9/15/2023 0 Comments Free tree seedlings 2022![]() This year, WRI and Indonesia’s Ministry of Environment and Forestry (MoEF) are working together on a joint analysis to better understand the UMD/GFW primary forest loss findings through the MoEF’s data and definitions. However, the two seem to show different trends for 2022 in the Brazilian Amazon: PRODES shows an 11% decrease in deforestation while UMD shows a 21% increase in non-fire primary forest loss. Separating out tree cover loss from fire in the UMD data has resulted in a much closer match between these two data sets. These are both important measures that help us understand how forests are changing since deforestation, forest fires and small disturbances to forest canopy can all lead to impacts on climate, biodiversity and ecosystem services. PRODES measures clear cut deforestation and anthropogenic forest losses by fire larger than 6.25 hectares, whereas UMD captures loss larger than 0.09 hectares of all trees taller than five meters. ![]() PRODES - the official forest monitoring system for the Amazon from Brazil’s National Institute for Space Research (INPE) - and the UMD data have methodological and definitional differences that are important to understand when comparing these two data sources. How does tree cover loss compare with official country data in Brazil and Indonesia? Brazil Even if these losses are eventually reversed, it will take decades for these habitats and carbon stocks to recover, and permanent biodiversity loss may occur. In our analysis of the UMD data, we largely focus on tree cover loss in tropical primary forests because tropical forests experience the vast majority (over 96%) of the world’s deforestation, and loss in those areas has huge impacts on biodiversity and carbon storage. It excludes temporary losses, such as from fires or forestry activities. Specifically, it includes the expansion of small-scale agriculture into humid tropical primary forests, as well as all loss in commodity-driven deforestation and urbanization. To do this, the Targets Tracker identifies losses that are likely to represent deforestation in and outside of the tropics by only including tree cover loss from certain drivers. Read more about the differences here.Ī new tool available on the Global Forest Review, the Targets Tracker, enables us to use tree cover loss data to measure progress toward deforestation commitments on a global level by using a coarse resolution proxy of deforestation. ![]() Some forms of tree cover loss, such as conversion of a natural forest to agricultural land, are considered deforestation, while other forms of tree cover loss, such as timber harvesting in plantation forests or natural disturbances, are not. Deforestation differs in that it only refers to a human-caused, permanent change from forest to another land use. Loss of this tree cover can be due to human or natural causes and can be permanent or temporary. The tree cover loss data includes the loss of trees in natural forests as well as in plantations and tree crops. This is a common occurrence in many tropical countries where cloud cover is prevalent. Because optical satellite data collection can often be obscured by cloud cover in the humid tropics, some late-in-the year loss can be picked up in the next year following persistent cloud cover. The tree cover loss data from UMD captures the annual loss of all trees taller than five meters for the calendar years between 20. ![]() What tree cover loss measures and how this differs from deforestation What does the data measure, what is different this year and how does it compare to other official estimates of deforestation? Here is what you should know about the new data. New tree cover loss data from the University of Maryland (UMD) and available on Global Forest Watch (GFW) shows high rates of primary forest loss in 2022 despite political ambitions to curb loss. ![]()
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