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The Potential of Nipa Forests in Rokan Hilir
Nipa forests along Rokan Hilir's coast and tidal rivers offer ecological value and opportunities for local communities.
Rokan Hilir Regency has nipa palm (Nypa fruticans Wurmb.) resources along its coast and tidal rivers. A member of the palm family, nipa is also part of mangrove forest ecosystems. Its sap is generally tapped for drinking, while its leaves are used for roofing, walls and woven baskets.
Interpretation of Landsat 8 imagery from 2013 and SPOT 5 imagery from 2012 estimated 384.53 hectares of nipa along rivers and swamps in Rokan Hilir. The stands were distributed across 16 villages in 5 districts: Bangko, 202.49 hectares; Sinaboy, 145.95; Kubu, 14.11; Kubu Babussalam, 12.95; and Pasir Limau Kapas, 9.03 (Rudianda Sulaeman, 2013).
Nipa Palm Resources
Research by Heriyanto and colleagues (2011) reported an average of 1,972 nipa palms per hectare, including 674 fruiting palms producing 71,476 mature fruits.
A nipa resource survey by Rokan Hilir’s Village Development and Community Empowerment Programme (P3MD) and PT Unilever Indonesia. Photo: Broto, 2020
Nipa Flour
Mature nipa fruit can be processed into flour. Estimated mature fruit flesh production of 2.55 tonnes per hectare could yield 1.19 tonnes of flour. Nipa fruit flour has potential as an alternative food, with lower fat content than rice or maize flour and plant protein needed by the body.
Nipa Sugar
Nipa sugar is made from sap. A palm can yield up to 1.5 litres daily, with average production generally ranging from 0.33 to 1 litre per palm per day. The article estimates potential sap production of 600 litres per hectare daily, which could produce up to 120 kg of brown nipa sugar per hectare.
Bioethanol Feedstock
Asbudi Salam and colleagues (2019) estimated potential bioethanol production of 3,979 litres per hectare annually. The original account also cited a potential figure of 1.5 million litres of bioethanol per hectare per year if Rokan Hilir’s nipa resources were utilised.
Local communities had not yet made full use of nipa, harvesting mainly for household needs. Mangrove timber extraction for construction poles was more common and could damage mangrove forests. The range of possible nipa products points to a need for joint efforts to develop sustainable natural resource use alongside stronger community livelihoods.