000 02966cas a2200409 a 4500
005 20260817162433.0
008 110920s1989 th uu|m rtt 0| a1eng d
035 _a.b10082177
099 9 _aAIT Thesis no. AE-89-63
100 1 _aSingh, Udai Bhan
245 1 0 _aAnalysis of spatial variability of soil properties in level basin irrigation
260 _aBangkok :
_bAsian Institute of Technology,
_c1989
300 _a75 p.
490 1 _aThesis ;
_vno. AE-89-63
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1989
520 _aA study has been made to evaluate the effect of spatial variability of soil properties o n the design of level b order method of irrigation. Variabilities of Infiltration characteristics and bulk density have been expressed by statistical approach u sing normal and lognormal frequency distributions . Th e study describes a procedure for designing level border irrigation method, using Soil Conservation Service, USDA approach . Water front advance rate predicted by SCS volume balance model for minimum, mean, and maximum infiltration has been compared with the observed advance rate curve. Opportunity time for level border has been plotted for four different stream sizes and compared with the observed opportunity time. Effect of observed variable Infiltration an d bulk density h as been evaluated on application efficiency a nd depth of water infiltrated . The variability of infiltration has been incorporated to calculate the mean and variance of depth infiltrated using variance technique for the evaluation of level border irrigation.
650 0 _aIrrigation, Furrow
700 1 _aMurty, V.V.N.,
_eChairperson
700 1 _aPaudyal, Guna N.,
_eCo-Chairperson
700 1 _aGoto, Akira,
_eExamination Committee
710 2 _aThe Government of Korea,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. AE-89-63
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B17915
907 _a.b10082177
_bmnait
_cs
902 _a240410
998 _b2
_c951012
_dm
_ea
_fs
_g0
945 _lmnait
945 _lmnait
945 _lmnarc
942 _c20
942 _c40
909 _aBarcode : 30050003004883
_bCREATED : 1994-05-16
_cRECORD # : i10084459
_dLPATRON : 1020741
_eLCHKIN : 2007-03-11
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 1
_jTOT RENEW : 0
909 _aBarcode : 30050003004875
_bCREATED : 1994-05-16
_cRECORD # : i10084460
_dLPATRON : 1009417
_eLCHKIN : 1997-12-23
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 2
_jTOT RENEW : 1
909 _aBarcode : 30050120364103
_bCREATED : 2016-05-27
_cRECORD # : i12998126
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
999 _c5021
_d5021