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现有的湿地保护计划错过了营养减少目标

Shan Zuidema¹, Wilfred M Wollheim^1,2, Christopher J Kucharik³

¹Earth Systems Research Center, University of New Hampshire, Durham, NH 03824, USA.

|April 17, 2024

概括

湿地恢复可以减少污染,但它的有效性各不相同. 大规模项目可能只能满足墨西哥湾死区营养减少目标的一小部分.

科学领域:

环境科学环境科学
生态系统恢复恢复生态系统
水质管理水质管理

背景情况:

过多的化肥会导致海洋生态系统的低氧.
建议恢复湿地以减轻从流域的气出口.
湿地恢复对于减少的效果的估计有很大差异.

研究的目的:

评估大规模湿地恢复计划对墨西哥湾营养减少的影响.
通过基于过程的物理建模,评估两个假设湿地恢复计划的有效性.

主要方法:

利用基于过程的物理建模来模拟营养出口.
限制河流流量以匹配观测到的盆地范围的流量.
整合了每日分辨率以捕捉季节性和风暴流动力学.

主要成果:

模拟的湿地恢复计划仅达到墨西哥湾死区营养减少目标的10%至60%.
地下液储存,土地利用断开,以及营养输入的时间减少了气拦截.
由于模型的特殊性,模拟的减少比以前的估计低.

结论:

目前的大规模湿地恢复策略可能比先前估计的效率要低.
优化湿地布局,考虑地下和时间动态对于有效的气减排至关重要.
为了改善墨西哥湾的水质,需要在田边湿地以外的干预措施的组合.

关键词:

缺氧缺氧是指缺氧的情况.建模建模模型建模模型这就是的酸.湿地恢复湿地恢复

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