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All Journal Agrotrop : Journal on Agriculture Science AGRITROP
WIYANTI -
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Agriculture, Biological Sciences & Forestry

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ARAHAN PENGGUNAAN LAHAN DENGAN METODE SKORING PADA SUB DAS UNDA HULU (RECOMMENDED LAND USE PATTERN BY SCORING METHOD AT UNDA WATERSHED) -, WIYANTI
AGRITROP Vol. 29, No. 4 Desember 2010
Publisher : AGRITROP

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Research has been conducted at Unda watershed. The aim of this experiment is to determine the land use pattern of Unda watershed. A method used in this research was by scoring which is introduced by Bambang Sukartiko. In this method, three factors has been considered such as : slope of land, soil type based on susceptibility to erosion, and daily rain intensity. Land unit has been determined with the compilation of maps of slope, soil type and land use. It was 32 land units has been determined. Based on the result of research, it was found that Unda watershed especially in forest area recommended the land use pattern was forest production and conservation forest. Meanwhile, in outer area, it was focused to be a plantation of perennial and annual crops, as well as a buffer zone. The forest production was found at land unit number of 9, 10, 11 and the conservation forest at land unit number 12. The annual plantation was found at land unit number 1, 5 and 6; while perennial crops was in land unit number 4 , 23, 24, 28 and 29. The buffer zone was in land unit number 2, 3, 7, 8, 13, 15,16, 17, 18, 19, 20, 21, 22, 25, 26, 27, 30, 31 32.
TINGKAT BAHAYA EROSI PADA KAWASAN HUTAN PRODUKSI WILAYAH GEROKGAK, KABUPATEN BULELENG, BALI WIYANTI -
Agrotrop : Journal on Agriculture Science Vol 1 No 2 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Erosion Hazard on Production Forest Area at Gerokgak, Buleleng, Bali The experiment about erosion hazard has been conducted at production forest area at Gerokgak, Buleleng, Bali. The aims of the research are to predict erosion and determine the erosion hazard. The method used in this research is USLE (Universal Soil Loss Equation). Land unit was classified base on slope, land use pattern, and soil type. The result of the research showed that soil erosion was classified as moderate to heavy. The moderate erosion was occurred at land unit 18 (58.104 tons/ha/year); heavy erosion at land unit 19 (65.059 tons/ha/year); 20 (31.342 tons/ha/year); and 24 (52.895 tons/ ha/year); and very heavy erosion at land unit 16 (934.799 tons/ha/year); 17 (668.072 tons/ha/year); 21 (266.799 tons/ha/year); 22 (285.735 tons/ha/year); 23 (65.652 tons/ha/year), 24 (260.962 tons/ ha/year); 25 (295.207 tons/ha/year); 26 (249.304 tons/ha/year and 271.329 tons/ha/year); and 27 (130.757 tons/ha/year).
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