公路路域生态环境遥感监测数据源选取研究

为了满足路域生态环境监测遥感数据选取的需求,针对公路建设及生态特点,从时相特征、空间特征、数据特征和价格因素4个方面考虑,以近年修建的8条高速公路为研究对象,对其遥感影像进行了筛选。通过公路修建的不同时期、当地植被生长季以及时相一致性,从时相特征对遥感影像进行选择;根据不同尺度所选择的遥感影像分辨率要求,从空间特征上对其进行选择。依据可见光数据、多光谱数据以及高光谱数据的特征\,云量以及光照因素对遥感影像的影响等,从数据特征方面对遥感影像进行选取;考虑价格因素能够更为有效地使用遥感资源。通过这4个方面的筛选,能够为公路路域生态环境监测选取较为适宜的遥感数据提供科学依据。

Remote Sensing Data Selection Research for Road Ecological Environmental Monitoring

For the demands of road ecological environmental monitoring,according to road construction and ecological characteristics,we studied on 8 road constructed recently considering on phase characteristics,spatial characteristics,data characteristics and price.Phase characteristics selection includes various phases of road construction,local vegetation conditions and coordination of various phases.Spatial characteristics selection means different scales by different resolution.And data characteristics are combined with visible light data,multi-spectral data,cloud cover and light reflected factors.Consideration of price can make remote sensing data used more effectively.Through these studies we could provide scientific judgments about appropriate remote sensing data selection for road ecological environmental monitoring research.