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土地使用动态及其对河流流域水文和水质的影响:综合分析和未来情景
Natnael Shiferaw1, Lulit Habte2, Mirza Waleed3
1Australian Rivers Institute, School of Environment & Science, Griffith University, Nathan, QLD, 4111, Australia. natnael.legesse@griffithuni.edu.au.
Environmental science and pollution research international
|January 25, 2025
概括
土地使用变化对水资源产生重大影响. 保护城市绿地,森林和湿地对于可持续的流域管理和弹性生态系统至关重要.
科学领域:
- 环境科学 环境科学
- 水文学的水文学
- 生态生态学 生态生态学
背景情况:
- 土地使用变化对水文过程和水质在各个尺度上产生深远影响.
- 可持续的水资源管理需要对这些土地使用与水的相互作用有深入的了解.
- 盖普-奇昂流域作为分析这些动态的案例研究.
研究的目的:
- 调查土地利用变化对Gap-Cheon流域水量和水质的影响.
- 分析历史土地使用数据 (2012-2022年) 并预测未来的变化 (到2052年).
- 评估不同土地使用类型,特别是城市绿地,森林和湿地在减轻负面影响方面的作用.
主要方法:
- 利用未来土地使用模拟 (FLUS) 模型进行土地使用变化预测.
- 采用水文模拟程序-FORTRAN (HSPF) 模型来评估水量和水质动态.
- 使用确定系数 (R2),百分比偏差 (PBAIS) 和平均绝对误差 (MAE) 评估模型性能.
主要成果:
- 观察到土地利用的重大变化,包括城市化,农业扩张以及森林和湿地地区的变化.
- 确定了土地利用变化对地表排水,蒸发,流量和营养物质负载的直接影响.
- 量化了城市绿地对排水和吸水的缓解作用,以及森林和湿地在水平衡和水质中的作用.
结论:
- 有信息的土地利用规划对于可持续的流域管理至关重要.
- 城市绿地,森林和湿地是维持水平衡,改善水质和减轻洪水的关键组成部分.
- 在土地利用规划中,以自然为基础的解决方案对于在面对环境挑战时创造弹性和平衡的生态系统至关重要.
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