chestnut soil

Also known as: chestnut-brown soil, kastanozem

Written by

The Information Architects of Encyclopaedia Britannica

Last updated

June 24, 2026

Quick Summary

Chestnut soils are an agriculturally significant group of soils typically found in cool, semiarid grasslands and steppes. They are characterized by a dark-brown surface layer that gradually transitions into a lighter-colored zone below, eventually leading to a horizon where lime has accumulated.1

A related type, reddish chestnut soil, develops in warmer, semiarid climates with mixed grasses and some shrubs. These soils also have dark brown surface layers, but they are tinted pinkish or reddish and can be up to two feet thick. Beneath this, the soil becomes heavier and reddish-brown, resting on accumulations of grayish or pinkish lime.2

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

2 Britannica Sources

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.

Africa
Chestnut-brown soils
In the semiarid areas bordering the desert, increased rainfall makes grass vegetation more plentiful, results in rocks becoming more weathered than in the desert, and produces better developed soils with a higher humus content. It is the humus content that, according to the…
Read More
In the semiarid areas bordering the desert, increased rainfall makes grass vegetation more plentiful, results in rocks becoming more weathered than in the desert, and produces better developed soils with a higher humus content. It is the humus content that, according to the…
Read More

Europe
Soils
At best, chestnut soils—some needing only water to be productive—and, at worst, solonetzic (highly saline) soils cover areas of increasing aridity eastward of Ukraine to the Ural River. Lastly, in southern Europe, where the countryside is fragmented by mountains, plateaus, and hills, much soil has been lost…
Read More
At best, chestnut soils—some needing only water to be productive—and, at worst, solonetzic (highly saline) soils cover areas of increasing aridity eastward of Ukraine to the Ural River. Lastly, in southern Europe, where the countryside is fragmented by mountains, plateaus, and hills, much soil has been lost…
Read More