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Geoscience ›› 2006, Vol. 20 ›› Issue (3): 500-504.

• Engineering Geology and Environmental Geology • Previous Articles     Next Articles

Research on Classification and Change of Seaside Wetland around Yalujiang River Estuary Based on RS and GIS

XU Ying-xue1, SHAO Jing-li1, YANG Wen-feng1, WANG Wei-dong2, CUI Ya-li1, SONG Qing-chun2   

  1. 1School of Water Resources and Environment, China University of Geosciences, Beijing100083, China;
    2Liaoning Investigation Institute of Hydrogeology and Engineering Geology, Dalian, Liaoning116037, China
  • Received:2006-02-21 Revised:2006-04-28 Online:2006-03-20 Published:2006-03-20

Abstract:

Remote sensing technology provides an effective method for survey and monitoring of wetland resources. Integrating RS and GIS technologies, wetland information in seaside wetland around Yalujiang River estuary is obtained quantitatively. The types, distributions and areas of wetland are investigated. Change in the land utilization from 1989 to 2000 is analyzed. With the increase of shrimp field, residential and tidal-flat area, and the decrease of reed marsh, paddy field and shallow sea area, the ecology environment of seaside wetland around Yalujiang River estuary has been damaged. Urban expansion and economic development are mostly responsible for these damages. The decrease of natural wetland made many species of animals and plants relying on wetland reduce greatly. For the protection of ecology environment, it is necessary to forbid destroying reed and reclamation, convert cropland to reed, adopt rational exploitation and utilize wetland resources, and obtain the objective of sustainable development.

Key words: classification, change, seaside wetland, Yalujiang River

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