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المجلد |
مجلة جامعة الأزهر , سلسلة العلوم الطبيعية , ديسمبر 2017 , مجلد19, عدد1 |
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تاريخ النشر |
2017 |
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عنوان البحث |
The Influence of the Environment on the Distribution of Vegetation Communities in Rawdhat Salasil, Saudi Arabia |
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ملخص البحث |
Abstract:
Ecological and botanical survey were conducted on Rawdhat Salasil, Al-Qassim region, Saudi Arabia. The survey also includes the study of the plant communities in the study area by sampling the associated species in each community using the List Count Quadrant method to study the density, frequency, and plant cover. The present study has shown an account of the under-mentioned five different communities: Haloxylon persicum Bunge ex Boiss. community is a dominant perennial shrub with an importance value of 47.88%. 20 associated species represent this community. The chemical analysis of the soil of this plant habitat exhibits more alkalinity with low salinity. Tamarix nilotica Ehrenb. community is a perennial shrub with an importance value of 60.48%. 14 associated species represent this community. The chemical analysis of the soil of this plant habitat demonstrates richness in alkalis with high salinity. Salsola imbricate Forssk. community is a perennial herb with an importance value of 60.18%. 17 associated species represent this community. The chemical analysis of the soil of this plant habitat exhibits richness in alkalis with low salinity. Panicum turgidum Forssk. is a perennial herb with an importance value of 65.1%. 11 associated species represent this community. The chemical analysis of the soil of this plant habitat exhibits richness in alkalis and an absence of salinity. Pulicaria undulate L. community is predominantly an annual shrub with an importance value of 91.79%. 16 species represent this community. The chemical analysis of the soil of this plant habitat exhibits richness in alkalis and an absence of salinity.
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لغة البحث |
ENGLISH |
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الباحثون |
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ملف مرفق |
Suliman M S Alghanem.pdf |
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