Rixen, C. et al. Winter tourism and climate change in the Alps: an assessment of resource consumption snow reliability and future snowmaking potential. Mt. Res. Dev. 31, 229–236 (2011).
Vanat, L. International Report on Snow & Mountain Tourism: Overview of the Key Industry Figures for Ski Resorts, 10th edition (2018).
Negro, M. et al. Differential responses of ground dwelling arthropods to ski-piste restoration by hydroseeding. Biodivers. Conserv. 22, 2607–2634 (2013).
Körner, C. The Alpine life zone under global change. Gayana Bot. https://doi.org/10.4067/S0717-66432000000100001 (2000).
Garcı́a-Llorente, M. et al. What can conservation strategies learn from the ecosystem services approach? Insights from ecosystem assessments in two Spanish protected areas. Biodivers. Conserv. 27, 1575–1597 (2016).
Egan, P. A. & Price, M. F. Mountain Ecosystem Services and Climate Change. A Global Overview of Potential Threats and Strategies for Adaptation (UNESCO, Paris, 2017).
MeijerzuSchlochtern, M. P., Rixen, C., Wipf, S. & Cornelissen, J. H. C. Management, winter climate and plant–soil feedbacks on ski slopes: a synthesis. Ecol. Res. 29, 583–592 (2014).
Gros, R., Monrozier, L. J., Bartoli, F., Chotte, J. L. & Faivre, P. Relationships between soil physico-chemical properties and microbial activity along a restoration chronosequence of alpine grasslands following ski run construction. Appl. Soil Ecol. 27, 7–22 (2004).
Barni, E., Freppaz, M. & Siniscalco, C. Interactions between Vegetation, Roots, and Soil Stability in Restored High-altitude Ski Runs in the Alps. Arct. Antarct. Alp. Res. 39, 25–33 (2007).
Pohl, M., Alig, D., Körner, C. & Rixen, C. Higher plant diversity enhances soil stability in disturbed alpine ecosystems. Plant Soil 324, 91–102 (2009).
Burt, J. W. & Rice, K. J. Not all ski slopes are created equal: Disturbance intensity affects ecosystem properties. Ecol. Appl. 19, 2242–2253 (2009).
Van Andel, J., Bakker, J. P., Bakker, J. P. & Grootjans, A. P. Mechanism of vegetation succession: a review of concepts and perspectives. Acta Bot. Neerlandica 42, 413–433 (1993).
Styczen, M. E. & Morgan, R. P. C. Engineering properties of vegetation 5–58 (E and FN Spon, New York, 1995).
Gray, D. H. & Sotir, R. B. Biotechnical and Soil Bioengineering Slope Stabilization: A Practical Guide for Erosion Control (Wiley, New York, 1996).
Gray, D. H. & Leiser, A. T. Biotechnical Slope Protection and Erosion Control (Van Nostrand Reinhold Company, London, 1982).
Argenti, G. & Ferrari, L. Plant cover evolution and naturalisation of revegetated ski runs in an Apennine ski resort (Italy). Forest 2, 178–182 (2009).
Pintaldi, E. et al. Hummocks affect soil properties and soil-vegetation relationships in a subalpine grassland (North-Western Italian Alps). CATENA 145, 214–226 (2016).
Stokes, A. et al. Ecological mitigation of hillslope instability: ten key issues facing researchers and practitioners. Plant Soil 377, 1 (2014).
Burt, J. W. & Clary, J. J. Initial disturbance intensity affects recovery rates and successional divergence on abandoned ski slopes. J. Appl. Ecol. 53, 607–615 (2016).
Krautzer, B. et al. The influence of recultivation technique and seed mixture on erosion stability after restoration in mountain environment. Nat. Haz. 56, 547–557 (2011).
Pintaldi, E. et al. Sustainable soil management in ski areas: threats and challenges. Sustainability 9, 2150 (2017).
Pohl, M., Stroude, R., Buttler, A. & Rixen, C. Functional traits and root morphology of alpine plants. Ann. Bot. 108, 537–545 (2011).
Körner, C. Alpine Plant Life Functional Plant Ecology of High Mountain Ecosystems (Springer-Verlag, Berlin, 2003).
Mercalli, L. Atlante climatico della Valle d’Aosta (Società Meteorologica Italiana, Rome, 2003).
FAO-ISRIC. World Reference Base for Soil Resources 2014. World Soil Resources Reports No. 103 (FAO, 2014).
Shannon, C. E. & Wiener, W. The Mathematical Theory of Communication (University Illinois Press, Champaign, 1963).
Van Andel, J. & Aronson, J. Restoration Ecology. The New Frontier 2nd edn. (Wiley-Blackwell, New York, 2012).
Landolt, E. et al. Flora Indicativa: Okologische Zeigerwerte und Biologische Kennzeichen zur Flora der Schweiz und der Alpen (Haupt, Bern, 2010).
Bovio, M. Lista Rossa e Lista Nera della flora vascolare della Valle d’Aosta (Italia, Alpi Nord-occidentali). Aggiornamento anno 2016. Rev. Valdôtaine Hist. Nat. 70, 57–74 (2016).
Rossi, G. et al. Lista Rossa della Flora Italiana. 1. Policy Species e Altre Specie Minacciate (Comitato Italiano IUCN e Ministero dell’Ambiente e della Tutela del Territorio e del Mare, Rome, 2013).
Aeschimann, P., Lauber, K., Moser, D. M. & Theurillat, J. P. Flora Alpina (Haupt Verlag, Bern, 2004).
Van Reeuwijk, L. P. Procedures for Soil Analysis. Technical Paper n. 9 (International Soil Reference and Information Centre, Wageningen, 2002).
Zanini, E., Bonifacio, E., Alberston, J. D. & Nielsen, D. R. Topsoil aggregate breakdown under water-saturated conditions. Soil. Sci. 163, 288–298 (1998).
Kruskal, J. B. Nonmetric multidimensional scaling: a numerical method. Psychometrika 29, 115–129 (1964).
Oksanen, J. et al. Vegan: community ecology package. R Package Version 2.0-0. ttp://CRAN.Rproject.org/package=vegan (2011).
Bates, D., Mächler, M., Bolker, B. & Walker, S. Fitting linear mixed-effects models using lme4. J. Stat. Softw. 67, 1–48 (2015).
Wipf, S., Rixen, C., Fischer, M., Schmid, B. & Stoeckli, V. Effects of ski piste preparation on alpine vegetation. J. Appl. Ecol. 42, 306–316 (2005).
Roux-Fouillet, P., Wipf, S. & Rixen, C. Long-term impacts of ski piste management on alpine vegetation and soils. J. Appl. Ecol. 48, 906–915 (2011).
Delgado, R. et al. Impact of ski pistes on soil properties, a case study from a mountainous area in the Mediterranean region. Soil Use Manag. 23, 269–277 (2007).
Argenti, G., Merati, M., Staglianò, N. & Talamucci, P. Establishment and evolution of technical ski slope covers in an alpine environment. Riv. Agron. 34, 186–190 (2000).
Krautzer, B. et al. Site-specific high zone restoration in the Alpine region: the current technological development (HBLFA Raumberg-Gumpenstein, Irdning, 2006).
Burt, J. W. Developing restoration planting mixes for active ski slopes: a multi-site reference community approach. J. Environ. Manage. 49, 636–648 (2012).
Klug, B. Seed mixtures, seeding methods, and soil seed pools: major factors in erosion control on graded ski-runs. WSEAS Trans. Environ. Dev. 4, 454–459 (2006).
Barrel, A. et al. Native Seeds for the Ecological Restoration in Mountain Zone: Production and Use of Preservation Mixtures (Institut Agricole Régional, Aosta, 2015).
Hagen, D., Hansen, T.-I., Graae, B. J. & Rydgren, K. To seed or not to seed in alpine restoration: introduced grass species outcompete rather than facilitate native species. Ecol. Eng. 64, 255–261 (2014).
Gretarsdottir, J., Aradottir, A. L., Vandvik, V., Heegaard, E. & Birks, H. J. B. Long-term effects of reclamation treatments on plant succession in Iceland. Restor. Ecol. 12, 268–278 (2004).
Florineth, F. Pflanzen statt Beton (Handbuch zur Ingenieurbiologie und Vegetationstechnik, Berlin-Hannover, 2004).
Lichtenegger, E. Root distribution in some alpine plants. Acta Phytogeogr Suec. 81, 76–82 (1996).
Nagelmüller, S., Hiltbrunner, E. & Körner, C. Critically low soil temperatures for root growth and root morphology in three alpine plant species. Alp. Bot. 126, 11–21 (2016).
Khan, M. A., Gemenet, D. C. & Villordon, A. Root system architecture and abiotic stress tolerance: current knowledge in root and tuber crops. Front. Plant Sci. 7, 1584 (2016).
Tracy, S. R. et al. Quantifying the impact of soil compaction on root system architecture in tomato (Solanum lycopersicum) by X-ray micro-computed tomography. Ann. Bot. 110, 511–519 (2012).
Poorter, H. et al. Biomass allocation to leaves, stems and roots: meta-analyses of interspecific variation and environmental control. New Phytol. 193, 30–50 (2012).
Bardgett, R. D., Mommer, L. & De Vries, F. T. Going underground: root traits as drivers of ecosystem processes. Trends Ecol. Evol. 29, 692–699 (2014).
Hudek, C., Stanchi, S., D’Amico, M. & Freppaz, M. Quantifying the contribution of the root system of alpine vegetation in the soil aggregate stability of moraine. Int. Soil Water Conserv. Res. 5, 36–42 (2017).
Gould, I. J., Quinton, J. N., Weigelt, A., De Deyn, G. B. & Bardgett, R. D. Plant diversity and root traits benefit physical properties key to soil function in grasslands. Ecol. Lett. 19, 1140–1149 (2016).
Solly, E. F. et al. Unravelling the age of fine roots of temperate and boreal forests. Nat. Commun. 9, 3006 (2018).
Rixen, C., Freppaz, M., Stöckli, V., Huovinen, C. & Wipf, S. Altered snow density and chemistry change soil nitrogen mineralization and plant growth. Arct. Antarct. Alp. Res. 40, 568–575 (2008).
Miransari, M. Plant growth promoting Rhizobacteria. J. Plant Nutr. 37, 2227–2235 (2014).
Stokes, A., Atger, C., Bengough, A. G., Fourcaud, T. & Sidle, R. C. Desirable plant root traits for protecting natural and engineered slopes against landslides. Plant Soil 324, 1–30 (2009).
Freppaz, M. et al. Soil Properties on Ski-Runs. In Impacts of Skiing and Related Winter Recreational Activities on Mountain Environments p (eds Rixen, C. & Rolando, A.) 45–64 (Bentham Science Publisher, Sharjah, 2013).
Locher Oberholzer, N. et al. Linee Guida per Il Rinverdimento ad Alta Quota; AGHB Bollettino n2 (Luglio, Verein für Ingenieurbiologie, 2008) ((In Italian)).
Graf, F. & Brunner, I. Natural and synthesized ectomycorrhizas of the alpine dwarf willow Salix herbacea. Mycorrhiza 6, 227–235 (1996).
Graf, F. Ectomycorrhiza in alpine eco-engineering. Rev. Valdôtaine Hist. Nat. 52, 314–323 (1997).
Graf, F. & Gerber, W. Der Einfluss von Mykorrhizapilzen auf die Bodenstruktur und deren Bedeutung für den Lebendverbau Schweiz. Z. Forstwes 11, 863–886 (1997).
Frei, M. et al. Quantification of the influence of vegetation on soil stability. In Proceeding of the International Conference on Slope Engineering (Department of Civil Engineering, 2003).
Krautzer, B., Graiss, W. & Klug, B. Ecological Restoration of Ski-Runs. The Impacts of Skiing and Related Winter Recreational Activities on Mountain Environments 184–209 (Bentham e books, Sharjah, 2013).
Peratoner, G. Organic Seed Propagation of Alpine Species and Their Use in Ecological Restoration of Ski-Runs in Mountain Regions. Diss. Univ. Kassel. Kassel University Press, 238 (2003).
Source: Ecology - nature.com
