Int. J. Environ. Res. Public Health 2012, 9(11), 3843-3865; doi:10.3390/ijerph9113843
Article

Examining Land-Use/Land-Cover Change in the Lake Dianchi Watershed of the Yunnan-Guizhou Plateau of Southwest China with Remote Sensing and GIS Techniques: 1974–2008

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Received: 28 August 2012; Accepted: 15 October 2012 / Published: 24 October 2012
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Monitoring land-use/land-cover change (LULCC) and exploring its mechanisms are important processes in the environmental management of a lake watershed. The purpose of this study was to examine the spatiotemporal pattern of LULCC by using multi landscape metrics in the Lake Dianchi watershed, which is located in the Yunnan-Guizhou Plateau of Southwest China. Landsat images from the years 1974, 1988, 1998, and 2008 were analyzed using geographical information system (GIS) techniques. The results reveal that land-use/land-cover has changed greatly in the watershed since 1974. This change in land use structure was embodied in the rapid increase of developed areas with a relative change rate of up to 324.4%. The increase in developed areas mainly occurred in agricultural land, especially near the shores of Lake Dianchi. The spatial pattern and structure of the change was influenced by the urban sprawl of the city of Kunming. The urban sprawl took on the typical expansion mode of cyclic structures and a jigsaw pattern and expanded to the shore of Lake Dianchi. Agricultural land changed little with respect to the structure but changed greatly in the spatial pattern. The landscape in the watershed showed a trend of fragmentation with a complex boundary. The dynamics of land-use/land-cover in the watershed correlate with land-use policies and economic development in China.
Keywords: Yunnan-Guizhou plateau; Lake Dianchi; land-use/land-cover change (LULCC); remote sensing; geographical information system (GIS); Landsat
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MDPI and ACS Style

Zhao, Y.; Zhang, K.; Fu, Y.; Zhang, H. Examining Land-Use/Land-Cover Change in the Lake Dianchi Watershed of the Yunnan-Guizhou Plateau of Southwest China with Remote Sensing and GIS Techniques: 1974–2008. Int. J. Environ. Res. Public Health 2012, 9, 3843-3865.

AMA Style

Zhao Y, Zhang K, Fu Y, Zhang H. Examining Land-Use/Land-Cover Change in the Lake Dianchi Watershed of the Yunnan-Guizhou Plateau of Southwest China with Remote Sensing and GIS Techniques: 1974–2008. International Journal of Environmental Research and Public Health. 2012; 9(11):3843-3865.

Chicago/Turabian Style

Zhao, Yaolong; Zhang, Ke; Fu, Yingchun; Zhang, Hong. 2012. "Examining Land-Use/Land-Cover Change in the Lake Dianchi Watershed of the Yunnan-Guizhou Plateau of Southwest China with Remote Sensing and GIS Techniques: 1974–2008." Int. J. Environ. Res. Public Health 9, no. 11: 3843-3865.


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