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花可以帮助清理径流养分

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Mobot

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Feb 19, 2024, 6:00:50 PM2/19/24
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花可以帮助清理径流养分
https://www.solidot.org/story?sid=77391

一项研究发现，生长在廉价浮动平台上的花可以帮助清理污染的水道。相比自然氮循环，花在 12 周内能从未经处理的水中多移除 52% 的磷和 36% 的氮。培育的花还能在花卉市场获得收入。对不同种类的花的测试显示，大型万寿菊（giant marigolds）效果最显著。水污染通常是由来自农田、城市草坪甚至化粪池的径流造成的，下雨时过多的磷、氮等营养物质会冲入湖泊和河流，导致有害藻类大量繁殖。径流养分影响着水生态系统的健康。受浮动农场的启发，研究人员将在浮动木筏上种植插花作为一种移除多余养分的方法。


Mon, 19 Feb 2024 23:11:25 +0800

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Feb 20, 2024, 5:28:04 PM2/20/24
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