火灾严重程度和土地使用遗留影响大西洋-地中海生物地理转型中的鸟类丰富性
Concepción García-Redondo1, Paula Fernández-Moure2, Miguel Cánibe3
1Área de Edafoloxía e Química Agrícola, Departamento de Bioloxía Vexetal e Ciencia do Solo, Facultade de Ciencias, Universidade de Vigo, Campus As Lagoas, s/n 32004, Ourense, Spain.
Environmental research
|June 29, 2023
概括
野火的严重程度和异质性显著影响欧洲南部山区的鸟类种群. 过去的土地使用对于了解火灾和火灾至关重要.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 遥感 遥感 遥感 遥感
背景情况:
- 由于土地被遗弃和灭火,南欧的山火制度正在发生变化.
- 了解火灾对生物多样性的影响对于有效的土地管理至关重要.
- 变化的火灾制度需要更新的生态评估.
研究的目的:
- 评估燃烧严重程度和异质性对南欧山脉鸟类丰富性的影响.
- 调查过去土地利用在塑造鸟类社区对火灾反应中的作用.
- 为消防管理策略提供数据驱动的见解.
主要方法:
- 在Baixa Limia-Serra do Xurés自然公园 (2010-2020) 内的206个地块进行了鸟类社区调查.
- 使用Sentinel 2和Landsat卫星图像量化烧伤严重程度和异质性.
- 通过基于卫星的土地覆盖分类来分析历史土地利用 (林业与农牧业).
主要成果:
- 71%的模拟鸟类物种显示与消防制度属性的相关性.
- 烧伤严重程度和时空火灾变化解释了39%的物种的本地丰富性.
- 过去的土地使用显著影响了火灾对鸟类群落的影响,60%的物种对火灾属性表现出二次反应.
结论:
- 遥感燃烧严重程度指标对于预测鸟类对火的反应至关重要.
- 整合消防制度数据和历史土地利用对于有效的生物多样性管理至关重要.
- 管理策略应考虑火灾,土地使用遗产和鸟类种群之间的复杂相互作用.
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