ABDUL HARIS M.NUR TAIB (201210340311068)

ABDUL HARIS M.NUR TAIB (201210340311068) Perhitungan LuasContoh Perhitungan di petak TersierSkala 1 : 36.0001 cm : 36.000 cm1 cm : 360 m1 cm2 : 3602 m21 cm2:129600 m21 cm2: ha1 cm2:12,96 ha B6 . KiBerdasarkan hasil ploting di millimeter block luas petak = 5,3 kotak cm2L = 5,3 x 12,96 = 68,688 ha M5 . KaBerdasarkan hasil ploting di millimeter block luas petak = 6,9 kotak cm2L = 6,9 x 12,96 = 89,424 ha

Perhitungan NFRContoh pehitungan NFR Bulan Desember Periode 1ET0: 4,20 mm/hrP: 3,00 mm/hrT: 30 hariS: 300 mmRe: 0,392 mm/hr

M: (1,1 ET0 + P): (1,1 (4,20) + 3): 7,62 mm/hr

k : : : 0,762IR: 1 mm/hr: : 1 mm/hr: 0,0001157m3/dt/ha : 14,29 mm/hr1 mm/hr: 0,1157 l/dt/NFR: IR - Re: 14,29 0,392: 13,898 mm/hr ( 0,1157 ): 1,608 l/dt/ha Bulan Januari Periode 2 ET0: 4,40 mm/hr P: 3,00 mm/hr : 1,075 (koef. Rata-rata tanaman) : 1,65 mm/hr Re: 0,588 mm/hr

ETc: ET0 x : 4,40 x 1,075: 4,73 mm/hrNFR: ETc + + P - Re : 4,73 + 1,65 + 3,00 0,588 : 8,792 mm/hr ( 0,1157 ) : 0,017 l/dt/hr ( Jadi, NFR yang dipakai yaitu NFRmax = 1,608 l/dt/ha )

Perhitungan Debit SaluranContoh perhitungan debit saluran Tersier Saluran B6.KiNFR: 1,608 l/dt/haLuas: 68,688 haet: 0,8

Q: A x NFR: 68,688 x 1,608: 110,45 l/dtQt: : : 138,06 l/dt Saluran M5.KaNFR: 1,608 l/dt/haLuas: 89,424 ha : 0,8

Q : A x NFR: 89,424 x 1,608: 143,79 l/dt

Qt: : : 179,74 l/dt( Perhitungan selanjutnya disajikan di tabel )

Tabel Perhitungan Debit pada petak tersiersaluranluas petak(ha) NFR(l/dt/ha)EtQ(l/dt)Qt(l/dt)

K1.Ka90,721,6080.8145,88182,35

K1.ki197,21,6080.8156,30195,37

K1.ki284,241,6080.8135,46169,32

B1.Ka99,7921,6080.8160,47200,58

B1.Ki189,4241,6080.8143,79179,74

B1.Ki293,961,6080.8151,09188,86

B2.Ka86,8321,6080.8139,63174,53

B2.Ki189,4241,6080.8143,79179,74

B2.Ki299,7921,6080.8160,47200,58

B3.Ka99,7921,6080.8160,47200,58

B3.Ki198,4961,6080.8158,38197,98

B3.Ki299,921,6080.8160,67200,84

B4.Ka93,961,6080.8151,09188,86

B4.Ki199,7921,6080.8160,47200,58

B4.Ki268,6881,6080.8110,45138,06

B5.Ka54,4321,6080.887,53109,41

B5.Ki77,761,6080.8125,04156,30

B6.Ka71,281,6080.8114,62143,27

B6.Ki68,6881,6080.8110,45138,06

K2.Ka79,7041,6080.8128,16160,21

K2.Ki179,3151,6080.8127,54159,42

K2.Ki2811,6080.8130,25162,81

M1.Ka74,521,6080.8119,83149,79

M1.Ki179,3151,6080.8127,54159,42

M1.Ki272,2781,6080.8116,22145,28

M2.Ka85,5361,6080.8137,54171,93

M2.Ki182,9441,6080.8133,37166,72

M2.Ki259,6161,6080.895,86119,83

M3.Ka84,241,6080.8135,46169,32

M3.Ki180,741,6080.8129,83162,29

M3.Ki261,31,6080.898,57123,21

M4.Ka49,891,6080.880,22100,28

M4.Ki179,7041,6080.8128,16160,21

M4.Ki290,721,6080.8145,88182,35

M5.Ka89,4241,6080.8143,79179,74

M5.Ki68,6881,6080.8110,45138,06

Contoh Perhitungan debit saluran sekunder Saluran BB6NFR: 1,608 l/dt/haLuas: (71,28 + 68,688) ha: 139,968 haet: 0,8es: 0,85

Q: A x NFR: 139,968 x 1,608: 225,07 l/dtQs: : : 330,98 l/dt Saluran BM5NFR: 1,608 l/dt/haLuas: (89,424 + 68,688) ha: 158,112 haet: 0,8es: 0,85

Q: A x NFR: 158,112 x 1,608: 254,24 l/dtQs: : : 373,89 l/dt ( Perhitungan selanjutnya disajikan di tabel )Tabel Perhitungan Debit pada saluran sekunderSaluran Bastiong

Luas Petak(ha)NFR(l/dt/ha)Et

Es

Q(l/dt)Qs(l/dt)

BB11392,0321,6080,80,852238,393291,75

BB21108,8561,6080,80,851783,042622,12

BB3832,8081,6080,80,851339,161969,35

BB4534,61,6080,80,85859,641264,17

BB5272,161,6080,80,85437,63643,58

BB6139,9681,6080,80,85225,07330,98

Saluran Makian

Luas Petak(ha)NFR(l/dt/ha)et

es

Q(l/dt)Qs(l/dt)

BM1830,8191,6080,80,851335,961964,64

BM2832,8021,6080,80,851339,151969,33

BM3604,7061,6080,80,85972,371429,95

BM4378,4261,6080,80,85608,51894,87

BM5158,1121,6080,80,85254,24373,89

Contoh perhitungan debit saluran primer Saluran BK1NFR: 1,68 l/dt/haLuas: 2735,03 haet: 0,8es: 0,85ep: 0,9

Q: A x NFR: 2735,03 x 1,608: 4397,93 l/dtQp: : : 7186,16 l/dt( Perhitungan selanjutnya disajikan di tabel )

Tabel Perhitungan Debit pada saluran primerSaluran KayumerahLuas Petak(ha)NFR(l/dt/ha)Et

Es

Ep

Q(l/dt)Qp(l/dt)

BK12735,031,6080,80,850,94397,937186,16

BK21070,841,6080,80,850,91721,912813,57