作为对气应用强度的反应,净水缺陷网络的暴露
Zihan Xu1, Huining Zheng2, Chongyao Yang3
1School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China.
The Science of the total environment
|July 3, 2024
概括
在耕地上增加的应用显著增加了人口对净水缺陷的暴露,特别是在东湖盆地. 有针对性的土地管理对于减轻这些影响和提高水质至关重要.
科学领域:
- 环境科学 环境科学
- 生态系统服务生态系统服务
- 水质管理水质管理
背景情况:
- 生态系统服务,特别是水净化,对土地使用强度和污染物排放敏感.
- 农业中 (N) 应用的增加影响了净水供应和需求.
- 有限的研究存在于耕地N应用对人口暴露在净水缺陷及其输送网络的影响.
研究的目的:
- 探索1990年至2015年东廷湖 (DTL) 盆地中暴露的空间模式.
- 在各种共享社会经济路径 (SSP1-5) 下模拟2050年潜在的N暴露变化.
- 为了澄清N输送途径,并确定影响N暴露和水净化缺陷的因素.
主要方法:
- 综合净水缺口和人口密度数据以分析N暴露模式.
- 利用人口预测数据用于未来的N暴露模拟.
- 构建了一个N运输网络,绘制跨区域N运输路径.
主要成果:
- 随着DTL盆地N应用的增加,N暴露显著增加.
- 在DTL周边地区和江河流域下游地区观察到暴露的大幅增加.
- 下游子盆地向DTL周边地区的N出口量较高,N应用强烈影响了N交付流程.
结论:
- 净水缺陷和人口暴露高度响应农业N.应用.
- 结果为DTL盆地的空间规划和水质提升提供了关键的见解.
- 建议包括优化在度高,对DTL出口低的盆地中N的应用.
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