COMPARISON OF CALCAREOUS AND NON-CALCAREOUS CATCHMENTS IN VIEW OF SURFACE RUNOFF

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GHAZAVI G.; ESLAMIAN S.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2001 | Volume:7 | Issue:4 Page(s): 3-14

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Information Journal Paper

Title

COMPARISON OF CALCAREOUS AND NON-CALCAREOUS CATCHMENTS IN VIEW OF SURFACE RUNOFF

Author(s)

GHAZAVI G. | ESLAMIAN S. | Issue Writer Certificate

Keywords

DISCHARGEQ4

CALCAREOUS CATCHMENTQ4

NON-CALCAREOUS. CATCHMENTQ2

RUNOFF COEFFICIENTQ4

SPECIFIC DISCHARGE.Q4

Abstract

Karstic lands are one of the important resources in Iran and in the world. Therefore, investigation of these catchments are necessary for better using. In this article, the main objective is to compare hydrological characteristics of two types of catchments, calcareous rock and noncalcareous rock formed. Vehrgan catchments is a karstic watershed that mostly covered by limestone, and is located in Zagross mountain ranges on the Chahar-mahal-bakhtiary, Esfahan and Lorestan states boundaries, compared with a nonkarstic catchments, namely Golpayegan catchments that having a 160 kilometers distance from west of Esfahan and north of Vehregan in view of maximum DISCHARGEs, RUNOFF COEFFICIENT, specific DISCHARGE and relation between maximum instantaneous DISCHARGE and maximum daily mean DISCHARGE with the similar climate, catchments area, slope and annual rainfall. This study indicates that RUNOFF COEFFICIENT is 1.28 for Vehregan's karstic catchments and is 0.32 for Golpayegan that is a non-karstic catchments. Specific DISCHARGE for vehregan catchments on a concurrent period is 0.0174 and for Golpayegan is 0.051 DISCHARGEs for vehrgan catchments on a concurrent period is 0.0174 and for Golpayegan is 0.051 m3/sec/km2. Relation between maximum instantaneous DISCHARGE and maximum daily mean DISCHARGE in the water year 49-69 for vehregan karstic catchments is between 1.001 and 1.76 with an average of 1.45. This relation for Golpaygan catchments for that period is between 1.01 and 2.01 with an average of 1.38. The main result of this study is that application of rational and empirical formulas for karstic catchments is unreliable.

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APA: Copy

GHAZAVI, G., & ESLAMIAN, S.. (2001). COMPARISON OF CALCAREOUS AND NON-CALCAREOUS CATCHMENTS IN VIEW OF SURFACE RUNOFF. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 7(4), 3-14. SID. https://sid.ir/paper/9466/en

Vancouver: Copy

GHAZAVI G., ESLAMIAN S.. COMPARISON OF CALCAREOUS AND NON-CALCAREOUS CATCHMENTS IN VIEW OF SURFACE RUNOFF. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2001;7(4):3-14. Available from: https://sid.ir/paper/9466/en

IEEE: Copy

G. GHAZAVI, and S. ESLAMIAN, “COMPARISON OF CALCAREOUS AND NON-CALCAREOUS CATCHMENTS IN VIEW OF SURFACE RUNOFF,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 7, no. 4, pp. 3–14, 2001, [Online]. Available: https://sid.ir/paper/9466/en

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