人为干扰驱动漂浮海洋垃圾在三个沿海接口的驱动
Jianing Luo1, Bo Luan1, Shiqi Xie1
1Green Infrastructure Institute, Peking University Shenzhen Institution, Shenzhen 518057, China.
Marine pollution bulletin
|April 19, 2025
概括
沿海地区附近的人类活动显著增加了浮动海洋垃圾 (FML). 兴趣点的密度,特别是旅游业,与FML有很强的相关性,指导有效的沿海管理策略.
科学领域:
- 环境科学 环境科学
- 海洋生物学 海洋生物学
- 遥感 遥感 遥感 遥感
背景情况:
- 浮动海洋垃圾 (FML) 对海洋生态系统和生物多样性构成持续威胁.
- 沿海流域接口是FML的关键来源,需要对人类造成的影响进行量化管理.
- 了解陆地人类活动和FML之间的关系对于有效的缓解至关重要.
研究的目的:
- 评估陆地人类干扰对沿海地区浮动海洋垃圾 (FML) 的影响.
- 确定影响FML密度的关键人为因素和高压区域.
- 为可持续的沿海规划和管理提供证据.
主要方法:
- 全年每月监测FML结合陆地人类干扰的遥感.
- 在三个不同的区域进行分析:流域 (WS),流域-沿海区交叉点 (IWCZ) 和流域-沿海缓冲区交叉点 (IWBZ).
- 采用单变量 (线性回归,相关性) 和多变量 (规范对应分析 - CCA) 的统计方法.
主要成果:
- IWBZ表现出最高的人类活动压力,具有显著升高的兴趣点密度 (POID),无透表面比率 (ISR) 和人口密度 (POPD).
- 人类干扰在IWBZ中与FML的相关性最强 (相关系数=0.89),在IWCZ和WS中没有显著的相关性.
- POID是影响FML密度的主导因素 (53.03%71.15%的加权重要性),超过ISR和POPD. 与旅游相关的POI与所有区域的FML相关.
结论:
- 该研究强调IWBZ是FML管理的关键区域,因为人类活动很高.
- 兴趣点的密度,特别是旅游业,是沿海地区FML的关键驱动因素.
- 这些发现支持有针对性的沿海规划和综合管理战略,以减少海洋垃圾.
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