Land cover change detection in northwestern Vietnam using Landsat images and Google Earth Engine

• Autorzy: Nguyen Luong B.

Identyfikatory

DOI

10.24425/jwld.2020.134209

• Języki publikacji: EN

Abstrakty

EN

Recently, Google Earth Engine (GEE) provides a new way to effectively classify land cover utilizing available in-built classifiers. However, there have a few studies on the applications of the GEE so far. Therefore, the goal of this study is to explore the capacity of the GEE platform in terms of land cover classification in Dien Bien Province of Vietnam. Land cover classification in the year of 2003 and 2010 were performed using multiple-temporal Landsat images. Two algorithms – GMO Max Entropy and Classification and Regression Tree (CART) integrated into the Google Earth Engine (GEE) platform – were applied for this classification. The results indicated that the CART algorithm performed better in terms of mapping land use. The overall accuracy of this algorithm in the year of 2003 and 2010 were 80.0% and 81.6%, respectively. Significant changes between 2003 and 2010 were found as an increase in barren land and a reduction in forest land. This is likely due to the slash-and-burn agricultural practice of ethnic minorities in the province. Barren land seems to occur more at locations near water sources, reflecting the local people’s unsuitable farming practice. This study may provide use-ful information in land cover change in Dien Bien Province, as well as analysis mechanisms of this change, supporting environmental and natural resource management for the local authorities.

Słowa kluczowe

EN

cloud-based platform; deforestation; land cover classification; satellite images

• Wydawca: Wydawnictwo ITP
• Czasopismo: Journal of Water and Land Development
• Rocznik: 2020
• Tom: no. 46
• Strony: 162--169
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Nguyen Luong B.

• Thuyloi University, Faculty of Water Resource Engineering, 175 Tay Son, Dong Da, Hanoi 100000, Vietnam

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