Encyclopedia of Soil Science

2008 Edition
| Editors: Ward Chesworth


Reference work entry
DOI: https://doi.org/10.1007/978-1-4020-3995-9_112
The condition of a region of the Earth in terms of prevailing atmospheric phenomena, such as temperature, humidity, wind, and so on, averaged over a number (30 is usual) of years. Recognized as one of the important soil-forming factors. The most commonly used classification system for world climatic zones was devised by the Russian scientist Vladimir Köppen (1856–1940). The classification is based on precipitation and temperature data, and has been modified several times by several authors. The latest version is illustrated, and summarized in Table C18.
Table C18

Brief Guide to Koeppen Climate Classification System (Kottek et al., 2006)

Class A: Tropical


Temperature of the coldest month: > 18 °C. This the climate where the most water- and heat-demanding crops (e.g. for instance oilpalm and rubber) are grown. The climate is also ideal for yams, cassava, maize, rice, bananas and sugarcane. Sub-classes are:


Af – No dry season, at least 60 mm of rainfall in the driest monthAm – Monsoon...

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  1. Kottek, M., Grieser, J., Beck, C., Rudolph, B., and Rubel, F., 2006. World map of Koppen‐Geiger climate classification. Meteor. Z., 15: 259–263.CrossRefGoogle Scholar

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