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ANALISIS KONDISI DAERAH RESAPAN AIR SUB DAS CISANGKUY MENGGUNAKAN ANALYTICAL HIERARCHY PROCESS (AHP)
Sub DAS Cisangkuy mempunyai peranan yang sangat penting sebagai daerah resapan air. Meningkatnya laju pertumbuhan penduduk dan kurangnya konservasi lahan menyebabkan banjir dan berkurangnya resapan air tanah. Tujuan dari penelitian ini adalah untuk menganalisis kondisi daerah resapan air di wilayah Sub DAS Cisangkuy menggunakan metode Analythical Hierarchy Process (AHP) dan analisis spasial. Metode Analythical Hierarchy Process (AHP) digunakan untuk proses skoring dan pembobotan, sedangkan metode analisis spasial digunakan untuk proses tumpang susun (overlay) peta kondisi resapan air. Hasil analisis pada penelitian ini disimpulkan kedalam lima kategori kondisi daerah resapan air yang terdiri dari kondisi baik, normal alami, mulai kritis, agak kritis dan kritis. Kondisi resapan baik memiliki luas 1101 Ha, kondisi normal alami 4225 Ha, kondisi mulai kritis 10543 Ha, kondisi agak kritis 14823 Ha, dan kondisi kritis 1484.01 Ha. Kondisi kawasan resapan air Cisangkuy didominasi oleh resapan agak kritis. Berdasarkan hasil analisis, kondisi resapan kritis, memiliki karakteristik campuran dengan jenis tanah tertinggi Gleisol Eutrik dan Andosol Eutrik, kemiringan tertinggi 8-40% datar sampai sangat curam, curah hujan agak besar 2300-2500 mm, penggunaan lahan didominasi hutan, dan kerapatan sedang sampai rendah 1.6-3.5 Km/Km2. The Cisangkuy sub-watershed has a very important role as a water catchment area. The increasing rate of population growth and lack of land conservation causes flooding and reduced groundwater infiltration. The aim of this research is to analyze the condition of water catchment areas in the Cisangkuy Sub-watershed area using the Analytical Hierarchy Process (AHP) method and spatial analysis. The Analytical Hierarchy Process (AHP) method is used for the scoring and weighting process, while the spatial analysis method is used for the overlay process of maps of water catchment conditions. The results of the analysis in this study were concluded into five categories of water catchment area conditions consisting of good condition, normal natural, starting to be critical, somewhat critical and critical. Good infiltration conditions have an area of 1101 Ha, normal natural conditions 4225 Ha, starting to critical conditions 10543 Ha, slightly critical conditions 14823 Ha, and critical conditions 1484.01 Ha. The condition of the Cisangkuy water catchment area is dominated by rather critical catchment. Based on the results of the analysis, the critical infiltration condition has mixed characteristics with the highest soil types being Gleisol Eutrik and Andosol Eutrik, the highest slope of 8-40% flat to very steep, relatively large rainfall of 2300-2500 mm, land use dominated by forest, and medium to medium density. low 1.6-3.5 Km/Km2.
KODEPRODI25201#Sains Informasi Geografi_S1, Universitas Pendidikan Indonesia
ANALISIS KONDISI DAERAH RESAPAN AIR SUB DAS CISANGKUY MENGGUNAKAN ANALYTICAL HIERARCHY PROCESS (AHP) (Text)
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G Geography (General)
GA Mathematical geography. Cartography