PENGARUH POROSITAS TANAH DAN PERSENTASE LUAS LAHAN TERHADAP KOEFISIEN ALIRAN PERMUKAAN

Didik Setiawan, Bambang Surendro, Muhammad Amin

Abstract


The extent of a region of the earth's surface in the form of land and forest area with the increase of population, will change the land use as a form of human needs itself, one of which is the expansion of settlements is accompanied by covered of pavement, then the soil is able to function to absorb the water will be the region watertight, so that the necessary reference to the use of land for the balance of the environment is maintained. The purpose of this study was to determine the effect of porosity value and proportion of the value of the land area of the surface flow coefficient (C). This research was conducted using a model catchment area measurements conducted that measure the value of soil porosity, soil density, intensity of average rainfall, runoff volume, and flow coefficient (C). The slope of the land used is 2%. variable percentage of land area (PLA) in this research is 20%, 30% and 10% forest, 40%, 50% and 10% forest and 60%. The results showed that the highest value of C variable PLA 60% with coefficient 0,687. On the value of soil porosity (n) 16% C values of 0.300, while the porosity of the soil (n) 20% of the value of C 0.264 and the value of soil porosity (n) 35% gain with a value of C 0.129. ANOVA test results showed that the soil porosity and percentage of land area (PLA) positive and significant impact on the flow coefficient (C).

Full Text:

Tidak berjudul

References


Daud S. Saribun.,(2007) , Pengaruh Jenis Pengunaan Lahan Dan Kelas

Kemiringan Lereng Terhadap Bobot isi, Porositas Total Dan Kadar Air Tanah Pada SUB-DAS Cikapundung Hulu.

Idar (2010)., Besarnya Nilai Koefisien runoff Hutan Produksi di Areal

HUTANI I sub DAS Jenebereng Hilir Kecamatan Pangloe Kabupaten Gowa Hartono, 2008, Statistik Untuk Penelitian, Tampan Pekan Baru Riau.

Indro Saputro, Cahyo., 2016, Skripsi, Universitas Tidar. Pengaruh jenis

permukaan terhadap limpasan air.

J. Patanduk, A. Arsyad, A. Rauf (2014)., Pengaruh Perubahan Tata Guna Lahan Terhadap Koefisien Limpasan ( Run Off ) Kota Makassar Berbasis Sig.

Mahardika Putra Purba ( 2009 )., Besarnya.Aliran,Permukaan runoff Pada Berbagai Tipe Kelerengan Dibawah Tegakan Eucalypcus spp.

Ni’matul Khasanah, Betha Lusiana, Farida dan Meine van Noordwijk (2004)., Simulasi Limpasan Permukaan Dan Kehilangan Tanah Pada Berbagai Umur Kebun Kopi: Studi Kasus Di Sumberjaya, Lampung Barat

Santi Sari., Studi Limpasan Permukaan Spasial Akibat Perubahan Penggunaan Lahan (Menggunakan Model Kineros).

Surendro, Bambang.,1998, Mekanika Tanah,Universitas Tidar, Magelang.

Sosrodarsono, Suryono.,1980, Hidrologi Untuk Pengairan, P.T. Pradnya Paramita Jakarta.

Sobriyah.,2012, Model Hidrologi, UPT Penerbitan dan Percetakan UNS (UNS press)

Triatmodjo, Bambang.,2008, Hidrologi Terapan, Beta Offset Yogyakarta.

Yusuf, Cahyo.,2012, Pedoman Penulisan Skripsi Universitas Tidar, Magelang.

https://www.exceleasy.com/example/anova.html.Di akses pada tanggal 09 Januari 2017.

https://www.junaidichaniago.wordpress.com/2008/06/25/anilsa-regresidengan excel/ Diakses pada tanggal 09 Januari 2017.

https://id.wikipedia.org/wiki/Stopwach.Di akses pada tanggal 25 Januari

https://www.google.co.id/semen&espv. Diakses pada tanggal 8 Januari 2017.


Article Metrics

Abstract view : 141 times
Tidak berjudul - 0 times

Refbacks

  • There are currently no refbacks.


ISSN 2540-900X