INVESTIGATING EFFECT OF SOME AMENDMENTS ON SOIL CHEMICAL PROPERTIES IN A SALINE-SODIC SOIL

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KESHTKAR SH.; AYYOUBZADEH S.A.; FIROOZABADI B.

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Journal: Watershed Management Research Year:2010 | Volume:23 | Issue:2 (87) Page(s): 33-40

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Information Journal Paper

Title

INVESTIGATING EFFECT OF SOME AMENDMENTS ON SOIL CHEMICAL PROPERTIES IN A SALINE-SODIC SOIL

Author(s)

KESHTKAR SH. | AYYOUBZADEH S.A. | FIROOZABADI B. | Issue Writer Certificate

Keywords

DENSITY CURRENTQ2

EXPERIMENTAL STUDYQ3

TURBIDITY CURRENTQ3

VERTICAL VELOCITY AND CONCENTRATION DISTRIBUTIONQ3

Abstract

Study of TURBIDITY CURRENT hydrodynamics plays an important role in increasing the economical life of dams though reduction in sediment accumulation. In the present EXPERIMENTAL STUDY, the effect of entrance Froude number of TURBIDITY CURRENT in sub and super critical conditions (Fr=0.6-3.5) have been tested through effect of change related to opening height of entrance gate on vertical distribution of flow velocity and sediment concentration under two dimensional flow conditions. The experiments were run in a 12 m-long by 0.2 m-wide by 0.5 m-high channel. Vertical distribution velocity was measured by Acoustic Doppler Velocitimeter (ADV). In present study the profile of concentration were computed through ABS method. The results show that due to increasing in height of opening entrance gate, the value of velocity in profiles increase. Also height opening entrance gate with the value of concentration in vertical distribution have the non-direct correlation. Also the results show that the equivalent height of average velocity is about 0.8 times of the depth-averaged thickness of the current. Furthermore, the results show that the equivalent height of average concentration is to be about 0.35-0.5 times the depth-averaged thickness of the current.

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APA: Copy

KESHTKAR, SH., AYYOUBZADEH, S.A., & FIROOZABADI, B.. (2010). INVESTIGATING EFFECT OF SOME AMENDMENTS ON SOIL CHEMICAL PROPERTIES IN A SALINE-SODIC SOIL. WATERSHED MANAGEMENT RESEARCHES (PAJOUHESH-VA-SAZANDEGI), 23(2 (87)), 33-40. SID. https://sid.ir/paper/200615/en

Vancouver: Copy

KESHTKAR SH., AYYOUBZADEH S.A., FIROOZABADI B.. INVESTIGATING EFFECT OF SOME AMENDMENTS ON SOIL CHEMICAL PROPERTIES IN A SALINE-SODIC SOIL. WATERSHED MANAGEMENT RESEARCHES (PAJOUHESH-VA-SAZANDEGI)[Internet]. 2010;23(2 (87)):33-40. Available from: https://sid.ir/paper/200615/en

IEEE: Copy

SH. KESHTKAR, S.A. AYYOUBZADEH, and B. FIROOZABADI, “INVESTIGATING EFFECT OF SOME AMENDMENTS ON SOIL CHEMICAL PROPERTIES IN A SALINE-SODIC SOIL,” WATERSHED MANAGEMENT RESEARCHES (PAJOUHESH-VA-SAZANDEGI), vol. 23, no. 2 (87), pp. 33–40, 2010, [Online]. Available: https://sid.ir/paper/200615/en

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