侧柏年轮宽度和年轮密度对气候变化的响应.pdfVIP

42 7 Vol.42, No.7 2 0 0 6 7 SCIENTIA SILVAE SINICAE Jul., 2 0 0 6 黄荣凤　赵有科　吕建雄　鲍甫成 (　 100091) 　:　, 。 :。 10 9 58.45%, 77.81%。 , 。 , , 。 , 7 。 , 。 :　 ;;;; :S781.45　　　:A　　　:1001-7488(2006)07-0078-05 Response of Ring Width and Ring Density of Platy cladus orientalis to Climate Change in Beijing Huang Rongfeng　Z ao Youke　LǜJianxiong　Bao Fuc eng (Research Institute of Wood Industry, CAF 　Beijing 100091) Abstract:　 Response of ring widt and ring density to climate variance was studied by t eories and tec niques of dendroc ronology including response functions analysis and multiple regression analysis for Platycladus orientalis in Beijing, C ina.T e results s owed t at ring widt series and ring density series of P .orientalis was sensitive to climate variance.T e climate response models were establis ed wit mean mont ly temperature and total mont ly precipitation from t e preceding November to t e current October.T e models explained 58.45%and 77.81%of t e ring widt total variance and ring density total variance, respectively.It was found t at ring widt as a significant positive response to precipitation and a significant negative response to temperature from June toAugust during t e current growing season.T e reverse was true to t e ring density, it ad a negative response to temperature and a significant positive response to precipitation.Response of ring widt and ring density to climate variance was evident especially July.T e results indicated bot t e ring widt and t e ring density of P . orientalis are very useful variables for t e study of dendroclimatology. Key words:　Platycladus orientalis ;ring widt ;ring density;climate variance;response 、 。, , 、, 。, , 。 , , , 。 , (Fritts, 1976; Sc weingru