KAJIAN NILAI KEKASARAN DAN KONSTANTA BEBERAPA KONDISI SALURAN TERSIER PADA JARINGAN IRIGASI NAMU SIRA SIRA DESA NAMU UKUR UTARA KECAMATAN SEI BINGAI KABUPATEN LANGKAT
ABSTRACT: Most of the tertiary
irrigation in Namu Ukur Utara Village are land channels. This condition will
affect the discharge and the water distribution efficiency for paddy field. The
water distribution efficiency will be affected by water flow rate and channels
condition, where both of this factor could be manifested through the Manning’s value and Chezy constant. This research
was aimed to determine the Maning’s
value and Chezy constant in 3 tertiary vegetated channels and trimmed channels at
Namu Ukur Utara
Village Namu Sira
Sira Irrigation networks
Langkat District. The
Manning’s value coefficients for
the three vegetated channels were 0,278; 0,268 and 0,185 and the Chezy
constantwere 2,31; 2,48 and 3,63 respectively. While the Manning’s value
coefficients for the trimmed channels were 0,247; 0,229 and 0,138 and the Chezy
constant were 2,61; 2,90 and 4,66 respectively.
Penulis: Hisyam Pahlevi,
Sumono, Lukman Adlin Harahap
Kode Jurnal: jppertaniandd140314
