Tata, H.L. and van Noordwijk M. 2010. Human Livelihoods, Ecosystem Services and the Habitat of the Sumatran Orangutan: Rapid Assessment in Batang Toru and Tripa. Bogor, Indonesia: World Agro- forestry Centre/ICRAF Southeast Asia Regional Office.
Hunting data obtained from Socio-Economic surveys (2811 respondents in 377 localities) conducted between 2007 and 2009 around the Batang Toru forests by PanEco/YEL and partners (in prep.).
Forest status for Aceh shown on map “Peta Penunjukan Kawasan Hutan dan Perairan Propinsi NAD, 1:2,000,000. SK170/Kpts-II/2000” . Forest status for N.Sumatra shown on map accompanying “Peta Penunjukan Kawasan Hutan Propinsi Sumatera Utara, 1:5,000,000. SK 44/Kpts-II/2004”. Both maps available for download from Ministry of Forestry website (http://www.dephut.go.id)
Areas qualified for protection
Slope classes and elevations above 2000m generated from SRTM 90m DEM (available from the CGIAR website: http://srtm.csi.cgiar.org/); sensitive soil types on slopes of above 15% determined from 1:250,000 land unit soil map series published by the Pusat Penilitian Tanah dan Agroklimat, Bogor, 1990. Peat depth larger than 3 m adapted from Wetland International Indonesia.
Land not suitable for main agricultural crops
Te suitability of different land systems for various agricultural products taken from the RePPProT (Re- gional Physical Planning Programme for Transmigration) project of the 1980’s. Each land system was assessed as Suitable, Unsuitable, or Unsuitable without inputs for a number of commodities. Landsys- tems were mapped at a scale of 1:250,000. Land Resource Department/Bina Program, 1988. Reivew of Phase I Results from Regional Physical Planning Programme for Transmigration (RePPProT) Land Resources Department, Overseas Development Administration, London, UK; and Direktorat Bina Program, Direktorat Jenderal Penyiapan Pemukiman, Jakarta, Departemen Transmigrasi, Indonesia.
Above and below ground carbon stocks Aquifer productivity
Water catchments Fire events in Tripa + Plantations
Data provided by the World Agroforestry Centre
Aquifer productivity digitzed from Sheet I and part of sheet II of the 1:1,000,000 Hydrogeological map of Indonesia published in 2004 by the Directorate of Geological and Mining Area Environment.
Water catchments for northern Sumatra digitized by PanEco/YEL, based on SRTM 90m DEM and 1:50,000 Topographic maps (25m contour interval).
Fire events plotted from MODIS Terra and Aqua satellite data from Nov. 2000 to Aug. 2010 provided by the Fire Information for Resource Management System (FIRMS) (see reference: NASA/University of Maryland, 2002). Plantation concession boundaries digitized by PanEco/YEL based on concession rights maps issued by National Land Agency of Aceh Province.
Tourism opportunities
Based on Tourism Map of Gunung Leuser National Park Tropical Rainforest Heritage of Sumatra UNESCO-DESMA Center, 2010