在气候变化下的水文反应和土壤水溶性反和运输,使用SWAT建模
Chujie Bu1, Pan Wu2,3, Jie Niu4,5
1College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China.
Scientific reports
|November 25, 2025
概括
气候变化影响土壤金属,如 (Sb) 和 (As). 未来的预测显示,东部河次流域的水溶性Sb和As增加,需要水资源管理策略.
科学领域:
- 环境科学 环境科学
- 水文学 水文学
- 地质化学 地质化学
背景情况:
- 气候变化改变了全球的水文过程,影响了土壤金属溶解度.
- 反 (Sb) 和 (As) 是土壤中关键的水溶性金属.
- 了解未来气候情景下的金属分布对于环境管理至关重要.
研究的目的:
- 使用增强的SWAT框架,在气候变化下预测未来的水文过程.
- 在各种气候场景下评估水溶性反和的分布.
- 为矿山流域的水资源管理提供科学基础.
主要方法:
- 开发了一个增强的土壤和水资源评估工具 (SWAT) 框架.
- 纳入的土壤实验数据和合社会经济路径 (SSP) 场景 (SSP126,SSP245,SSP370,SSP585).
- 利用土壤,降水和溪流数据的集群分析来分类子盆地.
主要成果:
- 增强的SWAT模型准确地模拟了历史的流量和沉积物负载.
- 未来的气候场景预测降水波动,温度上升和河流流量增加.
- 实验结果显示Sb和As度超过标准,与pH和土壤有机物相关.
结论:
- 在东部河流盆地预测水溶性Sb和As的百分比较高.
- 在预计的气候变化下,这些水溶性金属比例可能会随着时间的推移而增加.
- 这些发现支持了水资源管理和矿区污染物减轻的科学基础.
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