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Tag: Deforestation

Barren Lands Barren Lands
Deforestation is well known for aggravating erosion. Bare soil has no protection against heavy rain, washing away immediately. On hillsides, it readily turns into mudslides leaving people very little time to seek refuge and cutting deep ravines into the earth. And where deforested land was turned into cultivated fields, the soil is likely to be overused and exploited through intensive use of fertiliser.
01 Feb 2006 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Environment and Security priority areas in the Ferghana Valley Environment and Security priority areas in the Ferghana Valley
The graphic shows an outline of the areas within the Ferghana Valley which are subjects to disputes over water resources and borders, disputes between private and collective farmers, deforestation and overuse of pasture. The map also show areas of industrial pollution and chemical risks caused by badly maintained radioactive dumps, tailing containments and several working industrial facilities.
16 Mar 2006 - by Viktor Novikov and Philippe Rekacewicz, UNEP/GRID-Arendal
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Severity of land degradation Severity of land degradation
The highest levels of land degradation is in Europe. Specifically degraded soils are found especially in semi-arid areas (Sub-Saharan Africa, Chile), areas with high population pressure (China, Mexico, India) and regions undergoing deforestation (Indonesia).
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Areas affected by deforestation Areas affected by deforestation
Deforestation is a key global environmental indicator. Many regions of the world are affected by deforestation: namely in South America (Brazil), Central Africa (Congo), Southeast Asia (Indonesia) and Eastern Europe.
07 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Disappearing forests Disappearing forests
From 1970 to 1990 there was significant deforestation of both primary and secondary forests in Thailand: during this thirty year period, the area covered by primary and secondary forest declined by more than half.
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Locations reported by various studies as undergoing high rates of land cover change in the past few decades Locations reported by various studies as undergoing high rates of land cover change in the past few decades
In the case of forest cover change, the studies refer to the period 1980–2000 and are based on national statistics, remote sensing, and, to a limited degree, expert opinion. In the case of land cover change resulting from degradation in drylands (desertification), the period is unspecified but inferred to be within the last half-century, and the major study was entirely based on expert opinion, with associated low certainty. Change in cultivated ...
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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Forests working for the global climate - Reducing Emissions from Deforestation in Developing Countries (REDD) Forests working for the global climate - Reducing Emissions from Deforestation in Developing Countries (REDD)
Carbon trading of credits from avoided deforestation could yield billions of dollars for tropical countries, according to an analysis by Rhett A.Butler, founder and editor from mongabay.com, a leading tropical forest web site. The proposed mechanism - Reducing Emissions from Deforestation in Developing Countries (REDD) - will enable these countries to maintain their forests as a global resource. Using conservative estimates on carbon storage in ...
12 May 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
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World map of forest distribution (Natural resources - forests) World map of forest distribution (Natural resources - forests)
Approximately 240 million of the world's poor that live in forested areas of developing countries depend on forests for their livelihoods. Forest and its products provide cash income, jobs, and consumption goods for poor families. Forestry provides formal and informal employment for an estimated 40-60 million people. The sector contributes in some developing countries more than eight per cent to GDP. Timber may be the most important forest produc...
12 May 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Mining the forest Mining the forest
Mining and deforestation.
01 Mar 2010 - by Riccardo Pravettoni
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Deteriorated forest hotspots Deteriorated forest hotspots
Despite showing signs of slowing at the global level, the present pace of deforestation continues to be a source of serious concern for Latin America and the Caribbean. While the region’s forests represent one of the most important potential sources for mitigating greenhouse gas emissions, it equally accounted for approximately 70% of the world’s decrease in forests between 2005 and 2010 (FAO 2010). The global forest resource assessment (FRA) con...
22 Nov 2010 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Forest conservation and sustainable management initiatives Forest conservation and sustainable management initiatives
In November 2009, in an attempt to preserve the forests and slow deforestation, the Governments of Guyana and Norway signed a memorandum of understanding for cooperation on issues related to combating climate change, protecting biodiversity and improving sustainable development, with a particular focus on reducing emissions from deforestation and forest degradation in the framework of REDD-plus. Within the region, Panama, the Plurinational State ...
22 Nov 2010 - by Nieves López Izquierdo, Associate Consultant UNEP/GRID-Arendal
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Marginal abatement cost curve for Mexico in 2020 Marginal abatement cost curve for Mexico in 2020
Estimating mitigation costs is a complex task that incorporates a high degree of uncertainty due to the variety of factors involved. However, this exercise provides valuable information to design mitigation strategies. Estimates for Mexico show the substantial economic benefits to be gained from a strategy that considers the transport sector, coupled with the amount of emissions could be reduced. It also highlights the lower costs associated to m...
22 Nov 2010 - by Nieves López Izquierdo (Associate Consultant UNEP/GRID-Arendal)
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Marginal abatement cost curve for Central America in 2030 Marginal abatement cost curve for Central America in 2030
Estimates of the marginal costs of emissions reduction for Central America show that decarbonization options should be directed towards energy efficiency in the residential and services sectors, mainly arising from savings due to reduced energy consumption. Similarly, the mitigation strategy should be focused towards reducing deforestation and degradation, with additional benefits for biodiversity and water supply. Sectors like transportation and...
22 Nov 2010 - by Nieves López Izquierdo (Associate Consultant UNEP/GRID-Arendal)
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Guatemala, case study locator map Guatemala, case study locator map
Guatemala, case study locator map
11 Jul 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Extent of deforestation in Borneo 1950-2005, and projection towards 2020 Extent of deforestation in Borneo 1950-2005, and projection towards 2020
The tropical lowland and highland forests of Borneo, including vast expanses of rainforest, have decreased rapidly after the end of the second world war. Forests are burned, logged and clear, and commonly replaced with agricultural land, built-up areas or palm oil plantations. These areas represent habitat for species, such as Orangutan and elephants.
01 Nov 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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World Greenhouse Gas Emissions by Sector World Greenhouse Gas Emissions by Sector
All transport accounts for approximately 13.5% of the total emissions, while deforestation accounts for approximately 18%. However, estimates of the loss of marine carbon-binding ecosystems have previously not been included.
06 Oct 2009 - by WRI/Tim Herzog
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Conversion of forests to different land uses Conversion of forests to different land uses
Using satellite images, land use changes were determined at Batang Toru (2001-2009) and Tripa (2001-2009) to calculate overall CO2 emissions. Deforestation in both areas led to different land use transitions, with the predominant land use in Batang Toru after deforestation being disturbed forest and in Tripa, oil palm plantations.
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Distribution of benefits under different land use scenarios in the Leuser Ecosystem Distribution of benefits under different land use scenarios in the Leuser Ecosystem
Net present value (NPV) is in millions of USD over a 30-year period (2000-2030) at a 4% discount rate. The NPV for local communities under a deforestation scenario would be 3,132 million USD and under a conservation scenario 5,341 million USD. The analysis shows that the local community would benefit most from a scenario under which the forest is conserved, negative effects on ecosystem services are avoided and payments for ecosystem services ar...
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Above-ground carbon-stock density changes Above-ground carbon-stock density changes
In Batang Toru, land use changes and deforestation led to an overall loss of around 10 tonnes of carbon per hectare between 1994 and 2009. Due to its exploitation for the cultivation of oil palm, the peat area of Tripa had to face a much more important decrease of 66 tonnes of carbon per hectare in the time period 1990-2009. In terms of CO2 emissions, it corresponds to an overall emission per year of 634,903 tCO2.
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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