LI-6262 CO2/H2O分析仪接气室法在草原群落蒸散量与CO2交换量测定中的应用

doi:10.17521/cjpe.2007.0112

植物生态学报 ›› 2007, Vol. 31 ›› Issue (5): 892-896.DOI: 10.17521/cjpe.2007.0112 cstr: 32100.14.cjpe.2007.0112

所属专题：生态系统碳水能量通量

LI-6262 CO₂/H₂O分析仪接气室法在草原群落蒸散量与CO₂交换量测定中的应用

刘芳¹^,², 王炜¹^,^*(), 朴顺姬¹, 王永利³, 韩芳³

1 内蒙古大学生态与环境科学系,呼和浩特 010021
2 内蒙古工业大学能源与动力工程学院环境工程系,呼和浩特 010051
3 内蒙古气象局,呼和浩特 010051

收稿日期:2006-03-14 接受日期:2006-10-19 出版日期:2007-03-14 发布日期:2007-09-30
作者简介:* E-mail: weiwangww@sina.com
基金资助:
国家自然科学基金重点项目(30330120);国家“973”项目(G2000018604)

NEW METHOD FOR MEASURING EVAPOTRANSPIRATION AND CO₂ ABSORPTION IN GRASSLAND COMMUNITIES USING LI-6262 CO₂H₂O ANALYSER

LIU Fang¹^,², WANG Wei¹^,^*(), PIAO Shun-Ji¹, WANG Yong-Li³, HAN Fang³

¹Department of Ecology and Environment Sciences, Inner Mongolia University, Huhhot 010021, China
²Department of Environment Engineering, School of Energy and Power Engineering, Inner Mongolia University of Technology, Huhhot 010051, China
³Inner Mongolia Meteorological Administration, Huhhot 010051, China

Received:2006-03-14 Accepted:2006-10-19 Online:2007-03-14 Published:2007-09-30

摘要/Abstract

摘要：

植物群落蒸散量和CO₂交换量的测定方法多种多样。该文以水分、CO₂动态的区域性整合为目标,开创了一种新的、同时测定群落蒸散量和CO₂交换量的方法——LI-6262 CO₂/H₂O分析仪接气室法。借助这种方法测定了内蒙古锡林河流域典型草原区群落蒸散量和CO₂交换量,取得了较好的结果。该方法将群落的重要生态过程:蒸散与光合、呼吸作用的测定联系起来,也因此得到一系列表征群落特性的有用指标;同时该方法具有精度高、简便易携带、适于野外操作等特点,经进一步改进后可广泛用于草原、沙地及湿地植物群落的气体通量测定。对于精确研究草原区各种植物群落类型的水分利用、光合和呼吸特性及草原区植被在全球气候变化中的地位和作用等有重要的实用价值。

关键词: 蒸散量, CO₂交换量, LI-6262 CO₂/H₂O分析仪, 典型草原

Abstract:

Aims Our objective was to develop a new method for simultaneously measuring evapotranspiration and CO₂ absorption in plant communities using the LI-6262 CO₂/H₂O analyzer for regional integration of water and CO₂ dynamics.

Methods We measured evapotranspiration and CO₂ absorption of some plant communities in the typical steppe of the Xilin River Basin, China.

Important findings Our method enabled us to concurrently measure evapotranspiration, photosynthesis and respiration, the important ecological processes of communities and therefore obtain a series of valuable measurements of community characteristics. Our method is precise, the instruments are easily portable, and the method is adaptable for plant communities of steppe, sand lands and wetlands. The method has important practical value for study of the impacts of global change on ecological functions of steppe.

Key words: evapotranspiration, CO₂ absorption, LI-6262 CO₂/H₂O analyzer, typical steppe

刘芳, 王炜, 朴顺姬, 王永利, 韩芳. LI-6262 CO₂/H₂O分析仪接气室法在草原群落蒸散量与CO₂交换量测定中的应用. 植物生态学报, 2007, 31(5): 892-896. DOI: 10.17521/cjpe.2007.0112

LIU Fang, WANG Wei, PIAO Shun-Ji, WANG Yong-Li, HAN Fang. NEW METHOD FOR MEASURING EVAPOTRANSPIRATION AND CO₂ ABSORPTION IN GRASSLAND COMMUNITIES USING LI-6262 CO₂H₂O ANALYSER. Chinese Journal of Plant Ecology, 2007, 31(5): 892-896. DOI: 10.17521/cjpe.2007.0112

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链接本文: https://www.plant-ecology.com/CN/10.17521/cjpe.2007.0112

https://www.plant-ecology.com/CN/Y2007/V31/I5/892

图/表 3

图1 气室内外温度对比

Fig.1 Comparison of temperatures between the inside and the outside of gas chamber

图2 退化样地群落7月13日蒸散量日变化

Fig.2 Diurnal variation of evapotranspiration in the plot of degenerative community on 13th, July

图3 退化样地群落7月13日CO2吸收量日变化

Fig.3 Diurnal variation of CO2 absorption in the plot of degenerative community on 13th, July

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LI-6262 CO₂/H₂O分析仪接气室法在草原群落蒸散量与CO₂交换量测定中的应用

NEW METHOD FOR MEASURING EVAPOTRANSPIRATION AND CO₂ ABSORPTION IN GRASSLAND COMMUNITIES USING LI-6262 CO₂H₂O ANALYSER

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