在中国高速公路沿线生物质生产的碳封存潜力
Xiaodong Ge1, Jiayu Zhang1, Yifan Wen1
1State Key Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, People's Republic of China.
Environmental science & technology
|September 10, 2023
概括
中国中国中国中国.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 生物地质化学生物地质化学
背景情况:
- 中国的目标是增加用于碳捕获的绿地,以应对气候变化.
- 道路边缘是不足利用的边缘土地,适合生物质生产.
- 道路边缘对生物质和碳捕获的潜力仍然没有得到量化.
研究的目的:
- 绘制中国各地道路边缘的生物质生产潜力.
- 评估道路排水和二氧化碳施肥对这种潜力的影响.
- 评估中国道路边缘的碳捕集能力.
主要方法:
- 使用了与地理信息系统 (GIS) 集成的生物质模型.
- 嵌入流失系数和车辆排放库存以评估影响因素.
- 进行了对碳捕集潜力的生命周期评估.
主要成果:
- 全国道路边缘显示生物质生产潜力为每年1586万碳 (Mt C yr-1).
- 道路排水增加了生物质产量1.26万,特别是在干旱地区.
- 来自车辆排放的二氧化碳受精贡献了0.09万,特别是在中国东部和南部.
- 目前主要道路边缘的碳捕获潜力估计为6.87万 C yr-1.
结论:
- 道路边缘是中国生物质生产的重要,但在很大程度上尚未开发的资源.
- 路边生态系统可以对国家碳中和目标做出重大贡献.
- 有效的管理策略至关重要,以最大限度地提高道路边缘的生态和气候效益.
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