从国际合著论文看中日美科研影响力

Core Viewpoint - The rapid development of China's scientific research capabilities is gaining global attention, with significant increases in international collaboration and publication output, particularly in the context of the Belt and Road Initiative [2][6]. Group 1: International Collaboration and Publication Statistics - From 2021 to 2023, the average number of international co-authored papers was approximately 186,000 for the United States and 143,000 for China, indicating that China's output is approaching that of the U.S. [4][5]. - China has established strong collaborative relationships, ranking in the top 10 for co-authored papers with 81 countries and regions, which is double the number from 2011 to 2013 [6]. - The report highlights that new partners for China include Malaysia and South Africa, primarily from countries involved in the Belt and Road Initiative [6]. Group 2: Impact and Influence of Chinese Research - China ranks first in the number of "highly cited papers," which are considered influential and of high quality, with 67% of citations coming from within China itself [8]. - The global number of papers peaked at approximately 2.1 million in 2022 but decreased to about 2.01 million in 2023, with international co-authored papers also declining from around 580,000 in 2021 to about 530,000 in 2023 [9]. - The decline in global publication numbers is attributed to the COVID-19 pandemic and geopolitical tensions, particularly between China and the U.S. [9].