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当前位置: 首页 > 文章 > 滨海沙地3种防护林树种不同季节叶绿素荧光参数日动态及季相变化 西北林学院学报 2018,33 (5) 58-65
Position: Home > Articles > Diurnal and Seasonal Changes of Chlorophyll Fluorescence Parameters of Three Shelterbelts in Sandy Coastal Plain Areas Journal of Northwest Forestry University 2018,33 (5) 58-65

滨海沙地3种防护林树种不同季节叶绿素荧光参数日动态及季相变化

作  者：
葛露露;孟庆权;林宇;何宗明;胡欢甜;邱岭军
关键词：
叶绿素荧光参数;日动态;季相变化;滨海沙地;防护林树种
摘  要：
为评估滨海沙地木麻黄、湿地松和尾巨桉对滨海沙地气候环境的适应性,对这3种防护林树种不同季节叶绿素荧光参数日动态及季相变化进行研究。结果表明,一天中,木麻黄的初始荧光(F_o)最低,湿地松的PSⅡ最大光能转换效率(F_v/F_m)和潜在活性(F_v/F_o)均最低,且都不受季节影响。一年四季中,3种防护林树种的最大荧光(F_m)均表现为尾巨桉>湿地松>木麻黄,且季相变化均呈单峰变化规律,木麻黄的F_o、F_m均最小,尾巨桉的F_m、F_v均最大,湿地松的F_v/F_m、F_v/F_o均最小,表明湿地松开放的PSⅡ反应中心的光量捕捉效率低于木麻黄和尾巨桉。结合林分生长情况可知湿地松受环境胁迫,对滨海沙地环境的适应能力较木麻黄和尾巨桉差。
译  名：
Diurnal and Seasonal Changes of Chlorophyll Fluorescence Parameters of Three Shelterbelts in Sandy Coastal Plain Areas
作  者：
GE Lu-lu;MENG Qing-quan;LIN Yu;HE Zong-ming;HU Huan-tian;QIU Ling-jun;College of Forestry,Fujian Agriculture and Forestry University;Changle Dahe State-owned Protection Forest Farm of Fujian Province;
关键词：
chlorophyll fluorescence parameter;;diurnal change;;seasonal change;;sandy coastal plain area;;shelterbelt construction species
摘  要：
In order to evaluate the adaptability of Casuarina equisetifolia,Pinus elliottii and Eucalyptus urophylla×E.grandis to the climate of coastal sand environment,we investigated the diurnal and seasonal changes of chlorophyll fluorescence parameters of three shelterbelt construction species.The results showed that,in one day,the initial fluorescence(F_o)of C.equisetifolia was the lowest,the maximum energy conversion efficiency(F_v/F_m)and potential activity(F_v/F_o)of PSⅡof P.elliottii were the lowest,and they were not affected by the season.In the four seasons of a year,the values of the maximum fluorescence(F_m)of the three species were all characterized by E.urophylla×E.grandis>P.elliottii>C.equisetifolia,and the seasonal changes showed a unimodal variation.The Foand F_m of C.equisetifolia were the lowest,and the Fmand Fvof E.urophylla×E.grandis were the highest,and the F_v/F_m and F_v/F_o of P.elliottii were the lowest.It was indicated that P.elliottii's energy capture efficiency of opening PSⅡ reaction center was lower than that in C.equisetifoliaand E.urophylla×E.grandis.It was known that P.elliottii was subjected to environmental stress according to the growth of stand,and its adaptability to the coastal sandy environment was less than those of C.equisetifoliaand E.urophylla×E.grandis.

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