Technology Application |
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The Remote Sensing Dynamic Monitoring of the Evolution of Shoreline and Mangrove Wetlands in the Zhujiang River Estuary in the Past 30 Years |
ZHAO Yu-Ling |
China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China |
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Abstract Based on large quantities of remote sensing data and topographic data, this paper studied the evolution of the
shoreline in Zhujiang Bay since 1978. The results show that the evolution of the shoreline on the east bank and that on the
west bank had different characteristics from 1978 to 2003, and the shoreline has been mainly man-made since 1978. Zhujiang
Delta in South China has the largest area of mangrove wetlands in China. However, the mangrove wetlands largely disappeared
because of intensified human activities in the study area. from 1978 to 2006. The analysis clearly shows the fluctuations
of the areas of mangrove wetlands in the past three decades. Many natural mangrove forests have disappeared because of
reclamation projects. Only those in the reserve areas, such as mangrove forests in Qi’ao Island, Futian, and Maipo, have
been well protected under strict conservation policies.
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Keywords
Locust
Detection
ARVI
Fuzzy classification
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Issue Date: 13 November 2010
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