湖泊收缩引起的陆地生态环境质量退化,在一个半干旱的湖泊盆地
Nannan Cheng1,2, Tengteng Yang3, Tingfeng Wu4,5
1Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.
Environmental science and pollution research international
|November 10, 2023
概括
半干旱地区的戴海湖已经缩小了70%,降低了陆地生态质量. 增加的用水量和将湿地转化为农田是关键的驱动因素,突出了管理人类对湖泊盆地的影响的必要性.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 遥感 遥感 遥感 遥感
背景情况:
- 半干旱地区的湖泊缩给环境带来了挑战.
- 量化对流域陆地生态质量的影响至关重要,但研究不足.
研究的目的:
- 评估1986年至2019年大海湖收缩对其退水区域陆地生态环境质量的影响.
- 确定湖泊缩和随后的生态变化的主要驱动因素.
主要方法:
- 远程传感图像分析用于生态指数计算.
- 用于空间分析的数字海拔建模.
- 统计分析以确定趋势和相关性.
主要成果:
- 大海湖面积从1961年到2019年减少了70.32%.
- 陆地生态质量从良好降低到中等,远程传感生态指数显著下降.
- 退缩地区的湿地在很大程度上被转化为农田,降低了生态质量.
结论:
- 人类增加的用水量是大海湖缩的主要原因之一.
- 土地利用变化,特别是湿地转化为农田,显著降低了生态质量.
- 缓解人类活动对于在半干旱地区内的湖泊盆地保持生态质量至关重要.
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