ANALYSIS OF THE EFFECT OF LAND USE ZONE ON FLOOD DISPOSAL AND SEDIMENTATION OF THE KALI JIKEN RIVER FLOW IN THE SUB-DISTRICT OF BARENG-MOJOWARNO, JOMBANG REGENCY

Ullika Madawuri Pratidina, Titya (2021) ANALYSIS OF THE EFFECT OF LAND USE ZONE ON FLOOD DISPOSAL AND SEDIMENTATION OF THE KALI JIKEN RIVER FLOW IN THE SUB-DISTRICT OF BARENG-MOJOWARNO, JOMBANG REGENCY. Other thesis, Universitas Darul Ulum.

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Abstract

Discharge in the Jiken River Basin has increased from 2017 to 2019. On the other
hand, land use around the Jiken River watershed has also changed due to rapid
population growth and urban development and economic development. For this
reason, a study was carried out on the relationship between land use and the
increase in discharge that occurred in the Jiken River watershed. The Kali Jiken
watershed has a catchment area of 16.59 km2 and a river length of 17.41 km. The
highest elevation upstream of this river is 700 m above sea level. The data
required in the form of rainfall data, land use and topography. The hourly rainfall
intensity was obtained from the data of the maximum daily annual rainfall at the
stations of Bareng, Mojowarno, Rejoagung, Selorejo which were transformed
using the Polygon Thiessen formula. Meanwhile, to calculate the planned flood
discharge, the Rational method is used. The results showed that changes in land
use resulted in the value of the coefficient of flow (C) being greater so that the
resulting discharge became even greater, the value of rain intensity also affected
the results of the calculation of flood discharge. Flood discharge increased in the
100-year return period from 222.52 m3/s to 244.13 m3/s and changes in the total
sedimentation rate from 7,827,517 tons/ha/year to 4,290.555 tons/ha/year. Land
use in the Jiken River watershed changed from 2017 to 2019. The area of
residential land increased from 354.96 ha to 599.26 ha, Plantation from 328.78 ha
to 386.39 ha, Agriculture from 299.13 ha to 644.19 ha.

Item Type: Thesis (Other)
Uncontrolled Keywords: Land Use, Erosionand Sedimentation
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
University Structure > Fakultas Teknik > Teknik Sipil
University Structure > Fakultas Teknik > Teknik Sipil
Divisions: Fakultas Teknik > Teknik Sipil
Depositing User: Titya Ullika Madawuri Pratidina
Date Deposited: 13 Oct 2021 09:40
Last Modified: 13 Oct 2021 09:40
URI: http://repository.undar.ac.id/id/eprint/1531

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