宁夏月牙湖移民区生态环境变化监测

利用宁夏月牙湖生态移民区2010年与2012年2期卫星影像数据,通过人工目视解译,并且与实地土地利用调查资料相结合,对该生态移民区生态环境变化进行监测。结果表明,2010—2012年,由于生态移民过程中对移民区的土地利用结构进行了规划调整,移民区天然草地、沙地面积明显减少,而耕地、林地面积明显增加,生态移民对改善当地土地利用方式起到了积极的作用。根据生态环境状况变化幅度分级标准,研究区2010—2012年生态环境状况明显好转。

Monitoring of Change of Ecological Environment of Yueyahu Ecological Migrants Area in Ningxia

By using the satellite image data of Yueyahu ecological migrants area in Ningxia in the year of 2010 and 2012, the change of the ecological environment of the ecological migrants area was monitored by artificial visual interpretation in combination with the land use data collected by field investigation. The results indicated that the area of natural grass land and sandy land decreased obviously and the farmland and forest land increased obviously from 2010 to 2012 because of the planning and adjustment of the land use structure of the ecological migrants＇ area during the ecological migration process. The ecological migration has played a positive role in improving the land use practice of the local area. The ecological envi- ronment of the researched area has been improved obviously during 2010 to 2012 in accordance with the ecological envi- ronment change classification standard.