PENGALAMAN DAN PEMBELAJARAN REHABILITSI DAN RESTORASI LAHAN GAMBUT DI INDONESIA*(Experience and Lessons learn from Peatlands Rehabilitation andRestoration in Indonesia)
ABSTRAK
Peatlands is a unique ecosystem, rich of biodiversity, providing range of environmental services including regulatory water system and carbon sink. Unfortunately, they have been severely degraded as consequence from some commercial developments (i.e timber concession, plantation, mining, agriculture development), illegal logging, encroachment, and fire. Unfortunately, rehabilitation of peatlands is difficult, costly and low/less successful rate. Facilitated by CCFPI project (Climate Change, Forest and Peatlands in Indonesia) and CKPP (Central Kalimantan Peatlands Project), Wetlands International Indonesia Programme carried out peatlands rehabilitation with different approaches, using indigenous species and adapting to site specific condition. In Jambi Province, rehabilitation was conducted in 20 ha of ex-burnt area in Berbak National Park. With the purpose to adapt flooding, artificial mound system was applied. While in Central Kalimantan province (ex-mega rice project), rehabilitation was integrated with hydrology restoration. Planting was focused in ex-burnt area, open area alongside primary canal, and at the dam construction. From these programs, it was learnt that selection of appropriate species and planting site are very important to achieve the success of rehabilitation. Some local species including Jelutung paya Dyera polyphylla (lowii), Pulai rawa Alstonia pneuomatophora, Tumih Combretocarpus rotundatus, Belangiran Shorea belangeran, considered to be promising species to rehabilitate ex-burnt area. While for the wet areas, Perupuk Lapopetalum spp, Terentang Campnosperma spp, and Pandanus heterophylus are strongly recommended. Especially for drained peatlands, rehabilitation would be more effective conducted after hydrology
intervention (blocking canal). Apart from that, the assurance and security from various threats (i.e fire treats, land conversion) post program period is very crucial to ensure planted trees surviving in the future.
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