Emissions of CH4 - from Agriculture (Model Estimations, RIVM-MNP)

A global emissions source database called EDGAR has been developed jointly by TNO and RIVM to meet the urgent need of atmospheric chemistry and climate modellers and the need of policy-makers. The EDGAR database was to estimate the annual emissions of direct and indirect greenhouse gases (CO2, CH4, N2O; CO, NOx, non-methane VOC; SO2), including ozone-depleting compounds (halocarbons) for 1990 on a regional and grid basis. To meet the aim of establishing the global emissions from both anthropogenic and biogenic sources, a complete set of data would be required to estimate the total source strength of the various gases with a 1x1 degree resolution (altitude resolution of 1 km), as agreed upon in the Global Emissions Inventory Activity (GEIA) of the International Atmospheric Chemistry Programme (IGAC).

Emissions of CH4 - from Agriculture (RIVM). Emissions of CH4 (Methane) from the agricultural sector include emissions from:

Rice cultivation (IPCC 4C);
Animal breeding: enteric fermentation and animal waste management (IPCC 4A and 4B,);
Savannah burning (IPCC 4E);
Agricultural waste burning (IPCC 4F).
The emissions from deforestation (IPCC 5A1) and vegetation fires (IPCC 5A2,3) are not included.

由TNO与RIVM联合开发的全球排放源数据库EDGAR，旨在满足大气化学与气候建模人员的迫切需求，同时适配政策制定者的相关应用诉求。该数据库旨在针对1990年的直接与间接温室气体（二氧化碳（CO₂）、甲烷（CH₄）、一氧化二氮（N₂O）；一氧化碳（CO）、氮氧化物（NOₓ）、非甲烷挥发性有机化合物（VOC）；二氧化硫（SO₂））以及耗竭臭氧层的卤代烃类化合物，提供基于区域与网格尺度的年度排放量估算。为达成统计人为源与生物源全球总排放量的目标，需依据国际大气化学计划（International Atmospheric Chemistry Programme，IGAC）下属的全球排放清单活动（Global Emissions Inventory Activity，GEIA）所约定的1×1度空间分辨率（垂直分辨率为1千米），构建完整数据集以估算各类气体的总源强。

农业源甲烷（CH₄，Methane）排放量（由RIVM提供）。农业部门的甲烷排放涵盖以下类别：
水稻种植（对应政府间气候变化专门委员会（Intergovernmental Panel on Climate Change，IPCC）指南4C类别）；
畜禽养殖：包括肠道发酵与畜禽粪便管理（对应IPCC指南4A与4B类别）；
稀树草原焚烧（对应IPCC指南4E类别）；
农业废弃物焚烧（对应IPCC指南4F类别）。
森林砍伐（对应IPCC指南5A1类别）与植被火灾（对应IPCC指南5A2、5A3类别）产生的排放未纳入本次统计范围。