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The Effect of Vegetation Cover on Microclimate in Dry land Ecosystem (Case Study: Sistan Plain)

    Authors

    • Farhad Zolfaghari 1
    • Hossein Azarnivand 2
    • Hassan Khosravi 3
    • Gholamreza Zehtabian 2
    • Shahram Khalighi Sigaroodi 4

    1 Assistant Professor, Higher educational complex of Saravan, I.R. Iran

    2 null

    3 university of Tehran

    4 University of Tehran

,

Document Type : Research Paper

10.22059/jrwm.2018.234109.1130
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Abstract

Any Changes in a dry land surface ecosystem will be affected by the climate near the ground or microclimate in the vertical plane. In recent decades' wetland drying cause to reduced vegetation significantly. Assessing Zabol synoptic station statistics shown an increased temperature of this place. It seems that there has a direct relationship between the changes in land surface vegetation and increases the ambient temperature. The situation ground roll on microclimate has been investigated to illustrate this relationship. In this study we compare and assessment temperatures at depth of 5cm and surface and height about 150 cm and heat fluxes and energy in three microsites with different vegetation cover. The distance between the experiment microsites is about 20 km, and the elevation difference is less than 10 meters. Microsite A with the total vegetation average about 65%, B microsites 20% and microsites C with 100% bare soil. It evaluated the equation ρc_p z_a (dT_air)/dt to investigate the role and effects of vegetation on the ground surface. Data analyzes showed temperatures in the period of study at the C microsites were higher than other microsites. It seems the lack of vegetation in microsites C has a major role in the higher air temperature. In micro site C At 00:30 Am (local time) the air temperature was 3.2ºC higher than microsite A and B. The results showed there is a direct relationship between the vegetation cover percentage and air temperature because of different soil heat fluxes and surface temperature.

Keywords

  • Microclimate
  • Surface Effect
  • Dryland
  • Vegetation Percentage
  • Sistan Delta
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Journal of Range and Watershed Managment
Volume 71, Issue 4
March 2019
Pages 901-914
Files
  • XML
  • PDF 1.52 M
History
  • Receive Date: 26 May 2017
  • Revise Date: 19 February 2019
  • Accept Date: 27 April 2018
  • First Publish Date: 20 February 2019
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How to cite
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  • Article View: 684
  • PDF Download: 842

APA

Zolfaghari, F., Azarnivand, H., Khosravi, H., Zehtabian, G., & Khalighi Sigaroodi, S. (2019). The Effect of Vegetation Cover on Microclimate in Dry land Ecosystem (Case Study: Sistan Plain). Journal of Range and Watershed Managment, 71(4), 901-914. doi: 10.22059/jrwm.2018.234109.1130

MLA

Farhad Zolfaghari; Hossein Azarnivand; Hassan Khosravi; Gholamreza Zehtabian; Shahram Khalighi Sigaroodi. "The Effect of Vegetation Cover on Microclimate in Dry land Ecosystem (Case Study: Sistan Plain)". Journal of Range and Watershed Managment, 71, 4, 2019, 901-914. doi: 10.22059/jrwm.2018.234109.1130

HARVARD

Zolfaghari, F., Azarnivand, H., Khosravi, H., Zehtabian, G., Khalighi Sigaroodi, S. (2019). 'The Effect of Vegetation Cover on Microclimate in Dry land Ecosystem (Case Study: Sistan Plain)', Journal of Range and Watershed Managment, 71(4), pp. 901-914. doi: 10.22059/jrwm.2018.234109.1130

VANCOUVER

Zolfaghari, F., Azarnivand, H., Khosravi, H., Zehtabian, G., Khalighi Sigaroodi, S. The Effect of Vegetation Cover on Microclimate in Dry land Ecosystem (Case Study: Sistan Plain). Journal of Range and Watershed Managment, 2019; 71(4): 901-914. doi: 10.22059/jrwm.2018.234109.1130

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