湾区土地利用变化对人类排放和淡水缩潜力的空间显著影响
Chen Chen1,2, Xiaohu Zhang1,3, Chris Webster1,3
1Department of Urban Planning and Design, The University of Hong Kong, Hong Kong, China.
Environmental science & technology
|October 10, 2024
概括
土地利用的变化导致 (P) 排放和淡水缩潜力 (FEP). 水产养殖的扩张现在是主要的P来源,影响大湾区的水质.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 水资源管理 水资源管理
背景情况:
- 土地利用变化是人为 (P) 排放和淡水优化潜力 (FEP) 的主要驱动因素.
- 在区域规模上,土地利用和P诱导的FEP之间的空间时间异质关系仍然未被充分探索.
研究的目的:
- 在广东 - 香港 - 澳门大湾区以精细的空间分辨率评估P排放和P诱导的FEP.
- 揭示P排放和FEP对土地利用变化的动态反应.
主要方法:
- 土地使用分类 土地使用分类
- (P) 流量建模
- 空间分析是一种空间分析.
- 因果链建模因果链建模
主要成果:
- 土地从耕地转化为不透气的土地增加了P排放,这是一个占主导地位但削弱因素.
- 水产养殖土地的扩张成为增加P.排放的主要原因.
- 土地转换为不透水和水产养殖土地显著增加了FEP.
结论:
- 土地利用变化在大湾区显著影响P排放和FEP.
- 水产养殖的扩张带来了对水质的日益关注的环境问题.
- 有针对性的土地管理策略对于减轻P污染和FEP至关重要.
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