Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China.
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China.
J Environ Manage. 2020 Jun 15;264:110451. doi: 10.1016/j.jenvman.2020.110451. Epub 2020 Mar 27.
Straw open burning is common practice in agricultural production, and has been identified as highly relevant to regional haze. A variety of control measures for straw open burning have been adopted in agricultural areas to mitigate air pollution, but their contribution to air quality improvement is difficult to estimate, and has been addressed by few studies. Using Jilin Province during the post-harvest season (PHS) as a study area, we empirically evaluated the contribution of the Straw Open Burning Prohibition Plan (SOBP) to air quality improvement by response surface methodology (RMS) modeling combined with scenario analysis, and constructed and introduced a stagnant index to the RMS model. The results indicated that the adoption of the SOBP by Jilin Province in the 2018 PHS mitigated air pollution effectively. The contribution of the plan to air quality improvement was also evaluated under two scenarios: if the SOBP had been implemented during the 2015 PHS, 2016 PHS, and 2017 PHS, the cumulative PM concentration would have declined in these years by 23%, 15%, and 22%, respectively, compared with their actual values; if the SOBP had not been implemented in the 2018 PHS, the cumulative PM concentration would have increased by 10%-14% compared with the actual value. The results can provide decision makers with a reference to assess the environmental performance of the SOBP, and guidance for establishing scientific environmental regulations for cleaner agricultural production and sustainable development.
秸秆露天焚烧是农业生产中的常见做法，已被确定与区域性雾霾高度相关。为了减轻空气污染，农业区已经采取了各种秸秆露天焚烧控制措施，但这些措施对空气质量改善的贡献难以估计，很少有研究对此进行探讨。本研究以秋收期（PHS）的吉林省为研究区，采用响应面法（RMS）模型结合情景分析，实证评估了秸秆禁烧计划（SOBP）对空气质量改善的贡献，并在 RMS 模型中构建并引入了停滞指数。结果表明，吉林省在 2018 年 PHS 期间实施的 SOBP 有效地减轻了空气污染。在两种情景下，也评估了该计划对空气质量改善的贡献：如果 SOBP 在 2015 年 PHS、2016 年 PHS 和 2017 年 PHS 期间实施，与实际值相比，这些年份的累积 PM 浓度将分别下降 23%、15%和 22%；如果 2018 年 PHS 期间未实施 SOBP，与实际值相比，累积 PM 浓度将增加 10%-14%。研究结果可为决策者评估 SOBP 的环境绩效提供参考，并为建立更清洁的农业生产和可持续发展的科学环境法规提供指导。
