EVALUASI PENGGUNAAN LAHAN DAERAH ALIRAN SUNGAI SERANG MENGGUNAKAN SISTEM INFORMASI GEOGRAFIS

• Main Authors: , SAYED AHMAD ZAKI YAMANI, , Dr. Senawi, M.P.
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2012
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/98690/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=54578
• Institution: Universitas Gadjah Mada

The increasing population, economic activities and the constructions have led to various problems of land conversion in the watershed area, which no longer consider the functions and capabilities of the land use. Based on the biophysical and socio-economic problems, Serang Watershed includes into the scale of priorities I (SK.Menhut No. 346/Menhut-V/2005). Therefore, it is necessary to reformulate the land use of the Serang watershed, so that it can function optimally in supporting the living. The purposes of this study are to evaluate and formulate the suitability of the land use of Serang Watershed based on the areal function directives and the land use capability. This research is conducted by using land units as the analytical units. The determination of the areal function directives is carried out according to SK Mentan No. 837 on the year of 1980 while the classification of the land use capability is done based on restricting factors. The evaluation of the land use suitability is conducted by comparing the using of the actual land on the ground of areal function directives and the land use capability. The land use directives are formulated based on the evaluation. The results show that Serang Watershed has land use suitability based on the direction of area function 10,684.62 ha (49.17%) which is coherence, 6,958.73 ha (32.02%) does not correspond to a negative, 3,603.11 ha (16.58%) does not correspond to the positive and the rest, 484.22 ha (2.23%),,is the body of water. Based on the land use capability, the appropriate land use is 17,754.47 ha (81.70%), does not correspond to a negative 3,492.19 ha (16.07%) and the rest is a body of water. The land use directives based on the direction of area function and the land capability, are sustained to be 18,166.86 ha (83.60%) (the measures of technical civil conservation of 1,840.77 ha (8.47%), the measures of vegetative conservation of 4,981.60 ha (22.92%), the measures of vegetative conservation and technical civil of 4,501.68 ha (20.72%) and measures of conservation (vegetative and technical civil) the logging which is not clear-cutting of 6,842.81 ha (31.49%)), the land use is changed to be mixed cultivation/agroforestry system of public forest covering an area of 3,079.80 ha (14.17%), and the rest is the body of water of 484.22 ha (2.23%).