An estimated 88% of Sumatran orangutan habitat is on land classiﬁed by Indonesian Government studies (RePPProT) as completely unsuitable for cultivation of major crops such as oil palm, rubber, robusta coffee or cocoa. Only 1.3% of orangutan habitat is deemed ideal for one or more of these crops, while 10.7% could be suitable with signiﬁcant inputs, such as fertilizer and irrigation.
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From collection: Orangutans and the Economics of Sustainable Forest Management in Sumatra
Riccardo Pravettoni, UNEP/GRID-Arendal