Local neighbourhood tree species composition effects in young forest stands: Impact of stress, species identity and multitrophic interactions

Mathias Dillen

Local neighbourhood tree species composition effects in young forest stands: Impact of stress, species identity and multitrophic interactions

Vertaalde titel van de bijdrage: Effecten van naburige boomsoortensamenstelling in jonge bosopstanden: Impact van stress, soortidentiteit en multitrofe interacties

Mathias Dillen

Smit group - Experimental Conservation Ecology

Onderzoeksoutput

1004 Downloads (Pure)

Samenvatting

In dit promotieonderzoek werd nagegaan hoe en waarom verschillen in boomsoortensamenstelling het functioneren van bosecosystemen kunnen beïnvloeden. Daarnaast werd gepoogd te testen hoe deze invloed kan veranderen indien er stresscondities voor de bomen optreden. Eerst werden biomassa en andere groeikarakteristieken gemeten in een Belgische Korte Omloophout site, waar verschillende hoogproductieve Zweedse wilgenklonen waren gemengd. De metingen werden uitgevoerd na twee en vier groeiseizoenen sinds de aanplant, voor de eerste oogst. Daarenboven werd gedurende drie groeiseizoenen de invloed op jonge zaailingen van eik nagegaan in twee Belgische jonge bosopstanden, die deel uitmaken van het FORBIO project. Hier werd zowel gekeken naar groei als bovengrondse en ondergrondse biomassa. Bovendien werden deze boomeigenschappen in verband gebracht met beschaduwing door naburige bomen en infecties door eikenmeeldauw, een belangrijke bladschimmel. Ook werd gekeken naar potentiële biologische controle van deze schimmel door het citroenlieveheersbeestje, zowel bij de situatie in het veld als onder beter gecontroleerde labo condities. De invloed van waterstress werd gesimuleerd door een experimentele behandeling waarbij een deel van de zomerse neerslag werd geïntercepteerd van de jonge boompjes.

Vertaalde titel van de bijdrage	Effecten van naburige boomsoortensamenstelling in jonge bosopstanden: Impact van stress, soortidentiteit en multitrofe interacties
Originele taal-2	English
Kwalificatie	Doctor of Philosophy
Toekennende instantie	Rijksuniversiteit Groningen
Begeleider(s)/adviseur	Smit, Christian, Supervisor Verheyen, Kris, Supervisor, Externe Persoon
Datum van toekenning	29-sep.-2017
Plaats van publicatie	[Groningen]
Uitgever	University of Groningen
Gedrukte ISBN's	978-94-6357-023-7
Status	Published - 2017

Toegang tot document

Title and contentsFinal publisher's version, 208 KB
Chapter 1Final publisher's version, 722 KB
Chapter 2Final publisher's version, 1,18 MB
Chapter 3Final publisher's version, 1,36 MB
Chapter 4Final publisher's version, 1,58 MB
Chapter 6Final publisher's version, 712 KB
Chapter 7Final publisher's version, 109 KB
ReferencesFinal publisher's version, 162 KB
Curriculum VitaeFinal publisher's version, 143 KB
Complete thesisFinal publisher's version, 6,72 MB
PropositionsFinal publisher's version, 85,3 KB

Handle.net

Permanente koppeling

Citeer dit

@phdthesis{89d47b7d981e4292937711cc1e3482a0,

title = "Local neighbourhood tree species composition effects in young forest stands: Impact of stress, species identity and multitrophic interactions",

abstract = "In this PhD research it was assessed how and why differences in tree species composition can influence the functioning of forest ecosystems. In addition, an attempt was made to test how this influence can change if conditions of stress occur for the trees. First, biomass and other growth characteristics were measured in a Belgian Short Rotation Coppice site, where different highly productive Swedish willow clones were mixed. The measurements were performed after two and four growing seasons since planting, before the first harvest. Second, during three growing seasons the influence of young oak saplings was assessed in two Belgian young forest stands, which are part of the FORBIO project. Here, growth as well as above- and belowground biomass were studied. Furthermore, these tree characteristics were linked to shading by neighbouring trees and infections by oak powdery mildew, an important leaf fungus. Also looked at was potential biological control of this fungus by the 22-spot ladybird, as well in the field as under better controlled lab conditions. The influence of water stress was simulated by an experimental treatment where a portion of summer precipitation was intercepted from the saplings.",

author = "Mathias Dillen",

year = "2017",

language = "English",

isbn = "978-94-6357-023-7",

publisher = "University of Groningen",

school = "University of Groningen",

}

TY - BOOK

T1 - Local neighbourhood tree species composition effects in young forest stands

T2 - Impact of stress, species identity and multitrophic interactions

AU - Dillen, Mathias

PY - 2017

Y1 - 2017

N2 - In this PhD research it was assessed how and why differences in tree species composition can influence the functioning of forest ecosystems. In addition, an attempt was made to test how this influence can change if conditions of stress occur for the trees. First, biomass and other growth characteristics were measured in a Belgian Short Rotation Coppice site, where different highly productive Swedish willow clones were mixed. The measurements were performed after two and four growing seasons since planting, before the first harvest. Second, during three growing seasons the influence of young oak saplings was assessed in two Belgian young forest stands, which are part of the FORBIO project. Here, growth as well as above- and belowground biomass were studied. Furthermore, these tree characteristics were linked to shading by neighbouring trees and infections by oak powdery mildew, an important leaf fungus. Also looked at was potential biological control of this fungus by the 22-spot ladybird, as well in the field as under better controlled lab conditions. The influence of water stress was simulated by an experimental treatment where a portion of summer precipitation was intercepted from the saplings.

AB - In this PhD research it was assessed how and why differences in tree species composition can influence the functioning of forest ecosystems. In addition, an attempt was made to test how this influence can change if conditions of stress occur for the trees. First, biomass and other growth characteristics were measured in a Belgian Short Rotation Coppice site, where different highly productive Swedish willow clones were mixed. The measurements were performed after two and four growing seasons since planting, before the first harvest. Second, during three growing seasons the influence of young oak saplings was assessed in two Belgian young forest stands, which are part of the FORBIO project. Here, growth as well as above- and belowground biomass were studied. Furthermore, these tree characteristics were linked to shading by neighbouring trees and infections by oak powdery mildew, an important leaf fungus. Also looked at was potential biological control of this fungus by the 22-spot ladybird, as well in the field as under better controlled lab conditions. The influence of water stress was simulated by an experimental treatment where a portion of summer precipitation was intercepted from the saplings.

M3 - Thesis fully internal (DIV)

SN - 978-94-6357-023-7

PB - University of Groningen

CY - [Groningen]

ER -

Local neighbourhood tree species composition effects in young forest stands: Impact of stress, species identity and multitrophic interactions

Samenvatting

Toegang tot document

Handle.net

Vingerafdruk

Citeer dit