Bài viết với mục đích đánh giá sự thay đổi theo thời gian và không gian của thực phủ/sử dụng đất, cũng như tìm hiểu nguyên nhân và tác động của sự thay đổi này ở khu vực huyện Phú Tân của tỉnh Cà Mau trong gần 30 năm từ năm 1989 đến năm 2018. | 36 Journal of Mining and Earth Sciences Vol. 61 Issue 4 2020 36 - 45 Study on land use changes causes and impacts by remote sensing GIS and Delphi methods in the coastal area of Ca Mau province in 30 years Hanh Hong Tran 1 Anh Van Tran 1 Nghi Thanh Le 1 1 Faculty of Geomatics và Land Administration Hanoi University of Mining và Geology Vietnam ARTICLE INFO ABSTRACT Article history The main aim of this paper is to assess the spatio-temporal changes of Received 15th May 2020 land cover land use as well as their causes and impacts of the changes in Accepted 19th Aug. 2020 Phu Tan district of Ca Mau province in 30 years from 1989 to 2018. Multi- Available online 31st Aug. 2020 temporal remote sensing satellite images Landsat were collected and Keywords classified using supervised method. After validation and post Ca Mau classification they are mapped for analysing land use land cover change analysis in three decades. The accuracies of the land cover land use maps Delphi for three time intervals were all more than 80 . Delphi method consensus GIS analysis of expert opinion was applied in 2 rounds of survey with the Land cover land use changes consultancy of eight experts. Overall the results show that over the last 30 Remote sensing. years the areas of cultivated plants and water bodies significantly decreased. In contrast aquaculture ponds mangrove forest and residential areas substantially increased. These changes are driven by polical demographic socioeconomic and environmental factors. The major impacts include water quality bussiness and service and natural ecosystem. The results of this study will contribute to providing a panoramic view of the design of economic social and environmental policies to ensure sustainable development at the district level. Copyright 2020 Hanoi University of Mining and Geology. All rights reserved. _ Corresponding author E-mail hanhtranvub@ DOI 4 .04 Tạp chí Khoa học Kỹ thuật Mỏ - Địa
