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[1]FENG Tao,SHI Peiji,ZHANG Xuebin,et al.Competition and Eco-environmental Effect of Ecological-Production-Living Spaces in Valley City[J].Research of Soil and Water Conservation,2021,28(03):229-234.

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Competition and Eco-environmental Effect of Ecological-Production-Living Spaces in Valley City

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 28 Number of periods: 2021 03 Page number: 229-234 Column: Public date: 2021-04-20

Title:: Competition and Eco-environmental Effect of Ecological-Production-Living Spaces in Valley City

Author(s):: FENG Tao^1,2, SHI Peiji^1,2, ZHANG Xuebin^1,2, LIU Chunfang^2,3, ZHANG Weiping^1,2; (1.College of Geography and Environment Science,Northwest Normal University,Lanzhou730070,China;2.Land Use and Comprehensive Improvement Engineering Research Center,Development and Reform Commission of Gansu Province,Lanzhou 730070,China;3.College of Social Development and Public Administration,Northwest Normal University,Lanzhou730070,China)

Keywords:: ecological-production-living spaces; eco-environmental effect; valley cities; Lanzhou City

CLC:: F301.2

DOI:: -

Abstract:: Under the constraint of regional space, the space competition of different function land and the change of ecological environment have the profound impacts on the healthy development of valley cities. Lanzhou City in the upper reaches of the Yellow River was taken as an example to analyze the land competition pattern of valley cities in the process of urbanization and reveal its ecological environment effect and contributing factors according to the classification based on the dominant function of ecology-production-living spaces, based on the land use and DEM data in 1995 and 2018, and using the methods include intensity of area change, type transfer matrix, centroids transfer, alt-slope differentiation, ecological environment quality index and ecological contribution rate of land use function transformation. The results show that:(1)the living space and industrial-mining production space in the urban area expanded rapidly with the centroids moving to the north greatly and showed a significant effect of slope-climbing which was influenced by the three-dimensional development of the main urban area and the construction of Lanzhou new area;(2)the ecological space of forestland, water area and bare land increased at different degrees, and the ecological space of grassland shranked significantly;(3)the overall ecological environment quality of Lanzhou City showed a pattern of ‘high in the south, low in the north' while the ecological improvement area was only 50.76% of the deterioration area; the conversion of cropland and grassland was the main contributing factor to the change of ecological environment quality. The study of land transformation and ecological environment effect based on the spatial competition of ecological-production-living can provide a basis for the optimization of land spatial pattern in valley cities.

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Last Update: 2021-04-20