Borneo peat swamp forests

The Borneo peat swamp forests ecoregion, within the tropical and subtropical moist broadleaf forests biome, are on the island of Borneo, which is divided between Brunei, Indonesia and Malaysia.

Peat swamp forests occur where waterlogged soils prevent dead leaves and wood from fully decomposing, which over time creates thick layer of acidic peat. The peat swamp forests on Borneo occur in the Indonesian state of Kalimantan, the Malaysian state of Sarawak and in the Belait District of Brunei on coastal lowlands, built up behind the brackish mangrove forests and bounded by the Borneo lowland rain forests on better-drained soils. There are also areas of inland river-fed peat forest at higher elevations in central Kalimantan around the Mahakam Lakes and Lake Sentarum on the Kapuas River. Borneo has a tropical monsoon climate.

Over the past decade, the government of Indonesia has drained over 1 million hectares of the Borneo peat swamp forests for conversion to agricultural land under the Mega Rice Project (MRP). Between 1996 and 1998, more than 4,000 km of drainage and irrigation channels were dug, and deforestation accelerated in part through legal and illegal logging and in part through burning. The water channels, and the roads and railways built for legal forestry, opened up the region to illegal forestry. In the MRP area, forest cover dropped from 64.8% in 1991 to 45.7% in 2000, and clearance has continued since then. It appears that almost all the marketable trees have now been removed from the areas covered by the MRP. What happened was not what had been expected: the channels drained the peat forests rather than irrigating them. Where the forests had often flooded up to 2m deep in the rainy season, now their surface is dry at all times of the year. The Indonesian government has now abandoned the MRP.

...
Wikipedia