中文摘要：

以1999年、2002年和2010年3期TM/ETM影像为数据源,综合应用RS与GIS技术,以呼伦贝尔市西南六县为重点研究区,对其湿地进行专题信息提取和分类,了解呼伦贝尔湿地近10多年来的动态变化。结果表明：近11年来,研究区湿地面积萎缩严重,总面积减少3 522.07 km2,变化率为36.5%。其中新巴尔虎右旗和陈巴尔虎旗湿地面积减少最多,变化主要包括湿地向非湿地的转变和草甸沼泽湿地向草本沼泽湿地的转变。初步反映了呼伦贝尔盟湿地的退化现状,为进一步加强湿地保护与生态恢复提供了依据。

英文摘要：

We used TM data in 1999 and ETM data in 2002 and 2010 to explore the dynamic changes of Hulunbuir wetlands in recent 10 years, based on visual interpretation of wetland classifi cation and applying of computer automatic classifi cation techniques.The main results indicated that in recent 11 years, the wetland in this area was declined severely. The total wetland area was reduced to 3522.07 km2, and change rate was 36.5%. And among counties in the study area, most of decreased wetland area was in Chenbarag Qi and Xinbarag Youqi of Hulenbuir. The change of wetland included the wetlands converted to non-wetland and meadow marsh wetland converted to herbaceous marsh wetlands. The results revealed the degree of degradation of wetland in Hulunbeier, and provided basic data for future studies and policy makers in wetland protection and management.