ASSESSMENT ON SOME OF SANDY SOIL PROPERTIES IN PHU VANG DISTRICT, THUA THIEN HUE PROVINCE
Vol. 133 No. 3D (2024), Original Article
Vol. 133 No. 3D (2024)

ASSESSMENT ON SOME OF SANDY SOIL PROPERTIES IN PHU VANG DISTRICT, THUA THIEN HUE PROVINCE

Original Article
https://doi.org/10.26459/hueunijard.v133i3D.7616
Published 2024-12-31
Pham Gia Tung
International School – Hue University, 1 Dien Bien Phu St., Hue, Vietnam
https://orcid.org/0000-0001-6377-2639
Nguyen Hoang Khanh Linh
International School – Hue University, 1 Dien Bien Phu St., Hue, Vietnam
Nguyen Thu Hang
International School – Hue University, 1 Dien Bien Phu St., Hue, Vietnam
Nguyen Quang Tan
International School – Hue University, 1 Dien Bien Phu St., Hue, Vietnam
Tran Thi Minh Chau
University of Agriculture and Forestry, Hue University, 102 Phung Hung St., Hue, Vietnam
Nguyen Trung Hai
University of Agriculture and Forestry, Hue University, 102 Phung Hung St., Hue, Vietnam
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Keywords

sandy soil
lagoon
soil properties
Phu Vang district

Abstract

This study was conducted in Phu Da town and Vinh Xuan commune, Phu Vang district, Thua Thien Hue province, with the aim of evaluating and mapping soil properties, including pHKCl, total nitrogen, electrical conductivity, total phosphorus, total potassium, and soil organic carbon. The results showed that most soil properties in the study area were low; the soil was poor in organic carbon and acidic, with a notable decrease in organic carbon content compared to previous studies (0.69% compared to 0.86%). Three out of six soil quality indicators—soil acidity, total nitrogen, and total phosphorus—showed statistically significant differences between land use types. This difference was observed between the two-season rice land use type and all other land use types. This study employs the Ordinary Kriging interpolation method for soil quality indicators mapping. However, the results indicate that the map's accuracy is relatively low. This finding suggests that conventional interpolation methods, which rely on distance and sample residuals, may not be appropriate for soil quality indicators mapping. Consequently, there is a need to explore and apply alternative methods to enhance mapping accuracy.

https://doi.org/10.26459/hueunijard.v133i3D.7616
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