在“碳达峰、碳中和”目标的影响下,我国炼油行业面临转型发展与碳减排的双重挑战。结合能源发展、炼油工业碳排放情况及行业发展趋势来看,传统中小型炼厂应首先从发展氢能,碳捕获、利用与封存(Carbon Capture Utilization and Storage,...在“碳达峰、碳中和”目标的影响下,我国炼油行业面临转型发展与碳减排的双重挑战。结合能源发展、炼油工业碳排放情况及行业发展趋势来看,传统中小型炼厂应首先从发展氢能,碳捕获、利用与封存(Carbon Capture Utilization and Storage, CCUS),节能与提效3个方向进行减碳行动。重点论述了碳减排措施相关技术现状和未来发展潜力,为中小型炼油企业提供碳减排方式参考。展开更多
Wet soil microcosms were established to determine effects of organic matter and nitrate additions on microbial respiration and redox potentials. Organic matter (1%) and nitrate (100 ppm and 200 ppm) treatments were ap...Wet soil microcosms were established to determine effects of organic matter and nitrate additions on microbial respiration and redox potentials. Organic matter (1%) and nitrate (100 ppm and 200 ppm) treatments were applied in factorial combination. Soil pH, redox potential, and CO2 emissions were measured. Data were analyzed by ANOVA for repeated measures and separately by sampling day. Addition of organic matter significantly (P 0.05) and consistently increased CO2 emissions and decreased redox potentials. On Day 42 nitrate significantly (P 0.05) increased redox values. This study indicates a tendency for organic matter to decrease soil redox potential both in absolute terms and relative to the suboxic-anoxic boundary. Our findings portend that additions of organic matter may quickly and markedly decrease soil redox potentials and increase CO2 emissions in wetlands, whereas additions of nitrate may have complex and sporadic effects on redox potentials.展开更多
开展污染物和二氧化碳的协同减排是当前我国推进生态文明建设的关键途径和重要抓手,分析国内外研究热点与趋势,有助于为我国协同减排治理理论研究与实践路径提供参考。运用CiteSpace对Web of Science核心数据库和中国知网的中英文相关...开展污染物和二氧化碳的协同减排是当前我国推进生态文明建设的关键途径和重要抓手,分析国内外研究热点与趋势,有助于为我国协同减排治理理论研究与实践路径提供参考。运用CiteSpace对Web of Science核心数据库和中国知网的中英文相关文献进行梳理分析,探讨该领域研究的发展态势。结果表明:该领域发文量呈上升趋势且有一定阶段性,美国和中国发文量较高,其他发文主要集中于欧美与东亚地区国家;除了环境科学类期刊发文较多外,国外的能源类期刊影响力较大,国内则是经济与管理类期刊有较大影响力;国内外研究关注该领域的应对策略和政策及其效应评估,此外国外研究关注排放模拟,国内研究关注特定行业和区域及减污降碳领域的体制机制构建。未来研究的重点是综合考虑区域协同发展背景及多重环境政策的影响机制,研究减污降碳、协同减排的路径及其政策体系。展开更多
文摘Wet soil microcosms were established to determine effects of organic matter and nitrate additions on microbial respiration and redox potentials. Organic matter (1%) and nitrate (100 ppm and 200 ppm) treatments were applied in factorial combination. Soil pH, redox potential, and CO2 emissions were measured. Data were analyzed by ANOVA for repeated measures and separately by sampling day. Addition of organic matter significantly (P 0.05) and consistently increased CO2 emissions and decreased redox potentials. On Day 42 nitrate significantly (P 0.05) increased redox values. This study indicates a tendency for organic matter to decrease soil redox potential both in absolute terms and relative to the suboxic-anoxic boundary. Our findings portend that additions of organic matter may quickly and markedly decrease soil redox potentials and increase CO2 emissions in wetlands, whereas additions of nitrate may have complex and sporadic effects on redox potentials.
文摘开展污染物和二氧化碳的协同减排是当前我国推进生态文明建设的关键途径和重要抓手,分析国内外研究热点与趋势,有助于为我国协同减排治理理论研究与实践路径提供参考。运用CiteSpace对Web of Science核心数据库和中国知网的中英文相关文献进行梳理分析,探讨该领域研究的发展态势。结果表明:该领域发文量呈上升趋势且有一定阶段性,美国和中国发文量较高,其他发文主要集中于欧美与东亚地区国家;除了环境科学类期刊发文较多外,国外的能源类期刊影响力较大,国内则是经济与管理类期刊有较大影响力;国内外研究关注该领域的应对策略和政策及其效应评估,此外国外研究关注排放模拟,国内研究关注特定行业和区域及减污降碳领域的体制机制构建。未来研究的重点是综合考虑区域协同发展背景及多重环境政策的影响机制,研究减污降碳、协同减排的路径及其政策体系。
