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Cultivos Tropicales

versión On-line ISSN 1819-4087

cultrop vol.42 no.3 La Habana jul.-set. 2021  Epub 30-Sep-2021

 

Short communication

Area occupied by group and genetic types of soils in Cuba

0000-0002-6138-0620Alberto Hernández-Jiménez1  * 

1Instituto Nacional de Ciencias Agrícolas (INCA), carretera San José-Tapaste, km 3½, Gaveta Postal 1, San José de las Lajas, Mayabeque, Cuba. CP 32 700

ABSTRACT

This work presents the area occupied by the different soils of Cuba at the level of Grouping and Genetic Type of soil, according to the 1999 version of the Cuban Soil Classification. The work was carried out taking into account the data from the genetic map planimetry of Cuba´ soils 1: 250,000 and the digital map SOILS 500,000, in which the 1999 soil classification is applied. It is shown that the Siallitic Brown soils are the most extensive (32.9 % of the country) and in that order are followed by Hydromorphic soils (Gleysols) (21.34 %), Histosols (8.27 %) and Vertisols (8.27 %). The soils of the Ferrallitic Group occupy the fifth place with an area of 6,717 km2 (6.21 %).

Key words: cartography; soil classification; productivity

INTRODUCTION

One of the most important premises of a country is to develop efficient agriculture, for which it is necessary to know what types and subtypes of soils there are, their properties and, above all, the area occupied by each type and subtype of soil. In this way, it will be possible to know the quality of the agricultural fund that is available and to know what limitations a sustained agricultural production will have.

In the world, the most developed countries such as the United States, Canada and European countries, have been able to carry out this research and have two types of classifications that have global relevance, such as the North American Soil Taxonomy classification 1 and the World Reference classification Base 2. However, underdeveloped countries have not yet reached that level.

In Latin America, there is no such development, many of the studies are carried out in isolated regions and most of the time there is no complete map of soils of the country on a medium or large scale. In general, the studies are governed on the North American Soil Taxonomy system basis, although Mexico follows the World Reference Base system as a continuation of FAO Classification. In countries such as Ecuador, the World Reference Base system begins to be implemented; as for example, the results of the cartography and classification of soils to know their productivity of the Carrizal-Chone System in Manabí 3,4.

It should also be noted that in Latin America there are only two countries that have their own soil classification system, such as Cuba and Brazil, with recent versions 5,6.

A classification of soils, elaborated under the genetic-geographical principles, is essential to achieve an adequate mapping of the soils and thus know the agricultural potential that is available. In addition, it is essential to know the territory that each type of soil occupies, especially for applied edaphological work; thus, for example, to know the area of Ferrallitic soils, for the improvement works of its either structure 7; carbon capture and sequestration 8) or in case of application of mycorrhizal amendments in Fersiallitic or Gleysol soils 9.

In Cuba, soil genesis and cartography studies had considerable support since the beginning of the Triumph of the Revolution and currently there are soil maps at different scales, which has given the possibility of knowing their distribution and the area that each occupies type and grouping of soils. However, for the 1999 version of soil classification this result has not been given, which is the objective of this work.

MATERIALS AND METHODS

The area occupied by the soils of Cuba is presented in Groupings and Genetic Types of soils (expressed in km2), taking into account the “New Version of Genetic Classification of the Soils of Cuba” 10. Unfortunately, this version of soil classification does not take into account the separation of soils at the subtype level due to the influence of continued cultivation, since currently there are results obtained in recent years 11,12 and expressed as a subtype of soils agrogenic in the most recent version 5.

The calculation was made based on the results of the Soil Map of Cuba 1: 250,000 planimetry and published in the book "Genesis and Classification of Cuba´ Soils" 13. Also, in the calculation of the areas of the work SOILS 500 000, prepared according to the New Version of the Genetic Classification of Cuba´ Soils and presented at the International Soil Geography: New Horizons Conference in Huatulco, Mexico 14. In addition, the correlation of soil types with the world classifications Soil Taxonomy 1 and the WRB Classification of soils is presented 2.

The results should be taken in an approximate way, both for the correlations with other classifications, such as the area that each soil occupies.

RESULTS

Table 1 shows the area in square kilometers occupied by each Genetic Group and Type of Cuba´ Soils. As can be seen, in the first place, the most extensive are the Brown Siallitic soils that occupy 32.9 % of the total territory, because of the formation in mountains of the ancient Arches of Islands and the pediplanation process that has occurred. It is due to the washing of the Miocene limestones and the outcrop of the oldest igneous rocks, with the formation of younger soils, as is well explained in the formation of the soils of the Campo Florido region 15.

Table 1 Groupings and Genetic Types of Soils of Cuba, approximate area they occupy and their correlation with the Soil Taxonomy and WRB classifications 

Group Genetic Type Area (km2) Corelation with Soil Taxonmy Corelation with WRB
Allitic Soils (6717 km2) Low Activity Clay Red Allitic 1931 Rhodic Kandiustalf Rhodic, Alumic Acrisol
Low Activity Clay Yellowish Red Allitic 890 Rhodic-Xanthic Rhodustalf Rhodic, Xanthic, Alumic Acrisol
Low Activity Clay Yellow Allitic 380 Xanthic Rhodustalf Xanthic, Alumic Acrisol
High Activiy Clay Yellowish Red Allitic 3200 Typic Rhodudalf Rhodic, Xanthic, Alumic Alisol
High Activiy Clay Yellowish Allitic 316 Xanthic Rhodudalf Xanthic, Alumic Alisol
Ferritic Soils (1908 km2) Dark Red Ferritic 1875 Rhodic Eutrudox Ferritic, Rhodic, Eutric Ferralsol
Yellowih Ferritic 33 Xanthic Eutrudox Ferritic, Xanthic, Eutric Ferralsol
Ferrallitic Soils (6807 km2) Red Ferrallitic 5539 Rhodic Eutrustox Ferralic, Rhodic, Eutric, Clayey Nitisol
Red Lixiviated Ferrallític 716 Typic Rhodustalf Ferralic, Rhodic, Lixic, Eutric Nitisol
Yellowih Lixiviated Ferrallitic 552 Xanthic Rhodustalf Ferralix, Xanthic, Lixic, Eutric Nitisol
Ferrallic Soils (1650 km2) Red Ferrallic 1400 Oxic, Rhodic Haplustept Ferralic, Rhodic, Eutric Cambisol
Yellowish Ferrallic 250 Oxic, Xanthic Haplustept Ferralic, Xanthic, Eutric Cambisol
Fersiallitic Soils (2952 km2) Reddish Brown Fersiallitic 2300 Oxic Haplustept Chromic, Eutric Cambisol
Red Fersiallitic 652 Oxic Haplustept Rhodic, Eutric Cambisol
Siallitic Brown Soils (36068 km2) Brown 34548 Cambisol Typic Haplustept Eutric Cambisol
Grayish Brown 1520 Typic Dystrustept Dystric Cambisol
Humic Siallitic Soils (5744 km2) Calcimorphic Humic 2300 Typic Haplustoll Calcaric, Clayey Feozem
Rendzina 3444 Lithic Haplustoll Rendzic, Calcaric Feozem
Vertisols (9060 km2) Pellic Vertisol 8200 Typic Haplustert Pellic Vertisol
Chromic Vertisol 860 Chromic Haplustert Chromic Vertisol
Hallomorphic Soils (216 km2) Saline 96 Salic Epiaquent Gleyic, Clayey Solonchak
Sodic 120 Typic Halaquept Stagnic Solonetz
Hydromorphic Soils (23380 km2) Vertic Gley 6800 Ustic Endoaquert Eutric, VerticGleysol
Humic Gley 6400 Typic Endoaquept Eutric, Clayey, HumicGleysol
Nodule Ferruginous Gley with 2 Subtypes: Typic Petroferric 10180 6254 3926 They are Plintaqualf with two Subgroup: Typic Plinthaqualf Petroferric Plinthaqualf Pisoplinthic Gleysol and Petroferric Gleysol
Fluvisol (375 km2) Fluvisol 375 Typic Ustifluvent Eutric Fluvisol
Histosols (9062 km2) Fibric Histosol 5200 Typic Haplofibrist Fibric Histosol
Mesic Histosol 3520 Typic Haplohemist Mesic Histosol
Sapric Histosol 342 Typic Haplosaprist Sapric Histosol
Few Evolutionated Soils (3583 km2) Arenosol 1030 Typic Quartzisapmment Eutric Arenosol
Lithosol 753 Lithic Ustorthent Lithic, Skeletic Lithosol
Protorrendzina 1800 Lithic Ustorthent Lithic, Rendzic Leptosol
Anthrosols (2010 km2) Saline Anthropic 2000 Dont have correlation Salic Anthrosol
Recultivated Anthropic 10 Dont have correlation Hortic Anthrosol

Secondly, there are the Hydromorphic soils (Gleysols), affected by the gleyization process, which is due to the formation of soils in conditions of cumulative plain with poor drainage (21.34 % of the total). In this case, it should be noted that the territory of Cuba, largely, is made up of plains (4/5 of the territory), which is corroborated with other soil formations in cumulative plains, such as Histosols (8.27 % of the total) and Vertisols. It is followed in extension by the Ferrallitic soils, formed largely of Miocene limestone in the plains, due to the peniplanation process that began at the end of the Neogene (6.21 % of the total).

The representative soils of tropical weathering (Allitics, Ferritics and Ferrallitics), as a whole, occupy a territory of 15,442 km2 and their presence is due to the formation over time, in stable reliefs such as plains, plateaus and surfaces stable in mountainous regions.

The least extensive soils are Fluvisols and Lithosols. In the case of Fluvisols, it is because there are no mighty rivers in Cuba, Cauto River in the plains is confined to several meters deep, and due to neotectonic movements in the Quaternary and in the terraces closest to the river there are soils Brown, formed from ancient alluvial sediments. Lithosols refer mainly to the so-called “Diente de Perro”, which occurs in the most recent quaternary terraces. In the case of rocky outcrops that occurred in the past due to tropical weathering, they rapidly transform into the B siallic horizon (B cambic), giving lead to the formation of Brown soils that are correlated with Cambisols in the World Reference Base classification of soils 2) or Inceptisols by the Soil Taxonomy classification of soils 1.

CONCLUSIONS

  • The area occupied by the Genetic Groupings and Types of Cuba´ soils is shown, based on the planimetric calculation of the 1: 250,000 scale soil map. Their extension responds to the conditions of soil formation, mainly due to the processes pedinplanation, hydromorphy and the presence of old stable surfaces.

  • The most extensive soils are soils of the Brown genetic Type, following in that order the Gelysols, Vertisols and Histosols

  • The soils that are typical formation of the tropical regions (Allitic, Ferritic and Ferrallitic) have an area a little greater than 15,000 km2.

  • It is notable that Fluvisols and Lithososls are very little extensive.

BIBLIOGRAFÍA

1.  USDA. Claves para la Taxonomía de Suelos. Departamento de Agricultura de los Estados Unidos, Décima. 2014;399. [ Links ]

2.  IUSS Working Group WRB. International soil classification system for naming soils and creating legends for soil maps. Vol. 106. Rome, Italy: World Soil Resources Reports (FAO). 2014. 181 p. [ Links ]

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9.  Bernal-Fundora A, Hernández-Jiménez A. Influencia de diferentes sistemas de uso del suelo sobre su estructura. Cultivos Tropicales. 2017;38(4):50-7. [ Links ]

10.  Hernández-Jiménez A, Pérez-Jimenéz JM, Bosch-Infante D, Rivero-Ramos L. Nueva versión de la clasificación genética de los suelos de Cuba. La Habana, Cuba: Instituto de suelos; 1999. 64 p. [ Links ]

11.  Hernández-Jimenez A, Morales-Díaz M, Borges Y, Vargas-Blandino D, Cabrera-Rodríguez JA, Ascanio MO, et al. Degradación de los suelos Ferralíticos Rojos Lixiviados de la Llanura Roja de la Habana por el cultivo continuado. Algunos resultados sobre su mejoramiento. Mayabeque, Cuba: Ediciones INCA; 2014. 158 p. [ Links ]

12.  Hernández-Jiménez A, Vargas-Blandino D, Bojórquez-Serrano JI, García-Paredes JD, Madueño-Molina A, Morales-Díaz M. Carbon losses and soil property changes in ferralic Nitisols from Cuba under different coverages. Scientia Agricola. 2017;74(4):311-6. [ Links ]

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15.  Hernández-Jimenez A, Cárdenas-García A, Obregón-Santoyo A, Marrero A, Bosch D. Estudio de los suelos de la región de Campo Florido. Serie Suelos. 1973;18:1-57. [ Links ]

Received: June 13, 2019; Accepted: March 31, 2021

*Author for correspondence: ahj@inca.edu.cu

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