文章基本信息

标题：Variabilidad hídrica y edáfica de humedales peninsulares interiores a partir de imágenes Landsat (TM y ETM)
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作者：María Pilar García Rodríguez ; María Eugenia Pérez González ; Juan José Sanz Donaire 等
期刊名称：Estudios Geográficos
印刷版ISSN：0014-1496
电子版ISSN：1988-8546
出版年度：2006
卷号：67
期号：260
页码：57-78
DOI：10.3989/egeogr.2006.i260.43
语种：Spanish
出版社：Consejo Superior de Investigaciones Científicas
摘要：Some wetlands from the central part of Spain have been here studied. There are big differences between field work and images taken by some sensors of environmental satellites. Usually, on summer, when these ponds dry up, the seasonal wetlands exhibit a whitish surface due to salt precipitation, contrasting with the bluish colour displayed in images. It has been suggested that this apparent paradox results from the fact that sensor records data from an three-dimensional earth and not only from a simple surface. Therefore, in Mediterranean semiarid region satellite images can be used to discriminate wetlands fed by groundwater from other ones having a non sub-surface water contribution.
关键词：inner wetlands;remote sensing;salinization;groundwater;humedales interiores;teledetección;salinización;aguas subterráneas