Assessing the Sustainability Impact of Land-Use Changes and Carbon Emission Intensity in the Loess Plateau

被引:1
|
作者
Ma, Shengli [1 ,2 ,3 ,4 ]
Xu, Mingxiang [2 ,3 ,5 ,6 ]
机构
[1] Northwest A&F Univ, Coll Forestry, Yangling 712100, Peoples R China
[2] Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Peoples R China
[3] Minist Water Resources, Yangling 712100, Peoples R China
[4] Qinghai Univ, Coll Ecol & Environm Engn, Xining 810016, Peoples R China
[5] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[6] Northwest A&F Univ, Inst Soil & Water Conservat, Beijing 712100, Peoples R China
基金
中国国家自然科学基金;
关键词
land-use changes; carbon emission intensity; spatiotemporal distribution; spatial heterogeneity; sustainability; Loess Plateau; CHINA;
D O I
10.3390/su16198618
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Regional socioeconomic development is intricately tied to reasonable land-use resources. Although many studies have analyzed land-use carbon emissions, there is a lack of analysis of the concept of intensity. Studying the land-use carbon emission intensity (LUCEI) is crucial for shaping effective land management strategies that support the integrated sustainable development of society, the economy, and the environment. This study examines land-use changes on the Loess Plateau (LP) from 2000 to 2020. The coefficient method, spatial autocorrelation analysis, and optimal parameters-based geographical detector model are used to identify and analyze the spatial clustering patterns and influencing factors affecting LUCEI, which provides more in-depth insights for the study of LUCEI. The results indicate: (1) Urban and Grassland areas showed the most significant growth, with Urban areas expanding by 10,845.21 km2 and Grasslands by 7848.91 km2, respectively. This Urban expansion was mainly caused by the conversion of Grassland and Cropland, while Grassland expansion was primarily attributed to the decline in Barren. (2) The average LUCEI on the LP climbed from 0.38 in 2000 to 0.73 in 2020, indicating a 190.70% growth rate. (3) The spatial pattern of LUCEI remained stable but unevenly distributed, with extensive High-High and Low-Low clusters. (4) Socioeconomic factors had a greater explanatory power for LUCEI in the LP than natural factors. The LUCEI is not driven by a single factor, but by the combined influence of multiple factors. The interaction between nighttime light and population density explained the spatial distribution of LUCEI most strongly, with a q-value of 0.928. The findings underscore the critical role of socioeconomic development in shaping carbon emission dynamics on the LP. By linking LUCEI growth to land-use changes, this study offers concrete scientific guidance for policymakers seeking to balance socioeconomic growth with sustainable land-use practices. Based on these results, we recommend developing appropriate urban development plans that optimize land-use structures, enhance regional carbon sequestration capacities, and fully implement green transition requirements.
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收藏
页数:14
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