ZHENG Kaican,LIAO Weilin.Analysis of heatwave resistance in the districts and counties of Guangdong province based on factor analysis[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2024,63(04):1-8.
ZHENG Kaican,LIAO Weilin.Analysis of heatwave resistance in the districts and counties of Guangdong province based on factor analysis[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2024,63(04):1-8. DOI: 10.13471/j.cnki.acta.snus.ZR20240054.
Analysis of heatwave resistance in the districts and counties of Guangdong province based on factor analysis
Under the backdrop of global warming, the frequency of heatwave events has been increasing, adversely affecting the living environment and human health. Existing studies suggest that both natural and socio-economic factors influence the intensity of heatwave events. Therefore, it is particularly important to consider a comprehensive set of natural, social, and economic indicators to assess resistance to heatwaves. This study selects indicators related to the three aforementioned aspects through factor analysis concerning the districts and counties of Guangdong Province. Three common factors are extracted: individual resistance factor, public resistance factor, and natural resistance factor, which have a cumulative contribution rate reaching 90.029% and can accurately reflect the resistance capacity to heatwave events at the county scale. The results show a significant imbalance in heatwave resistance within Guangdong Province,with districts having strong resistance concentrated in the Pearl River Delta region. Based on the factor scores, the districts and counties in Guangdong Province can be divided into five categories: vulnerable resistance zone, individual resistance enhancement zone, public resistance enhancement zone, natural resistance enhancement zone, and strong resistance zone. Most districts and counties have both strengths and weaknesses in their resistance to heatwaves. The study provides specific suggestions for different categories of districts and counties, hoping to offer a scientific basis for mitigating the impacts of heatwave events.
关键词
因子分析县级尺度热浪抵抗力多源数据
Keywords
factor analysiscounty level scaleheat wave resistancemultisource data
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