辽西地区水分亏缺与树木生长关系  

Relationship between moisture deficiency and growth of trees in western Liaoning

作　　者：周葆果[1] 

机构地区：[1]中国科学院沈阳应用生态研究所,辽宁沈阳110015

出　　处：《辽宁工程技术大学学报（自然科学版）》2008年第6期947-948,共2页Journal of Liaoning Technical University (Natural Science)

基　　金：辽宁省重大科技攻关项目(2006207001)

摘　　要：利用修正的Thornthwaite最大蒸发力公式,计算了辽西地区不同市的水分亏缺量。各市最大潜在蒸发散计算结果是:朝阳1180.6 mm,锦州1146.0 mm,葫芦岛1140.1 mm,阜新1030.3 mm;水分亏缺量计算结果为:朝阳-658.3 mm,锦州-538.4 mill,葫芦岛-544.8 mm,阜新-626.9 mm。利用美国spss数理统计软件计算了油松与蒙古栎的胸径连年生长量和对应的各年1—12月份的月均温、月降雨量、平均相对湿度的回归关系,表明油松生长与温度紧密,蒙古栎生长与水分关系紧密。Moisture-deficiency capacities in different cities of western Liaoning were calculated by means of modified Thomthwaite maximum evaporation capacity formula. The calculation results of maximum potential evapotranspirafion index for each city were as follows： Chaoyang 1180.6rnm, Jinzhou 1146.0mm, Huludao 1140.1mm, Fuxin 1030.3mm. The calculation results of moisture-deficiency capacities were -658.3 mm for Chaoyang, -538.4mm for Jinzhou, -544.8mm for Huludao and -626.9mm for Fuxin, respectively. Meanwhile, regression relationship of DBH annual growth ofPinus tabulaeformis and Quercus mongolica and average monthly temperature, monthly rainfall and average relative moisture from January to December in each year were calculated by using USA spss statistic software. The results indicate that the growth ofPinus tabulaeformis was closely correlated with temperature, and growth of Quercus mongolica was closely correlated with water.

关 键 词：水分亏缺 蒸发散 树木生长 辽西地区 

分 类 号：S161[农业科学—农业气象学]