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An Analysis of Dynamic Change and Landscape Spatial Pattern of the Wetlands in Yancheng of Jiangsu Province Based on Remote Sensing Technology |
ZHAO Yu-ling 1, YU Wan-xin 2, NIE Hong-feng 1
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1.China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083,China; 2.Chinese University of Geosciences, Beijing 100083, China |
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Abstract Wetland has various ecosystems functions as well as economic and social values and hence is regarded as a mature
resource treasury and living environment for people’s existence and development. In recent years, due to economic
development and population growth, the human interference and destruction of the wetlands have become increasingly serious,
and the prevention of the degradation of wetlands has become a very important and urgent task. In this paper, the wetland
resource in Yancheng was extracted by using multi-source remote sensing data of CBERS, ETM, TM, MSS, in combination with
other non-remote sensing data, such as the terrain map. According to the information retrieval results, the authors
analyzed and forecast the change of wetland landscape by using the Markovian models, the Convertion Marix and the Dynamics
Rate. Based on data available, the authors hold that such changes in the landscape pattern is attributed to some natural
changes and human activities, such as geotectonic movement, climate, economic development and population growth, with the
human activities being the main factor responsible for landscape pattern variation.
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Keywords
Burnt rock
Reflectance spectral curve
Hyperspectral
Information extraction
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Issue Date: 13 November 2010
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