闽东沿海6种相思冬季叶绿素荧光参数日动态  

Diurnal Dynamic of Chlorophyll Fluorescence Parameters of Six Acacia species in the Coastal Shelter Forest in Winter

作　　者：官国栋 周锦业[2] 林宇 张勇 丁国昌[1] 何宗明[1] 阮少宁[1] 李树斌[1] 林思祖[1] 

机构地区：[1]福建农林大学林学院,福建福州350002 [2]广西农业科学院花卉研究所,广西南宁530007 [3]福建省长乐大鹤国有防护林场,福建长乐350212

出　　处：《福建林业科技》2014年第2期18-22,共5页Journal of Fujian Forestry Science and Technology

基　　金：福建省林木种苗科技攻关项目(黑木;卷荚及厚荚相思良种选育与快繁技术研究;闽林科[2009]4号);福建省林业厅科研项目(福州市沿海沙地不同相思类树种固碳效益研究;闽林科[2012]3号)

摘　　要：以福建省长乐市大鹤国有防护林场的6种相思为对象,进行叶绿素荧光参数的冬季日变化规律观测。结果显示:各相思树种黑暗中最大可变荧光强度(FV)均于午间及午后达到1 d中相对较大值;1 d内PSⅡ最大光能转换效率和PSⅡ潜在活性,肯氏相思整体要高于其余5种相思,而厚荚相思、大叶相思、马占相思相对较低。结合其林分保存率可知,肯氏相思、纹荚相思、卷荚相思在冬季较适应闽东沿海沙地生境。This paper compared the winter diurnal variation rules of chlorophyll fluorescence parameters of 6 Acacia species in Dahe State-Owned Shelterbelts Field in Changle City of Fujian Province.The result showed that the chlorophyll fluorescence parameters Fv of all Acacia tree species from midday to afternoon achieved a relatively large value of the day ;in one day ,the maximum light conve-rtion efficiency of PSII and its potential activity of Acacia cunninghamii was higher than the rest of the 5 kinds of Acacia on the whole,however,Fv/Fm and Fv/Fo values of A.crassicarpa,A.auriculiformis and A.mangium were relatively low.Combined with the preserving rate of trees , A.cunninghamii,A.aulacocarpa and A.cincinnata were more adapt to the coastal sand in the winter.

关 键 词：相思树种 冬季 荧光参数 日动态 闽东沿海 

分 类 号：S727.23[农业科学—林木遗传育种]