为探究长江江豚种群分布与水下噪声的关系,研究于2021年江苏镇江长江豚类省级自然保护区针对长江江豚自然种群和水下噪声进行了3个水期连续调查。结果表明保护区目视调查长江江豚数量共计46头次,声学拖曳式水下高频声音事件记录仪记录...为探究长江江豚种群分布与水下噪声的关系,研究于2021年江苏镇江长江豚类省级自然保护区针对长江江豚自然种群和水下噪声进行了3个水期连续调查。结果表明保护区目视调查长江江豚数量共计46头次,声学拖曳式水下高频声音事件记录仪记录数量共33头,固定式水下高频声音事件记录仪记录发声事件共2253次,其种群分布具有明显的时空差异;水下噪声强度较高,均方根声压级(SPL_(rms))中值为133.80 dB re 1μPa,90%声压级在125.77—137.42 dB re 1μPa,比水下背景噪声平均高11.50 dB,差值最大可达31.12 dB,水下噪声也具有明显的时空差异;将长江江豚种群分布与水下噪声强度叠加分析,显示二者呈明显的负相关关系,此外人类活动产生的水下噪声24h累计加权声暴露级(SEL_(cumw))超过长江江豚暂时性听力阈移(TTS)的阈值,长时间暴露在高强度噪声下,可能会使其听力下降,甚至造成永久性的损伤。研究可为减缓水下噪声污染提供数据指导,为保护区长江江豚保护和栖息地修复工作提供数据支撑。展开更多
在数字技术全面融入经济发展的背景下,数字经济日益成为推动企业高质量发展的重要力量。本文基于2012~2021年江苏省制造业上市公司数据,探究数字经济对企业高质量发展的影响及机制。研究发现,数字经济显著促进了企业高质量发展,同时市...在数字技术全面融入经济发展的背景下,数字经济日益成为推动企业高质量发展的重要力量。本文基于2012~2021年江苏省制造业上市公司数据,探究数字经济对企业高质量发展的影响及机制。研究发现,数字经济显著促进了企业高质量发展,同时市场竞争程度对这一过程产生正向调节效应。经多种稳健性检验,结论依然成立,为推动数字经济与企业发展政策提供重要理论依据。Against the backdrop of the comprehensive integration of digital technology into economic development, the digital economy is increasingly becoming an important force in promoting high-quality development of enterprises. This article is based on data from manufacturing listed companies in Jiangsu Province from 2012 to 2021, exploring the impact and mechanism of the digital economy on the high-quality development of enterprises. Research has found that the digital economy significantly promotes high-quality development of enterprises, while the level of market competition has a positive moderating effect on this process. After multiple robustness tests, the conclusion still holds, providing an important theoretical basis for promoting policies related to digital economy and enterprise development.展开更多
随着互联网科技的快速发展和全球贸易的不断加深,跨境电商已成为江苏省对外贸易的重要经济增长点,新质生产力的引入和应用成为跨境电商的新对标。基于此,对新质生产力赋能江苏省跨境电商策略进行研究,有利于江苏省跨境电商在新的时代背...随着互联网科技的快速发展和全球贸易的不断加深,跨境电商已成为江苏省对外贸易的重要经济增长点,新质生产力的引入和应用成为跨境电商的新对标。基于此,对新质生产力赋能江苏省跨境电商策略进行研究,有利于江苏省跨境电商在新的时代背景下实现高质量发展,进一步提升江苏省在全球贸易中的影响力和竞争力。本文简述了新质生产力给江苏省跨境电商带来的机遇及发展面临的主要问题,并在此基础上提出了以新质生产力为核心动力,在构建电商产业生态圈、提升企业创造力和内生动力、系统性培养跨境电商人才上共同发力推动江苏省跨境电商发展,期望能为江苏省跨境电商的高质量发展提供参考与启示。With the rapid development of Internet technology and the deepening of global trade, cross-border e-commerce has become an important economic growth point for Jiangsu Province’s foreign trade, and the introduction and application of new quality productivity has become a new counterpoint for cross-border e-commerce. Based on this, the research on the strategy of cross-border e-commerce empowered by the new quality productivity in Jiangsu Province is conducive to the realization of high-quality development of cross-border e-commerce in Jiangsu Province in the context of the new era, and to further enhance the influence and competitiveness of Jiangsu Province in the global trade. This paper briefly describes the opportunities brought by the new quality productivity to cross-border e-commerce in Jiangsu Province and the main problems faced by the development, and on this basis proposes to take the new quality productivity as the core driving force, and make a concerted effort to promote the development of cross-border e-commerce in Jiangsu Province by building the e-commerce industrial ecosystem, enhancing enterprises’ creativity and endogenous driving force, and systematically cultivating talents in cross-border e-commerce. It is expected to provide reference and inspiration for the high-quality development of cross-border e-commerce in Jiangsu Province.展开更多
文摘为探究长江江豚种群分布与水下噪声的关系,研究于2021年江苏镇江长江豚类省级自然保护区针对长江江豚自然种群和水下噪声进行了3个水期连续调查。结果表明保护区目视调查长江江豚数量共计46头次,声学拖曳式水下高频声音事件记录仪记录数量共33头,固定式水下高频声音事件记录仪记录发声事件共2253次,其种群分布具有明显的时空差异;水下噪声强度较高,均方根声压级(SPL_(rms))中值为133.80 dB re 1μPa,90%声压级在125.77—137.42 dB re 1μPa,比水下背景噪声平均高11.50 dB,差值最大可达31.12 dB,水下噪声也具有明显的时空差异;将长江江豚种群分布与水下噪声强度叠加分析,显示二者呈明显的负相关关系,此外人类活动产生的水下噪声24h累计加权声暴露级(SEL_(cumw))超过长江江豚暂时性听力阈移(TTS)的阈值,长时间暴露在高强度噪声下,可能会使其听力下降,甚至造成永久性的损伤。研究可为减缓水下噪声污染提供数据指导,为保护区长江江豚保护和栖息地修复工作提供数据支撑。
文摘在数字技术全面融入经济发展的背景下,数字经济日益成为推动企业高质量发展的重要力量。本文基于2012~2021年江苏省制造业上市公司数据,探究数字经济对企业高质量发展的影响及机制。研究发现,数字经济显著促进了企业高质量发展,同时市场竞争程度对这一过程产生正向调节效应。经多种稳健性检验,结论依然成立,为推动数字经济与企业发展政策提供重要理论依据。Against the backdrop of the comprehensive integration of digital technology into economic development, the digital economy is increasingly becoming an important force in promoting high-quality development of enterprises. This article is based on data from manufacturing listed companies in Jiangsu Province from 2012 to 2021, exploring the impact and mechanism of the digital economy on the high-quality development of enterprises. Research has found that the digital economy significantly promotes high-quality development of enterprises, while the level of market competition has a positive moderating effect on this process. After multiple robustness tests, the conclusion still holds, providing an important theoretical basis for promoting policies related to digital economy and enterprise development.
文摘随着互联网科技的快速发展和全球贸易的不断加深,跨境电商已成为江苏省对外贸易的重要经济增长点,新质生产力的引入和应用成为跨境电商的新对标。基于此,对新质生产力赋能江苏省跨境电商策略进行研究,有利于江苏省跨境电商在新的时代背景下实现高质量发展,进一步提升江苏省在全球贸易中的影响力和竞争力。本文简述了新质生产力给江苏省跨境电商带来的机遇及发展面临的主要问题,并在此基础上提出了以新质生产力为核心动力,在构建电商产业生态圈、提升企业创造力和内生动力、系统性培养跨境电商人才上共同发力推动江苏省跨境电商发展,期望能为江苏省跨境电商的高质量发展提供参考与启示。With the rapid development of Internet technology and the deepening of global trade, cross-border e-commerce has become an important economic growth point for Jiangsu Province’s foreign trade, and the introduction and application of new quality productivity has become a new counterpoint for cross-border e-commerce. Based on this, the research on the strategy of cross-border e-commerce empowered by the new quality productivity in Jiangsu Province is conducive to the realization of high-quality development of cross-border e-commerce in Jiangsu Province in the context of the new era, and to further enhance the influence and competitiveness of Jiangsu Province in the global trade. This paper briefly describes the opportunities brought by the new quality productivity to cross-border e-commerce in Jiangsu Province and the main problems faced by the development, and on this basis proposes to take the new quality productivity as the core driving force, and make a concerted effort to promote the development of cross-border e-commerce in Jiangsu Province by building the e-commerce industrial ecosystem, enhancing enterprises’ creativity and endogenous driving force, and systematically cultivating talents in cross-border e-commerce. It is expected to provide reference and inspiration for the high-quality development of cross-border e-commerce in Jiangsu Province.
