WANG Chen,YU Xin-xiao,CHEN Li-hua,et al.Response of Stem Radial Variation That Caused by Sapflow and Meteorological Factors[J].Research of Soil and Water Conservation,2010,17(01):45-49,55.
树干径向变化对茎液流以及气象因子的响应
- Title:
- Response of Stem Radial Variation That Caused by Sapflow and Meteorological Factors
- Keywords:
- stem perimeter; stem perimeter growth; sap flow velocity; meteorological factors; soil water potential
- 分类号:
- Q945.17;P463.22
- 摘要:
- 应用改进的SF-L型热扩散式树液流测定装置和DC型植物生长测量仪,结合北京2007年6-10月的气象数据,探讨了北京山区油松、侧柏树干茎周长动态因素与液流速率和气象因子之间的相关关系,并运用树木径向变化周期分段法将树木径向生长量从径向变化过程中分离开,结果表明：(1)油松、侧柏茎周长变化与液流速率的关系显著(P<0.01),油松为正相关,侧柏为负相关.(2)空气水汽压亏缺、日温差、空气湿度和日照时数与油松、侧柏茎周长变化关系显著,但在回归拟合过程中侧柏的解释因子只有空气水汽压亏缺和日平均风速,且解释程度比较低(0.356).(3)油松、侧柏茎周长生长量的拟合水平较高,且影响气象因子相同,侧柏的液流速率也成为解释因子之一.水汽压亏缺、空气温湿度、日照时数、土壤水势和风速对树木的生长起到决定性的作用.
- Abstract:
- By the Application of improved SF-L type thermal dissipation sap flow velocity measuring device and DC-type plant growth measuring device,with the meteorological data from June to October in 2007 of Beijing,we discussed the relationship between the meteorological factors and the stem perimeter dynamic factors and sap flow velocity of Pinus tabulaeformi,Platycladus orientalis in Beijing mountain areas.Extract radial growth from the stem circadian cycle,by divide the circadian cycle into phases.The results show that:(1)There is remarkable correlation between the sap flow velocity and the stem perimeter(P<0.01),positive correlation for Pinus tabulaeformis and negative correlation for Platycladus orientalis.(2)The stem perimeter changes is remarkably correlated to air vapor pressure deficit,daily temperature difference,air humidity and sunshine hours.But in the regression fitting,the explanations for Platycladus orientalis only include air vapor pressure deficit and daily wind speed,and in low degree(0.356).(3)In the research of Pinus tabulaeformi and Platycladus orientalis,the fitness of stem perimeter growth is high,meteorological impact factors are identical,and the sap flow velocity in Platycladus orientalis becomes one of the explanations.
参考文献/References:
[1] 范玮熠,王孝安.树木年轮宽度与气候因子的关系研究进展[J].西北植物学报,2004,24(2):345-351.
[2] 张寒松,韩士杰,李玉文,等.利用树木年轮宽度资料重建长白山地区240年来降水量的变化[J].生态学杂志,2007,26(12):1924-1929.
[3] 陈振举,何兴元,陈玮,等.沈阳福陵油松年轮对全球性气温波动的响应[J].应用生态学报,2007,18(9):1946-1952.
[4] 范敏杰,袁玉江,魏文寿,等.用树木年轮重建伊犁南天山北坡西部的降水量序列[J].干旱区地理,2007,30(2):268-273.
[5] 邵雪梅,范金梅.树轮宽资料所指示的川西过去气候变化[J].第四纪研究,1999(1):81-89.
[6] 熊伟,王彦辉,于澎涛,等.六盘山南坡华北落叶松(Larix principis-rupprechtii)树干直径生长及其对气象因子的响应[J].生态学报,2007,27(2):432-441.
[7] Akkemikü.Dendroclimatology of umbrella pine(Pinus pine L.) in Istanbul[J].Tree-Ring Bulletin,2000,56:17-20.
[8] Campbell G S,Norman J M.An introduction to environment biophysics[M].New York:Spring-Verlag,Berlin,Heidelberg,1998:36-51.
[9] Deslauriers A,Morin H,Urbinati C,et al.Daily weather response of balsam fir stem radius increment from dendrometer analysis in the boreal forests of Quebec[J].Trees:structure and function,2003,17(6):477-484.
[10] Downes G,Beadle C,Worledge D.Daily stem growth patterns in irrigated Eucalyptus globulus and E.nitens in relation to climate[J].Trees,1999,14:102-111.
[11] Larsen C P S,MacDonald G M.Relations between tree-ring widths,climate,and annual area burned in the boreal forest of Alberta[J].Canadian Journal of Forest Research,1995,25:1746-1755.
[12] Mäkinen H P.Nöjd K Mielikäinen.Climatic signal in annual growth variation in damaged and healthy stands of Norway spruce(Picea abies(L) Karst.) in south Finland[J].Trees,2001,15:177-185.
[13] Oberhuber W,Stumbäck M,Kofler W.Climate-tree growth relationships of Scots pine stands(Pinus sylvestris L.) exposed to soil dryness[J].Trees,1998,13:19-27.
[14] Rolland C.Tree-ring and climate relationships for Abies alba in the internal Alps[J].Tree-Ring Bulletin,1993,53:1-11.
[15] Sheppard P R,Graumlich L J,Conkey L E.Reflected-light image analysis of conifer tree rings for reconstructing climate[J].Holocene,1996,6:62-68.
[16] Szeicz,J M,MacDonald G M.A 930-year ring-width chronology from moisture-sensitive white spruce(Picea glauca Moench) in the northwestern Canada[J].The Holocene,1996,6:345-351.
[17] 郑淑霞,上官周平.树木年轮与气候变化关系研究[J].林业科学,2006,42(6):100-107.
[18] Fritts H C.The relevance of dendrographic studies to tree ring research[J].Tree Ring Bull.,1962,24:9-11.
备注/Memo
收稿日期:2009-7-27。
基金项目:国家“十一五”科技支撑计划项目(2006BAD03A0201);北京市科委重大项目(D0706001000091)
作者简介:王琛(1984- ),男,河北衡水人,硕士生,主要研究方向:水土保持、森林水文.E-mail:wangchen1119@163.com
通讯作者:余新晓(1961- ),男,教授,博士生导师,主要研究方向:水土保持、森林水文等.E-mail:yuxinxiao111@126.com