Abstract
As a typical rapid-development seaport area in coastal cities, such as Caofeidian, the study on the spatiotemporal changes of urban land use and its surrounding rural areas is valuable and significant in reference to the future urban planning and land policies in similar coastal areas of China or other countries. Based on satellite images, this research processes images in different years for summarizing the changes of vegetation, urban areas, and water areas in Caofeidian and the suburbs. This research aims to summarize the experience of the coastal city in the process of sustainable development by analyzing the dynamic trends and driving factors of land use spatial and temporal changes in the target area so that it provides a reference for the long-term development of the city. Meanwhile, it also hopes to give support for refining and improving the spatiotemporal analysis method for sustainable urban land use through the experiment. Due to the appearance of the results of the abnormal data, in the experiment process, this article adopts a comparative experiment to avoid the error of the analysis result and to find out the reason. The results show that the urban area for construction increased rapidly in the past twenty years, which is mainly affected by factors, such as economic development, policy guidance, environmental awareness, and environmental protection measures, especially guided by policies. Thus, coastal cities should stretch the planning of sustainable development from the three aspects combining with local characteristics. Besides, phenological phenomena and crops harvest time tremendously affect the images and calculation. The selection of remotely-sensed images should fully consider the characteristics of urban and rural locations, especially the impact of local phenological phenomena. The results of the analysis provide reference value and support for sustainable urban land management and development in the study area and other coastal cities.
Highlights
Land resources are the basic space resources for human-being survival and development, and they are inextricably linked with human production activities and economic activities [1]
Through the dynamic landscape changes reflected by satellite images, policymakers, land planners, and investors or others can make decisions on further actions according to the development characteristics and trends of the region [4,5,6,7]
Vegetation area is set in the color of green, the urban area is set in red, and water is in blue (Figure 4)
Summary
Land resources are the basic space resources for human-being survival and development, and they are inextricably linked with human production activities and economic activities [1]. With the economic development and population growth, the demands for construction land are on the rise. From the perspectives of multidisciplinary and nature, it will support the protection of coastal urban environment and biodiversity, and the impacts of the control and reduction of the disasters on the local area. This is in line with the concept of green infrastructure and the advocacy of sustainable land management and development [8,9,10,11]
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