| 基于水资源全生命周期的浙江省水系统碳排放及情景预测 |
| 摘要点击 523 全文点击 79 投稿时间：2024-04-10 修订日期：2024-06-15 |
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| 中文关键词 水资源 生命周期 碳排放 情景预测 STIRPAT模型 |
| 英文关键词 water resources lifecycle carbon emissions scenario prediction STIRPAT model |
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| 中文摘要 |
| 厘清水资源生命周期中的“水-能-碳”关联过程和水系统碳排放的变化规律,对于区域水资源管理、能源高效利用和低碳发展具有重要意义. 构建了一个基于“水-能-碳”关联的水资源全生命周期碳排放综合分析框架,采用2011~2021年统计数据,对浙江省水系统碳排放量进行核算并分析其动态变化,利用STIRPAT模型对2022~2040年用水系统碳排放进行了情景预测. 结果表明：①浙江省水系统碳排放主要呈“上升-下降-上升”趋势,其在2011~2012年和2020~2021年分别增加268.77万t和488.84万t,2012~2020年减少1 137.16万t. ②浙江省用水系统碳排放量占比高达95%以上,对水系统碳排放总量变化具有决定性影响. ③城镇化率是用水系统各环节碳排放量变化的关键驱动因子,而人口则主要影响工业用水和居民生活用水碳排放量. ④用水系统碳排放量,在低碳情景和粗放发展情景下分别处于最低水平和最高水平. 居民和公共生活用水是未来浙江省水系统碳排放量增长的主要环节. 因此,在合理控制人口增长和推进城镇化进程的同时,需要采取综合性的节水减排策略,包括提高用水效率、优化用水结构,以及降低碳排放强度,从而有效促进水系统的碳减排. |
| 英文摘要 |
| Clarifying the “water-energy-carbon” nexus process and variation in the carbon emissions of a water system throughout the lifecycle of water resources is crucial for regional water resource management, energy-efficient utilization, and low-carbon development. This study introduces a comprehensive analytical framework for assessing carbon emissions across the entire lifecycle of water resources, grounded in the “water-energy-carbon” nexus. Utilizing statistical data from 2011 to 2021, the research analyzed the dynamic changes in carbon emissions in the water system in Zhejiang. Additionally, the STIRPAT model was employed to forecast carbon emissions from 2022 to 2040. The results showed that： ① The carbon emissions of the water system in Zhejiang mainly exhibited an “upward-downward-upward” trend, with an increase of 2.687 7 million tons in 2011-2012 and 4.888 4 million tons in 2020-2021, respectively, and a decrease of 11.371 6 million tons from 2012 to 2020. ② The carbon emissions of the water system in Zhejiang accounted for more than 95%, which had a decisive impact on the total change in the carbon emissions of the water system. ③ Urbanization rate was a key driving factor for changes in carbon emissions across various water system sectors, while population primarily affected carbon emissions from industrial and residential domestic water use. ④ The carbon emissions from the water system were at the lowest level under the low-carbon scenario and at the highest level under the extensive or coarse development scenario. Residential and public facility water consumption will be the main source of carbon emissions in the water system in the Zhejiang Province. Therefore, while controlling population growth and promoting urbanization, carrying out water-saving and emission reduction measures, including improving water use efficiency, optimizing the structure of water use, and reducing carbon emission intensity are necessary to effectively promote carbon reduction in the water system. |
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