Remote sensing monitoring and spatial-temporal variation of Bohai Bay coastal zone

doi:10.6046/gtzyyg.2013.02.26

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Abstract

Rapid industrialization and urbanization have resulted in extensive changes in land use and coastlines in Bohai Bay coastal zone. For extraction of coastlines and land classification, Landsat TM\ETM images in 2000, 2005 and 2010 were used. Based on the methods of man- machine interactive interpretation and GIS spatial analysis, the authors made a comprehensive analysis of the changes of the coastlines and spatial variation of land use. The extent, speed and spatial variation of the changes of the coastlines and land use were revealed by the combined method of quantitative and qualitative analysis. It can be concluded that Bohai Bay coastal zone had been changed greatly during the last decade. The land and coastlines were growing toward the Bohai Sea by about 322 km<sup>2</sup> and 331.6 km<sup>2</sup>, respectively. Land for housing and other construction purposes increased; unused land and wetlands decreased greatly; Tianjin Port showed the most significant sea-beach wetland change, and the decrease reached 89 percent as compared with the situation in 2000; in other wetlands such as salt pans of Hangu in Bohai Bay the decline rate was the largest (55 percent); the coastline and the land of Tianjin Port had the fastest growing rate during 2000-2005; from 2005 to 2010 the reclamation of Caofeidian Port was the fastest. The main driver of these changes is the result of over-exploitation of human economic activities.

Keywords high radiation resolution remote sensing image(HRRRSI) gradient domain dynamic range compression

TP79

Issue Date: 28 April 2013

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	WANG Zhenguo
	LI Shaomin
	QU Guangbing

Cite this article:

WANG Zhenguo,LI Shaomin,QU Guangbing. Remote sensing monitoring and spatial-temporal variation of Bohai Bay coastal zone[J]. REMOTE SENSING FOR LAND & RESOURCES, 2013, 25(2): 156-163.

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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2013.02.26 OR https://www.gtzyyg.com/EN/Y2013/V25/I2/156

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