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The Effects of Soil and Air on the Density of Black-Stemmed Fern in Srinakharin Park

Organization(s):Wichienmatu
Country:Thailand
Student(s):Mr.Wachirawit Kaoian Mr.Nich Sunthornnon Mr.Subphawit Sattayanon
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Member(s):Jiraporn Sirirat
Contributors:Ms. Naeriya Tonkrongchan
Report Type(s):Virtual Science Symposium Report
Protocols:Relative Humidity, Air Temperature
Presentation Poster: View Document
Language(s):English
Date Submitted:2026-01-30
This project focuses on studying the effects of soil and air quality on the density of black-stemmed fern in Somdej Phra Srinakarin Park, Trang Province. The process began with site planning and defining the study area, selecting four randomly chosen points, counting the number of plants in the quadrat, measuring soil temperature at a depth of 10 cm, measuring soil moisture at a depth of 14 cm, measuring pH, measuring N, P, and K nutrient levels, observing soil structure, measuring air temperature, and measuring relative humidity
Ferns are considered another interesting group of plants. Because in addition to being beautiful, it also plays an important role in the ecosystem, such as helping to maintain soil moisture, being a habitat for small animals, and some species can also indicate the environmental conditions of the area. Studies on soil quality affecting the density of black-stemmed ferns Therefore, it not only helps us understand nature better, but it is also useful information for the conservation and management of natural resources in the future of Somdet Phra Srinakarin Park Trang Province to be an important green space for the community and a source of recreation for the people.Within the area, there is a natural variety suitable for the density of ferns. Therefore, the purpose of this study is to study the soil and air quality that affect the density of black stemmed ferns in Somdet Phra Srinakarin Park, Trang Province. It is hoped that this study will be the basis for further use in the field of learning and conservation. Soil and air quality measured in Somdej Phra Srinakarin Park Trang Province Average pH 5.3 Average NPK value N 15 units, P 15 units K 13 units, average soil temperature 29-33°C,average relative humidity 56%-59%, average air temperature 31-32°C, which is the condition that black-stemmed ferns can grow in Somdet Phra Srinakarin Park, Trang Province and soil moisture of the black-stemmed fern with very dense, medium and low density. 33%, 27% and 20% that makes it possible to conclude soil moisture is related to the density of the black-stemmed fern


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