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[1]ZHANG Wenhui,ZHOU Zhongfa,ZHANG Shu,et al.Spatiotemporal Distribution Characteristics of Human Activities in FAST Electromagnetic Wave Quiet Zone[J].Research of Soil and Water Conservation,2021,28(04):275-283.

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Spatiotemporal Distribution Characteristics of Human Activities in FAST Electromagnetic Wave Quiet Zone

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 28 Number of periods: 2021 04 Page number: 275-283 Column: Public date: 2021-08-10

Title:: Spatiotemporal Distribution Characteristics of Human Activities in FAST Electromagnetic Wave Quiet Zone

Author(s):: ZHANG Wenhui^1,2, ZHOU Zhongfa^1,2, ZHANG Shu^1,2, HUANG Denghong^1,2; (1.School of Geography and Environmental Science/Institute of Karst Science, Guizhou Normal University, Guiyang 550001, China; 2.State Engineering Technology Institute for Karst Desertification Control, Guiyang 550001, China)

Keywords:: human activity intensity; spatiotemporal evolution; topographic gradient; land use; FAST electromagnetic wave quiet zone

CLC:: F301.24;C912.8

DOI:: -

Abstract:: In order to explore the temporal and spatial distribution characteristics of human activities in the FAST electromagnetic wave quiet zone, the 2008, 2011, 2013 and 2017 four phases of Landat8 images were used as the data source, combining with spatial autocorrelation analysis, topographic position index, topographic distribution index and other methods, from land use and the change angle of human activity intensity(HAILS), we analyzed the temporal and spatial evolution characteristics and influencing factors of human activities in the quiet zone of FAST electromagnetic waves. The results show that:(1)grassland and woodland were the main land types, construction land and grassland showed an increasing trend, and cultivated land, woodland and water areas all showed a decreasing trend;(2)the year of 2011 was taken as the boundary, the intensity of human activities showed a first decrease and then an increase as a whole, there was significant spatial agglomeration, mainly concentrated in remote areas and intermediate areas;(3)human activities were greatly affected by topographic factors, and their intensity decreased with the rise of topographic gradients, and construction land mainly distributed in low-topographic gradient regions(grades Ⅰ to Ⅱ), woodland mainly distributed in high topographically graded regions(grades Ⅴ to Ⅵ), while grassland, cultivated land, and waters mostly concentrated in low-to-medium topographic gradient regions(grades Ⅰ to Ⅳ). In general, the distribution and changes of human activities in the study area mainly concentrated in the middle and remote areas, and were mainly driven and influenced by comprehensive factors such as FAST project construction, immigration activities, economic development, government policies and topographic factors.

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Last Update: 2021-08-20