Methods for determining emission factors for the use of peat and peatlands : flux measurements and modelling
Methods for determining emission factors for the use of peat and peatlands : flux measurements and modelling
复制标题
确定泥炭和泥炭地使用排放因子的方法：通量测量和建模
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
K. Minkkinen
中科院分区：
文献类型：
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作者：
J. Alm;N. Shurpali;E. Tuittila;T. Laurila;M. Maljanen;S. Saarnio;K. Minkkinen
本文的目的是介绍“芬兰使用泥炭和泥炭地产生的温室气体排放”方案项目中常用的气体交换测量和通量计算方法。该方法包括在生态系统-大气边界用密闭箱测量CO2、CH 4和N2 O的瞬时通量，在冠层上方用微气象EC塔测量整个生态系统的气体通量，以及季节和年通量的积分。此外，还介绍了为填补缺失的天气记录而开发的工具，以及为气体通量的关键环境控制生成完整的天气模式。从收集的气体通量，能够再现的动态，气候依赖性的排放因子的推导概述。
The purpose of this paper is to introduce the gas exchange measurement and flux calculation methods commonly used in the projects of the programme "Greenhouse gas emissions from the use of peat and peatlands in Finland". The methods include measurements of instantaneous fluxes of CO 2 , CH 4 and N 2 O made at the ecosystem-atmosphere boundary using closed chamber, and whole ecosystem fluxes of the gases using micrometeorological EC tower extending above the canopy, and the integration of seasonal and annual fluxes. In addition, tools developed for gap filling of missing weather records, and generating complete weather patterns for the key environmental controls of the gas fluxes are introduced. Derivation of emission factors from the collected gas fluxes, capable of reproducing the dynamic, climate dependent nature is outlined.