Description: Das Projekt "Water consumption and carbon capture by trees of an evergreen and a dry forest in the Andes of South Ecuador as functional indicators of slow environmental changes" wird vom Umweltbundesamt gefördert und von Universität Bayreuth, Fachgruppe Biologie, Bayreuther Zentrum für Ökologie und Umweltforschung (BayCEER), Lehrstuhl für Pflanzenphysiologie durchgeführt. This transfer project contributes to the development of a multifactorial indicator prototype for global change effects. It uses water and carbon relations of trees as primary functional indicators of subtle environmental changes which cannot be directly observed. Acquisition of carbon by a tree and its concomitant water loss by transpiration is coupled as water use efficiency (WUE), which as a parameter integrating two ecophysiological processes should display a high sensitivity to ambiental conditions. The project is based on a new model allowing computation of the entire crown. Parameterization of the model is by data of leaf gas exchange, total water loss, and structural data of the crown. Total water consumption will be determined either by stem flow monitoring or by the D2O injection method. Net carbon gain by the entire crown can be calculated from a crown-specific WUE. The described measurements will be supplemented by data on stem growth, phenology (longevity of leaves and foliage dynamics), long-term water relations (13C discrimination data) and tree hydrology (natural abundance of deuterium). To extend the indicator from the single tree scale to a wider area, project C5 will collaborate with project C6 which will investigate WUE using multispectral satellite and airborne data. For calibration transfer functions to remotely sensed data must be developed. Since Eddie covariance analysis cannot be used, project C6 will measure atmospheric dynamics of heat and water vapour above the canopy of an assemblage of such trees by scintillometry. These measurements shall be calibrated by C5. Of all trees on the study plots total transpiration will be measured and correlated with simultaneously recorded scintillometer data. Thus projects C5 and C6 will use the same plots and trees. Using the calibrated scintillometer data, project C6 will up-scale the functional indicator WUE to the landscape level. Because of their general applicability, functional indicators like WUE are especially useful for modelling approaches.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Wasserwiederverwendung ? Baumstamm ? Pflanzenphysiologie ? Waldbaum ? Baum ? Brüden ? Kalibrierung ? Kohlenstoff ? Ökologie ? Pflanzensamen ? Satellitendaten ? Skigebiet ? Transpiration ? Wasserdampf ? Anden ? Ecuador ? Gelöster organischer Kohlenstoff ? Betriebswasser ? Deuterium ? Gewässerüberwachung ? Laubblatt ? Satellit ? Verfahrensparameter ? Wasserreinigung ? Wasserverbrauch ? Wirkung ? Wirkung ? Gewässerzustand ? Messdaten ? Phänologie ? Studie ? Umweltforschung ? Berechnungsverfahren ? Beschaffung ? Wassernutzung ? Bewässerung ? Daten ? Wasser ? Modellierung ? Wertermittlung ? Schaden ? Globale Veränderung ? Gasaustausch ? Messung ? Wassereffizienz ? Umweltindikator ? Kenngröße ? Umweltveränderung ? Heizung ? Landschaft ? Hydrologie ? Maßnahme ? Ballungsraum ? Umwelt ? Indikator ? Atmosphärendynamik ? EINSATZ ? NEU ? PROJEKT ? SPEZIFISCH ? GEKOPPELT ? Isolierung ? SUEDLICH ? VERHAELTNIS ? VERSCHIEBUNG ? Wachstum [biologisch] ? ANDEN ? Laub ? Maßstabsvergrößerung ? METHODE ? BAEUME ?
Region: Bayern
Bounding box: 12.53381° .. 12.53381° x 47.795° .. 47.795°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2010-01-01 - 2013-12-31
Webseite zum Förderprojekt
http://www.tropicalmountainforest.org/ (Webseite)Accessed 1 times.