科研之友
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摘要
Water shortage, unmatched combination of resources and unbalanced regional development are acute problems in northwest China. This region has a strategic location in promoting coordinated regional development, communicating international and domestic markets, adjusting economic structure and building ecological barriers. Therefore, the construction of eco-economic pivotal zones in northwest China would contribute to relieving the eco-environmental dilemma and improving the level of regional ecological security, which has a positive influence on the national economic development. Based on the analysis of human-environment interaction, urban agglomeration and development system, population distribution and ethnic composition in northwest China under the "Three Water Lines" pattern, this study firstly interprets the basic connotation of the eco-economic pivotal zones in this region. We propose that the eco-economic pivotal zone is a strategic area for national and global man-land coordination, which could be defined from the perspectives of ecological function zone, economic hub zone, cultural integration zone and deep-land passage zone. Based on the needs of national macro-strategic layout and land-sea coordination, we clarify the multi-functional orientations of eco-economic pivotal zones. Furthermore, this paper constructs a comprehensive development pattern in northwest China under "Three Water Lines" strategy, which is composed of 9 urban growth poles, 71 city nodes, 4 development axes and 4 eco-economic pivotal zones. And the construction layout as well as the development paths of Hexi, Lanzhou-Xining, north slope of Tianshan Mountains and circum-Tarim Basin eco-economic pivotal zones are also proposed. Finally, this paper discusses the interactive mode between the eco-economic pivotal zones and China's national development strategy layout, which would help the formation of a new pattern of development in western China, and provide a scientific basis for a better understanding of the Belt and Road Initiative.
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