Analysis of Hydrology Response and Simulation of Soil and Water Conservation Enginerring in Upstream Cimanuk Sub Watershed: Analisis Respon Hidrologi dan Simulasi Teknik Konservasi Tanah dan Air Sub DAS Cimanuk Hulu
| Main Authors: | Munggaran, Gilang, Hidayat, Yayat, Tarigan, Surya Darma, Baskoro, Dwi Putro Tejo |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University
, 2019
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| Online Access: |
http://journal.ipb.ac.id/index.php/jtanah/article/view/25685 http://journal.ipb.ac.id/index.php/jtanah/article/view/25685/16716 |
Daftar Isi:
- DAS Cimanuk hulu merupakan salah satu DAS yang prioritas di Jawa Barat. Penelitian ini bertujuan untuk menganalisis berbagai skenario penggunaan lahan untuk memperbaiki aliran dasar dan aliran lateral. Analisis menggunakan Model Hidrologi SWAT. Hasil penelitian menunjukan bahwa kinerja model mampu memprediksi debit aliran dengan nilai NSE 0.56 (memuaskan) dan R2 0.70. Ada empat skenario yang akan dianalisis. Aliran dasar dan aliran lateral terbaik berasal dari skenario pertama dengan penerapan teknik Konservasi Tanah dan Air. Skenario tersebut menghasilkan koefisien rezim sungai sebesar 78 (sedang), mengurangi aliran permukaan (direct runoff) sebesar 40.76% dan meningkat lateral sebesar 536.95 mm. Kata kunci: Aliran dasar, penggunaan lahan, aliran lateral, teknik konservasi tanah dan air, model SWAT
- 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