任文静,赵敬源,马西娜,韩力

• 1:运城学院美术与工艺设计系
• 2:长安大学建筑学院
• 3:西安科技大学建筑与土木工程学院

摘要(Abstract)：

【目的】大气污染与温室效应等环境问题，已成为影响城市可持续发展的重要因素，在减污降碳的实施路径方面亟需开展相应研究。【方法】以西安市主城区为研究对象，通过构建景观指数加权变异模型，分析城市“源-汇”景观格局的结构特征；基于反距离加权插值与约束性排序分析法，探究碳排放量与可吸入颗粒物的空间分布特点，揭示“源-汇”景观对“碳污”的协同影响。【结果】结果显示，“源-汇”景观格局的特征尺度为距离研究区几何中心3 km、7 km、14 km的幅度边界处；碳排放量、PM_(2.5)、PM_(10)的反距离加权插值模型判定系数R~2分别为0.854 1、0.823 8与0.788 5;“碳污”与景观指数之间的多元多重回归模型判定系数R~2为0.754 0;16个“源-汇”景观关键指数对“碳污”的累计解释率达到66.2%,与“碳污”相关性的累计贡献率达到87.9%。【结论】结果表明，研究区环路界限可反映景观空间结构的扩展过程与分布特点；冬季采暖期碳排放量与可吸入颗粒物的空间异质性显著，呈现出不同的空间分布特点；通过对街区内绿地斑块密度、最大斑块指数、绿地率、香农多样性指数以及建筑密度与建筑高度变异系数进行差异化空间配置，可对“碳污”具有显著的协同消减影响。研究结果为城市景观规划、碳排放量与空气污染治理提供了科学依据，可促进城市生态环境的可持续发展。

关键词(KeyWords)： “源-汇”景观;碳排放量;可吸入颗粒物;协同效应;空间配置;西安市;人类活动;影响因素

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(52278087);; 山西省基础研究计划项目(202303021222236);; 山西省高等学校哲学社会科学研究项目(2023W166);; 运城学院学科建设经费资助

作者(Author): 任文静,赵敬源,马西娜,韩力

DOI: 10.13928/j.cnki.wrahe.2024.01.008

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