整合库存模型和卫星观测,以量化来自中国MSW垃圾填埋场的现场甲排放量
Shuai Zhang1, Xuyang Huang1, Menglin Lei1
1MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou, PR China.
Journal of environmental management
|January 20, 2026
概括
中国中国中国中国.
科学领域:
- 环境科学 环境科学
- 大气化学 大气化学
- 气候变化研究 气候变化研究
背景情况:
- 废物行业是甲的主要来源,甲是一种强大的温室气体.
- 准确的垃圾填埋场甲排放量化对于减缓气候变化至关重要.
- 现有的方法在捕获特定地点数据和时间分辨率方面存在局限性.
研究的目的:
- 在中国全国范围内,从城市固体废物 (MSW) 填埋场进行甲排放的表征和量化.
- 为了提高准确性,将自下而上的库存数据与自上而下的卫星观测数据集成在一起.
- 评估中国"零废弃物"政策对未来排放的影响.
主要方法:
- 开发了中国300多个主要MSW垃圾填埋场的数据库.
- 使用IPCC第一级衰变方法估计的排放量.
- 库存估计与高频谱卫星观测 (EMIT,PRISMA) 的比较.
主要成果:
- 中国的垃圾填埋场甲排放量从2005年的1.015万增加到2015年左右的2.161万峰值,然后在2023年下降到1.98万.
- 卫星数据显示,瞬间的排放量超过了基于库存的平均值,这表明目前的模型低估了逃逸泄漏.
- 完全实施"零废弃物"政策可以在2030年前将排放量减少59%左右.
结论:
- 结合自下而上和自上而下的方法,可以提高垃圾填埋场甲排放的评估.
- 当前的库存模型可能低估了逃逸的甲泄漏.
- 像"零废弃物"倡议这样的政策干预对于大幅减少排放至关重要.
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