P.01 REVEGETATION OF PEATLANDS IN WEST KALIMANTAN WITH SUPERIOR COMMODITIES Aditya Hani 1 , M. Siarudin, Yonky Indrajaya Research and Development Institute for Agroforestry Technology. Jl. Ciamis-Banjar Km 4 Po Box 5. Ciamis. . Abstract Efforts to improve peatland can be carried out through restoration activities. This study evaluates the growth of four types of plants used in revegetation activities on deep peatland in Kubu Raya District. The study of the combination pattern of woody species and non-timber producers on peatland was compiled using a completely randomized block design (RCBD) consisting of 12 plant plots, four replications, each plot consisting of 100 plants with a spacing of 4 m x 3 m. Plant seeds come from cabutan (pulled out seed), kept and maintained in the community's seedlings in Central Kalimantan Province. The planting hole is made with 30 cm x 30 cm x 30 cm, then given 3 kg of manure/hole and 200 gr of agricultural lime per planting hole. The parameters measured were plant height and diameter. Measurement data were analyzed using a diversity test (ANOVA) if there were significant differences and then continued with Duncan's post-test. The results of the study showed that: (1) The jelutong plant is the most suitable species to be developed on deep peatlands because it has the fastest growth, and (2) Growth of jengkol and petai still needs to be improved by improving the physical and chemical properties of peat soil. Keywords: peatlands, revegetation, superior commodities, West Kalimantan 1. Introduction West Kalimantan has a peatland area of 1,680,134 ha or 30% of the total area of West Kalimantan Province, which is divided into peat with a thickness of <3 m with an area of 1,240,157 ha (73.8%) with sapric-hemic maturity and thickness > 3m 439,977 ha (26.2%) with the level of fibric [1] The area of peat distribution in West Kalimantan includes Kapuas Hulu, Sambas, Pontianak, Kubu Raya and Ketapang [2]. The peat forest area in Kubu Raya District of West Kalimantan continues to shrink due to the conversion of peat forests into settlements and cultivated land. In 1991 vegetation cover reached 66.31% but in 2010 it increased to 57.45% [2]. In West Kalimantan, especially in Kubu Raya Regency, peatlands are partly used by the community for intensive agricultural land. The community generally burns peatland in preparation for land for annual crops [3]. Changing peat forests into intensive agricultural land causes ecological damage. Nusantara, Sudarmadji, Djohan and Haryono [2] report that aeration of soil surface temperature and groundwater depth changes causing anaerobic changes to aerobes, which further increases microbial activity, thereby increasing decomposition of organic matter and CO2 release. As a result of the unwise use of peatland, it often causes peatland fires that result in ecological, economic, and social losses. Sawerah, Muljono and Tjitropranoto [4] stated that community participation in preventing peat fires is still low due to the low level of 1 Corresponding author. E-mail : adityahani@gmail.com Main author : Aditya Hani, M. Siarudin, Yonky Indrajaya Published in May 2021, http://publikasikr.lipi.go.id/index.php/satreps