[1]李少宁,陈波,鲁绍伟,等. 月尺度下杨树树干液流对环境因子的响应[J].西北林学院学报,2013,28(03):40-45.[doi:10.3969/j.issn.1001-7461.2013.03.07]
　LI Shao-ning,CHEN Bo,LU Shao-wei,et al. Response of Environmental Factors to Poplar Stem Sap Flow on a Monthly Basis[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2013,28(03):40-45.[doi:10.3969/j.issn.1001-7461.2013.03.07]
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 月尺度下杨树树干液流对环境因子的响应()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第28卷
期数:
2013年03期
页码:
40-45
栏目:
出版日期:
2013-05-30

文章信息/Info

Title:
 Response of Environmental Factors to Poplar Stem Sap Flow on a Monthly Basis
文章编号:
1001-7461(2013)03-0040-06
作者:
 李少宁; 陈波; 鲁绍伟; 潘青华; 张玉平; 王华
 （1.北京市农林科学院 林业果树研究所，北京 100093；2.河北农业大学 林学院，河北 保定 071000）
Author(s):
 LI Shao-ning;  CHEN Bo;  LU Shao-wei;  PAN Qing-hua;  ZHANG Yu-ping;  WANG Hua
 (1. Forestry and Pomology Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China; 2.College of Forestry, Agricultural University of Hebei, Baoding, Hebei 071000, China)
关键词:
 ; 杨树人工林; 热扩散法; 环境因子; 液流密度
Keywords:
 ; poplar plantation;  thermal dissipation probe;  environmental factor;  sap flow density
分类号:
S715.4
DOI:
10.3969/j.issn.1001-7461.2013.03.07
文献标志码:
A
摘要:
 以北京市大兴区榆伐镇大兴林场沙地107欧美杨（Populus×euramericana cv.“74/76”）人工林为研究对象，运用热扩散法（TDP）并结合自动气象站（HOBO）的连续观测，基于连续 1 a（2011.1-2011.12）的树干液流密度和空气温、湿度（Ta，RH）、太阳辐射（Rs）、土壤温度（T）、土壤含水量（SWC）和风速（w）等环境因子的测定数据，探讨月尺度下树干液流密度与环境因子的关系。结果表明：太阳辐射、空气温度、土壤温度和风速的最大均值分别是326.25 W·m-2、21.66 ℃、24.16 ℃和1.1 m·s-1，土壤含水量和空气湿度的最小均值分别是0.054 m3·m-3和54.1%；各环境因子与液流密度均呈良好的三次曲线关系，R＞0.714；太阳辐射、空气温度、土壤温度、风速与液流密度呈正相关，相关系数分别为0.82、0.705、0.962、0.578，土壤含水量、空气湿度与液流密度呈负相关，相关系数为-0.24和-0.911。可见，空气湿度、土壤温度和太阳辐射是影响液流最主要的因素。
Abstract:
 Taking a poplar plantation (Populus×euramericana cv. “74/76”) located in Yufa Towship of Daxing District, Beijing as research object,differences in the relationship between the stem sap flow density and environmental factors (including air temperature and humidity,solar radiation,soil temperature,soil water content, and wind speed) were investigated based on the monthly scaled data obtained from a one year continuous observation during January to December 2011 by adopting thermal dissipation probe combined with continuous observation of automatic weather station.With the similar stem sap flow,the average maximum values of solar radiation,air temperature,soil temperature and wind speed were 326.25 W·m-2,21.66 ℃,24.16 ℃ and 1.1 m·s-1,respectively, and the average minimum values of soil water content and air humidity were 0.054 m3·m-3 and 54.1%.respectively.Each environmental factor and sap flow density showed good cubic curve relationship with R＞0.714.Factors such as the solar radiation,air temperature,soil temperature and wind speed were positively correlated with the sap flow density,with the correlation coefficients of 0.82, 0.705, 0.962, and 0.578, respectively.The soil water content and the air humidity were negatively correlated to the sap flow density,with correlation coefficients of -0.24 and -0.911.It can be seen that the air humidity,soil temperature and solar radiation are the most important factors affecting the sap flow.

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备注/Memo

备注/Memo:
 收稿日期：2012-09-27  修回日期：2012-12-28
基金项目：北京市自然科学基金（6102005）。
作者简介： 李少宁，男，博士，副研究员，研究方向：森林生态服务功能与评价。E-mail：lishaoning@126.com
*通信作者：鲁绍伟，男，博士，研究员，研究方向：水土保持。E-mail：hblsw8@163.com
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