树木蒸腾耗水测算技术的比较研究*

林业科学 ›› 1997, Vol. 33 ›› Issue (2): 117-126.

树木蒸腾耗水测算技术的比较研究^*

刘奉觉¹,郑世锴¹,巨关升¹,EdwardsWRN²,吴衍德³

1. 中国林业科学研究院林业研究所北京 100091
2. 新西兰皇家园艺食品研究所
3. 山东省沂南县林业局沂南 276300

收稿日期:1995-08-01 出版日期:1997-03-25 发布日期:1997-03-25

A STUDY ON COMPARISON OF MEASURING WATER-CONSUMPTION FOR TRANSPIRATION IN POPLAR

Fengjue Liu¹,Shikai Zheng¹,Guansheng Ju¹,WRN Edwards²,Yande Wu³

1. Forest Research Institute, Chinese Academy of Foresty Beijing 100091
2. Hort. and Food Research institute New Zealand
3. Forest Bureau of Yinan County, Shandong Province Yinan 276300

Received:1995-08-01 Online:1997-03-25 Published:1997-03-25

摘要/Abstract

摘要：

1989-1991年,分别在山东(Ⅰ-69杨)与宁夏(合作杨)人工林中,用五种方法(整树容器法、热脉冲法、快速称重法、稳态气孔计法和微气象法)进行了蒸腾耗水的比较测定,结果表明:1.以整树容器法测定的单株日耗水量为100%,则水分饱和下快称法相应值为130%-140%;气孔计法值为291%;热脉冲法值为90.14%。2.以热脉冲法测定的日耗水量为100%,则快称法的测值为88%(六年生树)与112%(二年生树)。3.气孔计法测值高于快称法,在宁夏干旱地区为后者的130%-190%,在山东较湿润地区为240%-320%。4.微气象法中午蒸腾值十分接近整树容器法与热脉冲法,其误差小于2%。

关键词: 树木蒸腾耗水, 蒸腾测定技术, 整树容器法, 热脉冲法,

Abstract:

A study on com parison of five methods for the transpiration water-comsum ption conducted in poplar plantation in Shandong province (Populus deltoides cv."Lux"ex.Ⅰ-69/55) and Ningxia Autonomous Region (Populus opera) from 1989 to 1991.The five measuring methods are whole-tree potometer, quick-weighing method, LI-1600 porometer, heat pulse technique and Penman-Monteith method.The results of the study are as follows:(1) Supposing that the relative value of daily transpiration waterconsumption per tree measured with whole-tree potometer is 100%, the relative value measured by quick-weighing method is 130%-140%, the relative value measured with LI-1600 porometer is 291% and the relative value measured by heat pulse technique is 90.14%.(2) Supposing that the relative value of the daily transpiration water-consum ption per tree measured by heat pulse technique is 100%, the relative value measured by quick-weighing method is 88% in 6-year-old tree and 112% in 2-year-old tree.(3) The value measured with LI-1600 porometer is 30%-90% higher than that measured by quick-weighing method in Ningxia arid zone and 140%-220% higher than that in more humid area of Shandong Province.(4) The value measured by Penman-Monteith method is very close to that measured with whole-tree potometer and that measured by heat pulse technique with errors less than 2%.

Key words: Transpiration, Water-consumption of tree, Technique for measuring transpiration, Whole-tree potometer, Heat pulse techniquee

刘奉觉,郑世锴,巨关升,EdwardsWRN,吴衍德. 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.

Fengjue Liu,Shikai Zheng,Guansheng Ju,WRN Edwards,Yande Wu. A STUDY ON COMPARISON OF MEASURING WATER-CONSUMPTION FOR TRANSPIRATION IN POPLAR[J]. Scientia Silvae Sinicae, 1997, 33(2): 117-126.

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参考文献 13

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