J4 ›› 2009, Vol. 39 ›› Issue (6): 1127-1133.

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Study on Dynamic Change of Wetland in Sanjiang Plain,Northeast Area

JIANG Qi-gang|CUI Han-wen|LI Yuan-hua   

  1. College of GeoExploration Science and Technology, Jilin University, Changchun 130026, China
  • Received:2008-12-29 Online:2009-11-26 Published:2009-11-26

Abstract:

The authors study on the wetland’s change of Sanjiang Plain in the past 20 years, with the TM, ETM and CBERS data, analyzing and quantifying the present distribution and spatial-temporal dynamic variety by RS and GIS technology. The results show that the wetland is now mainly distributed in the counties of Tongjiang, Fuyuan, Fujin, Hulin and etc., the varieties of lake and river are almost stable. During the study period, the mire area reduced 5 356.69 km2 greatly and the constructed wetland increased 11 597.68 km2. The results also indicate that the natural wetland landscape’s fragmentation is enhanced and the constructed wetland is connecting together gradually affected by human activity.

Key words: RS, Sanjiang Plain, wetland, GIS

CLC Number: 

  • X171.1
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