Student Research Reports
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Physical parameters affecting morning glory density
Organization(s):Princess Chulabhorn Science High School Trang
Country:Thailand
Student(s):Pimlapat Sontimuang and Suchanan Phanwongrat
Grade Level:Middle School (grades 6-8, ages 11-14)
GLOBE Educator(s):Patchara Pongmanawut
Contributors:Dr. Anantanit Chumsri from Rajamangala University of Technology Srivijaya Trang campus
Assoc. Prof. Dr. Mullica Jaroensutasinee and Assoc. Prof. Dr. Krisanadej Jaroensutasinee from Walailak University
The Institute for the Promotion of Teaching Science and Technology (IPST)
Report Type(s):International Virtual Science Symposium Report, Standard Research Report
Protocols:Air Temperature, Relative Humidity, Surface Temperature, Soil Characterization, Soil Fertility, Soil Moisture - Gravimetric, Soil pH, Soil Temperature
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Language(s):English
Date Submitted:03/06/2024
The objective of this research is to investigate the physical factors influencing the density of sea morning glory in the Ratchamongkol beach area, Trang province. The study area is divided into three areas: an area devoid of sea morning glory, an area with 25% sea morning glory density, and an area with 75% sea morning glory density, each further subdivided into 6 study points. Soil sampling, measurement of soil and subsoil temperatures, and collection of sea kale roots were conducted. The study revealed that soil and subsoil temperatures were higher than air temperature, with no significant difference in temperature between subsoil and air. The soil in all areas consisted of sandy soil with consistent pH levels, attributed to being beach soil. Analysis of soil nutrient content indicated that the area with 75% sea morning glory density had higher levels of organic matter due to greater accumulation of organic debris, correlating with nutrient levels such as nitrogen, phosphorus, and potassium, which were consistent with the weight of sea morning glory roots. The area with 75% sea morning glory density exhibited significantly higher root mass and the lowest shoreline erosion due to the root structure preventing sand loss into the sea, effectively mitigating beach erosion.