State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, No. 5, South Jinhua Road, Xi'an, 710048, Shaanxi, China.
State Key Laboratory of National Forestry Administration On Ecological Hydrology and Disaster Prevention in Arid Regions, Xi'an University of Technology, Xi'an, 710048, Shaanxi, China.
Environ Sci Pollut Res Int. 2023 Jun;30(26):68313-68326. doi: 10.1007/s11356-023-27110-1. Epub 2023 Apr 29.
Exploring the process of carbon emissions under the "carbon peaking and carbon neutrality goals" can contribute to sustainable economic development. This research takes Shaanxi Province as an example. We elaborated on the spatial and temporal characteristics of land-use change from 2000 to 2020 and adopted the carbon emission model method to calculate land-use carbon emissions, also used urban morphological indicators to reveal the main factors of carbon emission changes. The results show that from 2000 to 2020, the land-use change in Shaanxi Province is mainly reflected in the increase in construction land area and the decrease in agricultural land area. Among them, the construction land area increased by 2192 km, and the agricultural land area decreased by 5006 km. Land-use carbon emissions increased by 1.28 × 10 kg during this period. Construction land is a major contributor to carbon emissions. The forestland is the main carbon sink. Carbon emissions showed a spatial pattern of "high in the north, low in the south, and concentrated in the middle." Urban form change is the driving factor affecting land-use carbon emissions in Shaanxi Province. The results of the research contribute to the understanding of regional carbon emission mechanisms and provide a scientific basis for reducing carbon emissions.
探索“碳达峰碳中和”目标下的碳排放过程，有助于实现可持续经济发展。本研究以陕西省为例，阐述了 2000—2020 年土地利用变化的时空特征，并采用碳排放模型方法计算土地利用碳排放，利用城市形态指标揭示了碳排放量变化的主要因素。结果表明，2000—2020 年陕西省土地利用变化主要表现为建设用地面积增加和农业用地面积减少，其中建设用地面积增加 2192km，农业用地面积减少 5006km，在此期间土地利用碳排放量增加了 1.28×10kg。建设用地是碳排放的主要贡献者，林地是主要的碳汇。碳排放量呈现出“北高南低，中部集中”的空间格局。城市形态变化是影响陕西省土地利用碳排放的驱动因素。研究结果有助于理解区域碳排放机制，并为减少碳排放提供科学依据。
