2005-2015年滦河口湿地景观格局变化及环境效应

Changes of Wetland Landscape Pattern and Their Effects on Ecological Environment in Luanhekou from 2005 to 2015

湿地作为重要的生态系统之一,历来是研究的热点。文章以滦河口湿地作为研究对象,运用ENVI5.0和Arc gis10.2对遥感影像数据进行多波段合成、几何校正、图像裁切等数据处理。运用景观格局指数法,选取4个代表性的景观指数,对滦河口湿地的变化趋势进行分析。结果表明:2005-2015年滦河口湿地中自然湿地景观大面积消失,并转换为人工湿地景观和非湿地景观。对于认识滦河口湿地的退化现状以及为管理部门采取保护湿地的对策措施提供了很好的借鉴。

Wetland,as one of the important ecosystems,has traditionally been a hot topic.In this paper,the Luanhekou wetland is used as the research object,and the remote sensing image data are processed by multi-band synthesis,geometric correction and image cutting by using ENVI5.0 and Arc gis10.2.Using the landscape pattern index method,four representative landscape indices were selected to analyze the changing trend of Luanhekou wetland.The results show that the large area of natural wetland landscape in Luanhekou wetland disappears from 2005 to 2015,and it is converted into artificial wetland landscape and non-wetland landscape.It is a good reference for understanding the degradation status of Luanhekou wetland and the measures to protect wetland.