| 京津冀县域生态系统固碳服务“供-需-流”时空格局与碳补偿分区 |
| 摘要点击 228 全文点击 7 投稿时间：2025-05-09 修订日期：2025-07-22 |
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| 中文关键词 京津冀 生态系统固碳服务 供需比 固碳服务流 碳补偿分区 |
| 英文关键词 Beijing-Tianjin-Hebei ecosystem carbon sequestration services supply-demand ratio carbon sequestration service flow carbon compensation zoning |
| DOI 10.13227/j.hjkx.202505071 |
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| 中文摘要 |
| 探究生态系统固碳服务供给、服务需求、服务流时空格局并测度碳补偿经济价值、进行碳补偿分区，对于缓解气候变化及实现人类社会“双碳”目标具有重要现实意义. 基于土地利用覆被数据、夜间灯光数据和能源消费统计数据， 构建InVEST模型测算京津冀生态系统固碳服务供给、需求及供需比；构建断裂点-场强模型测算固碳服务流半径、强度及转移量；基于修正后碳补偿价值模型测算京津冀县域碳补偿经济价值并进行碳补偿分区. 结果表明：①2000~2020年间京津冀生态系统固碳服务供给量总体呈现下降趋势；需求量总体呈现上升趋势；县域生态系统固碳服务高供给区县始终为承德市围场满族蒙古族自治县、丰宁满族自治县和隆化县以及北京市辖区；高需求区县始终为北京市辖区和天津市辖区. ②2020年京津冀各输出区的固碳服务流半径范围为1.98~714.19 km， 流强度范围为60.21~2 714 646.33 t·km-2；共31个区县为输入区， 输入量最小的县域为天津市静海区，输入量最大的县域为沧州市辖区. ③2020年京津冀县域碳支付区共包括保定高阳县、廊坊文安县和保定清苑区等20个区县，支付总金额为105.39亿元. 县域碳补偿区共包括围场满族蒙古族自治县、丰宁满族自治县和北京市辖区等138个区县，补偿总金额为1 408.74亿元. |
| 英文摘要 |
| Exploring the spatial and temporal patterns of ecosystem carbon sequestration service supply， service demand， and service flow， as well as measuring the economic value of carbon compensation for carbon compensation zoning， is of great practical significance for mitigating climate change and achieving the dual carbon goals of human society. Based on land use cover data， nighttime light data， and energy consumption statistics， we construct an InVEST model to calculate the supply， demand， and supply-demand ratio of carbon sequestration services in the Beijing-Tianjin-Hebei ecosystem. We also construct a fracture point field strength model to calculate the radius， strength， and transfer amount of carbon sequestration service flow， and based on the revised carbon compensation value model， we calculate the economic value of carbon compensation in the Beijing-Tianjin-Hebei County area and carry out carbon compensation zoning. The results showed that： ① The overall supply of carbon sequestration services in the Beijing-Tianjin-Hebei ecosystem showed a downward trend from 2000 to 2020. The overall demand was showing an upward trend. The counties with high supply of carbon sequestration services in the county-level ecosystem always included Weichang Manchu and Mongolian Autonomous County， Fengning Manchu Autonomous County， Longhua County， and the jurisdiction of Beijing. High demand districts and counties were always under the jurisdiction of Beijing and Tianjin. ② The radius range of carbon sequestration service flow in each export area of Beijing-Tianjin-Hebei in 2020 was 1.98-714.19 km， and the flow intensity range was 60.21-2 714 646.33 t·km-2. There were a total of 31 districts and counties as input areas， with Jinghai District in Tianjin having the smallest input volume and Cangzhou City having the largest input volume. ③ In 2020， the Beijing-Tianjin-Hebei County carbon payment area included 20 districts and counties including Gaoyang County in Baoding， Wen'an County in Langfang， and Qingyuan District in Baoding， with a total payment amount of 10.539 billion yuan. The county-level carbon compensation zone included 138 districts and counties， including Weichang Manchu and Mongolian Autonomous County， Fengning Manchu Autonomous County， and Beijing Municipal District， with a total compensation amount of 140.874 billion yuan. |
