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[1]YANG Zhi-ge,SHI Yu,YU Xin-xiao,et al.Characteristic of Stem Sap Flux Velocity of Individual Trees and Its Response to Environmental Factors in the Beijing Mountain Area[J].Research of Soil and Water Conservation,2012,19(02):195-200.

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Characteristic of Stem Sap Flux Velocity of Individual Trees and Its Response to Environmental Factors in the Beijing Mountain Area

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 02 Page number: 195-200 Column: Public date: 2012-04-20

Title:: Characteristic of Stem Sap Flux Velocity of Individual Trees and Its Response to Environmental Factors in the Beijing Mountain Area

Author(s):: YANG Zhi-ge¹, SHI Yu², YU Xin-xiao¹, ZHANG Yi¹, CHEN Jie¹, WANG Qi³; 1. Key Laboratory of Soil and Water Conservation & Combating Desertification of Ministry of Education, School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China;
2. Academy of Forest Inventory and Planning, State Forestry Administration, Beijing 100012, China;
3. Survey and Planning Institute of State Forestry Administration, Beijing 100714, China

Keywords:: Beijing mountain area; sap flow velocity; variation characteristic; environmental factors; transpiration

CLC:: S727.2;Q945.79

DOI:: -

Abstract:: The sap flow velocity and its response to the meteorological factors of Platycladus orientalis,Quercus variabilis,Pinus tabulaeformis and Robinia pseudoacacia were studied by heat dissipation probe technique from June to September in 2010.The study site was in Miaofengshang Forest.The results indicated that the stem sap flow velocity of all the trees in the typical clear day changed with a single peak type curve,the highest sap flow velocity was 0.079 3cm/min for Platycladus orientalis,while the smallest one was 0.048cm/min for Robinia pseudoacacia.The variation between each month has great differences,but they all reached the maximum value in August.Combined with the correlation analysis,the sap flow velocity was positively correlated with the solar radiation,the temperature,VDP,the soil moisture and soil water potential,whereas the relative humidity was negative correlation and the correlation with wind speed and soil temperature was uncertain.The most important environmental factor was solar radiation,while the influence on Quercus variabilis and Robinia pseudoacacia was greater than it on Platycladus orientalis,Quercus variabilis.The environmental factors had more effects on broadleaved trees than coniferous trees.Multiple linear regression analysis was employed to establish the liner model of four different trees stem sap flow velocity.

References:: [1] 马克平,陈灵芝,于顺利,等.暖温带森林生态系统结构与功能的研究[M].北京:科学出版社,1997.
[2] Tyree M T.A dynamic model for water now in a single tree:evidence that models must account for hydrolic architecture[J].Tree Physiology,1988(4):195-227.
[3] 王华田,马履一.树木耗水性比较的研究[J].北京林业大学学报,2003,25(1):1-6.
[4] Sperry J S,Hake U G,Ren R,et a1.Water deficits and hydraulic limits to leaf water supply[J].Plant,Cell and Environment,2002,25:251-263.
[5] 熊伟,王彦辉,徐德应,等.宁南山区华北落叶松人工林蒸腾耗水规律及其对环境因子的响应[J].林业科学,2003,39(2):1-7.
[6] Schaeffer S M,Williams D G,Goodrich.Transpiration of cottonwood/willow forest estirnated from sap flux[J].Agric.For.Meteorol.,2000,105(1/3):257-270.
[7] 张小由,龚家栋,周茅先,等.胡杨树干液流的时空变异性研究[J].中国沙漠,2004,24(4):489-492.
[8] 孙慧珍,周晓峰,康绍忠,等,应用热技术研究树干液流进展[J].应用生态学报,2004,15(6):1074-1078.
[9] 奚如春,马履一,王瑞辉,等.林木耗水调控机理研究进展[J].生态学杂志,2006,25(6):692-697.
[10] 马玲,赵平,饶兴权,等.马占相思树干液流特征及其与环境因子的关系[J].生态学报,2006,25(9):2145-2151.
[11] 徐军亮.京西山区油松、侧柏单木耗水环境影响因子评价与模拟[D].北京:北京林业大学,2006.
[12] 王华田,马履一.利用热扩式边材液流探针(TDP)测定树木整株蒸腾耗水量的研究[J].植物生态学报,2002,26(6):661-667.
[13] 周孝明,陈亚宁,李卫红,等.塔里木河下游胡杨树干液流特征研究[J].中国沙漠,2008,28(4):673-678.
[14] 周海光,刘广全,焦醒,等.黄土高原水蚀风蚀复合区几种树木蒸腾耗水特性[J].生态学报,2008,28(9):4568-4573.
[15] 于占辉,陈云明,杜盛.黄土高原半干旱区人工林刺槐展叶期树干液流动态分析[J].林业科学,2009,45(4):53-58.

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