Land use, land-use change and forestry
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."
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.
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)  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).
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).
Land use and biodiversity
The extent, and type of land use directly affects wildlife habitat and thereby impacts local and global biodiversity. Human alteration of landscapes from natural vegetation (e.g. wilderness) to any other use typically results in habitat loss, degradation, and fragmentation, all of which can have devastating effects on biodiversity. Land conversion is the single greatest cause of extinction of terrestrial species. An example of land conversion being a chief cause of the critically endangered status of a carnivore is the reduction in habitat for the African wild dog, Lycaon pictus.
Deforestation is also the reason for loss of a natural habitat, with large of amount trees being cut down for residential and commercial use. Urban growth has become a problem for forests and agriculture,the expansion of structures prevents natural resources from producing in their environment. The loss of forest land is estimated to have been sixteen to thirty four million. In order to prevent the loss of wildlife the forests must maintain a stable climate and the land must remain unaffected by development. The U.S. Forest service predicts that urban and developing terrain in the U.S. will expand by forty one percent in the year 2060. These conditions cause displacement for the wildlife and limited resources for the environment to maintain a sustainble balance.
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- C. Michael Hogan. 2009. Painted Hunting Dog: Lycaon pictus, GlobalTwitcher.com, ed. N. Stromberg
- National Conference of State Legislature."State Forest Carbon Incentives and Policies".Jocelyn Durkay and Jennifer Schultz..22 March, 2016. Web.25 April 2015.http://www.ncsl.org/research/environment-and-natural-resources/state-forest-carbon-incentives-and-policies.aspx
- Good Practice Guidance for Land Use, Land-Use Change and Forestry
- IPCC Special Report on Land Use, Land-Use Change, and Forestry