最新内蒙古东部湿地动态遥感分析-环境工程专业毕业论文.docx

文档介绍：内蒙古东部湿地动态遥感分析-环境工程专业毕业论文
内蒙古大学硕士学位论文
与全国湿地率(5．58％)相比，内蒙古东部地区湿地率明显高于全国平
均水平，属于我国第二大湿地分布区(东北地
万方数据
内蒙古大学硕士学位论文
into four parts according to the administrative region，discuss the distribution characteristics and dynamic changes of constructed wetland and natural wetlands．And analyze the driving factors．
Results indicated：
1．The wetland area in 2022 was observed to be 41 100km2 for
Eastern Inner Mongolia，and the wetland rate was 8．90％．Compared with the National Wetland rate(5．5 8％)，the wetland in Eastern Inner Mongolia was significantly higher than the national average level，which belongs to
the part of the second wetland distribution areas(Northeast China)in China． 2．The distribution of wetland had obvious geographical featm'es，
Hulunbeier is the most important natural wetland area，which accounts for 80％of natural wetlands in the eastern part of Inner Mongolia；Constructed wetlands were mainly distributed in Xingan Meng and Chifeng，which
accounts for 63％of the whole wetland in Eastern Inner Mongolia．
3．Notable loss of wetland was observed in Eastern Inner Mongolia during 1990．2022，about 2700km2(6．8％of natural wetland)．The most significant decrease in wetland area was Tongliao，about 776km2，the loss of the area accounted for nearly 50％．
4．While significant increased area was observed in constructed
wetland of Xingan Meng with an increase area of 63 km2，increase about
万方数据
内蒙古大学硕士学位论文
87％．
5．Under the influence of climate change and human activities，Marsh wetland is the most significant wetland type，and the loss area of wetland in Eastem Inner Mongolia was 2498km2．There were clear differences in the impacts of climatic and human factors on the different wetland types，while human activities may be the le