薄边界层法与静态通量箱法估算水-气界面CH4通量对比

摘要

A comparison between the thin boundary layer method and online monitoring-static chamber method for estimating greenhouse gases(CH4) fluxes of methane across the water-air interface of the Three-Gorges Reservoir.The differences between the two methods are obtained.The results show that the static chamber method results in most points higher than ones by thin boundary layer method;generally,it is 1.2-12 times ones by thin boundary layer method.%采用薄边界层法与在线测量-静态通量箱法对三峡库区水-气界面温室气体甲烷(CH4)通量进行比较,得到两种估算方法差异性.结果显示:静态通量箱法结果多数点高于薄边界层法,一般为薄边界层法的1.2～12倍;极少数点薄边界层法高于静态通量箱法.