[甘肃省土地利用碳排放时空演变特征及影响因素]。

Q2 Environmental Science
Zi-He Li, Dong-Mei Zhou, Jing Jiang, Jing Ma, Xiao-Yan Zhu, Peng Shi, Jun Zhang, Qing-Han Dong
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引用次数: 0

摘要

土地生态系统是世界上最大的碳汇,土地利用变化是导致区域碳排放的主要因素之一。本研究通过对甘肃省2000-2020年土地利用碳排放时空演变特征及影响因素的研究,旨在为甘肃省推进土地低碳利用和低碳经济发展提供科学依据和参考。本研究利用土地利用数据和温室气体排放系数法,分析了甘肃省市域尺度土地利用碳排放的增长趋势和省域尺度时空演变特征,并通过主成分分析确定了控制因子。结果表明:①2000-2020年,甘肃省土地利用碳排放量总体呈上升趋势,从2428.93万吨上升到5773.96万吨。第一阶段从 2000 年到 2014 年为大幅增长期,第二阶段从 2014 年到 2020 年为稳定略减期。建设用地是主要碳源,碳强度持续上升。从空间上看,呈现出 "东高西低 "的格局,东部地区的碳排放量明显高于西部地区。根据排放特征,甘肃省可划分为五类碳排放区:缓慢增长区、相对缓慢增长区、适度增长区、相对快速增长区和快速增长区。甘肃省土地利用碳排放量持续增长的主要原因是经济发展水平、土地利用程度和能源消耗。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
[Spatial and Temporal Evolution Characteristics of Carbon Emission from Land Use and Influencing Factors in Gansu Province].

Land ecosystems are the largest carbon sink in the world, and land use change is one of the main factors leading to regional carbon emissions. By studying the spatiotemporal evolution characteristics and influencing factors of land use carbon emissions in Gansu Province from 2000 to 2020, this research aimed to provide a scientific basis and reference for promoting low-carbon land use and low-carbon economic development in Gansu Province. Using land use data and the greenhouse gas emission coefficient method, the study analyzed the growth trend of land use carbon emissions at the city-regional scale in Gansu Province, and the spatiotemporal evolution characteristics at the provincial scale, and identified the controlling factors through principal component analysis. The results showed that: ① From 2000 to 2020, land use carbon emissions in Gansu Province showed an overall increasing trend, from 24.289 3 million tons to 57.739 6 million tons. The first stage from 2000 to 2014 was a significant increase period, whereas the second stage from 2014 to 2020 was a stable and slightly decreasing period. Construction land was the main carbon source, and the carbon intensity continued to increase. ② Spatially, there was an "east high, west low" pattern, with carbon emissions in the eastern part of the province significantly higher than those in the western part. ③ Based on emission characteristics, Gansu Province could be divided into five types of carbon emission zones: slow growth, relatively slow growth, moderate growth, relatively fast growth, and rapid growth. ④ The main reasons for the continuous increase in land use carbon emissions in Gansu Province were economic development level, degree of land use, and energy consumption.

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来源期刊
Huanjing Kexue/Environmental Science
Huanjing Kexue/Environmental Science Environmental Science-Environmental Science (all)
CiteScore
4.40
自引率
0.00%
发文量
15329
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