Peat swamp forest

EN Texte en anglais Pas encore d'article dans ta langue : extrait en anglais.

Peat swamp forests are tropical moist forests where waterlogged soil prevents dead leaves and wood from fully decomposing. Over time, this creates a thick layer of acidic peat. Peat swamp forests are typically surrounded by lowland rain forests on better-drained soils, and by brackish or salt-water mangrove forests near the coast. They are a kind of wetland which store and accumulate vast amounts of carbon as soil organic matter—much more than forests on mineral soil contain. Peat formation is a natural carbon sink; because the decomposition of the organic matter is slower than its production rate, the surplus accumulates as peat. The stability of these forests has important implications for climate change; they are among the largest near-surface reserves of terrestrial organic carbon. Tropical peat swamp forests, which have ecological importance, are one of the most threatened yet least studied and most poorly understood biotypes. Large areas of these forests are being logged at high rates. Since the 1970s, tropical peat swamp forest deforestation and drainage have greatly increased in South East Asia. In addition, El Niño–Southern Oscillation drought and large-scale fires are accelerating peatland devastation. Peat fires, drainage and deforestation enhance the decomposition of soil organic matter, increasing the release of stored carbon into the atmosphere as carbon dioxide. Tropical peat swamp forests are home to thousands of animals and plants, including many rare and critically endangered species such as the orangutan and Sumatran tiger, whose habitats are threatened by peatland deforestation.