越南南中南部宁土安省的沿海环境变化
Bijeesh Kozhikkodan Veettil1,2, Siham Acharki3, Vikram Puri4,5
1Laboratory of Ecology and Environmental Management, Science and Technology Advanced Institute, Van Lang University, Ho Chi Minh City, Vietnam.
PloS one
|February 5, 2025
概括
越南 越南 越南 越南
科学领域:
- 沿海生态 沿海生态
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
背景情况:
- 越南的海岸面临来自自然灾害和人类活动的生态和社会经济挑战.
- 红树林是重要的沿海生态系统,在越南各地经历了显著的枯竭.
- 越南对减缓气候变化的承诺在第26届缔约方会议 (COP26) 上得到了认可.
研究的目的:
- 用卫星数据调查越南的关键沿海环境变化.
- 分析海岸线动态,干旱,土壤盐度和红树林覆盖的趋势.
- 评估水产养殖和盐养殖地区的时空变化.
主要方法:
- 卫星数据采集和地理空间分析.
- 量化红树林砍伐和重新造林的量化.
- 对土壤盐度和土地利用变化的趋势分析.
主要成果:
- 从1989年到2023年,红树林面积下降了58%,最初的急剧下降随后逐渐恢复.
- 尼敦海岸的土壤盐度趋势不断增加,在2001年有一个显著的例外.
- 水产养殖和盐养殖区的大幅扩张,改变了沿海土地使用模式.
结论:
- 迫切需要综合沿海区管理,以应对环境退化.
- 加强生态系统的弹性对于越南的可持续沿海发展至关重要.
- 进一步的研究应该探索社会经济影响,并评估恢复策略.
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