南水北调中线生态保护措施对水源区碳中和的影响——以南阳市为例

The impact of ecological protection measures on carbon neutralization in the water source area of the Middle Route of the South-to-North Water Diversion Project——A case study of Nanyang

为研究南水北调中线工程调水后采取的生态保护措施对水源区碳中和的影响,以南阳市为研究区域,梳理保障南水北调调水工程运营颁布的相关政策,利用碳排放、碳吸收测算模型分别测算水源区的碳排放量和碳吸收量,分析政策驱动引致的生态保护行动对南水北调水源区减排固碳能力的影响。研究发现:南阳市的碳排放量以2014年为结点整体呈先增长后下降的阶段性特征,碳吸收量整体呈现显著上升变化趋势;南阳市的碳吸收量大于碳排放量,整体已达到“碳中和”要求;水污染治理、节能减排、水土流失治理、林业建设等保障调水的生态保护措施通过增加水源区的减排固碳能力,促进“双碳”目标实现。研究结果为双碳目标实现提供决策参考。

To study the impact of ecological protection measures adopted after water diversion of the Middle Route of the South-to-North Water Diversion Project on carbon neutrality in the water source area,Nanyang was taken as the research area,and relevant policies issued to ensure the operation of the project were sorted out.Carbon emission and carbon absorption calculation models were used to measure carbon emission and carbon absorption in the water source area respectively.The effects of policydriven ecological protection actions on carbon emission reduction and carbon sequestration capacity of the water source area of the South-to-North Water Diversion Project were analyzed.The results showed that the carbon emission of Nanyang in 2014 as a node,the overall stage of the first increase and then decline,carbon absorption showed a significant upward trend.The carbon absorption of Nanyang was greater than the carbon emission,and the whole had reached the"carbon neutral"requirement.Ecological protection measures to ensure water transfer,such as water pollution control,energy conservation and emission reduction,soil erosion control,and forestry construction,promote the realization of the"double carbon"goal by increasing the carbon emission reduction and sequestration capacity of water source areas.The results of this study provide a reference for the implementation of dual carbon goals.