EVALUATION OF LAND USE CHANGE AND ITS IMPACT ON THE HYDROLOGICAL PROCESS IN THE GHAZAGHLI WATERSHED, GOLESTAN PROVINCE

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SALMANI H.; MOHSENI SARAVI M.; ROUHANI H.; SALAJEGHEH A.

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Journal: JOURNAL OF WATERSHED MANAGEMENT RESEARCH Year:2013 | Volume:3 | Issue:6 Page(s): 43-60

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Title

EVALUATION OF LAND USE CHANGE AND ITS IMPACT ON THE HYDROLOGICAL PROCESS IN THE GHAZAGHLI WATERSHED, GOLESTAN PROVINCE

Author(s)

SALMANI H. | MOHSENI SARAVI M. | ROUHANI H. | SALAJEGHEH A. | Issue Writer Certificate

Keywords

GHAZAGHLI WATERSHEDQ2

RUNOFFQ2

LAND USEQ2

SWAT MODELQ1

SUFI2Q2

Abstract

Land use Change influences the components of the hydrological cycle which result in increasing or decreasing the amount of RUNOFF. The purpose of this study is the evaluation of hydrological respond to LAND USE change in Qhazaghli basin. After changing LAND USE in GIS environment, four management scenarios in both positive and negative trends were introduced into the model and the model output of each model extraction and simulation results were compared with observed values. Simulations were done based on the monthly and semi-distributed using SWAT MODEL and SUFI2 program. After running the model, Qhazaghli basin was divided in 37 sub basins and 278 hydrological response units (HRU). After model calibration, the RUNOFF model simulated with a correlation coefficient (R2) of 0.85 and the Nash efficiency coefficient -Sutcliff (ENS) of 0.86 and the root mean square error (RMSE) of 7.67. The coefficients for the validation period, respectively were obtained 0.86, 0.82 and 9.05.The LAND USE analysis showed that the basin LAND USE improvement, reduces the amount of RUNOFF by increasing infiltration, the deep and shallow aquifers percolation and by increasing evapotranspiration .in other hand the land degradation in the basin increased RUNOFF but the infiltration values, the percolation of deep and shallow aquifers and the evapotranspiration significantly reduced. Protection and improvement of Current basin LAND USE, is one of the basic strategies for managing surface RUNOFF in the case study region.

Cites

INVESTIGATION ON THE CAUSES OF REDUCTION OF FLOW IN THE MAJOR RIVERS OF THE SOUTHEAST OF URMIA LAKE

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APA: Copy

SALMANI, H., MOHSENI SARAVI, M., ROUHANI, H., & SALAJEGHEH, A.. (2013). EVALUATION OF LAND USE CHANGE AND ITS IMPACT ON THE HYDROLOGICAL PROCESS IN THE GHAZAGHLI WATERSHED, GOLESTAN PROVINCE. JOURNAL OF WATERSHED MANAGEMENT RESEARCH, 3(6), 43-60. SID. https://sid.ir/paper/230348/en

Vancouver: Copy

SALMANI H., MOHSENI SARAVI M., ROUHANI H., SALAJEGHEH A.. EVALUATION OF LAND USE CHANGE AND ITS IMPACT ON THE HYDROLOGICAL PROCESS IN THE GHAZAGHLI WATERSHED, GOLESTAN PROVINCE. JOURNAL OF WATERSHED MANAGEMENT RESEARCH[Internet]. 2013;3(6):43-60. Available from: https://sid.ir/paper/230348/en

IEEE: Copy

H. SALMANI, M. MOHSENI SARAVI, H. ROUHANI, and A. SALAJEGHEH, “EVALUATION OF LAND USE CHANGE AND ITS IMPACT ON THE HYDROLOGICAL PROCESS IN THE GHAZAGHLI WATERSHED, GOLESTAN PROVINCE,” JOURNAL OF WATERSHED MANAGEMENT RESEARCH, vol. 3, no. 6, pp. 43–60, 2013, [Online]. Available: https://sid.ir/paper/230348/en

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