[1]余峰,陈林,王峰,等.宁夏中部干旱带人工柠条茎流及蒸腾特征研究[J].水土保持研究,2011,18(02):143-147.
　YU Feng,CHEN Lin,WANG Feng,et al.The Study on Sap Flow and Transpiration of Artificial Caragana korshinkⅡ in the Arid Area of Central Ningxia Hui Autonomous Region[J].Research of Soil and Water Conservation,2011,18(02):143-147.
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宁夏中部干旱带人工柠条茎流及蒸腾特征研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 18 期数: 2011年02期 页码: 143-147 栏目: 出版日期: 2011-04-20
Title:
The Study on Sap Flow and Transpiration of Artificial Caragana korshinkⅡ in the Arid Area of Central Ningxia Hui Autonomous Region
作者:
余峰1, 陈林2, 王峰2, 刘华2, 杜建民2, 郭永忠2, 李浩霞2
1. 宁夏回族自治区治沙退耕站, 银川 750002;
2. 宁夏农林科学院 荒漠化治理研究所, 银川 750002
Author(s):
YU Feng1, CHEN Lin2, WANG Feng2, LIU Hua2, DU Jian-min2, GUO Yong-zhong2, LI Hao-xia2
1. The Desert Control and Returning Farmland Station of Ningxia Hui Autonomous Region, Yinchuan 750002, China;
2. Institute of Desertification Control, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750002, China
关键词:
人工柠条; 茎流; 蒸腾; 宁夏
Keywords:
artificial Caragana korshinskⅡ; sap flow; transpiration; Ningxia Hui Autonomous Region
分类号:
Q948.1;S793.3
摘要:
采用包裹式茎流测定系统，2010年7月在宁夏盐池对人工栽植的柠条液流蒸腾和环境因子进行了昼夜连续观测，建立了柠条蒸腾的回归模型。结果表明：白天枝条液流速率与枝条的粗细呈正相关，枝条间的液流速率差异在白天大，夜间小；在晴天观测到的蒸腾耗水率日变化曲线出现午间降低现象。柠条在夜间存在液流和微弱蒸腾作用。柠条蒸腾耗水率与太阳辐射、气温、空气饱和差和空气相对湿度具有显著的相关性，得到了蒸腾耗水率与环境因子的的回归方程。
Abstract:
In July of 2010, daily sap flow of Caragana korshinskⅡ was measured by Dynagage Systems, and the microclimate was monitored by Vantage Pro 2 Station in the stand of Caragana korshinskⅡ plantation located in Yanchi County of Ningxia Hui Autonomous Region. The regressive models of transpiration estimated from sap flow were established based on the field observation data. The results showed that there was more sap flow flux founded in bigger diameter branch than that of in smaller one. The difference of sap flow flux between branches is much more significant in the daytime than that of in the night. It was found that there was a noon break phenomenon in the daily course of transpiration in the sunny day. Night-time sap flow and weak transpiration had been detected by Dynagage Systems. Transpiration of Caragana korshinskⅡ was well correlated with solar radiation, air temperature, vapor pressure deficit (VPD), relative humidity. The regressive equations between the transpiration and environmental factors were better fitted with observed data.

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备注/Memo

收稿日期:2010-10-8;改回日期:2010-12-15。
作者简介:余峰（1965- ），男，宁夏平罗县人，高级工程师，主要从事干旱区荒漠化治理、干旱区造林及植被恢复与重建等方面的研究。E-mail：chenlin198388@163.com

更新日期/Last Update: 1900-01-01