六盘山北侧华北落叶松树干直径生长变化及其对环境因子的响应*

doi:10.11707/j.1001-7488.20070901

Scientia Silvae Sinicae ›› 2007, Vol. 43 ›› Issue (09): 1-6.doi: 10.11707/j.1001-7488.20070901

Stem Diameter Growth of Larix principis-rupprechtii and Its Response to Meteorological Factors in the North of Liupan Mountain

Guan Wei¹,Xiong Wei¹,Wang Yanhui¹,Yu Pengtao¹,He Changqing²,Du Apeng²,Liu Hailong³

1．Research lntitute of Forest Ecology，Environment and Protection，CAF Beijing 100091；Agriculture Uniuerity of Hebei Baoding 071001；3．Inner Mongolia Agricultural University Huhhot 010019

Received:2006-09-14 Revised:1900-01-01 Online:2007-09-25 Published:2007-09-25

Abstract

Abstract:

The growth pattern in stem diameter of nine sample trees of Larix principis-rupprechtii was measured by dendrometerand the response of which to the meteorological factors was researched from May to November in 2005 in the north of Liupan Mountain．Ningxia．The results showed：The maximum of stem diameter was distributed from 6：00 to 9：00 and the minimum one was distributed from 16：00 to 20：00．The stem grows more quickly in former days than in after days of growth period．The stem growth stopped from the last ten days of August．And the higher dominance degree of the sample trees the faster stem of which grows．The pattern in cumulative stem diameter growth could be fitted by the power function satisfactorily．And the correlation coefficient was between 0．78 and 0．92．Principle component analysis to meteorological factors showed that the temperature and moisture were the main effect factors to the stem diameter growth．Combine with the partial correlation analysis，the maximum daily temperature，the air relative humidity，average daily solar radiation and the soil water content could be selected to establish the linear model．

Key words: Liupan Mountain, Larix principis-rupprechtii, stem diameter, meteorological factors, soil water content

Guan Wei;Xiong Wei;Wang Yanhui;Yu Pengtao;He Changqing;Du Apeng;Liu Hailong. Stem Diameter Growth of Larix principis-rupprechtii and Its Response to Meteorological Factors in the North of Liupan Mountain[J]. Scientia Silvae Sinicae, 2007, 43(09): 1-6.

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Stem Diameter Growth of Larix principis-rupprechtii and Its Response to Meteorological Factors in the North of Liupan Mountain

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