Analisis Respon Hidrologi dan Simulasi Teknik Konservasi Tanah dan Air Sub DAS Cimanuk Hulu: Analysis of Hydrology Response and Simulation of Soil and Water Conservation Enginerring in Upstream Cimanuk Sub Watershed

Gilang Munggaran (Alumni Program Studi Ilmu Tanah, Sekolah Pascasarjana, Institut Pertanian Bogor, Jl. Meranti Kampus IPB Dramaga, Bogor 16680)
Yayat Hidayat (Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian IPB, Jl. Meranti Kampus IPB Dramaga, Bogor 16680)
Surya Darma Tarigan (Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian IPB, Jl. Meranti Kampus IPB Dramaga, Bogor 16680)
Dwi Putro Tejo Baskoro (Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian IPB, Jl. Meranti Kampus IPB Dramaga, Bogor 16680)

Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment)
Vol 19 No 1 (2017): Jurnal Ilmu Tanah dan Lingkungan

Cimanuk Watershed is a priority catchment in West Java Province. The objective of the study is to analyze various land-use scenarios to improve base flow and lateral flow. The analysis use SWAT Hydrology model. The study showed that the model has a good performance in predicting flow discharge produced NSE 0.56 (satisfactorily) and R2 0.70. There are four scenarios to be analyzed. The best base flow and lateral flow analyses are from the first scenario with soil and water conservation techniques. The scenario resulted in the river regime coefficient by 78 (moderate), reduce direct runoff by 40.76% and increase lateral by 536.95 mm. Keywords: Baseflow, landuse, lateral flow, soil, and water conservation techniques, SWAT model