九龙山冬季侧柏人工林林分结构的温湿效应  

Effects of different structures of Platvcladus orientalis plantation on temperature and humidity in winter in Jiulong mountain

作　　者：尹准生 孙长忠[1] 赵明扬[1] 

机构地区：[1]中国林业科学研究院华北林业实验中心,北京102300

出　　处：《中南林业科技大学学报》2015年第3期94-99,共6页Journal of Central South University of Forestry & Technology

基　　金：华林中心科学试验示范林功能恢复与提升研究(CAFYBB2012004);国家自然科学基金项目"黄土高原半干旱区人工植被水分生态环境效应规律研究"(30170769)

摘　　要：采用定位观测的方法,于2013-2014年冬季对北京九龙山侧柏人工林进行温度和湿度的数据采集,进而分析不同结构类型（郁闭度、枝下高）侧柏林的温、湿度特征及差异。结果表明：（1）林分平均最高温度和平均日差值呈现的规律为：1号（郁闭度0.3-0.4,枝下高1/2）〉2号（郁闭度0.3-0.4,1/3枝下高）〉3号（郁闭度0.5-0.6,1/2枝下高）〉4号（郁闭度0.5-0.6,1/3枝下高）〉5号（郁闭度0.7-0.8,1/2枝下高）〉6号（郁闭度0.7-0.8,1/3枝下高）,平均最低温则相反。（2）温度日差值的方差分析结果表明各条件下差异显著,多重t检验结果显示除1号样地和2号样地以及5号样地和6号样地之间无显著差异外,其他样地间均差异显著。（3）不同结构类型林分平均最高、最低相对湿度顺序为：1号〈2号〈3号〈4号〈5号〈6号;相对湿度日差值方差分析结果不显著。The method of positioning observation was applied, the data of temperature and humidity ofPlatvcladus orientalis plantation with different structures （different canopy density and different height under branch） were observed in Jiulong Moutain of Beijing in the winter from in 2013 to 2014, and their characteristics and differences under different conditions were analyzed. （1） The order of average maximum temperature and average daily differences presented as follows： No.lstand （canopy density of 0.3 to 0.4, height under branch of 1/2） 〉 No.2 （canopy density of 0.3 to 0.4, height under branch of 1/3） 〉 No.3 （canopy density of 0.5 to 0.6, height under branch of 1/2） 〉 No.4（canopy density of 0.5 to 0.6, height under branch of 1/3） 〉 No.5（canopy density of 0.7 to 0.8, height under branch of 1/2） 〉 No.5（eanopy density of 0.7 to 0.8, height under branch of 1/3）, while that of the average minimum temperature got the opposite result. （2）The average daily difference of temperature had significant differences by the variance analysis, and the multiple t-test showed that plots were significantly different from each other apart from the two pairs （No.land No.2, No.5 and No.6）. （3）The daily relative humidity under different conditions was not significant by the variance analysis; the average maximum and minimum relative humidity of different structure type stand both ranked in ascending ordering as that No.1 〈 No.2 〈 No.3 〈 No.4 〈 No.5 〈 No.6.

关 键 词：侧柏人工林 林分结构 温湿效应 北京九龙山 

分 类 号：S791.38[农业科学—林木遗传育种]