As China enters the new normal era, the existing mode of joining into the global production network is confronted with the dual dilemma of internal dividend disappearance and external trade frictions. It is very important to explore the characteristics and driving forces of dynamic evolution of industrial linkages between China and other countries or regions in the world. Based on the world input-output table database from 1995 to 2014, this study depicts the global industrial interdependence network from the national scale using input—output analysis and social network analysis, and focuses on the evolution of China's role and position in this pattern using spatial econometric model. The main findings are as follows: China has become a bridge between East Asia and Southeast Asia and other emerging markets, thus upgrading from an "outsider" to an important hub in the industrial network linking Europe and the United States. However, from 2015 to 2019, the expansion of China's foreign industrial linkages has gradually reached a plateau. From the perspective of supply side, China's resource and manufacturing industries are constantly embedded in the supply side of the global production network. However, the overall external supply capacity of most China's service industry is relatively below global average. In terms of demand, China, as the "factory of the world" and a major country in infrastructure construction, has an increasing global influence in manufacturing and infrastructure. Nevertheless, the international influence of productive services like Transportation, Logistics and Finance has been declining since 2005. The Chinese industries obtain the local added value overall to continue to grow, but the efficiency of the added value capture is low. On this basis, this study explores the influence of multi-dimensional proximities and trade protectionism on China-global industrial linkages and their value added. Among them, the geographical and cognitive proximity has the most extensive influence, while the social and institutional proximities only promote and strengthen the intermediate production linkage with more complex forms of industrial linkages and final demand linkages. However, technical barriers and anti-dumping investigation have weakened China's foreign industrial links. The sanitary and phytosanitary measures have a significant weakening effect on the final demand linkage, but not on the intermediate product production. To sum up, the upgrading of production-oriented service industry and the efficiency of the acquisition of overall added value are the potential directions for the expansion of China's foreign industrial linkages, while the construction of domestic industrial cycle and industrial diversification are the reasonable measures for the expansion of China's foreign industrial linkages.

China is in the critical period of transforming from the oil and gas era to the renewable energy era. The changes of China's energy demand structure and energy utilization form determine that the energy interaction logic between China and the rest of the world has undergone profound changes. In order to better understand the process of energy interaction between China and the rest of the world, this study discusses the basic theoretical cognition of global energy interaction, and analyzes the pattern and changes of energy interaction between China and the rest of the world with the help of complex network, multi-region input-output analysis and other technical methods. It is found that the scope of energy interaction between China and the rest of the world is expanding and deepening. China has gradually shaped a diversified world energy map, converting from oil and gas to renewable energy trade, from oil and gas based investment to diversified energy investment, and from conventional energy trade to embodied energy trade. The main conclusions are as follows. (1) The coal-based energy production structure and the huge demand for oil and gas determine that ensuring overseas oil and gas supply is the most direct logic of energy interaction between China and the rest of the world, and the interaction areas are mainly concentrated in oil and gas rich countries and regions. (2) With the development of renewable energy, the logic of energy interaction between China and the rest of the world has changed from oil and gas to renewable energy related products trade. With the comparative advantages in China's manufacturing, the scope of interaction has expanded from countries and regions rich in oil and gas to countries with global renewable energy development and installation needs, forming a renewable energy trade map covering major countries and regions in the world. (3) China's overseas energy investment target has expanded from a limited number of host countries to other regions such as Europe and Southeast Asia. The investment business is not only limited to the oil and gas field, but also has expanded to solar energy, wind energy, hydropower and other renewable electricity generation projects. (4) China is a global manufacturing and trading power. Under the background of deepening globalization, part of China's energy is embodied the global production network and trade network for redistribution. The scope of energy interaction between China and the world is further expanded to countries with general commodity trade relations with China, forming the global "energy hub" function. This study can provide a theoretical perspective and decision-making basis for deeply understanding the energy interaction between China and the world, ensuring national energy security and participating in global energy economic governance.

From the perspective of economic geography, this paper studies the changing spatial pattern of world economy and China's role in different waves of economic globalization. Firstly, this study finds that the geographical pattern of world economy changes from "core-periphery" to "chain-reconfiguration", and to current "network-imbalance". Meanwhile the driving force of economic globalization shifts from "trade globalization" to "manufacturing globalization". At present, "multiple globalization" is involving into a new engine to driving the development of economic globalization. We then discuss that how China changes its role in economic globalization by changing modes of strategic coupling. We argue that the role transition of China breaks the traditional developing path which developed countries set for developing countries and theoretical spatial order put forward by classical industry gradient transfer, bringing new restructuring power and possibility for changing pattern of globalization. Finally, we discuss the impacts of COVID-19 pandemic on the development of economic globalization and the development trend of economic globalization in the post-pandemic era. Based on the analysis, we come up with some suggestions regarding to the potential development paths of China under the background of economic globalization.

Patent transfer is an important channel for countries and regions to obtain technology from abroad, and it is also the most direct way to portray the relationship between supply and demand of technology flow. Based on the glocalisation perspective, this paper constructs a framework of technology transfer characterized by the transnational-domestic dual-channel theory. Combining social networks, GIS spatial analysis and spatial measurement models, it attempts to describe the spatial evolution and determining factors of transnational technological channels in Chinese cities. The research found that: (1) The spatial heterogeneity of China's transnational technology channel network is significant but gradually has weakened over time. (2) The transnational technology channel accelerates eastward movement, expanding from the technologically developed regions of North America and Western Europe (the New York Bay Area and Silicon Valley, the Caribbean offshore financial center, the London offshore financial center, etc.) to East Asia and Southeast Asia (Japan, South Korea and Singapore), China's technological dependence on the United States and Western Europe has been greatly reduced. (3) The Beijing-Tianjin-Hebei urban agglomeration, the Yangtze River Delta urban agglomeration, the Guangdong-Hong Kong-Macao Greater Bay Area and the northern Taiwan urban agglomeration with Beijing, Shanghai, Shenzhen-Guangzhou, Taipei-Hsinchu as the cores have become global technological innovation centres and hubs for transnational technology transfer flows. With the help of connections between headquarters and branch of multinational companies, offshore financial convenience and low tax advantages, Hong Kong mainly plays the role of technology intermediary and has become the city with the most technology transfer, while the core role of Taiwan Province is declining. (4) Intercity technology pipelines have a positive effect on transnational technology transfer pipelines. Enlarging the scale and flow of technology pipelines between cities and the distance between cities is conducive to expanding transnational technology introduction pipelines, while the intermediary of cities has no significant impact. In addition, the economic strength of a city has a positive influence on the promotion of transnational technology transfer pipelines, while technological strength and foreign economic relations have multiple effects.

In recent decades, the global land cover has undergone drastic changes, and the impact of human activities on land cover change has become one of the most significant features of the "Anthropocene". The core tasks of coping with global "unprecedented changes in a hundred years" for China in the field of sustainable development is to scientifically assess the spatio-temporal process and new trends of global land cover change, analyze China's role and status in it, and propose optimal paths. We used geospatial analysis method and multi-source land cover data to explore the spatio-temporal process of global land cover change, analyze the transformation relationship between land types and the change trend of global "greening" and forest cover, and reveal the new characteristics and trends of land cover change in China. The results showed that the global land cover experienced significant changes from 1992 to 2015, and several hot spots formed, including central South America, sub-Saharan Africa, Central Asia, Southeast Asia and East Asia. China's forest coverage rate increased from 12.98% in 1990 to 23.34% in 2020, and the wetland area increased by 1908 km², which contributed to the maintenance of global ecological security. The interactive conversion between cultivated land and forest is the most important land cover conversion relationship in the world. In terms of cultivated land occupied by urban land, China ranks first in the world, with an area of 73000 km². The global leaf area index presented a global trend of significant increase from 1999 to 2019. With only 6.6% of the world's vegetation area, China contributed about 20% of the global increase in leaf area index and dominated the global "greening" process. The change of global forest coverage presents remarkably spatial agglomeration. China's forest area increased by 62.8376 million hectares (1990-2020), leading the world in forest restoration. The southwest China forest region and the Qinling-Daba mountains are the main areas of forest growth, and the Yangtze River Delta, the Guangdong-Hong Kong-Macao Greater Bay Area and parts of eastern Inner Mongolia are the main areas of deforestation. In the future, China should further enhance the balance and coordination between socioeconomic development and ecological protection, continue to promote the building of a beautiful China, and contribute more strengths and experiences to global ecological security and sustainable development.