TIẾP CẬN HỒI QUY KHÔNG GIAN ĐÁNH GIÁ BIẾN ĐỘNG BỀ MẶT KHÔNG THẤM TẠI THÀNH PHỐ CẦN THƠ GIAI ĐOẠN 2000-2020

Lê Trần Oanh Kiều, Nguyễn Phi Hùng, Trương Hoàng Trương, Trần Văn Thương, Huỳnh Phẩm Dũng Phát

Tóm tắt


 

Nghiên cứu nhằm đánh giá biến động không gian và thời gian bề mặt không thấm tại thành phố Cần Thơ sử dụng ảnh Landsat đa thời gian, được tải từ công nghệ điện toán Google Earth Engine và tiếp cận hồi quy không gian. Chỉ số chuẩn hóa khác biệt xây dựng và phương pháp bình phương tối thiểu đã được sử dụng để đánh giá đánh giá biến động của quá trình mở rộng bề mặt không thấm trong giai đoạn 2000-2020. Kết quả nghiên cứu chỉ ra rằng, mật độ xây dựng tập trung chủ yếu ở khu vực ven sông Hậu và mở rộng sang các địa phương khác theo hướng Tây Bắc. Xét về xu thế mở rộng của diện tích xây dựng trong suốt giai đoạn nghiên cứu, diện tích bề mặt không thấm có xu thế gia tăng 485ha, 399ha, và 376ha tại các quận Ninh Kiều, Bình Thủy và Thốt Nốt tương ứng. Kết quả nhận được từ nghiên cứu này có thể làm tài liệu tham khảo để chính quyền địa phương đề xuất chiến lược phát triển thành phố thông minh trong bối cảnh công nghệ số.

 

 


Từ khóa


bề mặt không thấm; Landsat; NDBI; đô thị hóa; viễn thám

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