Ancient Maya Wetland Agriculture: New Insights from Ecological and Remote Sensing Research
Ancient Maya Wetland Agriculture: New Insights from Ecological and Remote Sensing Research
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古代玛雅湿地农业:生态和遥感研究的新见解
DOI:
10.1179/jfa.1989.16.1.87
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发表时间:
1989
影响因子:
1.9
通讯作者:
B. Dahlin
中科院分区:
文献类型:
--
作者:
K. Pope;B. Dahlin
Abstract Despite claims that ancient Maya canals are found throughout the central Maya Lowlands, our study of satellite and aircraft imagery indicates that canals are concentrated in three regions: northern Belize, southern Quintana Roo, Mexico, and along the upper Candelaria River and its tributaries in Campeche, Mexico. Earlier reports of lattices of small canals in the karstic depressions, or bajos, of Peten, Guatemala, based on the analysis of airborne radar imagery, have not been verified with other remote sensing data or by field research. Our analyses of this same airborne imagery and Seasat satellite radar imagery demonstrate that the spatial resolution of, and speckle noise in, existing radar imagery make it inadequate for mapping lattice patterns of small canals. Radar imagery and Landsat Thematic Mapper imagery were, however, useful in mapping large canals, which in most cases are connected to lattices of smaller canals. Furthermore, our analyses of wetland soils, vegetation, and hydrology conf...