ACADSTAFF UGM
| Title | : | Analisis Kondisi Hidrologi terhadap Perkembangan Wilayah Perkotaan Studi Kasus DAS Kali Belik Yogyakarta |
| Author | : |
Prof. Dr. Slamet Suprayogi, M.S. (1) Hendy Fatchurohman, S.Si., M.Sc. (2) Dr. Margaretha Widyastuti, M.T. (3) |
| Date | : | 0 2019 |
| Keyword | : | perubahan penggunaan lahan; debit puncak; kualitas air landuse change; maximum discharge; runoff; water quality perubahan penggunaan lahan; debit puncak; kualitas air landuse change; maximum discharge; runoff; water quality |
| Abstract | : | The consequence of rapid urbanization in the city of Yogyakarta lead to hydrological system change. Population and economic growth are the main reason for the increase in living place demand in the city of Yogyakarta. Landuse change is the impact of urban sprawl, which lead to the diminishing of groundwater resources and the increasing of overland flow. The extension of the built area that reaches the peri-urbans area and countryside will absolutely affect the quality and quantity of water resources. The results show that landuse conversion occurred in several landuses in the sub-watershed of Belik. The main landuse change that detected from 2003-2012 is the diminishing of vegetated land and the increasing number of built area. Land conversion increased the run-off coefficient and Curve Number, that lead into the contamination of groundwater. The concentration of phosphate and coliform in almost all points exceeds the minimum standard of potable water. These results indicate that domestic wastewater and septic tank misconstructions play important role toward groundwater contamination. From the flownets construction, it shows that the groundwater flow from the northern part into southern part of Belik sub-watershed with potential discharge up to 104 liter/second. There is also possibility for groundwater contamination to extent and reach the downstream area. the water resources. |
| Group of Knowledge | : | Geografi |
| Original Language | : | Bahasa Indonesia |
| Level | : | Nasional |
| Status | : |
Published
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