PhD theses

All Wageningen University PhD theses

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    Wageningen PhD theses


    This database contains bibliographic descriptions of all Wageningen University PhD theses from 1920 onwards. It is updated on a daily basis by WUR Library.

    Author abstracts and/or summaries are added to all descriptions. A link to the full text dissertation is added to the bibliographic description. In a few cases, no electronic version is available, mostly because of copyright issues.

    Hard copies of all theses are available for loan at WUR Library. To request them, click the link Request this publication in the full record presentation. This is a fee based service.

    mail icon WUR Library, 9 july 2012

     

Record number 2055382
Title Panarchy rules? : rethinking resilience of agroecosystems
show extra info.
Dirk F. van Apeldoorn
Author(s) Apeldoorn, D.F. van
Publisher Wageningen : Wageningen University
Publication year 2014
Description 137 pagina’s figuren, grafieken
Notes Proefschrift Wageningen University ter verkrijging van de graad van doctor in het jaar 2014show all notes
Met literatuuropgave. - Met samenvatting in het Engels en Nederlands
ISBN 9789461739179
Tutors Giller, Prof. dr. K.E. ; Kok, Dr. K. ; Sonneveld, Dr. M.P.W.
Graduation date 2014-04-22
Dissertation no. 5719
Author abstract show abstract

This thesis explores the applicability of the resilience perspective on agro-ecosystems dynamics. It start out by using the five heuristics of the resilience perspective on intensive agricultural systems. Simulations with a dynamic farm model suggest that conventional farming short cuts the adaptive cycle leading to an ‘incremental adaptation’ trap. Panarchy is therefore claimed as a leading heuristic to understand long-term dynamics and current management characteristics. This interaction of long-term dynamics with current management leads to an asymmetry in the landscape. This asymmetry leads to windows of opportunities for farmers. However, disregarding the cross-scale nature of the asymmetry might also lead to a cascade of events that undermine the resilience of the landscape as whole. The cross-scale interactions of landscape dynamics and farm management suggest a co-evolution of production intensity and landscape pattern. Moreover trajectories of intensification might even be linked to certain tipping points of combinations of landscape characteristics and management. Therefore the landscape asymmetry might yield insight in agro-ecosystem functioning. The landscape asymmetry potentially provides a level of self-organisation above the farm. However, identifying the asymmetry appeared to be problematic. Next to scale issues, the current pattern does not necessary result from current management, leading to a de-coupling of pattern and process. A re-coupling of management and landscape asymmetry can exploit positive feedbacks. I suggest the use of identity to locate asymmetries and to use space-time substitutions to experiment with the typical slow variables that shape the asymmetry.

The theory developed in this thesis is grounded on empirical farm management data and dynamical model simulation of intensive dairy farming in the Netherlands and small-holder systems in Zimbabwe.

Online full textINTERNET
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Keyword(s) agroecosystems / sustainability / farming systems / soil organic matter / mathematical models / systems analysis / netherlands / zimbabwe
Categories Agricultural Systems / Agroecosystems
Publication type PhD thesis
Language English
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