| 基于主体功能区的碳收支时空分异和碳补偿分区：以黄河流域县域为例 |
| 摘要点击 2536 全文点击 542 投稿时间：2023-09-12 修订日期：2023-12-01 |
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| 中文关键词 碳收支 碳补偿分区 主体功能区 县域空间 黄河流域 |
| 英文关键词 carbon budget carbon compensation zoning main function-oriented zones county space Yellow River Basin |
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| 中文摘要 |
| 基于主体功能区视角探讨碳收支的时空差异与明确碳补偿分区,对推进区域低碳发展和实现“双碳”目标具有重要意义.以黄河流域550个县域为基本单元,在采用集中化指数考察黄河流域主体功能区碳收支空间分布特征的基础上,通过总量规模、 经济贡献、 生态承载和国土开发强度构建碳补偿分区的四维基准框架,并运用SOM-K-means算法建立差异化碳补偿分区方案.结果表明：①黄河流域各主体功能区碳收支量及其增长趋势均符合主体功能区定位,碳收支集中化程度也表现出显著的时空分布特征.②碳排放总量规模、 经济贡献、 生态承载和国土开发强度这4类属性区域差异明显,碳排放总量规模整体表现为增长态势,中下游具有明显的比较优势；经济贡献比较优势整体先增加后减少,中下游为经济贡献的属性优势区；生态承载能力整体提升,上游具有明显的生态承载属性优势；国土开发优势区主要集中在中下游,尤其中游的比较优势指数呈快速上升趋势.③黄河流域共有287个获补区、 78个平衡区和185个支付区,结合4类属性的比较优势指数与主体功能区规划方案,最终形成11类碳补偿分区,并对每一类型分区提出相应的低碳发展策略. |
| 英文摘要 |
| Exploring the spatiotemporal differentiation of the carbon budget and clarifying the zoning of carbon compensation based on the perspective of the main function-oriented zones is of great significance for promoting regional low-carbon development and achieving the “dual carbon” goal. This study was conducted using 550 counties in the Yellow River Basin as the basic unit, and based on the concentration index to examine the spatial distribution characteristics of carbon emissions and carbon absorptions in the main function-oriented zones of the Yellow River Basin, a four-dimensional benchmark framework for carbon compensation zoning was constructed by total scale, economic contribution, ecological carrying capacity, and land development intensity. The SOM-K-means algorithm was used to establish a differentiated carbon compensation zoning scheme. The results showed that： ① The carbon emissions and carbon absorptions and their growth trends of the main function-oriented zones in the Yellow River Basin were in line with the positioning of the main functional area, and the significant space-time distribution characteristics of the concentration level of carbon emissions and carbon absorptions were shown. ② Significant regional differences exist in the four attributes of total carbon emissions scale, economic contribution, ecological carrying capacity, and land development intensity. The overall scale of carbon emissions showed a growth trend, with obvious comparative advantages in the midstream and downstream. The overall comparative advantage of economic contribution increased first and then decreased, with the midstream and downstream being the attribute advantage areas of economic contribution. The overall ecological carrying capacity had been improved, and the upstream had obvious advantages in ecological carrying properties. The advantageous areas for land development were mainly concentrated in the midstream and downstream； in particular, the comparative advantage index in the midstream was showing a rapid upward trend. ③ Moreover, there were 287 compensated areas, 78 balanced areas, and 185 payment areas in the Yellow River Basin. Eleven types of carbon compensation zones were finally formed by combining the comparative advantage index of four types of attributes with the plan for main function-oriented zones, and corresponding low-carbon development strategies were proposed for each type of zone. |
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