Land use change impacts on discharge analysis using SWAT model at Ciherang Pondok DAM catchment area

4th International Symposium on LAPAN-IPB Satellite for Food Security and Environmental Monitoring

农业科学;生态环境科学

Utamahadi, M.A.^1 ; Pandjaitan, N.H.^1 ; Rau, M.I.^1

Department of Civil and Environmental Engineering, Faculty of Agricultural Technology, Bogor Agricultural University, IPB Darmaga Campus, PO BOX 220, Bogor

16002, Indonesia^1

关键词: Calibration and validations;    Catchment area;    Discharge analysis;    Discharge ratio;    Land-use change;    Soil and water assessment tool;    Water discharges;    Weather stations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/149/1/012015/pdf
DOI  :  10.1088/1755-1315/149/1/012015

来源: IOP

【 摘 要 】

The prompt increase of population influenced the requirement for new regions to fulfill people's primary needs. Its increased land use change and caused many impacts on the environment, including watersheds as well. Ciherang Pondok DAM catchment area is part of Cisadane watershed and was selected as the research area. This research aimed to analyse the water supply and water discharge change caused by the Urban Planning (RTRW) in 2020. The analysis was conducted using soil and water assessment tools (SWAT) model. Stages of this research were catchment area delineation, HRU identification, calibration and validation of models, and prediction of discharge and water demand. The result showed that RTRW of 2020 increased the maximum discharge of 1.6 m3/s and decreased the minimum discharge of 0.01 m3/s, hence the maximum and minimum discharge ratio increased 0.26% from 2016. Output discharge in 2020 at Ciherang Pondok Dam Catchment Area was classified as well, with discharge of 6.72 - 126.2 m3/s, and could fulfil water demand. For the best result, it is better to use climate data from weather stations inside the study area and it is required an improvement in data archiving system.