Đánh giá mức độ tổn thương do biến đổi khí hậu của đô thị thành phố Đông Hà, tỉnh Quảng Trị

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Văn Tiệp Nguyễn, Đỗ Minh Phượng Trương

Ngôn ngữ: vie

Ký hiệu phân loại: 304.25 Climatic and weather factors

Thông tin xuất bản: Khoa học và Công nghệ Nông nghiệp - Trường Đại học Nông lâm, Đại học Huế, 2022

Mô tả vật lý: 2901-2910

Bộ sưu tập: Metadata

ID: 498702

Thêm vào giỏ

This paper aimed to present the method and results of assessing the vulnerability due to climate change of the urban areas in Dong Ha city based on a set of 25 criteria of 3 indicator groups: exposure (E), sensitivity (S) and adaptive capacity AC. The primary data were standardized and weighted to rank the results for vulnerability assessment. The research result showed that the vulnerability value of urban areas in Dong Ha city ranged from -0.0422 to 0.3226, divided into 3 level groups: (i) The group with high vulnerability made up 33.33%, including ward 4, Dong Thanh ward, Dong Luong ward located on the edge of Dong Ha city center, these areas had strong exposure and sensitivity factors while the adaptive capacity was incompetent. (ii) The medium level of vulnerability group constituted 44.44%, including ward 3, ward 5, Dong Le ward, and Dong Giang ward. These areas exprienced moderate exposure and sensitivity factors, however, their adaptive capacity to cope with natural disasters was modest. (iii) The mild vulnerability group comprised 22.22%, including ward 1 and ward 2. These wards registered insignificant sensitivity and exposure factors while the adaptive capacity is efficientTrình bày phương pháp và kết quả của việc đánh giá mức độ tổn thương do sự biến đổi khí hậu của đô thị thành phố Đông Hà dựa trên bộ chỉ thị gồm 25 tiêu chí của 3 hợp phần là phơi nhiễm (E), nhạy cảm (S) và khả năng thích ứng (AC). Các dữ liệu thô được chuẩn hóa và tính toán trọng số nhằm sắp xếp phân hạng kết quả dựa theo các tiêu chí để đánh giá mức độ tổn thương. Kết quả nghiên cứu cho thấy, đô thị thành phố Đông Hà có giá trị tổn thương dao động trong khoảng từ - 0,0422 đến 0,3226, được chia thành 3 nhóm mức độ gồm: (i) Nhóm mức độ tổn thương cao chiếm 33,33% gồm phường 4, phường Đông Thanh, phường Đông Lương. Đây là các phường ven trung tâm thành phố Đông Hà, có yếu tố phơi nhiễm và nhạy cảm cao trong khi năng lực thích ứng thấp
(ii) Nhóm mức độ tổn thương trung bình chiếm 44,44% gồm phường 3, phường 5, phường Đông Lễ, phường Đông Giang. Đây là các phường có yếu tố nhạy cảm và phơi nhiễm ở mức vừa phải nhưng có năng lực thích ứng khi xảy ra các thiên tai thấp
(iii) Nhóm mức độ tổn thương thấp chiếm 22,22% gồm phường 1 và phường 2. Đây là các khu vực có các yếu tố nhạy cảm và phơi nhiễm ở mức thấp trong khi có năng lực thích ứng tốt.

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