Yanarita, Yanarita
The Journal is published by Graduate Programe of Lambung Mangkurat University

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ANALYSIS OF VEGETATION IN SPECIAL PURPOSE FOREST OF TUMBANG NUSA, JABIREN RAYA SUBDISTRICT, CENTRAL KALIMANTAN Sosilawaty, Sosilawaty; Yanarita, Yanarita; Andrean, Tudi
TROPICAL WETLAND JOURNAL Vol 2, No 3 (2016)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

Forests are natural resources that provide double benefits, direct and indirect benefits. The direct benefit of forest is as a source of various types of goods, such as woods, saps, barks, leaves, roots, fruits, and flowers that can be used directly by humans or become raw materials for various industries. The special-purpose forest of Tumbang Nusa is a secondary peat swamp forest. Peat swamp forest is a forest formation quite widespread in Indonesia. The term arises because swamp forest and peat forest are basically always adjacent and often do not have clear boundaries that are so-called peat swamp forests. The purpose of this study was to find out the structure and species composition (species dominance, species diversity, species richness and species evenness) of secondary peat swamp forest vegetation in special-purpose forest of Tumbang Nusa, Jabiren Raya Subdistrict, Central Kalimantan Province. The results of the study showed that the vegetation structure by diameter classes was dominated by the vegetation with small diameter (0-9 cm) and by height classes was dominated by the vegetation with low height-class (0-5 m). The diversity of vegetation in the study plots showed that there were 42 species of vegetation consisting of 24 families, and the most common species found were the family of Lauraceae (5 species), Dipterocarpaceae (4 species), Myristicaceae, Myrtaceae and Guttiferae (3 species), Podocarpaceae, Apocynaceae, Ebenaceae, Moraceae and Annonaceae (2 species), and a few other family (one species of each). The species diversity at seedling and sapling stages was moderate (H' ≥ 2 and < 3) while the diversity at pole and tree stages was low (H' < 2). The values of species richness index at seedling, sapling and pole stages were moderate (R = 3.5 - 5.0) while at the tree stage was relatively low (R > 3.5). The species evenness index at seedling and sapling stages was high (E > 0.6) while at the pole and tree stages moderate (E = 0.3 to 0.6).
AGROFORESTRY TECHNIQUES ON PEATLAND IN SABARU VILLAGE, PALANGKARAYA Yanarita, Yanarita; Rotinsulu, Johanna M
TROPICAL WETLAND JOURNAL Vol 2, No 3 (2016)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

Central Kalimantan with an area of 15,356,400 hectares have the degraded area of 4,636,890 hectares, some of which are peatlands. Peatlands are different from mineral lands or other organic lands. The chemical properties and characteristics of the peat including high acidity, low nutrient availability, and level of pyrite or sulfur should become the critical concerns for the success of land rehabilitation. One of the rehabilitation measures for degraded peatlands is by carrying out agroforestry techniques, the cropping patterns combining forest and agricultural crops that are mutually synergistic, with the goal of timber production in the long-term and crop production in the short term to meet the daily needs. The community development on agroforestry techniques on peatland in Sabaru Village, Palangkaraya, is one way to provide the insight to public to use lands to increase their income while improving and increasing the land productivity. The methods used in the agroforestry techniques in the village were the extension and training. The selected forest crop was meranti (Shorea Belangeran) and the perennial crops were petai (Parkia speciosa), mango (Mangifera indica) and rambutan (Niphelium lappaceum), while the agricultural crops were okra (Abelmoschus esculentus) and cayenne pepper (Capsicum frutescens), and the versatile crops turmeric (Curcuma domestica), lemongrass (Cymbopogon nardus), red ginger (Zingiber officinale Var. Rubrum Rhizoma), and kencur (Kaempferia galanga L.). The extension was performed by introducing the types of forest and agricultural crops, land preparation, planting techniques, and maintenance. The training was conducted by carrying out direct practices of agroforestry techniques, which created a pilot project on an area of 0.5 hectares. After 5 months, the results showed that Shorea Belangeran and Parkia speciosa had the growth percentage of 90%. Although the agricultural and versatile crops grew well, they were used only for everyday purposes.