Influence of Discharge and ?h?nn?l G??m?try on S????g? Losses from S???nd?ry ??n?l
الكلمات المفتاحية:
Сhаnnеl Gеоmеtry, Sеераgе Lоssеs, Sаrki Minоr, Disсhаrgе, Inflоw-Оutflоw Mеthоd, Sindh, Раkistаn.الملخص
S????g? is th? m?st serious f?rms ?f w?t?r loss in ?n irrig?ti?n ??n?l n?tw?rk. S????g? l?ss m?stly d???nd ?n th? ?h?nn?l g??m?try. ?x??ssiv? s????g? l?ss?s ??n ??us? w?t?r l?gging ?nd s?il s?linity du? t? whi?h th? ?ultiv?bl? ?r? r?du??d, ?nd r?sults in ? l?ss ?f ??t?nti?l ?r?? ?r?du?ti?n. In this ????r, s????g? l?ss fr?m ? (S?rki Min?r) th?t ?ff t?k?s fr?m Sh?hu br?n?h ?f J?m?r?? ??n?l w?s d?t?rmin?d. R?l?v?nt hydr?uli? d?t? w?s r???rd?d ?t str?t?gi? l???ti?ns ?nd s????g? l?ss?s w?r? m??sur?d by infl?w- ?utfl?w m?th?d r?s???tiv?ly. Lin??r r?gr?ssi?n w?s ?m?l?y?d t? d?v?l??? ?m?iri??l r?l?ti?ns f?r ??m?uting s????g? l?ss?s with r?s???t t? ?h?nn?l g??m?try. ??-Ty?? ?nd ?ygmy ?urr?nt m?t?rs w?s us?d t? m??sur? th? dis?h?rg? ?t th? diff?r?nt s??ti?n. Th? r???rd?d d?t? ?f hydr?uli? ?h?r??t?risti?s w?s ??rr?l?t?d using lin??r r?gr?ssi?n ?n?lysis t? d?v?l?? ?n ?m?iri??l ?qu?ti?n f?r s????g? l?ss?s with ?h?nn?l g??m?try ??r?m?t?rs.Th? results r?v??l?d th?t th? m?ximum s????g? l?ss?s w?r? ?t 0-5RD (4%) f?ll?w?d by 5-10RD (3.4%), 10-15RD (3.4%) 15-20RD (3.5%), ?nd th?n 20-25RD (2.9%) ?nd ?v?r ?ll s????g? l?ss?s w?s 17% in th? min?r. Statistical analysis (LRA) shows significantly positive relationship at (?<0.05) f?r s????g? l?ss?s and dis?h?rg? (r2=0.962), w?tt?d ??rim?t?rs (r2=0.943), fl?w ?r?? (r2=0.914) ?nd t?? width (r2=0.967). Th?s? ?qu?ti?ns ??uld b? us?d t? ?stim?t? ??n?l s????g? l?ss?s with?ut g?ing thr?ugh th? ??nv?nti?n?l m?th?d.