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" The Impact of Climate Change on Vegetation Cover in Khasab Wilayah: A Field Study and a Time Comparison"

Country:Oman
Student(s):1 - Muhammad bin Suhaib bin Muhammad Zaid Al-Shehhi 2- Hamad bin Abdulrahim bin Abdullah Ishaq Al-Shehhi
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Member(s):Mostafa Ahmad
Contributors:
Report Type(s):Virtual Science Symposium Report
Protocols:Soil pH, Biometry (including Tree Height), Green-Up / Green-Down, Alkalinity, Conductivity, Salinity, Water Temperature, Water Transparency
Presentation Video: View Video
Presentation Poster: View Document
Language(s):English
Date Submitted:2026-01-29
Abstract: The purpose of this research was to study the impact of climate change on vegetation cover in Khasab Wilayah by answering two main questions:(1) How did climate change affect plants grown in one of Khasab farms? (2) How did it affect the percentage of vegetation cover in the Khalidiya area of Khasab Wilayah? The study relied on the application of the GLOBE (Land-Water-Soil) protocols in the market railway farm and compared the measurements of March 2018 with the latest measurements in January 2026, in addition to using data and reports from environmental authorities to compare the natural vegetation cover in Khalidiya between 2015 and 2023. The results on the farm showed a clear decrease in the indicators of planted cover, as the number of trees decreased from 46 to 30 (a decrease ≈ 34.78%), and the green grass decreased from 32 to 10 (a decrease ≈ 68.75%), with an increase in the "negative" indicators for trees and weeds. The measurements also showed a high pH of irrigation water (8.85), a conductivity of 1320 μS, and a rise in soil pH to 8.53 (high alkalinity), which explains the weak growth of palms and the decline of some trees. In Khalidiya, vegetation cover decreased from 0.7% in 2015 to 0.6% in 2023, linked to climatic factors (higher temperature/less erratic rainfall) and human factors (overgrazing, logging, vehicle movement) with the growth of competing plants such as "Elite Eat". The study recommends managing water resources, regulating grazing, site fencing and enforcing regulations, conducting an environmental study of the "Elite" plant and determining its impact, in addition to measures to mitigate the impact of high temperatures, and continuing periodic monitoring and uploading data on the



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