[广州市土地利用优化和碳储存评估以实现碳中立]
Gui-Bin Zheng1, Yan Li1, Zhuo Wu1
1School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China.
Huan jing ke xue= Huanjing kexue
|December 19, 2025
概括
在广州优化土地利用以实现碳中和,减少了5.5%的排放,增加了碳库存. 这项研究为低碳城市化和实现2060年碳中和目标提供了科学基础.
科学领域:
- 城市规划和环境科学
- 生态系统服务和碳管理
- 可持续发展和减缓气候变化
背景情况:
- 土地使用模式显著影响区域碳排放和封存.
- 到2060年实现碳中和,需要对土地利用进行战略优化.
- 广州2015-2020年间的土地使用动态显示,城市扩张影响了生态和农业区域.
研究的目的:
- 用FLUS模型模拟广州未来的土地使用场景.
- 优化土地分配,到2060年实现碳中和.
- 在优化土地利用模式下评估碳排放和储存.
主要方法:
- 利用未来土地使用模拟 (FLUS) 模型进行土地使用预测.
- 应用了碳排放系数方法和线性编程,以实现最佳的土地分配.
- 采用InVEST模型来评估碳排放和储存动态.
主要成果:
- 在2015-2020年期间,广州的城市扩张导致碳排放和碳库存的净减少.
- 为2060年优化土地利用碳中和性限制了转换,允许建筑和生态土地扩张,同时减少农田.
- 2060年优化方案预计,与2015年相比,净碳排放量减少5.5%,碳储量增加,土地碳平衡达到96.89%.
结论:
- 优化土地利用对于减轻碳排放和加强城市地区的碳捕获至关重要.
- 该研究为广州实现碳中和的低碳城市化战略提供了科学框架.
- 根据这项研究提出的适应性策略可以指导可持续土地管理和气候目标的政策.
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