Abstract
Based on the land utilization data of the Lanzhou-Xining urban agglomerations in 2000, 2005, 2010 and 2015, using the methods of transfer matrix, the paper makes a quantitative analysis of the spatial and temporal evolution process, characteristics and laws of various types of national land space from 2000 to 2015. The results are as follows. 1) Urban construction space, industrial and mining construction space and rural living space continued to increase, while agricultural production space showed a decreasing trend, and green ecological space and other ecological space showed an overall increasing trend from 2000 to 2015. 2) The characteristics of national land space transfer are as follows: the transition is relatively active from 2000 to 2005 and from 2010 to 2015, mainly from green ecological space and agricultural production space to urban construction space, rural living space and industrial and mining construction space.
Highlights
Urbanization is the process of population concentration in cities and towns and promotes the development of cities and towns [1], and it is the inevitable outcome of the development of industrialization to a certain stage
As the main form of urbanization and an important carrier of modernization construction, urban agglomeration gathers important resources, industries and economy in specific regions, and becomes a key regional spatial form to realize the intensive utilization of regional spatial resources and promote the sustainable development of urbanization in the new era
Unreasonable land use structure and methods, deterioration of environmental quality and deterioration of the ecological environment in the process of urbanization, will inevitably have a significant impact on the structure and landscape pattern of territorial spatial development, which restricts the sustainable development of human existence and the harmony and stability of social economy
Summary
Urbanization is the process of population concentration in cities and towns and promotes the development of cities and towns [1], and it is the inevitable outcome of the development of industrialization to a certain stage. The Lanzhou-Xining Urban Agglomeration is located in the upper reaches of the Yellow River, between the ecological barrier of the Qinghai-Tibet Plateau and the sand control belt in northern China, its main body includes the relatively dense urban areas in Gansu Province with Lanzhou as the core and the relatively dense urban areas in Qinghai Province with Xining as the core. The population of this region is relatively dense, and the water and soil resources are relatively good, which plays an irreplaceable role in maintaining the overall situation of national security and ecological security in China. The total area of the study area is 155,700 km, including 85,200 km in Gansu, accounting for 18.78% of the land area of Gansu and 72,300 km in Qinghai, accounting for 10.03% of the land area of Qinghai
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