .The dark respiration rate of Castanopsis fordii Hance was the maximum,0.83 μmol/(m2· s),and the next was that of Castanopsis fargesii’s 0.59 μmol/(m2 · s),the smallese was that of Castanopsis fissa Rehdet Wils’s 0.29 μmol/(m2· s).The result of comprehen-sive comparison was that the photosynthetic capacity and adaptability to light environment of Castanopsis fordii Hance and Castanopsis fissa Rehdet Wils were strong ,and had good growth potential .关键词
常绿阔叶林/光合特性/最大净光合速率/光补偿点/光饱和点Key words
dominant tree species in evergreen broad-leaved forest/photosynthetic characteristics/maxi-mum 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,熊振宇,徐海宁..南岭栲等常绿阔叶林优势树种光合特性分析[J].江西农业大学学报,2014,(3):570-574,581,6.基金项目
国家公益性行业（气象）科研专项（ GYHY201406034）、江西省科技支撑计划重点项目（20111 BBF60051）、江西省财政林业重大专项（200651010301）、江西省科技厅院所配套项目（NO．20123BBA13039）和江西省林业科学院博士启动项目 （）
