Description: Objectives: The original forest extent in the savannas (lavrados, a type of vegetation similar to the cerrados) in Northern Brazil is unknown. Prolonged use of fire for hunting and cattle ranching has left behind heavily degraded areas. Natural forests are extremely fragmented and soils are strongly compacted. The privately initiated afforestation project of Ouro Verde Ltda has already established more than 10,000 ha Acacia mangium plantations. The objective of this project is to get more information on the autecology of Acacia mangium and to integrate them into rehabilitation programmes for degraded land. In a greenhouse experiment tree seedlings of two provenances are grownunder controlled conditions at different fertiliser levels and soil textures. Their response to these treatments is investigated by means growth parameters. Results: Investigation of the nutrient - especielly phosphorus - supply of the leaves; Investigation of the above and belowground biomass production (leaf, stem, root); Examination of the influence of water and nutrient supply as well as of soil texture on plant growth; Impacts of growth reaction on the plantation programme of other projects of the Institute.
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Origins: /Bund/UBA/UFORDAT
Tags: Autökologie ? Baumstamm ? Vegetation ? Vieh ? Abfallbehandlung ? Baum ? Düngemittel ? Nährstoff ? Phosphor ? Gewächshaus ? Brunnen ? Pflanzenwurzel ? Brand ? Plantage ? Aufforstung ? Bewässerung ? Bodenart ? Naturwald ? Wasseruntersuchung ? Verdichtung ? Wasser ? Verbreitungsgebiet ? Wirkung ? Bodenaufbau ? Kenngröße ? Ernährung ? Jagd ? Wald ? Boden ? Produktion ? extrem ? Ergebnis ? Sämling ? nördlich ? Untersuchung ? Verantwortung ? Verhältnis ? Land ? Einsatz ? Laub ? Versorgung ? Mittel ? sonstig ? Wachstum [biologisch] ? stark ? Experiment ? Projekt ?
Region: Hamburg
Bounding boxes: 9.99302° .. 9.99302° x 53.55073° .. 53.55073°
License: cc-by-nc-nd/4.0
Language: Englisch/English
Time ranges: 2003-03-01 - 2006-12-31
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