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 h English (en){{short description|none}}
{{See  also|Effects of climate change on agriculture}}
[[File:Global greenhouse gas emissions from food production.png|thumb|One quarter of the world's greenhouse gas emissions result from food and agriculture (data from 2019).]]
The amount of '''greenhouse gas emissions from agriculture''' is significant: The agriculture, forestry and land use sectors contribute between 13% and 21% of global [[greenhouse gas emissions]]. Emissions come from ''direct'' greenhouse gas emissions (for example from [[Rice|rice production]] and [[livestock]] farming). And from ''indirect'' emissions. With regards to direct emissions, [[nitrous oxide]] and [[methane]] makeup over half of total greenhouse gas emissions from agriculture.
A 2023 review emphasizes that emissions from agricultural soils are shaped by factors such as soil type, climate, and management practices. It also highlights several mitigation strategies, including conservation tillage, precision agriculture, improved water use, and the application of biochar, that can reduce emissions and enhance soil carbon storage. Indirect emissions on the other hand come from the conversion of non-agricultural land such as [[forest]]s into agricultural land. Furthermore, there is also [[fossil fuel]] consumption for transport and [[fertilizer]] production. For example, the [[Haber process|manufacture]] and use of [[nitrogen fertilizer]] contributes around 5% of all global greenhouse gas emissions. [[Environmental impacts of animal agriculture|Livestock farming]] is a major source of greenhouse gas emissions. At the same time, [[Effects of climate change on livestock|livestock farming is affected by climate change]].
 h Japanese (ja){{See  also/ja|:en:Effects of climate change on agriculture}}
[[File:Global greenhouse gas emissions from food production.png|thumb|世界の温室効果ガス排出量の4分の1は食料生産と農業に起因する(2019年のデータ)]]
'''農業からの温室効果ガス排出量'''は''著しい''。農業、林業、土地利用部門は、世界の[[:en:greenhouse gas emissions|温室効果ガス排出量]]の13%から21%を占める。排出は''直接的な''温室効果ガス排出(例えば、[[Rice/ja|稲作]]や[[livestock/ja|畜産]]から)と''間接的な''排出から生じる。直接排出に関しては、[[nitrous oxide/ja|亜酸化窒素]]と[[methane/ja|メタン]]が農業からの総温室効果ガス排出量の半分以上を占める。
2023年のレビューでは、農地の排出量が土壌の種類、気候、管理慣行などの要因によって形成されることが強調されている。また、不耕起栽培、精密農業、水利用の改善、バイオ炭の施用など、排出量を削減し、土壌炭素貯蔵を強化できるいくつかの緩和戦略も強調されている。一方、間接排出は、[[:en:forest|森林]]などの非農業用地を農地に転換することから生じる。さらに、輸送や[[fertilizer/ja|肥料]]生産のための[[fossil fuel/ja|化石燃料]]消費もある。例えば、[[:en:Haber process|窒素肥料]]の[[:en:Haber process|製造]]と使用は、世界の温室効果ガス排出量全体の約5%を占める。[[:en:Environmental impacts of animal agriculture|畜産]]は温室効果ガス排出の主要な発生源である。同時に、[[Effects of climate change on livestock/ja|畜産は気候変動の影響を受ける]]。