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Land use, land-use change and forestry (LULUCF) is defined by the United Nations Climate Change Secretariat as "A greenhouse gas inventory sector that covers emissions and removals of greenhouse gases resulting from direct human-induced land use, land-use change and forestry activities."〔(Land use, land-use change, and forestry (LULUCF) ), Glossary of climate change acronyms, UNFCCC website. Retrieved 2009-01-11.〕 LULUCF has impacts on the global carbon cycle and as such, these activities can add or remove carbon dioxide (or, more generally, carbon) from the atmosphere, influencing climate. LULUCF has been the subject of two major reports by the Intergovernmental Panel on Climate Change (IPCC). Additionally, land use is of critical importance for biodiversity. ==Climatic impacts of land-use, land-use change and forestry== Land-use change can be a factor in CO2 (carbon dioxide) atmospheric concentration, and is thus a contributor to climate change. IPCC estimates that land-use change (e.g. conversion of forest into agricultural land) contributes a net 1.6 ± 0.8 Gt carbon per year to the atmosphere. For comparison, the major source of CO2, namely emissions from fossil fuel combustion and cement production amount to 6.3 ± 0.6 Gt carbon per year.〔(【引用サイトリンク】title=Vital Climate Graphics | UNEP/GRID-Arendal - Publications - Vital Climate Graphics )〕 This decision sets out the rules that govern how Kyoto Parties with emission reduction commitments (so-called Annex 1 Parties) account for changes in carbon stocks in land use, land-use change and forestry. It is mandatory for Annex 1 Parties to account for changes in carbons stocks resulting from deforestation, reforestation and afforestation (B Article 3.3) 〔(【引用サイトリンク】title=Microsoft Word - kpcmp8a3.doc )〕 and voluntary to account for emissions from forest management, cropland management, grazing land management and revegetation (B. Article 3.4). The rules governing the treatment of land use, land-use change and forestry for the second commitment period are part of the Bali Action Plan under the ''Ad Hoc'' Working Group on Further Commitments for Annex 1 Parties under the Kyoto Protocol (AWG-KP).〔(AWG-KP begins final year of work ), UNFCCC website. Retrieved 2009-10-11.〕 The most recent options for rule changes under consideration are summarized in a "Non-Paper" the co-chairs of the contact group on LULUCF (as of June 12).〔(A text on other issues outlined in document FCCC/KP/AWG/2008/8 ), UNFCCC website. Retrieved 2009-10-11.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Land use, land-use change and forestry」の詳細全文を読む スポンサード リンク
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