Impacts of land management on the resilience of mediterranean dry forests to fire

Jucker Riva, Matteo; Liniger, Hanspeter; Valdecantos, Alejandro; Schwilch, Gudrun (2016). Impacts of land management on the resilience of mediterranean dry forests to fire. Sustainability, 8(10), p. 981. MDPI 10.3390/su8100981

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Wildfires have always been a part of the history of Mediterranean forests. However, forests are not always certain to regenerate after a wildfire. Whether they do depends on many factors, some of which may be influenced by land management activities. Failure to regenerate will cause a regime shift in the ecosystem, reducing the provision of ecosystem services and ultimately leading to desertification. How can we increase the resilience of Mediterranean forests to fire? Our approach to answering this question was twofold: first, we reviewed the literature to investigate chains of processes that allowed forests to regenerate (which we label Regeneration Mechanisms, or RMs); and second, we assessed the impact of selected management practices documented in the WOCAT database on these RMs. For the assessment, we evaluated the relation between the benefits and disadvantages of the land management practices on the one hand, and the hindering and supporting factors of the RMs on the other. We identified three distinct RMs that enable Mediterranean forests to recover, as well as the time frame before and after a fire in which they are at work, and factors that can hinder or support resilience. The three RMs enabling a forest to regenerate after a fire consist of regeneration (1) from a seed bank; (2) from resprouting individuals; and (3) from unburned plants that escaped the fire. Management practices were grouped into four categories: (1) fuel breaks; (2) fuel management; (3) afforestation; and (4) mulching. We assessed how and under what conditions land management modifies the ecosystem’s resilience. The results show that land management influences resilience by interacting with resilience mechanisms before and after the fire, and not just by modifying the fire regime. Our analysis demonstrates a need for adaptive—i.e., context- and time-specific—management strategies.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geography > Integrative Geography > Unit Sustainable Land Management
08 Faculty of Science > Institute of Geography > Integrative Geography
08 Faculty of Science > Institute of Geography
10 Strategic Research Centers > Centre for Development and Environment (CDE)

Graduate School:

International Graduate School North-South (IGS North-South)

UniBE Contributor:

Jucker Riva, Matteo; Liniger, Hanspeter and Schwilch, Gudrun

ISSN:

2071-1050

Publisher:

MDPI

Projects:

[423] Catastrophic shifts in drylands Official URL

Language:

English

Submitter:

Stephan Schmidt

Date Deposited:

10 Jan 2017 09:10

Last Modified:

08 Sep 2017 16:55

Publisher DOI:

10.3390/su8100981

BORIS DOI:

10.7892/boris.91022

URI:

https://boris.unibe.ch/id/eprint/91022

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