Baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties
We established fast-growing leguminous trees (Erythrina berteroana Urban) in native grass pastures in Costa Rica's Atlantic region to determine the effects of tree pruning and cattle grazing on soil phosphorus availability and pasture biomass production. The field experiment included a randomiz...
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| Formato: | Artículo |
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IICA, San José (Costa Rica)
2020
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| Acceso en línea: | https://repositorio.catie.ac.cr/handle/11554/9610 |
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RepoCATIE9610 |
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dspace |
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Centro Agronómico Tropical de Investigación y Enseñanza |
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Repositorio CATIE |
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Inglés |
| topic |
ERYTHRINA POEPPIGIANA ÁRBOLES DE PROPÓSITO MÚLTIPLE AGROFORESTERIA VARIEDADES DE ALTO RENDIMIENTO SISTEMAS AGROPASCICOLAS LEGUMINOSAS FORRAJERAS PASTIZALES PODA PASTOREO FÓSFORO SUELO BIOMASA ANDOSOLES TIPOS GENETICOS DE SUELOS NO METALES ELEMENTOS QUÍMICOS DENSIDAD DEL SUELO PH DEL SUELO ZONA TROPICAL COSTA RICA |
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ERYTHRINA POEPPIGIANA ÁRBOLES DE PROPÓSITO MÚLTIPLE AGROFORESTERIA VARIEDADES DE ALTO RENDIMIENTO SISTEMAS AGROPASCICOLAS LEGUMINOSAS FORRAJERAS PASTIZALES PODA PASTOREO FÓSFORO SUELO BIOMASA ANDOSOLES TIPOS GENETICOS DE SUELOS NO METALES ELEMENTOS QUÍMICOS DENSIDAD DEL SUELO PH DEL SUELO ZONA TROPICAL COSTA RICA Cooperband, L.R Logan, T.J Baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties |
| description |
We established fast-growing leguminous trees (Erythrina berteroana Urban) in native grass pastures in Costa Rica's Atlantic region to determine the effects of tree pruning and cattle grazing on soil phosphorus availability and pasture biomass production. The field experiment included a randomized complete block of four treatments which were replicated on five farms: grazing and trees, grazing-no trees, trees-no grazing, and no trees-no grazing (the control). In 1987, we conducted a complete baseline characterization of the study soil's chemical. physical and mineralogical properties (andic humitropept, series Neguev). Three years later, we remeasured exchangeable bases and acidity, soil pH, carbon and nitrogen contents, phosphorus forms and bulk density to evaluate both farm and treatment effects over time. The Neguev soil series is acid (pH 4.8 - 5.2), low in exchangeable bases (sum of bases -2.3 cmol/kg), high in exchangeable AI (>25% of ECEC), low in available P (2.8 mg P/kg midified Olsen extractable), yet high in total P (1385 mg P/kg). Soil bulk density was relatively low (0.84 - 0.91 g/cm3) and moisture retention capacity high (53% by volume at field capacity). The soil's mineralogy, dominated by kaolinite, gibbsite and irons oxides, is consistent with the oxic-andic nature exhibited by both chemical and physical properties. Over the three-years study period, soil organic C increased in the two no-grazing no tree control. Short-term changes in these parameters reflect the fallow-loke status incurred from no grazing. There were also significant declines in soil pH and exchangeable monovalent cations along with increases in exchangeable Al and Fe at the farm level. Concurrently, organic P reserves declined and NaHCO3- EDTA extractable P increased. Such changes may represent either gradual soil chemical changes associated with post-deforestation equilibrium shifts or normal fluctuations in the pasture ecosystem's inherent dynamic equilibrium. |
| format |
Artículo |
| author |
Cooperband, L.R Logan, T.J |
| author_facet |
Cooperband, L.R Logan, T.J |
| author_sort |
Cooperband, L.R |
| title |
Baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties |
| title_short |
Baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties |
| title_full |
Baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties |
| title_fullStr |
Baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties |
| title_full_unstemmed |
Baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties |
| title_sort |
baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties |
| publisher |
IICA, San José (Costa Rica) |
| publishDate |
2020 |
| url |
https://repositorio.catie.ac.cr/handle/11554/9610 |
| work_keys_str_mv |
AT cooperbandlr baselinesoilcharacteristicsofahumidtropicalsilvopastoralsystemandchangesinselectedsoilproperties AT logantj baselinesoilcharacteristicsofahumidtropicalsilvopastoralsystemandchangesinselectedsoilproperties |
| _version_ |
1808117564283289600 |
| spelling |
RepoCATIE96102023-11-08T19:35:50Z Baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties Cooperband, L.R Logan, T.J ERYTHRINA POEPPIGIANA ÁRBOLES DE PROPÓSITO MÚLTIPLE AGROFORESTERIA VARIEDADES DE ALTO RENDIMIENTO SISTEMAS AGROPASCICOLAS LEGUMINOSAS FORRAJERAS PASTIZALES PODA PASTOREO FÓSFORO SUELO BIOMASA ANDOSOLES TIPOS GENETICOS DE SUELOS NO METALES ELEMENTOS QUÍMICOS DENSIDAD DEL SUELO PH DEL SUELO ZONA TROPICAL COSTA RICA We established fast-growing leguminous trees (Erythrina berteroana Urban) in native grass pastures in Costa Rica's Atlantic region to determine the effects of tree pruning and cattle grazing on soil phosphorus availability and pasture biomass production. The field experiment included a randomized complete block of four treatments which were replicated on five farms: grazing and trees, grazing-no trees, trees-no grazing, and no trees-no grazing (the control). In 1987, we conducted a complete baseline characterization of the study soil's chemical. physical and mineralogical properties (andic humitropept, series Neguev). Three years later, we remeasured exchangeable bases and acidity, soil pH, carbon and nitrogen contents, phosphorus forms and bulk density to evaluate both farm and treatment effects over time. The Neguev soil series is acid (pH 4.8 - 5.2), low in exchangeable bases (sum of bases -2.3 cmol/kg), high in exchangeable AI (>25% of ECEC), low in available P (2.8 mg P/kg midified Olsen extractable), yet high in total P (1385 mg P/kg). Soil bulk density was relatively low (0.84 - 0.91 g/cm3) and moisture retention capacity high (53% by volume at field capacity). The soil's mineralogy, dominated by kaolinite, gibbsite and irons oxides, is consistent with the oxic-andic nature exhibited by both chemical and physical properties. Over the three-years study period, soil organic C increased in the two no-grazing no tree control. Short-term changes in these parameters reflect the fallow-loke status incurred from no grazing. There were also significant declines in soil pH and exchangeable monovalent cations along with increases in exchangeable Al and Fe at the farm level. Concurrently, organic P reserves declined and NaHCO3- EDTA extractable P increased. Such changes may represent either gradual soil chemical changes associated with post-deforestation equilibrium shifts or normal fluctuations in the pasture ecosystem's inherent dynamic equilibrium. Se sembraron árboles leguminosos de rápido crecimiento (Erythrina berteroana Urban) en pasturas naturalizada en la región atlántica de Costa Rica, para evaluar los efectos de la poda de los árboles y el pastoreo del ganado vacuno sobre la disponibilidad de P del suelo y la producción de biomasa de la pastura. El experimento incluyó los tratamientos: pastoreo y árboles; pastoreo sin árboles (control). Los tratamientos se plantaron en forma aleatoria en un bloque en cinco fincas diferentes. Las características químicas, físicas y mineralógicas básicas de estos suelos (andic humitropept, serie Neguev) se determinaron en 1987. Tres años más tarde, se midieron nuevamente las siguientes variables: bases intercambiables y acidez, pH, contenidos de C y N, diferentes formas de P, y densidad aparente. El objetivo fue determinar los cambios en los estados de estas variables en el tiempo, a nivel de la finca como de diferentes tratamientos. Los suelos de la serie Neguev son ácidos (pH 4.8 - 5.2), pobres en bases intercambiables (la suma de bases es 2.3 cmol subíndice c/kg), ricos en Al intercambiable (mayor que 25 por ciento del CICE) y bajos en P disponible (2.8 mg P/kg, según Olsen modificado) a pesar de los elevados niveles de P total (1385 mg P/kg). La densidad aparente del suelo es relativamente baja (0.84 - 0.91 g/cm3) y una elevada capacidad de retención de humedad (53 por ciento por volumen con el suelo a capacidad de retención de humedad (53 por ciento por volumen con el suelo a capacidad de campo). Las propiedades físico-químicas de estos suelos son una mezcla de rasgos de oxisoles y andosoles. Su mineralogía, dominada por caolinita, gibsita y óxidos de hierro, es congruente con estos órdenes de suelos. Al cabo de tres años, la cantidad de C orgánico del suelo aumentó en los dos tratamientos sin pastoreo, mientras que la densidad aparente del suelo disminuyó en el control (sin árboles y sin pastoreo). El barbecho de la pradera, una vez excluido el pastoreo, produjo cambios significativos en estos parámetros del suelo, aun en el corto período del estudio. A nievel de finca, se detectaron descensos significativos en el pH y en los cationes monovalentes intercambiables, y aumentos en el Al intercambiable y en hierro. Las reservas de P orgánico disminuyeron y el P que podría extraerse por Olsen modificado aumentó. Estos cambios se atribuirían a la dinámica natural de estos suelos después de la eliminación del bosque o a fluctuaciones normales en el equilibrio dinámico de la pradera. 2020-10-07T21:35:39Z 2020-10-07T21:35:39Z 1993-01 Artículo 0041-4360 https://repositorio.catie.ac.cr/handle/11554/9610 en Turrialba; Volumen 43, Número 1 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/4.0/ pdf application/pdf IICA, San José (Costa Rica) |