| 石羊河流域“三生”空间演变对碳固存和碳排放的影响机制 |
| 摘要点击 654 全文点击 83 投稿时间：2024-04-14 修订日期：2024-05-25 |
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| 中文关键词 “三生”空间 碳固存 碳排放 影响机制 石羊河流域 |
| 英文关键词 “Production-Living-Ecological” space carbon sequestration carbon emissions influence mechanism Shiyang River Basin |
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| 中文摘要 |
| “三生”空间联动减碳是实现“双碳”战略的重要抓手,探讨“三生”空间演变对碳固存和碳排放影响机制是促进区域碳中和与可持续发展的重要基础.以石羊河流域为研究区,在分析土地利用格局演变特征的基础上识别生产、生活和生态空间,并分析“三生”空间演变特征,再利用相关模型方法分析碳固存和碳排放时空演变特征,最后借助地理加权回归模型探讨“三生”空间演变对碳固存和碳排放的影响机制.结果表明,2000~2020年石羊河流域未利用地面积变化最大,减少531.5 km2.研究期间建设用地动态度变化最大,这与快速城镇化以及各类开发区和生态移民安置区建设密切相关. 2000~2020年石羊河流域生产、生活和生态结构转换主要表现为生产空间和生态空间相互转化,其次为生产空间和生活空间相互转化.研究期间石羊河流域碳固存处于低水平但呈缓慢增加趋势,呈西南部祁连山区向东北部地区逐步降低的空间分布格局.石羊河流域碳排放呈显著增加的趋势,呈“南北低、中部高”的空间分布格局. 2000~2020年石羊河流域生产、生活、生态空间演变与碳固存、碳排放空间演变之间存在显著相关性.研究结果可为优化国土空间结构、制定区域“双碳”发展规划提供科学依据. |
| 英文摘要 |
| “Production-Living-Ecological” spatial linkage carbon reduction is an important starting point to realize the “carbon peaking and carbon neutrality” strategy. Exploring the influence mechanism of “Production-Living-Ecological” spatial evolution on carbon sequestration and emission is an important foundation to promote regional carbon neutrality and sustainable development. This study undertook the Shiyang River Basin as the research area. It aimed to identify the production, living, and ecological space on the basis of analyzing the evolutionary characteristics of land use pattern and analyze the “Production-Living-Ecological” spatial evolution characteristics and spatial and temporal evolutionary characteristics of carbon sequestration and emission by using related model methods. Furthermore, it discussed the influence mechanism of “Production-Living-Ecological” spatial evolution on carbon sequestration and emission by means of a geographically weighted regression model. The results showed that the area of the unused land in the Shiyang River Basin changed the most from 2000 to 2020, with a decrease of 531.5 km2. During the study period, the dynamic attitude of construction land changed the most, which was closely related to the rapid urbanization and construction of various developmental zones and ecological resettlement areas. From 2000 to 2020, the transformation of ecological structure of production and life in the Shiyang River Basin was mainly characterized by the mutual transformation of production and ecological space, followed by the mutual transformation of production and living space. During the study period, the carbon sequestration in the Shiyang River Basin was at a low level but showed a slow and gradual increasing trend, whereas the overall spatial distribution pattern was gradually decreasing from Qilian Mountain in the southwest to the northeast. The carbon emissions of the Shiyang River Basin showed a significant increasing trend, whereas the overall spatial distribution pattern was “low in the north and south and high in the middle.” A significant correlation was observed between the spatial evolution of production, life, and ecology and that of carbon sequestration and emission in the Shiyang River Basin from 2000 to 2020. These results provide scientific basis for optimizing the spatial structure of land and formulating the regional “double carbon” development plan. |
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