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一个具有闭环水循环的太阳能驱动系统,用于被动和可持续的盐土整治
Zhi Yang1, Lei Chen2, Zepeng Rao3
1State Key Laboratory of Soil Pollution Control and Safety, Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Innovation Center of Yangtze River Delta, Zhejiang University, Zhejiang 314102, China.
Water research
|November 21, 2025
概括
本研究介绍了一种可持续的,节水的,用于盐土整治的系统. 它模仿了水循环,去除了95.9%的土壤盐,恢复了土地的耕作.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 农业工程 农业工程
背景情况:
- 土壤盐化对耕地和全球粮食安全构成重大威胁.
- 传统的盐土浸方法耗水量大,且不太可持续.
- 需要创新的,节水的土壤整治策略.
研究的目的:
- 开发和评估一个可持续的,节水的土壤整治系统.
- 评估系统在去除盐和节约水的有效性.
- 为了证明恢复农业用途的盐土的潜力.
主要方法:
- 一个微气候室系统被设计成模仿盐的自然水循环.
- 该系统以闭环的方式运行,将浸出盐转移到蒸发器中.
- 在两个季节进行了实地测试,以评估性能和节水.
主要成果:
- 该系统实现了7.12kg m-2 day-1的水循环率,在7天内去除了95.9%的土壤盐.
- 扩大规模的实地测试显示,在10天内,液的盐度降低了90%以上.
- 与传统方法相比,该系统节省了87.13%和79.65%的水资源,恢复了土壤的耕作.
结论:
- 拟议的微气候室系统为盐土整治提供了可持续和节水的解决方案.
- 利用太阳能和闭环水循环,该系统有效地降低了土壤的盐度.
- 这种方法提供了一个可行的策略,以打击土地退化和加强粮食安全.
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