Hydrogeology

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Most of the Sumatran orangutan's forests inland play a key role in ensuring downstream freshwater supplies, since the non-alluvial inland areas of the region tend to have very little or no underlying groundwater resources.

Year: 2011

From collection: Orangutans and the Economics of Sustainable Forest Management in Sumatra

Cartographer: Riccardo Pravettoni, UNEP/GRID-Arendal

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Abatement costs for transition from undisturbed forest to other land uses

Above-ground carbon-stock density changes

Above-ground carbon stocks

Administration

Annual rainfall

Areas that qualify for protection under Indonesian law

Below-ground carbon stocks

Carbon stock for different type of land uses, on mineral and peat soil

Carbon storage in terrestrial ecosystems vs. great ape distribution

Change in forest cover, 1985-2007

Conservation areas and the Leuser Ecosystem

Conversion from primary forest to other land uses, 1985-2007

Conversion of forests to different land uses

Hydrogeology

Graphics included in same album

Abatement costs for transition from undisturbed forest to other land uses

Above-ground carbon-stock density changes

Above-ground carbon stocks

Administration

Annual rainfall

Areas that qualify for protection under Indonesian law

Below-ground carbon stocks

Carbon stock for different type of land uses, on mineral and peat soil

Carbon storage in terrestrial ecosystems vs. great ape distribution

Change in forest cover, 1985-2007

Conservation areas and the Leuser Ecosystem

Conversion from primary forest to other land uses, 1985-2007

Conversion of forests to different land uses

Distribution of benefits under different land use scenarios in the Leuser Ecosystem

Ecological zones

Ecosystem services value for the Leuser Ecosystem

Elevation

Fire events in Tripa

Forest loss from 1985-2007 for Sumatra

Forest status

Human relative population density

Hunting of orangutans

Land cover change in Batang Toru

Land cover change in Tripa, Indonesia

Land not suitable for major agriculture crops

Land use types that replaced forest in the Leuser Ecosystem during 1985-2007

Land use values

Megafauna

Mining exploration

Multinational networks to exploit natural resources

Plantation concessions

Population growth in North Sumatra and Aceh 1920-2008

Roads

Sites

Smuggling routes of illegally logged ramin timber from Indonesia, including from national parks and protected areas

Timber concessions

Tourism

Value for the avoided CO2 emissions during a 25-year transition period from primary forest to oil palm or other land uses

Water catchments