油茶林分光合特性的研究  

Study of photosynthetic characteristics in Camellia oleifera stand

作　　者：李建安[1] 何志祥[1] 孙颖[1] 吕芳德[1] 胡芳名[1] 杨伟[1] 刘儒[1] 郜爱玲[1] 陈正文 陈瑶 廖芳 

机构地区：[1]中南林业科技大学,湖南长沙410004 [2]祁阳县林业局,湖南祁阳426100

出　　处：《中南林业科技大学学报》2010年第10期56-61,共6页Journal of Central South University of Forestry & Technology

基　　金："十一五"国家林业科技支撑计划项目(2009BADB1B05-01);湖南省教育厅青年基金(09B111)

摘　　要：对祁阳县油茶现有林分的光合性能指标进行了分析研究。结果表明,粗放经营模式下油茶成年林分的净光合速率呈"双峰";不同品种类型、不同立地条件和不同改造措施下的油茶林分在净光合速率、水分利用率、气孔限制值等生理指标方面存在明显的差异,这些生理指标的综合作用决定了油茶的光合特性;垦复加施肥的改造方式对改善油茶光合性能具有很好的作用;土壤肥力对油茶光合性能影响亦大;红球品种类型的光合效能最好。The photosynthetic characteristics of Camellia oleifera stands in Qiyang County of Hunan Province were investigated,and the photosynthetic characteristics indexes were also studied.The results indicate that the curve of net photosynthetic rate（Pn） of the mixed Camellia oleifera forests showed double peak change;there were obvious differences for the Camellia oleifera forests in net photosynthetic rate,water use efficiency and stomatal limitation value etc.under the conditions of different variety types,site conditions and modification measures,and the synthetically effect of all these physiological indexes decided the photosynthetic characteristics of Camellia oleifera;the fertilization and reclaim both improved the photosynthetic characteristics of Camellia oleifera,and the soil fertility was the biggest influence factor to the photosynthesis;the photosynthesis of the red-ball variety of Camellia was the best.

关 键 词：经济林 油茶林分 光合特性 湖南祁阳 

分 类 号：S794.4[农业科学—林木遗传育种]