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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(3): 188-194
DOI: https://doi.org/10.20546/ijcmas.2019.803.026


Vegetation Cover in Rudat Norah and Morphmetric Analysis of Wadi Al-Atsh Watershed, Northwester Riyadh Region
Rashid H.R. Al-Dosari1*, A.M. El-Sheikh Al-Ansari1, F.H. Al-Juaidi2 and W.A. Al-Taisan3
1Department of Botany and Microbiology, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
2Department of Geography, College of Art, King Saud University, Riyadh, Saudi Arabia
3Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University,
Saudi Arabia
*Corresponding author
Abstract:

Vegetation Cover in Rawdat Norah was estimated to be 0.635 Km2 or 16.2% of the total area of the Rawdat which is 3.924 km2. The main dominant vegetation is Rhazya strica. Some morphometric properties and the characteristics of the watercourse system affecting the capacity of the Wadi Al-Atsh watershed to transform rainwater into surface runoff water had been determined. Accordingly, the drainage area of Wadi Al-Atsh has been calculated and found to be 13899.7 km2, where the watershed length reaches 170.9 km, and the average width of Wadi Al-Atash watershed also reached 81.3 km. The form factor ratio was found to be less than 1.277 indicating that the shape of the watershed is not circular in shape, the shape of Wadi Al-Atsh watershed is located within the relatively rectangular watersheds where its elongation reaches 0.78. This study also proven that the watercourse network system is similar to the dendritic drainage system with a total of 1759 watercourses, which confirms the ability of the water watershed to turn the rainwater into surface running water which may end with devastating foods. This study indicated that management of rangeland must incorporate to conserve vegetation and biodiversity of ephemeral streams in hyper-arid and arid regions.


Keywords: Morphometric, Wadi Al-Atsh, Watershed, Drainage, Saudi Arabia
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How to cite this article:

Rashid H.R. Al-Dosari, A.M. El-Sheikh Al-Ansari, F.H. Al-Juaidi and Al-Taisan, W.A. 2019. Vegetation Cover in Rudat Norah and Morphmetric Analysis of Wadi Al-Atsh Watershed, Northwester Riyadh Region.Int.J.Curr.Microbiol.App.Sci. 8(3): 188-194. doi: https://doi.org/10.20546/ijcmas.2019.803.026