Ecological mitigation of hillslope instability: ten key issues facing researchers and practitioners

Stokes Alexia, Douglas Grant B., Fourcaud Thierry, Giadrossich Filippo, Gillies Clayton, Hubble Thomas, Kim John H., Loades Kenneth W., Mao Zhun, Mclvor Ian R., Mickovski Slobodan B., Mitchell Stephen, Osman Normaniza, Phillips Chris, Poesen Jean, Polster Dave, Preti Federico, Raymond Pierre, Rey Freddy, Schwarz Massimiliano, Walker Lawrence R.. 2014. Ecological mitigation of hillslope instability: ten key issues facing researchers and practitioners. Plant and Soil, 377 (1-2) : 1-23.

Quartile : Q1, Sujet : AGRONOMY / Quartile : Q1, Sujet : SOIL SCIENCE / Quartile : Q1, Sujet : PLANT SCIENCES

Résumé : Background Plants alter their environment in a number of ways. With correct management, plant communities can positively impact soil degradation processes such as surface erosion and shallow landslides. However, there are major gaps in our understanding of physical and ecological processes on hillslopes, and the application of research to restoration and engineering projects. Scope To identify the key issues of concern to researchers and practitioners involved in designing and implementing projects to mitigate hillslope instability, we organized a discussion during the Third International Conference on Soil Bio- and Eco-Engineering: The Use of Vegetation to Improve Slope Stability, Vancouver, Canada, July 2012. The facilitators asked delegates to answer three questions: (i) what do practitioners need from science? (ii) what are some of the key knowledge gaps? (iii) what ideas do you have for future collaborative research projects between practitioners and researchers? From this discussion, ten key issues were identified, considered as the kernel of future studies concerning the impact of vegetation on slope stability and erosion processes. Each issue is described and a discussion at the end of this paper addresses how we can augment the use of ecological engineering techniques for mitigating slope instability. Conclusions We show that through fundamental and applied research in related fields (e.g., soil formation and biogeochemistry, hydrology and microbial ecology), reliable data can be obtained for use by practitioners seeking adapted solutions for a given site. Through fieldwork, accessible databases, modelling and collaborative projects, awareness and acceptance of the use of plant material in slope restoration projects should increase significantly, particularly in the civil and geotechnical communities.

Mots-clés Agrovoc : lutte antiérosion, terre en pente, conservation des sols, glissement de terrain, écologie, plante antiérosive, digue, hydrologie

Classification Agris : P36 - Érosion, conservation et récupération des sols
F01 - Culture des plantes

Champ stratégique Cirad : Axe 6 (2014-2018) - Sociétés, natures et territoires

Auteurs et affiliations

• Stokes Alexia, INRA (FRA)
• Douglas Grant B., AgResearch (NZL)
• Fourcaud Thierry, CIRAD-BIOS-UMR AMAP (FRA) ORCID: 0000-0001-9475-7239
• Giadrossich Filippo, Universita di Sassari (ITA)
• Gillies Clayton, FPInnovations (CAN)
• Hubble Thomas, University of Sydney (AUS)
• Kim John H., INRA (FRA)
• Loades Kenneth W., The James Hutton Institute (GBR)
• Mao Zhun, IRSTEA (FRA)
• Mclvor Ian R., New Zealand Institute for Plant and Food Research (NZL)
• Mickovski Slobodan B., University of Glasgow (GBR)
• Mitchell Stephen, University of British Columbia (CAN)
• Osman Normaniza, University of Malaya (MYS)
• Phillips Chris, Manaaki Whenua- Landcare Research (NZL)
• Poesen Jean, KUL (BEL)
• Polster Dave, Polster Environmental Services (CAN)
• Preti Federico, Universita degli Studi di Firenze (ITA)
• Raymond Pierre, Terra Erosion Control Ltd (CAN)
• Rey Freddy, IRSTEA (FRA)
• Schwarz Massimiliano, University of Bern (CHE)
• Walker Lawrence R., University of Nevada (USA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/573147/)

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