KIT | KIT-Bibliothek | Impressum | Datenschutz
Open Access Logo
§
Verlagsausgabe
DOI: 10.5445/IR/1000082575
Veröffentlicht am 07.05.2018

Tree-, stand- and site-specific controls on landscape-scale patterns of transpiration

Hassler, Sibylle Kathrin; Weiler, Markus; Blume, Theresa

Abstract:
Transpiration is a key process in the hydrological cycle, and a sound understanding and quantification of transpiration and its spatial variability is essential for management decisions as well as for improving the parameterisation and evaluation of hydrological and soil–vegetation–atmosphere transfer models. For individual trees, transpiration is commonly estimated by measuring sap flow. Besides evaporative demand and water availability, tree-specific characteristics such as species, size or social status control sap flow amounts of individual trees. Within forest stands, properties such as species composition, basal area or stand density additionally affect sap flow, for example via competition mechanisms. Finally, sap flow patterns might also be influenced by landscape-scale characteristics such as geology and soils, slope position or aspect because they affect water and energy availability; however, little is known about the dynamic interplay of these controls.

We studied the relative importance of various tree-, stand- and site-specific characteristics with multiple linear regression models to explain the variability of sap ... mehr


Zugehörige Institution(en) am KIT Institut für Wasser und Gewässerentwicklung (IWG)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1027-5606, 1607-7938
URN: urn:nbn:de:swb:90-825753
KITopen ID: 1000082575
Erschienen in Hydrology and earth system sciences
Band 22
Heft 1
Seiten 13-30
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 04.01.2018
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft KITopen Landing Page