Toward using δ¹³C of ecosystem respiration to monitor canopy physiology in complex terrain

In 2005 and 2006, air samples were collected at the base of a Douglas-fir watershed to monitor seasonal changes in the δ¹³CO₂ of ecosystem respiration (δ¹³CER). The goals of this study were to determine whether variations in δ¹³CER correlated with environmental variables and could be used to predict...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Oecologia 2008, Vol.158 (3), p.399-410
Hauptverfasser:	Pypker, T. G, Hauck, M, Sulzman, E. W, Unsworth, M. H, Mix, A. C, Kayler, Z, Conklin, D, Kennedy, A. M, Barnard, H. R, Phillips, C, Bond, B. J
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal and plant ecology Animal, plant and microbial ecology Biological and medical sciences Biomedical and Life Sciences Ecology Fundamental and applied biological sciences. Psychology General aspects Hydrology/Water Resources Life Sciences Physiological Ecology - Original Paper Plant Sciences Synecology
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	In 2005 and 2006, air samples were collected at the base of a Douglas-fir watershed to monitor seasonal changes in the δ¹³CO₂ of ecosystem respiration (δ¹³CER). The goals of this study were to determine whether variations in δ¹³CER correlated with environmental variables and could be used to predict expected variations in canopy-average stomatal conductance (G s). Changes in δ¹³CER correlated weakly with changes in vapor pressure deficit (VPD) measured 0 and 3-7 days earlier and significantly with soil matric potential (ψm) (P value
ISSN:	0029-8549 1432-1939
DOI:	10.1007/s00442-008-1154-3