Abstract
The article uses GIS spatial analysis and grid technologies to study the dynamic changes, hotspot regions, and driving forces in land use of the central core functional area of Jing-Jin-Ji. The research results are as follows: from 2000 to 2015, the main types of land use in the central core functional area of Jing-Jin-Ji are cultivated land, woodland, and built-up land. In the period of 2005–2010, the transfer between built-up land and cultivated land was frequent. The dynamic degree of single land use in unused land was highest. It also finds out that the dynamic degree of the integrated land use from 2005 to 2010 was higher. The center of gravity transfer of the dynamic degree of integrated land use was concentrated in research area. As for the hotspots, their number and scope are increasing, and the positions located in the edge of original main urban area and developed transportation network. The main characteristics of land use dynamic change in the study area are the rapid decrease of cultivated land area and rapid growth of built-up land. The spatial agglomeration of economic factors caused by human activities has an important influence on the spatial and temporal dynamic changes of land use.
Highlights
Land, the carrier of human activities, is one of the most important natural resources and offers physical space for human being to live in and carry out social, economic, and political activities
It can be seen that the main land categories were arable land, forest land, and builtup land, among which, the arable land was the largest, mainly distributed in the eastern and southern plains of the research region, including the southeastern part of Beijing, Langfang, northern and southern parts of Tianjin, and eastern part of Baoding, which was mainly distributed in rural settlements and around the city, with a great degree of fragmentation
The central core functional area of JingJin-Ji is the key area of coordinated development of JingJin-Ji, which is a hotspot region of land use dynamic change
Summary
The carrier of human activities, is one of the most important natural resources and offers physical space for human being to live in and carry out social, economic, and political activities. Land use/cover change (LUCC) is a key basis for studying natural resource management, climate change [1,2,3,4], and urban planning and a major impact factor for environmental assessment [5, 6]. It is closely connected with population migration and economic activities [7]. The high precision land use dynamic change detection can provide basic data for the research of interaction relationship between human being and the nature [9,10,11,12,13]. LUCC research of varying spatial scales has drawn wide attention at home and abroad [16,17,18,19,20,21,22,23,24,25]
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