通过世界上最大的高速铁路网络减少工业污染和区域间的环境不平等
Ziliang Liu1,2, Shengjun Zhu1,2, Canfei He1,2
1College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
PNAS nexus
|December 11, 2024
概括
高速铁路 (HSR) 通过促进绿色技术转让和降低排放,显著减少工业污染. 这种基础设施发展通过使较不发达地区更受益,促进了环境平等.
科学领域:
- 环境科学 环境科学
- 经济学 经济学 经济学
- 城市规划 城市规划
背景情况:
- 工业污染和空间环境不平等对健康和可持续发展构成风险,特别是在低收入国家.
- 大规模的公共交通,如高速铁路 (HSR),可以通过连接城市中心来减轻这些问题.
研究的目的:
- 估计HSR在中等收入国家的全国性环境影响.
- 分析HSR对工业排放的整体和分布影响.
主要方法:
- 在中国HSR扩张期间利用了超过50万个工业公司的排放记录.
- 进行了全国范围的微观和地理分布分析 (城市之间和城市内).
主要成果:
- 高线开放导致了显著的固体排放减少 (5.11-13.80%).
- 减少的原因是绿色技术的城市间流量增加和排放强度下降.
- 在HSR驱动的排放减少占总排放的0.49-1.70%.
结论:
- 高温电路有效减少工业污染,促进环境平等.
- 落后地区从HSR中获得更大的好处,改善区域间的环境公平.
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