基于遥感的天津市滨海湿地变化研究

The Change of Coastal Wetland in Tianjin Based on Remote Sensing

摘要: 湿地素有“地球之肾”的美称，具有极其重要的生态功能。本文以天津市滨海新区湿地作为研究对象，采用2011年Landsat 7 ETM+影像、2013年、2015年Landsat 8 OLI遥感影像数据，运用监督分类与人工目视解译相结合的方法进行湿地分类，提取出3期影像中湿地的类型及其分布范围，对其变化规律进行分析和探讨，结果表明所述方法对于研究一定时期的湿地变化是可行的。

Abstract: Wetland is an ecological system with the most biological diversity, which is known as the “kidney of the earth”. This paper takes Tianjin Binhai New Area wetlands as the research object, using remote sensing image date of Landsat 7 ETM+ in 2011 and Landsat 8 OLI image in 2013 and 2015. This research uses the method of supervised classification combined with artificial visual interpretation to classify remote sensing image, and then to extract the 3 stage images in wetland types and their distribution range, analyze and discuss the change rules. The results show that the above method is practicable for studying the period change of coastal wetland.