福州旗山常绿阔叶混交林空气含氧量日变化特征  

Diurnal Oxygen Concentration Changes in Mixed Evergreen Broad-Leaved Forest at Qishan,Fuzhou

作　　者：王艳英[1] 王成[1] 董建文[2] 王茜[1] 林双毅[2] 傅伟聪 朱丽雪[2] 

机构地区：[1]中国林业科学院林业研究所国家林业局森林培育重点实验室国家林业局城市森林研究中心,北京100091 [2]福建农林大学园林学院,福州350002

出　　处：《中国城市林业》2014年第4期6-9,共4页Journal of Chinese Urban Forestry

基　　金：国家林业公益性行业科研专项"美丽城镇森林景观的构建技术研究与示范"(2014040301)

摘　　要：运用PTM400氧气分析仪和气象测定仪对福州旗山森林公园中常绿阔叶混交林和停车场进行24小时连续同步观测,据此分析出2类观测点内空气含氧量的日动态变化规律以及常绿阔叶混交林中空气含氧量与气象因子之间的关系。结果显示:1)2类观测点内空气含氧量一天24小时的变化规律相似,呈抛物线形曲线变化,峰值都出现在下午15∶00,呈现出"昼高夜低"的变化规律;但在常绿阔叶混交林中,其各时段空气含氧量都比停车场高,且差异显著。2)常绿阔叶混交林空气氧气含量与空气温度呈极显著正相关,与光照强度呈显著相关,与空气湿度呈及显著负相关,与平均风速的相关性不显著。空气含氧量与气象因子的相关系数排序为空气温度>空气湿度>光照强度>风速。PTM400 oxygen analyzer and meteorological measuring instrument were applied for 24-hour continuous simultaneous observation in the mixed evergreen broad-leaved forest and parking lot of Qishan Forest Park, Fuzhou. The observation results were based on to analyze the diurnal dynamics of oxygen concentrationat the two observation points and the relation between oxygen concentration at mixed evergreen broad-leaved forest and meteorological fac- tors. The results indicated： （ 1 ） The oxygen concentration at the two observation points showed the similar dynamics, displaying parabolic curve. The peaks appeared in 15：00, showing a change that oxygen concentration was high at day but low at night, but the Oxygen concentration was always higher in evergreen broad-leaved forest than in the parking lot with significant difference. （2） The atmospheric oxygen concentration in evergreen broad-leaved forest was signifi- candy positively correlated with air temperature, significant correlated with the light intensity, significantly negatively correlated with air humidity and not significantly correlated with average wind speed. The correlation coefficients with meteorological factors were ranked as air temperature 〉 air humidity 〉 light intensity 〉 wind speed.

关 键 词：空气含氧量 动态变化 气象因子 阔叶混交林 森林公园 森林浴 

分 类 号：S716[农业科学—林学] S718.5