Torripsamments that lack all other diagnostic characteristics. These are the soils that represent the central concept of the great group. They are deep and have a texture of sand or loamy sand throughout the top 100 cm of the profile. They are nonsaline and are always calcareous to various degrees but do not have enough pedogenic carbonate accumulation to form a calcic horizon. Torripsamments (27.3%) are the second most extensive soils in Kuwait (Fig. 5.10) after petrogypsids (33.4%).

Typic Torripsamments

References

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Silene villosa grows on sandy soils (Entisols)

Abstract

The soil taxonomy hierarchy of Kuwait is based on two soil surveys, (i) Fourth order Reconnaissance soil survey of Kuwait completed at 1:100,000 scale at the fifth hierarchy level (soil family) of US Soil Taxonomy; and (ii) Second order Semi-detained soil survey of 200,000 ha at scale 1:25,000 scale (with the potential for irrigated agriculture) completed at the sixth level (soil series) of US Soil taxonomy hierarchy. Based on the reconnaissance survey, 2 soil orders, 7 suborders, 8 great groups, 14 subgroups and 24 soil families were mapped. In the semi-detailed survey 39 soil series were mapped. Mixed, carbonatic, gypsic and hypergypsic mineralogy classes are identified. Sandy, sandy-skeletal, coarse-loamy, fine-loamy and coarse-gypseous family textural classes are identified. In this book the terminologies and the standards have been upgraded to the latest USDA protocols.

Keywords

Taxonomy Hierarchy Mineralogy class Particle size class Soil family

Soil series Kuwait

6.1Introduction

The US Soil Taxonomy was used to establish soil families (reconnaissance survey) and soil series (semi-detailed survey). The US Soil Taxonomy (Soil Survey Staff 2014) hierarchy constitutes six levels.

Switzerland AG 2022

S. A. Shahid and S. A. S. Omar, Kuwait Soil Taxonomy, https://doi.org/10.1007/978-3-030-95297-6_6