Chart: Tropical forest loss between 2000-2005

mongabay.com
July 29, 2012



Chart: Gross forest loss in tropical countries, 2000-2005.
Gross forest loss in tropical countries, 2000-2005 according to Harris et al (2012).

A study published last month in the journal Science came up with new estimates of tropical forest loss between 2000 and 2005. The research — led by Nancy Harris of Winrock International and also involving scientists from Applied GeoSolutions, NASA's Jet Propulsion Laboratory and the University of Maryland — was based on analysis of remote sensing data calibrated with field studies.

Like other assessments, the study found Brazil and Indonesia lost the greatest extent of forest during the period. But some of their data differed substantially from the default source of forest data, the U.N. Food and Agriculture Organization. For example, according to Harris and colleagues, Indonesia's gross forest loss was twice as high as estimated by FAO, while India's was one million hectares higher. But Myanmar and Tanzania had substantially lower loss under the methodology used in the Science paper.

Countries with the highest gross forest loss between 2000 and 2005 according to the new study
Countries with the highest gross forest loss between 2000 and 2005 according to the new study and earlier work by the FAO. Click image to enlarge.

The objective of the study was to quantify emissions from deforestation. Harris and colleagues estimated gross carbon emissions from deforestation at 810 million metric tons (with a 90 percent confidence interval of 0.57-1.22 billion tons) per year from 2000-2005, significantly below earlier calculations. Brazil and Indonesia accounted for 55 percent of gross emissions from tropical deforestation during the study period, while dry forests accounted for 40 percent of tropical forest loss but amounted to only 17 percent of emissions.

The study did not look at carbon emissions from logging or other forms of forest degradation, including peatlands drainage and burning. The authors noted another study found emissions from these sources amounted to 272 million tons per year in the study period, adding roughly a third more to their results. The research also did not account for forest recovery in the tropics, nor land use change in temperate regions.

Percent gross forest loss in tropical countries, 2000-2005.
Gross forest loss in tropical countries, 2000-2005 according to Harris et al (2012).

The researchers say the next phase of their analysis will look at the 2006-2010 period.

For more on the study, including other charts and maps, see Deforestation accounts for 10 percent of global carbon emissions, argues new study .


Data table
Note: this table only includes mean and median estimates from the study. For the full results, download the supplemental online materials [PDF].

Forest Area 2000Gross Forest Cover LossForest Carbon Stock DensityEmissions from Deforestation
(Median estimate)(Mean estimate)(Median estimate)
Country (Million ha)ha/yrtons/haM tC/yr
Brazil4583,292,000116340
Indonesia107701,000155105
Argentina49437,0002410
Paraguay21242,000279
Malaysia22233,00017941
India42206,00010418
DR Congo167203,00012823
Mozambique34196,000429
Myanmar33186,00015529
Tanzania23149,000457
Mexico46140,000488
Colombia63137,00013814
Thailand17134,00012616
Zambia29134,000437
Bolivia61129,0009011
Angola49126,000476
Zimbabwe9119,000305
Venezuela49115,0001349
South Africa1399,000284
Sudan1795,000454
Laos1685,00016415
Nigeria1281,000834
Ethiopia1668,000534
Chile1767,000526
CAR3665,000664
Cambodia958,0001278
Peru6857,0001587
Vietnam1455,0001278
Cameroon2654,0001427
Madagascar1652,000703
Guatemala650,000925
Nicaragua550,0001136
PNG3150,0001527
Botswana448,000191
Philippines1040,0001186
Cote d’Ivoire839,000853
Kenya439,000542
Ecuador1337,0001494
Chad537,000311
Ghana530,000942
Caribbean728,000462
Mali328,000441
Guinea927,000572
Rep. of Congo2326,0001603
Gabon1924,0001644
Uganda523,000651
Somalia120,000341
Uruguay319,000281
Honduras617,000771
Namibia117,00016-
Nepal516,0001032
Sierra Leone316,000831
Liberia714,0001472
Senegal214,00026-
Guyana1613,0001611
Costa Rica312,0001051
Panama312,0001151
Benin212,00029-
Malawi210,00040-
Belize19,0001051
Bangladesh27,000941
Sri Lanka37,000941
Suriname126,0001611
Togo16,00049-
Bhutan24,0001521
Burundi13,00064-
Equatorial Guinea23,0001601
Lesotho13,00019-
El Salvador12,00049-
French Guiana72,000160-
Guinea-Bissau12,00037-
Swaziland12,00032-



CITATION: Nancy L. Harris, Sandra Brown, Stephen C. Hagen, Sassan S. Saatchi, Silvia Petrova, William Salas, Matthew C. Hansen, Peter V. Potapov, and Alexander Lotsch. Baseline Map of Carbon Emissions from Deforestation in Tropical Regions. Science 22 June 2012: Vol. 336 no. 6088 pp. 1573-1576 DOI: 10.1126/science.1217962















CITATION:
mongabay.com (July 29, 2012).

Chart: Tropical forest loss between 2000-2005.

http://news.mongabay.com/2012/0729-chart-tropical-forest-loss.html