Article (Scientific journals)
Estimating the parameters of a 3-D root distribution function from root observations with the trench profile method: case study with simulated and field-observed root data
Vansteenkiste, Joachim; Van Loon, Jelle; Garré, Sarah et al.
2013In Plant and Soil, 375 (1-2), p. 75-88
Peer Reviewed verified by ORBi
 

Files


Full Text
PLSO-D-13-00670_review copy.pdf
Author preprint (2.14 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
root modeling; spatial distribution; root intersections; RootTyp; cauliflower; leek
Abstract :
[en] Background and Aims Root length density (RLD) is a parameter that is difficult to measure, but crucial to estimate water and nutrient uptake by plants. In this study a novel approach is presented to characterize the 3-D root length distribution by supplementing data of the 3-D distribution of root intersections with data of root length density from a limited number of soil cores. Methods The method was evaluated in a virtual experiment using the RootTyp model and a field experiment with cauliflower (Brassica oleracea L. botrytis) and leek (Allium porrum, L.). Results The virtual experiment shows that total root length and root length distribution can be accurately estimated using the novel approach. Implementation of the method in a field experiment was successful for characterizing the growth of the root distribution with time both for cauliflower and leek. In contrast with the virtual experiment, total root length could not be estimated based upon root intersection measurements in the field. Conclusions The novel method of combining root intersection data with root length density data from core samples is a powerful tool to supply root water uptake models with root system information.
Disciplines :
Agriculture & agronomy
Author, co-author :
Vansteenkiste, Joachim
Van Loon, Jelle
Garré, Sarah  ;  Université de Liège - ULiège > Sciences et technologie de l'environnement > Systèmes Sol-Eau
Pagès, Loïc
Schrevens, Eddie
Diels, Jan
Language :
English
Title :
Estimating the parameters of a 3-D root distribution function from root observations with the trench profile method: case study with simulated and field-observed root data
Publication date :
2013
Journal title :
Plant and Soil
ISSN :
0032-079X
eISSN :
1573-5036
Publisher :
Springer, Dordrecht, Netherlands
Volume :
375
Issue :
1-2
Pages :
75-88
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 October 2013

Statistics


Number of views
98 (8 by ULiège)
Number of downloads
3 (3 by ULiège)

Scopus citations®
 
20
Scopus citations®
without self-citations
16
OpenCitations
 
20

Bibliography


Similar publications



Contact ORBi