Variability of soil types in wetland meadows in the south of the Chilean Patagonia

The wetland meadows and pastures (vegas) of the agricultural zone of the Magallanes Region and the Chilean Patagonia are productive and intensively exploited ecosystems. However, there is scarce data about the typology and the physical and chemical properties of the soils that determine the agricult...

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Main Authors: Filipová, Ladislava, Hédl, Radim, Covacevich, Nilo C.
Format: Other/Unknown Material
Language:English
Published: Instituto de Investigaciones Agropecuarias, INIA 2010
Subjects:
Online Access:http://www.bioline.org.br/abstract?id=cj10029
id ftbiolineint:cria:bioline:cj:cj10029
record_format openpolar
institution Open Polar
collection Bioline International (Reference Center on Environmental Information, Brazil)
op_collection_id ftbiolineint
language English
topic Histosol
Fluvisol
peat
soil properties
salinization
soil degradation
Histosoles
Fluvisoles
turba
propiedades del suelo
salinización
degradación del suelo
spellingShingle Histosol
Fluvisol
peat
soil properties
salinization
soil degradation
Histosoles
Fluvisoles
turba
propiedades del suelo
salinización
degradación del suelo
Filipová, Ladislava
Hédl, Radim
Covacevich, Nilo C.
Variability of soil types in wetland meadows in the south of the Chilean Patagonia
topic_facet Histosol
Fluvisol
peat
soil properties
salinization
soil degradation
Histosoles
Fluvisoles
turba
propiedades del suelo
salinización
degradación del suelo
description The wetland meadows and pastures (vegas) of the agricultural zone of the Magallanes Region and the Chilean Patagonia are productive and intensively exploited ecosystems. However, there is scarce data about the typology and the physical and chemical properties of the soils that determine the agricultural potential of vegas sites. Sampling of the main horizons of 47 soil profiles was conducted throughout the area. The profiles were described in the field and consequently classified according to the soil typology system of the WRB (IUSS Working Group WRB, 2006). Analyses of bulk and particle densities, capillary water capacity, pH (H 2 0), pH (CaC1 2 ), texture, organic material, C:N ratio, electrical conductivity, effective cation exchange capacity, N, P, Ca-Mg-K-Na, exchangeable Al, extractable Al, sulfur SO4 2- , B, and micronutrients (Cu-Zn-Mn-Fe) were carried out. The most frequently recorded groups of soil types in the studied vegas were Histosols - peat soils (20 profiles), and Fluvisols (19). Gleysols (3), Vertisols (1), Regosols (3), Solonchaks (1) and Solonetzs (1) were detected with much less frequency. There is also considerable variability in soil properties among and within the groups of soil types. The principal differences between the Histosols and the Fluvisols are the content of organic matter (often peat), pH level (related to the absence/presence of carbonates) and associated soil properties. Fluvisols are more susceptible to salinization under conditions of aridity, whereas the main threat to Histosols is artificial drainage. Las praderas húmedas (vegas) de la zona de uso agropecuario de la Región de Magallanes y la Antártica Chilena son ecosistemas productivos e intensamente explotados. No obstante, los conocimientos de los factores edáficos que determinan el potencial de las vegas son escasos. En este trabajo se realizó el muestreo de los horizontes principales de 47 perfiles del suelo de distintos tipos de vegas de la zona. Los perfiles se describieron y se clasificaron siguiendo el sistema de WRB (IUSS Working Group WRB, 2006). Se realizaron análisis de densidad aparente, capilaridad, pH al agua, pH al CaCl2, textura, materia orgánica, relación C/N, conductividad eléctrica, capacidad intercambio catiónico efectiva (ECEC), N mineral, P, Ca-Mg-K- Na, Al intercambio, Al extractable, azufre SO4 2- , B y micronutrientes (Cu-Zn-Mn-Fe). Los grupos de suelos de referencia más comunes en las vegas de la zona son los Histosoles o turbas (20 perfiles) y los Fluvisoles (19). Raramente se pueden detectar los Gleysoles (3), los Vertisoles (1), los Regosoles (2), los Solonchaks (1) y los Solonetzs (1). Existe una considerable variabilidad en las propiedades de los suelos de las vegas entre y también dentro de los grupos de referencia. Las mayores diferencias entre los Histosoles y los Fluvisoles estriban en el contenido de materia orgánica y el pH (relacionado con la presencia o ausencia de carbonatos) y en las propiedades del suelo asociadas. Los Fluvisoles tienden a tener problemas de salinización en condiciones de aridez, mientras que el mayor riesgo para los histosoles es el drenaje artificial.
format Other/Unknown Material
author Filipová, Ladislava
Hédl, Radim
Covacevich, Nilo C.
author_facet Filipová, Ladislava
Hédl, Radim
Covacevich, Nilo C.
author_sort Filipová, Ladislava
title Variability of soil types in wetland meadows in the south of the Chilean Patagonia
title_short Variability of soil types in wetland meadows in the south of the Chilean Patagonia
title_full Variability of soil types in wetland meadows in the south of the Chilean Patagonia
title_fullStr Variability of soil types in wetland meadows in the south of the Chilean Patagonia
title_full_unstemmed Variability of soil types in wetland meadows in the south of the Chilean Patagonia
title_sort variability of soil types in wetland meadows in the south of the chilean patagonia
publisher Instituto de Investigaciones Agropecuarias, INIA
publishDate 2010
url http://www.bioline.org.br/abstract?id=cj10029
op_coverage Origin of publication: Chile
long_lat ENVELOPE(-63.639,-63.639,-65.059,-65.059)
ENVELOPE(-62.933,-62.933,-64.883,-64.883)
geographic Azufre
Magallanes
Patagonia
Referencia
geographic_facet Azufre
Magallanes
Patagonia
Referencia
genre Antártica
genre_facet Antártica
op_source Chilean Journal of Agricultural Research (ISSN: 0718-5820) Vol 70 Num 2
op_relation http://www.inia.cl; http://www.bioline.org.br/cj
http://www.bioline.org.br/abstract?id=cj10029
op_rights Copyright 2010 Chilean Journal of Agricultural Research.
_version_ 1766288597155053568
spelling ftbiolineint:cria:bioline:cj:cj10029 2023-05-15T14:16:30+02:00 Variability of soil types in wetland meadows in the south of the Chilean Patagonia Variabilidad de tipos de suelos en las vegas del sur de la Patagonia Chilena Filipová, Ladislava Hédl, Radim Covacevich, Nilo C. Origin of publication: Chile 2010-12-21 html http://www.bioline.org.br/abstract?id=cj10029 en eng Instituto de Investigaciones Agropecuarias, INIA http://www.inia.cl; http://www.bioline.org.br/cj http://www.bioline.org.br/abstract?id=cj10029 Copyright 2010 Chilean Journal of Agricultural Research. Chilean Journal of Agricultural Research (ISSN: 0718-5820) Vol 70 Num 2 Histosol Fluvisol peat soil properties salinization soil degradation Histosoles Fluvisoles turba propiedades del suelo salinización degradación del suelo AA 2010 ftbiolineint 2015-11-02T20:56:53Z The wetland meadows and pastures (vegas) of the agricultural zone of the Magallanes Region and the Chilean Patagonia are productive and intensively exploited ecosystems. However, there is scarce data about the typology and the physical and chemical properties of the soils that determine the agricultural potential of vegas sites. Sampling of the main horizons of 47 soil profiles was conducted throughout the area. The profiles were described in the field and consequently classified according to the soil typology system of the WRB (IUSS Working Group WRB, 2006). Analyses of bulk and particle densities, capillary water capacity, pH (H 2 0), pH (CaC1 2 ), texture, organic material, C:N ratio, electrical conductivity, effective cation exchange capacity, N, P, Ca-Mg-K-Na, exchangeable Al, extractable Al, sulfur SO4 2- , B, and micronutrients (Cu-Zn-Mn-Fe) were carried out. The most frequently recorded groups of soil types in the studied vegas were Histosols - peat soils (20 profiles), and Fluvisols (19). Gleysols (3), Vertisols (1), Regosols (3), Solonchaks (1) and Solonetzs (1) were detected with much less frequency. There is also considerable variability in soil properties among and within the groups of soil types. The principal differences between the Histosols and the Fluvisols are the content of organic matter (often peat), pH level (related to the absence/presence of carbonates) and associated soil properties. Fluvisols are more susceptible to salinization under conditions of aridity, whereas the main threat to Histosols is artificial drainage. Las praderas húmedas (vegas) de la zona de uso agropecuario de la Región de Magallanes y la Antártica Chilena son ecosistemas productivos e intensamente explotados. No obstante, los conocimientos de los factores edáficos que determinan el potencial de las vegas son escasos. En este trabajo se realizó el muestreo de los horizontes principales de 47 perfiles del suelo de distintos tipos de vegas de la zona. Los perfiles se describieron y se clasificaron siguiendo el sistema de WRB (IUSS Working Group WRB, 2006). Se realizaron análisis de densidad aparente, capilaridad, pH al agua, pH al CaCl2, textura, materia orgánica, relación C/N, conductividad eléctrica, capacidad intercambio catiónico efectiva (ECEC), N mineral, P, Ca-Mg-K- Na, Al intercambio, Al extractable, azufre SO4 2- , B y micronutrientes (Cu-Zn-Mn-Fe). Los grupos de suelos de referencia más comunes en las vegas de la zona son los Histosoles o turbas (20 perfiles) y los Fluvisoles (19). Raramente se pueden detectar los Gleysoles (3), los Vertisoles (1), los Regosoles (2), los Solonchaks (1) y los Solonetzs (1). Existe una considerable variabilidad en las propiedades de los suelos de las vegas entre y también dentro de los grupos de referencia. Las mayores diferencias entre los Histosoles y los Fluvisoles estriban en el contenido de materia orgánica y el pH (relacionado con la presencia o ausencia de carbonatos) y en las propiedades del suelo asociadas. Los Fluvisoles tienden a tener problemas de salinización en condiciones de aridez, mientras que el mayor riesgo para los histosoles es el drenaje artificial. Other/Unknown Material Antártica Bioline International (Reference Center on Environmental Information, Brazil) Azufre ENVELOPE(-63.639,-63.639,-65.059,-65.059) Magallanes ENVELOPE(-62.933,-62.933,-64.883,-64.883) Patagonia Referencia