Effects of landuse and weathering on available nutrients in volcanic ash soils of Costa Rica: a comparative study

Effects of landuse and weathering on available nutrients in volcanic ash soils of Costa Rica: a comparative study

Figuras, tablas, 76 ref. También como: Field Report - CATIE. Research Program on Sustainability in Agriculture; no. 108

Bibliographic Details
Main Author: Gerrits, S.
Other Authors: CATIE - Centro Agronómico Tropical de Investigación y Enseñanza
Format: Reporte
Language:Inglés
Published: CATIE, Turrialba (Costa Rica) | Ministerio de Agricultura y Ganadería, San José (Costa Rica) | Agricultural University of Wageningen, Wageningen (Países Bajos) 2014
Subjects:
UTILIZACIÓN DE LA TIERRA
METEORIZACIÓN
TIPOS DE SUELOS
SUELO VOLCÁNICO
FERTILIDAD DEL SUELO
CONTENIDO DE AGUA EN EL SUELO
COSTA RICA
Sede Central
Online Access:https://repositorio.catie.ac.cr/handle/11554/1497
id RepoCATIE1497
record_format dspace
spelling RepoCATIE14972021-12-22T19:22:58Z Effects of landuse and weathering on available nutrients in volcanic ash soils of Costa Rica: a comparative study Gerrits, S. CATIE - Centro Agronómico Tropical de Investigación y Enseñanza UTILIZACIÓN DE LA TIERRA METEORIZACIÓN TIPOS DE SUELOS SUELO VOLCÁNICO FERTILIDAD DEL SUELO CONTENIDO DE AGUA EN EL SUELO COSTA RICA Sede Central Figuras, tablas, 76 ref. También como: Field Report - CATIE. Research Program on Sustainability in Agriculture; no. 108 In the present study two soiltypes, a highly depleted, old soil and a young, fertile soil are compared under three landuse types. The focus of the study is soil moisture and its chemical composition. As a reference, soil sample analyses and mineralogical data are used. Due to a higher data resolution of the young soil sampling period, the young soil data are treated more extensively. In the weathering of the young soil under forest, NO3 and other organic acids were found to play a major role, even though average pH values were still high (about 5). Rain events triggered biomass decomposition to high levels within a day, reflecting the high activity of soil organisms. The conversion of forest to grassland on young soil was found to enhance the base saturation of the soil and lower the Ca/Mg ratio on the exchange complex and in soil moisture, indicating that a main after effect of logging on these soils is enhanced weathering. The main proton donor for this enhanced weathering (CO2) is thought to come from the decay of refractory forest remains and humic material in the soil. The conversion of grassland to plantation led to a lowered base saturation accompanied with extreme concentrations of nutrients in the soil moisture, reflection the ineffectiveness of used fertilisation techniques. In the old soil under forest, nutrient losses were, as expected, much lower than in the young soil. Seaspray was found to have a large influence on the old soil forest nutrient regime. The conversion to grassland on old soil resulted in a lowered base saturation, because the main nutrient holding compartment, the vegetation, (and its seaspray scavenging ability) was removed. Conversion to plantation led to a situation similar to that of the young soil plantation, along with a pronounced dryness. 2014-10-17T14:44:17Z 2014-10-17T14:44:17Z 1997 Reporte 353722 https://repositorio.catie.ac.cr/handle/11554/1497 en Report - Research Program on Sustainability in Agriculture; / CATIE-WAU-MAG; number 108 info:eu-repo/semantics/openAccess application/pdf CATIE, Turrialba (Costa Rica) | Ministerio de Agricultura y Ganadería, San José (Costa Rica) | Agricultural University of Wageningen, Wageningen (Países Bajos)
institution Centro Agronómico Tropical de Investigación y Enseñanza
collection Repositorio CATIE
language Inglés
topic UTILIZACIÓN DE LA TIERRA
METEORIZACIÓN
TIPOS DE SUELOS
SUELO VOLCÁNICO
FERTILIDAD DEL SUELO
CONTENIDO DE AGUA EN EL SUELO
COSTA RICA
Sede Central
spellingShingle UTILIZACIÓN DE LA TIERRA
METEORIZACIÓN
TIPOS DE SUELOS
SUELO VOLCÁNICO
FERTILIDAD DEL SUELO
CONTENIDO DE AGUA EN EL SUELO
COSTA RICA
Sede Central
Gerrits, S.
Effects of landuse and weathering on available nutrients in volcanic ash soils of Costa Rica: a comparative study
description Figuras, tablas, 76 ref. También como: Field Report - CATIE. Research Program on Sustainability in Agriculture; no. 108
author2 CATIE - Centro Agronómico Tropical de Investigación y Enseñanza
author_facet CATIE - Centro Agronómico Tropical de Investigación y Enseñanza
Gerrits, S.
format Reporte
author Gerrits, S.
author_sort Gerrits, S.
title Effects of landuse and weathering on available nutrients in volcanic ash soils of Costa Rica: a comparative study
title_short Effects of landuse and weathering on available nutrients in volcanic ash soils of Costa Rica: a comparative study
title_full Effects of landuse and weathering on available nutrients in volcanic ash soils of Costa Rica: a comparative study
title_fullStr Effects of landuse and weathering on available nutrients in volcanic ash soils of Costa Rica: a comparative study
title_full_unstemmed Effects of landuse and weathering on available nutrients in volcanic ash soils of Costa Rica: a comparative study
title_sort effects of landuse and weathering on available nutrients in volcanic ash soils of costa rica: a comparative study
publisher CATIE, Turrialba (Costa Rica) | Ministerio de Agricultura y Ganadería, San José (Costa Rica) | Agricultural University of Wageningen, Wageningen (Países Bajos)
publishDate 2014
url https://repositorio.catie.ac.cr/handle/11554/1497
work_keys_str_mv AT gerritss effectsoflanduseandweatheringonavailablenutrientsinvolcanicashsoilsofcostaricaacomparativestudy
_version_ 1808117219076341760

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