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标题：A proposed limnological classification of small water bodies based on the climate, in a tropical region: Mexico
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作者：Justo Salvador Hernández-Avilés ; José Luis García Calderón ; Guadalupe de la Lanza Espino 等
期刊名称：Investigaciones Geográficas (Mx)
印刷版ISSN：0188-4611
出版年度：2007
期号：64
页码：63-74
语种：English
出版社：Universidad Nacional Autónoma de México
摘要：Small aquatic systems (<100 ha) in Mexico are commonly regulated by the climate. The climate generates a temporal unit of variation throughout the year along a latitudinal gradient, that is strongly modified by the altitude. The proposed grouping of small water bodies into limnological regions in Mexico is associated with six ecological areas that are defined by the climate: a) a humid tropical area that covers 4.7% of the countrys surface, b) a sub-humid tropical area with 23%, c) a humid temperate area with 2.7%, d) a sub-humid temperate area with 20.5%, e) an arid and semi-arid area with 49% and f) an alpine area with 0.1%. The limnological characteristic that was used to group the small water bodies was the change in water volume. With respect to this, three regions can be defined: a) warm and temperate humid regions where the volume of water varies but does not dry up (perennial astatic systems), b) warm sub-humid, arid and semi-arid regions that dry up annually (seasonal astatic systems), and c) sub-humid temperate regions, as a transition group (semi-perennial astatic systems). Variations in the water level affect the dynamics of dissolved materials
其他摘要：Small aquatic systems (<100 ha) in Mexico are commonly regulated by the climate. The climate generates a temporal unit of variation throughout the year along a latitudinal gradient, that is strongly modified by the altitude. The proposed grouping of small water bodies into limnological regions in Mexico is associated with six ecological areas that are defined by the climate: a) a humid tropical area that covers 4.7% of the countrys surface, b) a sub-humid tropical area with 23%, c) a humid temperate area with 2.7%, d) a sub-humid temperate area with 20.5%, e) an arid and semi-arid area with 49% and f) an alpine area with 0.1%. The limnological characteristic that was used to group the small water bodies was the change in water volume. With respect to this, three regions can be defined: a) warm and temperate humid regions where the volume of water varies but does not dry up (perennial astatic systems), b) warm sub-humid, arid and semi-arid regions that dry up annually (seasonal astatic systems), and c) sub-humid temperate regions, as a transition group (semi-perennial astatic systems). Variations in the water level affect the dynamics of dissolved materials
关键词：Mexico; small water bodies; climate; regionalization Pequeños cuerpos de agua; México; clima; regionalización