Application of remote sensing and Google Earth Engine to create an agricultural land use status quo mapping in 2023 in Hoa Vang district, Da Nang city
Vol. 133 No. 3B (2024), Original Article
Vol. 133 No. 3B (2024)

Application of remote sensing and Google Earth Engine to create an agricultural land use status quo mapping in 2023 in Hoa Vang district, Da Nang city

Original Article
https://doi.org/10.26459/hueunijard.v133i3B.7443
Published 2024-06-28
Le Ngoc Hanh
University of Education, Hue University, 34 Le Loi St., Hue, Vietnam
Nguyen Hoang Son
University of Education, Hue University, 34 Le Loi St., Hue, Vietnam
Le Phuc Chi Lang
University of Education, Hue University, 34 Le Loi St., Hue, Vietnam
PDF (Vietnamese)

Keywords

map
Hoa Vang
agriculture
landuse
remote sensing bản đồ
Hòa Vang
nông nghiệp
sử dụng đất
viễn thám

Abstract

Hoa Vang is an agricultural district of Da Nang City. Therefore, the management and utilization of agricultural land are among its essential tasks. This study aims to utilize Sentinel 2 imagery to create a current status of agricultural land use map in Hoa Vang District in 2023 by using Google Earth Engine. The research employs the Random Forest method for image prediction, assesses reliability using the Kappa index and the overall accuracy. The calculated Kappa index achieves a value of 0.85, and the overall accuracy is 0.87. These results demonstrate that the agricultural land use map established through Sentinel 2 imagery is highly reliable. The study reveals that agricultural land covers an area of 61,204 hectares, accounting for 83.5% of the district's natural area. Forestry land has the most significant area, with 52,438 hectares, representing 71.5% of the district's total area. Rice cultivation land (3,484.1 hectares) and perennial crop cultivation land (3,348 hectares) have equivalent areas, accounting for approximately 9.5%. Other annual crop cultivation land has the smallest area within the agricultural land category, with 1,933.9 hectares, representing 2.6% of the district's area. The research findings serve as reference material for managing and utilizing agricultural land in Hoa Vang District, Da Nang City.

https://doi.org/10.26459/hueunijard.v133i3B.7443
PDF (Vietnamese)

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