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在中国沿海地区,基于流量分析的气环境损失的时空区分和控制策略

Yiming Liu¹, Hui Zeng¹

¹School of Urban Planning and Design, Peking University, Shenzhen, 518055, China.

Journal of environmental management

|December 2, 2023

概括

由于陆海协调,中国沿海水域的污染已经减少,但牲畜和水生系统仍然是主要来源. 控制这些行业的气相排放和表面污染对于未来的海洋生态系统健康至关重要.

科学领域:

环境科学环境科学
海洋生态海洋生态学
污染控制污染控制

背景情况:

沿海地区的人类活动造成的污染是一个严重的环境问题.
缺乏对影响海洋生态系统的环境损失 (NEL) 的系统评估.
人为排放影响沿海水质和海洋生物.

研究的目的:

系统地评估中国沿海地区的气环境损失 (NEL).
将气排放源分类并分析它们对海洋生态系统的影响.
评估气排放控制战略的有效性,并确定未来的挑战.

主要方法:

排放源分类为五个子系统:畜牧业,农业,水产,工业和住宅.
流量分析以确定11个沿海省份的人为排放 (气体,液体,固体阶段) (2011年,2015年,2020年).
使用社会指标和NEL流量的相关性分析构建成本指数.

主要成果:

自陆海协调以来,中国沿海地区的NEL总量从18.93 TgN下降到14.66 TgN.
牲畜和水生系统是NEL的主要贡献者.
波海和黄海面临的污染威胁最高.
液相排放得到控制;气相排放仍然是一个挑战.
管理工具对于点/线源是有效的,但对于水产养殖是不那么有效的.

结论:

陆海协调已经减少了中国沿海地区的整体气环境损失.
牲畜和水生系统需要有针对性的策略来减轻污染.
控制来自畜牧业和水产养殖业的气相排放和表面污染对于未来的海洋健康至关重要.
NEL流量分析可以为营养污染的区域管理提供信息.

关键词:

沿海地区沿海地区环境管理环境管理陆海协调陆海协调材料流量分析材料流量分析气气是一种气.

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