Abstract
The construction land includes the urban land, rural residential areas and other construction land. The Wanjiang City Belt along the Yangtze River is an important demonstration area for undertaking industrial transfer in China. With the accumulation of factors relative to economic development, the construction land has increased sharply, and the regional ecological security pattern is facing new challenges. After collecting the image interpretation data of multi-period land use of the Wanjiang City Belt, the work studied the characteristics of construction land change pattern since 1995 and its driving mechanism based on the GIS platform, land use transfer matrix, expansion intensity index, hotspot analysis and mathematical statistics. The results showed that: (1) From 1995 to 2015, the urban land and other construction land in the Wanjiang City Belt have increased, but the rural residential areas decreased in 2010-2015. The three types of land had the largest changes in 2005-2010 and the change in the other construction land was particularly prominent. (2) The hotspots for construction land expansion are mainly in urban areas with rapid economic development such as Hefei, Wuhu, Ma’anshan and Tongling, where the land use changes most severely. (3) The driving factors for the change of construction land area include natural and social factors. Among social and economic factors, the GDP, industrial added value, secondary output value and urbanization rate are the main driving forces for changes. In the past 20 years, the construction of China’s Undertaking Industrial Transfer Demonstration Area has changed the land optimal allocation and intensive use mode in the region, providing the basis for resource development and utilization, economic development and industrial structure adjustment.
Highlights
A country and region will undergo a process of rapid industrialization and urbanization on the way to modernization
The maximum change rate of urban land and other construction land area appears in the C period, while the rural residential area is in the A period
The urban land area of the Wanjiang City Belt increased in small range in most areas from 1995 to 2005, and was less than 100 hectares
Summary
A country and region will undergo a process of rapid industrialization and urbanization on the way to modernization. (2) The hotspots for construction land expansion are mainly in urban areas with rapid economic development such as Hefei, Wuhu, Maanshan, and Tongling, where the land-use changes most severely. In the process of expansion intensity, hotspot area and spatial transformation process, the work analyzed the evolution trend and reasons of construction land in the Wanjiang City Belt from 1995 to 2015.
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