干旱区地理2024，Vol.47Issue(5)：830-840,11.DOI:10.12118/j.issn.1000-6060.2023.279
中国新世纪水稻生产负外部性评估及时空演变研究
Evaluation and spatial-temporal evolution of negative externalities of rice production in China in the 21st century
摘要
Abstract
Research on the indirect value of rice production has predominantly focused on ecosystem services,of-ten overlooking the importance of negative externalities.Addressing these externalities is crucial for ecological regulation and the promotion of sustainable agriculture.This study employed market valuation and spatial auto-correlation methods to evaluate the negative externality value of rice production in China,using panel data from 2000 to 2021 across various provinces.The analysis covered greenhouse gas emissions,pollution from fertilizers and pesticides,plastic film residue,water resource consumption,and energy pollution from agricultural machin-ery.The findings reveal that:(1)The mean annual value of negative externalities in national rice production was approximately 2080.27×108 yuan,with the contributions from greenhouse gas emissions,fertilizers,pesticides,plastic waste,water resource consumption,and agricultural machinery energy pollution being 35.93%,20.71%,10.27%,9.04%,17.44%,and 6.61%,respectively.(2)The total value of negative externalities showed an initial increase followed by a decrease,with 2012 marking a turning point.This trend reflects the impact of new era of ecological control measures.(3)There was significant spatial heterogeneity in the distribution of negative exter-nalities,mainly concentrated to the east of the Hu Line.The annual mean values in rice-producing regions were as follows:central China(1025.45×108 yuan),south China(426.96×108 yuan),southwest China(329.36×108 yu-an),northeast China(221.52×108 yuan),and north China(61.99×108 yuan).There was a positive global correla-tion between external cost values and geographical space,with local spatial autocorrelation evolving from high-high clustering in the southeast to low-low clustering and insignificance toward the northwest.High-high clusters were predominantly found in central and southern rice-growing areas of China,while low-low clusters were main-ly in the northern region of China.This paper presents a novel approach to assessing negative externalities in rice production,offering a comprehensive and dynamic global perspective.It also proposes strategic responses involv-ing government,market,and farmer-led initiatives.关键词
水稻生产/负外部性/价值评估/时空演变/生态防控Key words
rice production/negative externality/value evaluation/spatial-temporal evolution/ecological con-trol引用本文复制引用
周镕基,骆丽庄,吴思斌..中国新世纪水稻生产负外部性评估及时空演变研究[J].干旱区地理,2024,47(5):830-840,11.基金项目
国家社会科学基金一般项目(21BJY257) （21BJY257）
湖南省创新平台开放基金项目(2023HSKFJJ015)资助 （2023HSKFJJ015）
