Description: Das Projekt "Impact of elevated nitrogen inut on the biogeochemistry and productivity of tropical forests (NITROF) - Effects of enhanced N deposition on productivity and structure of a tropical montane rainforest in Panama" wird vom Umweltbundesamt gefördert und von Universität Göttingen, Institut für Bodenkunde und Waldernährung durchgeführt. Nitrogen deposition in tropical areas is projected to increase rapidly in the next decades due to increase in N fertilizer use, fossil fuel consumption and biomass burning. As tropical forest ecosystems cover about 17 percent of the land surface and are responsible for about 40 percent of net primary production, even small changes in N (and consequently C) cycling can have global consequences. Until now studies an consequences of enhanced N input in tropical forest ecosystems have been very limited and even very rarely addressed its deleterious effects to the environment. There is undoubtedly a huge discrepancy between the expected increase in N deposition in the tropics and the present knowledge an how tropical forest ecosystems will react to this extra input of reactive N. Our research aims at quantifying the changes in processes of N retention (plant growth, biotic and abiotic N immobilization in the soil) and losses (gaseous N losses, nitrification, denitrification, leaching of different forms of dissolved N). Implementation of policy and management tools, like the international trading of carbon credits under the Kyoto Protocol, need researches that allow us to better understand the consequences of environmental change (N deposition) an forest productivity. Our research will have important implications for predicting future responses of forest C cycle to changes in N deposition, and for the role of N deposition in tropical forests to affect potential feedback mechanisms of CO2 fertilization and climate change.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Denitrifikation ? Göttingen ? Fossiler Brennstoff ? Panama ? Bodennährstoff ? Bodenstickstoff ? Biogeochemie ? Düngemittel ? Kohlenstoff ? Kraftstoffverbrauch ? Nitrifikation ? Stickstoff ? Kyoto-Protokoll ? Waldökosystem ? Gelöster organischer Kohlenstoff ? Kohlendioxid ? Schadstoffimmission ? Verbrennung ? Prognose ? Gasförmiger Stoff ? Brand ? Bodenkunde ? Kohlenstoffkreislauf ? Management ? Terrestrisches Ökosystem ? Quantitative Analyse ? Regenwald ? Auslaugung ? Studie ? Tropengebiet ? Tropenwald ? Abiotischer Faktor ? Urwald ? Düngung ? Zukunftsforschung ? Wirkungsforschung ? Boden ? Denitrifikationsanlage ? Bergwald ? Umweltveränderung ? Biomasse ? Produktivität ? Wald ? Gebirge ? Räumliche Mobilität ? Globale Aspekte ? Klimawandel ? Ökonomisches Instrument ? Ökosystem ? Biomasseproduktion ? Pflanzenwachstum ? Kyoto-Protokoll [Klimaschutzvertrag 1997] ? Primärproduktion ? Retention [Wasserwirtschaft] ? Wachstum [biologisch] ?
Region: Lower Saxony
Bounding box: 9.16667° .. 9.16667° x 52.83333° .. 52.83333°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2005-07-01 - 2024-11-29
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