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Spatial and temporal variations of coastlines in northern China (2000-2012)

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文摘 This study examined the spatial distribution of the continent coastline in northern China using remote sensing and GIS techniques, and calculated the fractal dimension of the coastline by box-counting method, with a time span from 2000 to 2012. Moreover, we analyzed the characteristics of spatial-temporal changes in the coastline's length and fractal dimension, the relationship between the length change and fractal dimension change, and the driving forces of coastline changes in northern China. During the research period, the coastline of the study area increased by 637.95 km, at a rate of 53.16 km per year. On the regional level, the most significant change in coastline length was observed in Tianjin and Hebei. Temporally, the northern China coastline grew faster after 2008. The most dramatic growth was found between 2010 and 2011, with an increasing rate of 2.49% per year. The fractal dimension of the coastline in northern China was increasing during the research period, and the most dramatic increase occurred in Bohai Rim. There is a strong-positive linear relationship between the historical coastline length and fractal dimension (the correlation coefficient was 0.9962). Through statistical analysis of a large number of local coastline changes, it can be found that the increase (or decrease) of local coastline length will, in most cases, lead to the increase (or decrease) of the whole coastline fractal dimension. Civil-coastal engineering construction was the most important factor driving the coastline change in northern China. Port construction, fisheries facilities and salt factories were the top three construction activities. Compared to human activities, the influence of natural processes such as estuarine deposit and erosion were relatively small.
来源 Journal of Geographical Sciences ,2014,24(1):18-32 【核心库】
DOI 10.1007/s11442-014-1070-x
关键词 coastline ; fractal dimension ; remote sensing ; spatial-temporal change ; northern China
地址

Institute of Remote Sensing and Digital Earth, CAS, Beijing, 100101

语种 英文
文献类型 研究性论文
ISSN 1009-637X
基金 国家973计划
文献收藏号 CSCD:5033507

参考文献 共 25 共2页

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引证文献 8

1 马建华 中国大陆海岸线随机前分形分维及其长度不确定性探讨 地理研究,2015,34(2):319-327
CSCD被引 13

2 许宁 基于分形维数的环渤海地区海岸线变迁及成因分析 海洋学研究,2016,34(1):45-51
CSCD被引 12

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