[1]张卫强,贺康宁,邓军涛,等.稳态气孔计法和整株称重法测定蒸腾速率的比较研究[J].水土保持研究,2007,14(06):192-194.
　ZHANG Wei-qiang,HE Kang-ning,DENG Jun-tao,et al.Comparison on the Transpiration Values Measured with Portable Steady Porometer Method and Whole-tree Weighing Method[J].Research of Soil and Water Conservation,2007,14(06):192-194.
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稳态气孔计法和整株称重法测定蒸腾速率的比较研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 14 期数: 2007年06期 页码: 192-194 栏目: 出版日期: 1900-01-01
Title:
Comparison on the Transpiration Values Measured with Portable Steady Porometer Method and Whole-tree Weighing Method
作者:
张卫强1, 贺康宁2, 邓军涛3, 周毅1, 钟锡均1, 李召青1
1. 广东省林业科学研究院, 广州 510520;
2. 北京林业大学 水土保持学院, 北京 100083;
3. 水利部 珠江水利委员会, 广州 510520
Author(s):
ZHANG Wei-qiang1, HE Kang-ning2, DENG Jun-tao3, ZHONG Xi-jun1, LI Zhao-qing1
1. Forest Research Institute of Guangdong Province, Guangzhou 510520, China;
2. College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China;
3. Pearl River Water Resource Commission, Guangzhou 510520, China
关键词:
稳定气孔计法; 整株称重法; 蒸腾速率; 黄土半干旱区
Keywords:
portable steady porometer method; whole-tree weighing method; transpiration rate; semi-arid region of Loess Plateau
分类号:
S718.3
摘要:
在黄土半干旱区，2004年生长季典型天气，采用盆栽试验，人为控制土壤水分，利用稳定气孔计法（Li-1600）与整株称重法（BP-3400精密天平），对侧柏、油松、刺槐和沙棘叶片蒸腾速率进行了测定。结果表明，随着土壤含水量的升高，叶片蒸腾速率上升；稳定气孔计测值恒大于整株称重的测值，两种方法测值的比值随土壤含水量的增加而升高，当土壤含水量达到田间持水量时，两种方法测定值的比值反而减小。7月，气孔计测值与整株称重测值之比，刺槐平均为2.50，沙棘为2.57；8月，侧柏为2.48，油松为2.28；10月，侧柏为1.19，油松为1.86，刺槐为1.53，沙棘为1.97，本研究可作为黄土半干旱区利用稳定气孔计研究林木蒸腾耗水的参考。
Abstract:
Transpiration rate of Platycladus orientalis, Pinus tabulaeformis, Robinia pseudoacacia and Hippophae rhamnoides were measured by portable steady porometer (Li-1600) and whole-tree weighing method (BP-3400) in growing season of 2004, artificially controlling water amount in pot experiment, in semi-arid region of the Loess Plateaus.It indicated that transpiration rate of leaves rose when soil water content increased; measured value of portable steady porometer were always higher than measured value of whole-tree weighing, the ratios of measured value of two methods rose with increasing soil water content, but reduced when soil water content reached field moisture capacity; the ratios of measured value of portable steady porometer and whole-tree weighing of Robinia pseudoacacia and Hippophae rhamnoides was 2.50 and 2.57 respectively in July, the ratios of measured value of portable steady porometer and whole-tree weighing of Platycladus orientalis and Pinus tabulae formiswas 2.48 and 2.28 respectively in August, the ratios of measured value of portable steady porometer and whole-tree weighing method of Platycladus orientalis, Pinus tabulaeformis, Robinia pseudoacacia and Hippophae rhamnoides was 1.19, 1.86, 1.53 and 1.97 respectively in October.The conclusion would be regarded as the reference of forest tree transpiration in semi-arid region of Loess Plateau.

参考文献/References:

[1] 刘奉觉, 郑世锴, 巨关升.树木蒸腾耗水测算技术的比较研究[J].林业科学, 1997, 33 (2):117-126.
[2] 杨文斌, 蒋士梅.半干旱地区四种针叶林蒸腾作用的研究[J].生态学杂志, 1991, 10 (3):18-21.
[3] 刘奉觉.用快速称重法测定杨树蒸腾速率的技术研究[J].林业科学研究, 1990, 3 (2):162-165.
[4] 巨关升, 刘奉觉, 郑世锴, 等.稳态气孔计与其它3种方法蒸腾测值的比较研究[J].林业科学研究, 2000, 13 (4):360-365.
[5] 孙鹏森, 马履一.水源保护林树种耗水特性研究与应用[M].北京:中国环境科学出版社, 2002:68-75.

备注/Memo

收稿日期:2006-12-22。
基金项目:国家自然科学基金项目（30371172）；教育部科学技术研究重大项目（10407）；广东省林业局科技专项
作者简介:张卫强，博士，主要从事生态环境工程。
通讯作者:贺康宁，教授，博士，博士生导师，主要从事林业生态工程建设抗旱造林技术研究。

更新日期/Last Update: 1900-01-01