改善绿色基础设施:从土壤健康的角度来看,增强多维效益
Yifei Zhu1, Shaxinyu Rui1, Kailu Zhang1
1Guangdong Provincial Engineering Technology Research Center for Urban Water Cycle and Water Environment Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Microorganism Application and Risk Control, School of Environment, Tsinghua University, Beijing, 100084, China.
Journal of environmental management
|July 13, 2025
概括
绿色基础设施有效地管理城市排水和污染物. 生物炭修正案大大提高了土壤碳捕获,改善了土壤健康,提高了绿色基础设施的性能.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 城市水资源管理
背景情况:
- 绿色基础设施对于城市水资源管理至关重要,应对排水,污染和碳储存.
- 绿色基础设施组件的优化研究不足.
- 评估实际改进措施是提高效率的关键.
研究的目的:
- 评估五项措施 - - 草本生物炭 (HB),木材生物炭 (WB),虫活动 (EA),化学肥料 (CF) 和叶子垃圾 (LA) - - 对绿色基础设施的影响.
- 评估对碳捕集,污染物去除和土壤健康的影响.
- 为优化绿色基础设施设计和管理提供科学基础.
主要方法:
- 对绿色基础设施五项改进措施的实验评估.
- 排水控制的量化,污染物去除率 (总,氨,化学氧气需求) 和土壤有机碳 (SOC) 库存.
- 评估土壤质量指数.
主要成果:
- 在所有测试组中,流失控制超过了70%.
- 污染物去除率:总 (81.6% - 93.3%),氨 (69.9% - 79.2%),化学氧气需求 (42.0% - 61.9%).
- 生物炭显著增加了SOC库存 (HB: 52.5 Mg C/ha; WB: 25.0 Mg C/ha). 树木生物炭 (WB) 获得了最高的土壤质量指数 (2.57),比对照改善了25%.
结论:
- 生物炭修正案在绿色基础设施中提高碳捕集和土壤健康方面非常有效.
- 木材生物炭在改善土壤质量方面表现出卓越的表现.
- 对优化绿色基础设施组件的进一步研究可以导致更可持续的城市水资源管理解决方案.
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