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Site factors, foliar nutrient levels and growth of "Cordia alliodora" plantations in the humid lowlands of Northern Costa Rica

Titelangaben

Bergmann, C. ; Stuhrmann, Matthias ; Zech, Wolfgang:
Site factors, foliar nutrient levels and growth of "Cordia alliodora" plantations in the humid lowlands of Northern Costa Rica.
In: Plant and Soil. Bd. 166 (Oktober 1994) Heft 2 . - S. 193-202.
ISSN 1573-5036
DOI: https://doi.org/10.1007/BF00008333

Abstract

Within the perhumid, Atlantic lowlands of northern Costa Rica, Cordia alliodora plantations were studied in orderto explain the observed pattern of growth irregularities. The soils, that were partly used as pastures over longperiods, could be classified roughly into two units: (i) red, deeply weathered, slightly acidic soils from Mg-enrichedparent material and (ii) brown, strongly acidic soils with high saturation of exchangeable A1 (up to 80%).Leaf analysis revealed that Cordia is a highly demanding species in respect to macronutrients. Poorly growingtrees in slope position suffered from an insufficient supply of N and P. K/Mg ratios of chlorotic leaves are verylow. Soil analysis showed that nutrient deficiencies were related to (i) insufficient soil nutrient reserves of the poor,tropical soils or (ii) to an inhibition of nutrient uptake by soil physical or chemical factors.All sites are characterized by very low K reserves and losses of nutrients that are organically bound (N, P) causedby erosion. In the Mg-rich red soils, low amounts of K lead to K/Mg imbalances. Soil compaction caused bycattle grazing occurs on both soil units. It negatively influences the root development of Cordia, and hence nutrientuptake. In the brown soils, high amounts of exchangeable A1 hinder a sufficient supply of nutrients (e.g. P) to theassimilation organs.

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Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER6852
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Bodenökologie
Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Eingestellt am: 30 Okt 2015 07:19
Letzte Änderung: 30 Okt 2015 07:19
URI: https://eref.uni-bayreuth.de/id/eprint/21034