[1691] - Impacts of soil moisture variability on the sap flow activity of Norway spruce

All available metadata of the dataset is listed below. Some features are available, e.g. download of dataset or additional description file.

By downloading files from this dataset you accept the license terms of TR32DB Data policy agreement and TR32DBData Protection Statement.
Adequate reference when this dataset will be discussed or used in any publication or presentation is mandatory. In this case please contact the dataset creator.
VERY IMPORTANT!
Due to the speed of the filesystem and depending on the size of the archive and the file to be extracted, it may take up to thirty (!) minutes until a download is ready! Beware of that when confirming since you may not close the tab because otherwise, you will not get your file!
Features
Citation
Rabbel, I., 2017. Impacts of soil moisture variability on the sap flow activity of Norway spruce. PhD Report, Department of Geography, University of Bonn, Bonn. Accessed from https://www.tr32db.uni-koeln.de/data.php?dataID=1691 at 2019-08-20.
Citation Options
Export as: Select the file format for your download.Citation style: Select the displayed citation style.
Identification
Title(s):Main Title: Impacts of soil moisture variability on the sap flow activity of Norway spruce
Subtitle: 5th PhD report, Inken Rabbel, 2017
Description(s):Abstract: Tree water use is a key variable in forest eco-hydrological studies and often monitored by sap flow measurements. One current challenge in the scaling of sap flow from the tree to the forest stand is related to the spatio-temporal heterogeneity of soil water supply. Little is known about the water-stress-response of forest trees. This study aims at a better understanding and quantification of the water stress response of Norway spruce (Picea abies). We combine root-zone water potential simulations in HYDRUS 1-D with a plant water stress factor derived from sap flow measurements at three plots of differing soil moisture regimes. By calibrating HYDRUS 1-D against our sap flow data, we quantify species-specific water stress thresholds. We show that mature Norway spruce is able to maintain its optimum level of transpiration up to soil water potentials of -1000 to -3000 cm pressure head. Transpiration is reduced by aeration stress at water potentials of less than -100 cm pressure head. These findings provide a new basis for future simulation studies and will help to improve the upscaling of transpiration fluxes from the tree to the forest stand and catchment.
Responsible Party
Creator(s):Author: Inken Rabbel
Publisher:CRC/TR32 Database (TR32DB)
Topic
TR32 Topic:Vegetation
Related Sub-project(s):C1
Subject(s):CRC/TR32 Keywords: Sap Flow, Soil Moisture, Hydrological Modelling
Topic Category:Environment
File Details
File Name:Manuscript_Rabbel.pdf
Data Type:Text
File Size:826 kB (0.807 MB)
Date(s):Created: 2017-09-07
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
Constraints
Download Permission:OnlyTR32
General Access and Use Conditions:According to the TR32DB data policy agreement.
Access Limitations:According to the TR32DB data policy agreement.
Licence:TR32DB Data policy agreement
Geographic
North:-no map data
East:-
South:-
West:-
Measurement Region:Erkensruhr
Measurement Location:Wüstebach
Specific Informations - Report
Report Date:7th of September, 2017
Report Type:PhD Report
Report City:Bonn
Report Institution:Department of Geography, University of Bonn
Metadata Details
Metadata Creator:Inken Rabbel
Metadata Created:2017-09-07
Metadata Last Updated:2017-09-07
Subproject:C1
Funding Phase:3
Metadata Language:English
Metadata Version:V42
Dataset Metrics
Page Visits:299
Metadata Downloads:0
Dataset Downloads:0
Dataset Activity
Features