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Water retention function of rangeland ecosystems, economic valuation of change in rangeland conditions (Case Study: Arnaveh Basin, North Khorasan Province)

    Authors

    • Emad Zakeri
    • Hamidreza karimzadeh 1
    • Seyed Alireza Mousavi 2
    • mohammad ghorbani 3

    1 Faculty of Natural Resources,Department of Rangeland and Watershed Management, Isfahan University of Tecnology

    2 Faculty of Natural Resources, Isfahan /University of Technology /]Isfahan/Iran

    3 Department of Agricultural Economics, Faculty of Agriculture, Ferdowsi University of Mashhad

,

Document Type : Research Paper

10.22059/jrwm.2020.255810.1251
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Abstract

Rangelands provide a diverse array of vital services that pertain to human life. But market failure to consider the value of these ecosystem services has disturbed provision of many ecosystem services. In this study the economic value of water conservation functions by Arnaveh basin located in northwestern Iran was estimated. Rainfall-runoff simulation was carried out by using Curve Number (CN) method. Also by means of Replacement Cost method the value of the hydrological services were quantified. The role of vegetation cover in water conservation was estimated by comparing the surface runoff under current condition and uncovered soil conditions. Moreover the role of rangelands on water retention and surface runoff reduction by devising three more hypothetical scenarios and then the effects of land use changes associated with these scenarios on rainfall-runoff rate of the region were compared. Results showed that the role of rangelands vegetation cover in water conservation and surface runoff reduction was 7.19×106 m3, with the economic value of 123×109 IRR. Also, the results of a comparing between 3 hypothetical scenarios and current conditions showed that, under the case of scenario one which assumes that the entire of rangelands area is becoming to rain-fed farming, total outflow would be in the maximum amount and the most negative effects will accrue. Also the scenarios of improvement of vegetation cover to 25-50 percent has the most positive effects (1.95×106 m3 yr-1 decrease) on water retention. The results of this study could help decision-makers in selecting appropriate and economically feasible development strategies.

Keywords

  • Ecosystem services
  • economic valuation
  • surface runoff
  • replacement cost method
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Journal of Range and Watershed Managment
Volume 73, Issue 1
June 2020
Pages 89-103
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  • PDF 1.86 M
History
  • Receive Date: 15 April 2018
  • Revise Date: 06 May 2020
  • Accept Date: 07 May 2020
  • First Publish Date: 21 May 2020
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Statistics
  • Article View: 258
  • PDF Download: 156

APA

Zakeri, E., karimzadeh, H., Mousavi, S. A., & ghorbani, M. (2020). Water retention function of rangeland ecosystems, economic valuation of change in rangeland conditions (Case Study: Arnaveh Basin, North Khorasan Province). Journal of Range and Watershed Managment, 73(1), 89-103. doi: 10.22059/jrwm.2020.255810.1251

MLA

Emad Zakeri; Hamidreza karimzadeh; Seyed Alireza Mousavi; mohammad ghorbani. "Water retention function of rangeland ecosystems, economic valuation of change in rangeland conditions (Case Study: Arnaveh Basin, North Khorasan Province)". Journal of Range and Watershed Managment, 73, 1, 2020, 89-103. doi: 10.22059/jrwm.2020.255810.1251

HARVARD

Zakeri, E., karimzadeh, H., Mousavi, S. A., ghorbani, M. (2020). 'Water retention function of rangeland ecosystems, economic valuation of change in rangeland conditions (Case Study: Arnaveh Basin, North Khorasan Province)', Journal of Range and Watershed Managment, 73(1), pp. 89-103. doi: 10.22059/jrwm.2020.255810.1251

VANCOUVER

Zakeri, E., karimzadeh, H., Mousavi, S. A., ghorbani, M. Water retention function of rangeland ecosystems, economic valuation of change in rangeland conditions (Case Study: Arnaveh Basin, North Khorasan Province). Journal of Range and Watershed Managment, 2020; 73(1): 89-103. doi: 10.22059/jrwm.2020.255810.1251

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