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关键词： 攻坚战   河西走廊   总林长令   三北工程  

摘要： 日前，甘肃省发布2025年第2号总林长令——《关于全力以赴推动“三北”工程攻坚战取得重要成果的令》，要求各级林长着力推动“三北”工程重大项目高质量建设，确保我省河西走廊-塔克拉玛干沙漠边缘阻击战和黄河“几字弯”攻坚战两大标志性战役取得重要成果。甘肃省是全国“三北”工程建设主战场之一，工程建设范围广泛，涉及12个市州的70个县（市、区），总面积达36.14万平方公里，占全省国土总面积的85%。依据国家《“三北”工程六期规划》，河西5市的20个县（市、区）被纳入河西走廊-塔克拉玛干沙漠边缘阻击战范围，陇中、陇东5市的28个县（市、区）被纳入黄河“几字弯”攻坚战范围，其余22个县（市、区）则全部进入协同推进区。

关键词： Biochemical engineering  

摘要： Bio-based materials are recognized as a critical enabler for advancing chemical engineering advanced materials toward industrial upgrading and transformation. This article focused on the fermentation methodologies employed in the production of bio-based materials and systematically summarized their progress across raw material, process, and product domains. The study also examined the technological barriers and challenges associated with the iterative updates of second-generation and third-generation carbon sources within the biomanufacturing industry. It proposed the construction of a multidimensional biomass carbon source supply system and guarantee mechanism. The article delved into the fermentation process technology for key polymer monomers such as ethylene glycol, 1,3-propanediol, 1,4-butanediol, succinic acid, adipic acid, and terephthalic acid, as well as polymer materials including polylactic acid, polyhydroxyalkanoates, hyaluronic acid, and bacterial cellulose. The study outlined four critical modules: bio-based plastics, bio-based rubbers, bio-based nylon, and bio-based polysaccharide materials. It advocated for enhancing the product system of bio-based materials through fermentation methods to gradually replace petrochemical-based materials, paving the way for future advancements in the field. © 2025 Chemical Industry Press Co., Ltd.. All rights reserved.

关键词： Metabolic engineering  

摘要： The microbial fermentation of one-carbon (C1) gases to produce biofuels and chemicals represents a key pathway for carbon resource capture, utilization, and green biomanufacturing. One-carbon feedstocks, such as CO, CO2, methane, methanol, and formic acid, are characterized by their single-carbon atom composition. These resources are abundant, low-cost, and hold potential as alternative feedstocks for biomanufacturing. Additionally, their bioconversion contributes to mitigating the greenhouse effect and supports the achievement of carbon neutrality goals. This article reviews recent progress in microbial refining of CO2 to produce essential organic acids and alcohols, elaborates on the biological metabolic pathways of CO2 and product synthesis, discusses the genetic engineering of microorganisms in C1 biorefining, and envisions future pathways for green biomanufacturing. © 2025 Chemical Industry Press Co., Ltd.. All rights reserved.

摘要： 钢琴作为一种典型的西方乐器，在传入我国后，历经数百年发展，其艺术影响不断扩大，打下了深厚的钢琴本土化基础。这一过程中，很多创作者不断尝试将西方乐曲和本土音乐相融合，为钢琴曲目创编和演奏表达开辟了新的领域，进一步促进了钢琴艺术的发展。近年来，传承和发扬中华民族优秀传统文化逐渐成为社会共识，为民族音乐文化在钢琴曲目中的融合与演奏表达提供了良好的文化氛围。在音乐作品中融入民族音乐文化，既能够增强音乐作品的个性特点，深化音乐作品的内涵，增强其艺术表现力和感染力，也能够助力优秀民族音乐的传播。钢琴是音乐艺术的重要门类，也需将民族音乐文化融入到钢琴曲目的创编和演奏中，