Translations:Climate change mitigation/63/ja: Difference between revisions

Latest revision as of 14:19, 18 July 2025

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Message definition (Climate change mitigation)

[[Afforestation]] is the establishment of trees where there was previously no tree cover. Scenarios for new plantations covering up to 4000 million hectares (Mha) (6300 x 6300 km) suggest cumulative carbon storage of more than 900 GtC (2300 Gt{{CO2}}) until 2100. But they are not a viable alternative to aggressive emissions reduction. This is because the plantations would need to be so large they would eliminate most natural ecosystems or reduce food production. One example is the [[Trillion Tree Campaign]]. However, preserving [[biodiversity]] is also important and for example not all [[grassland]]s are suitable for conversion into forests. Grasslands can even turn from [[carbon sink]]s to [[carbon source]]s. [[File:Coppice stool.jpg|thumb|right|Helping existing roots and tree stumps regrow even in long deforested areas is argued to be more efficient than planting trees. Lack of legal ownership to trees by locals is the biggest obstacle preventing regrowth.]]

植林とは、以前に樹木がなかった場所に木を植えることである。最大4000万ヘクタール（Mha）（6300 x 6300 km）をカバーする新規植林のシナリオは、2100年までに900ギガトン以上の炭素（2300ギガトンCO
2）の累積炭素貯蔵を示唆している。しかし、これらの植林は、その規模があまりに大きいため、ほとんどの自然生態系を排除したり、食料生産を減少させたりすることになるため、積極的な排出削減の実行可能な代替策ではない。一兆本の木キャンペーンはその一例である。しかし、生物多様性の保全も重要であり、例えば、すべての草地が森林への転換に適しているわけではない。草地は、炭素吸収源から炭素排出源にさえ変わりうる。

Translations:Climate change mitigation/63/ja: Difference between revisions

Latest revision as of 14:19, 18 July 2025

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