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四川桤木树干液流规律研究
引用本文:孙建军,邓宗付,曾平生,武晓玉,程贵文,唐小强,刘苑秋.四川桤木树干液流规律研究[J].绿色科技,2013(11):1-4.
作者姓名:孙建军  邓宗付  曾平生  武晓玉  程贵文  唐小强  刘苑秋
作者单位:中国林科院亚热带林业实验中心;四川阿坝州科学技术研究院;江西农业大学园林与艺术学院;
基金项目:国家自然科学基金项目(编号:30560121);国家林业局新技术储备项目“典型生态区哉森林生态系统动态监测技术开发与应用”资助
摘    要:用热脉冲速度记录仪(Heat Pulse Velocity Recorder ,简称 HPVR)研究了14年生四川桤木树干液流的特点,并用Campbell自动气象站同步监测环境因子研究了树干液流与环境因子的关系,结果表明:四川桤木的单位面积的年液流通量为11.107kg/cm2;夜间有上升液流,可能存在根压;四川桤木的树干液流在春季是单峰曲线,在夏季是一条双峰曲线,有“午休”现象;四川桤木的树干液流与太阳辐射、温度有较好的生态学同步性。

关 键 词:四川桤木  树干液流  热脉冲

Study of Sap Flow Re of Alder of Sichuan
Institution:Sun Jianjun,Deng Zongfu,Zeng Pingsheng,Wu Xiaoyu,Chen Guiwen,T ang Xiaoqiang,Liu Wanqiu (1. Subtropical Forestry Experimental Center Chinese Academy of forestry ,jiangxi 336600, China ; 2. Sichuan Aba Prefecture Institute of science and technology, sichuan 624000, China 3. Jiangxi Agricultural University college of landscape and art ,jiangxi 330045 ,China)
Abstract:Thisarticle usesheat Pulse Velocity Recorder (HPVR)to study the characteristics ofsap flowof14-year old Alnus cremastogyme Burk ,and measures meteorological parameters and soil water contentsbymeans ofCampbellAutomatic WeatherStationin order toresearch on the relations ofsapflow and environmental fac-tors .The results show that :(1)The intensity of sap flow of Alnus cremastogyme Burkis11 .107kg/cm2 per year ;(2)The flow rate still happensduring the night ,indicating that Alnus cremastogyme Burkmight have root pressure ;(3) The sap flow rate behaves as a single -peaked curve in spring ,a two -peaked curve in summer ;(4)The sap flow of Alnus cremastogyme Burkhave a good ecology synchronization with the solar radiation intensity and temperature .
Keywords:alnus cremastogyme burk  sap flow  heat -pulse technology
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