Evaluation of the Success of the Watershed Rehabilitation Project in Bombana Regency Based on Cook Method’s Runoff Coefficient

Watersheds have an important role in managing rainwater. A good watershed can provide sufficient water for the community in the dry season and does not cause flooding in the rainy season. Therefore, watershed preservation is necessary as an effort to maintain or improve its function. Rehabilitation...

Full description

Bibliographic Details
Main Authors: Ery Nuralamsyah, Mariana Marselina
Format: Article
Language:Indonesian
Published: Diponegoro University 2023-07-01
Series:Jurnal Presipitasi
Subjects:
Online Access:https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51104
_version_ 1797294082304770048
author Ery Nuralamsyah
Mariana Marselina
author_facet Ery Nuralamsyah
Mariana Marselina
author_sort Ery Nuralamsyah
collection DOAJ
description Watersheds have an important role in managing rainwater. A good watershed can provide sufficient water for the community in the dry season and does not cause flooding in the rainy season. Therefore, watershed preservation is necessary as an effort to maintain or improve its function. Rehabilitation is an effort to restore, maintain, and improve the watershed function. In this study, rehabilitation was carried out in an area of 285 ha which cuts two watersheds, Langkapa and Poleang watershed. The success of this rehabilitation can be reviewed through the runoff coefficient before and after rehabilitation. The runoff coefficient is a value that expresses the percentage of rainwater that turns into surface runoff water. That value can be an indicator of the watershed quality. The determination of the runoff coefficient in this study used the Cook Method which considers four physical parameters, land cover, slope, soil infiltration, and surface deposit/flow density. The results showed the runoff coefficient decreased after the rehabilitation from 68.54% to 65.85% which means the rehabilitation has improved the watershed quality. But those change is not significant because the rehabilitation location actually is not the priority land (critical land) that needs rehabilitation.
first_indexed 2024-03-07T21:25:00Z
format Article
id doaj.art-8bef35e89c25428c89526395f1adaae2
institution Directory Open Access Journal
issn 1907-817X
language Indonesian
last_indexed 2024-03-07T21:25:00Z
publishDate 2023-07-01
publisher Diponegoro University
record_format Article
series Jurnal Presipitasi
spelling doaj.art-8bef35e89c25428c89526395f1adaae22024-02-27T06:33:21ZindDiponegoro UniversityJurnal Presipitasi1907-817X2023-07-0120230531510.14710/presipitasi.v20i2.305-31522473Evaluation of the Success of the Watershed Rehabilitation Project in Bombana Regency Based on Cook Method’s Runoff CoefficientEry Nuralamsyah0Mariana Marselina1Institut Teknologi Bandung, IndonesiaInstitut Teknologi Bandung, IndonesiaWatersheds have an important role in managing rainwater. A good watershed can provide sufficient water for the community in the dry season and does not cause flooding in the rainy season. Therefore, watershed preservation is necessary as an effort to maintain or improve its function. Rehabilitation is an effort to restore, maintain, and improve the watershed function. In this study, rehabilitation was carried out in an area of 285 ha which cuts two watersheds, Langkapa and Poleang watershed. The success of this rehabilitation can be reviewed through the runoff coefficient before and after rehabilitation. The runoff coefficient is a value that expresses the percentage of rainwater that turns into surface runoff water. That value can be an indicator of the watershed quality. The determination of the runoff coefficient in this study used the Cook Method which considers four physical parameters, land cover, slope, soil infiltration, and surface deposit/flow density. The results showed the runoff coefficient decreased after the rehabilitation from 68.54% to 65.85% which means the rehabilitation has improved the watershed quality. But those change is not significant because the rehabilitation location actually is not the priority land (critical land) that needs rehabilitation.https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51104watershedrehabilitationrunoff coefficientcook methodphysical parameters
spellingShingle Ery Nuralamsyah
Mariana Marselina
Evaluation of the Success of the Watershed Rehabilitation Project in Bombana Regency Based on Cook Method’s Runoff Coefficient
Jurnal Presipitasi
watershed
rehabilitation
runoff coefficient
cook method
physical parameters
title Evaluation of the Success of the Watershed Rehabilitation Project in Bombana Regency Based on Cook Method’s Runoff Coefficient
title_full Evaluation of the Success of the Watershed Rehabilitation Project in Bombana Regency Based on Cook Method’s Runoff Coefficient
title_fullStr Evaluation of the Success of the Watershed Rehabilitation Project in Bombana Regency Based on Cook Method’s Runoff Coefficient
title_full_unstemmed Evaluation of the Success of the Watershed Rehabilitation Project in Bombana Regency Based on Cook Method’s Runoff Coefficient
title_short Evaluation of the Success of the Watershed Rehabilitation Project in Bombana Regency Based on Cook Method’s Runoff Coefficient
title_sort evaluation of the success of the watershed rehabilitation project in bombana regency based on cook method s runoff coefficient
topic watershed
rehabilitation
runoff coefficient
cook method
physical parameters
url https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51104
work_keys_str_mv AT erynuralamsyah evaluationofthesuccessofthewatershedrehabilitationprojectinbombanaregencybasedoncookmethodsrunoffcoefficient
AT marianamarselina evaluationofthesuccessofthewatershedrehabilitationprojectinbombanaregencybasedoncookmethodsrunoffcoefficient