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城市热岛对登革热发病率的影响:使用热和高分辨率光学图像的遥感方法

Swetha Sureshkumar1, Sulochana Shekhar2

  • 1Department of Geography, Central University of Tamil Nadu, Thiruvarur, 610005, Tamil Nadu, India.

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城市热岛 (UHI) 显著影响登革热的传播. 这项研究发现登革热的热点在温和的地区, 而不是极端热带, 这凸显了城市规划的必要性,

关键词:
登革热土地表面的温度土地使用和土地覆盖城市热岛

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科学领域:

  • 环境科学
  • 公共卫生
  • 流行病学

背景情况:

  • 登革热是全球主要的健康威胁, 每年有数百万人感染.
  • 在热带和亚热带城市环境中繁荣.
  • 城市热岛效应加剧了蚊子繁殖和疾病传播的条件.

研究的目的:

  • 研究城市热岛和登革热发病率之间的关系.
  • 分析土地表面温度和土地使用对登革热传播模式的影响.
  • 为控制登革热提供有针对性的公共卫生干预和城市规划策略.

主要方法:

  • 使用遥感来获得陆地表面温度 (LST) 数据.
  • 对登革热发病率模式的流行病学数据 (2017-2023) 进行分析.
  • 使用热点检测和统计分析,包括土地使用/土地覆盖率评估.

主要成果:

  • 在UHI,建筑区和登革热点之间发现了强烈的正相关性.
  • 登革热的发病率在热量适度的地区达到峰值,极端温度 (> 48°C) 可能会抑制蚊子的生存.
  • 建筑区域与登革热病例有显著的正相关性 (ρ = 0.822),而植被和水体则呈负相关性.

结论:

  • 城市热岛严重影响登革热发病率, 特定的温度范围影响蚊子种群.
  • 城市规划必须考虑UHI的影响,优先考虑绿地和水资源管理, 以有效控制登革热媒介.
  • 必须采取有针对性的干预措施,平衡城市发展与减少蚊子传播疾病的公共卫生战略.