CONTACTS:

Tel. 0250330500
Email corso.edolo@unimi.it

Project promoted by:

MIUR Ministero dell'Istruzione, dell'Iniversità e della Ricerca

 

Università degli Studi di Milano
Research Area

publications

refine your search
Keywords
Publication Year
Author
university
university
  • ADRION
  • ANCI
  • Attività Culturali e Turismo
  • Azienda Regionale Veneto Agricoltura
  • Compagnia San Paolo
  • Confartigianato Imprese
  • Corpo Forestale dello Stato
  • COST
  • Fondazione Cariplo
  • Fondazione della Comunità Bergamasca
  • Fondazione della Comunità Bresciana
  • Fondazione Fojanini di Studi Superiori
  • Fondazione Novartis
  • Fondazione Politecnico di Milano
  • Horizon 2020
  • ISTAT
  • Ministero del Lavoro e Politiche Sociali
  • Ministero dello Sviluppo Economico
  • Mountain Research Initiative
  • Osservatorio del Paesaggio della Provincia autonoma di Trento
  • Regione Emilia Romagna
  • Regione Friuli Venezia Giulia
  • Lombardy Region
  • Regione Piemonte
  • Regione Veneto
  • UNCEM
  • Università di Firenze
  • Università di Milano
  • Unimont
  • Unioncamere Lombardia
  • Unione Europea
  • Università di Padova
  • Università di Torino
  • Università degli Studi della Tuscia
  • Università degli Studi di Milano
  • University of Trás-os-Montes e Alto Douro
  • University of Veterinary Medicine Vienna
type
type
  • Technical
  • Convegni-Forum-Meeting
  • Scientific
  • Storica
  • Dissertations
areas of interest
areas of interest
  • Agriculture
  • Food
  • allevamento
  • Others
  • Environment
  • Assestamento forestale
  • Biochemistry
  • Biodiversità
  • Animal biology
  • Plant biology
  • Blende learning
  • Botanica forestale
  • Chemistry
  • Climate
  • Orchard management and plant husbandry
  • Conservation
  • Mountain architecture preservation and agroforestry
  • Cultura - Culture
  • Economia
  • Economia ambientale
  • Energy
  • Entomology
  • Estimo ambientale
  • Fauna
  • Physics
  • Fisiologia
  • Foreste
  • Frammentazione del fondo
  • Genetica forestale
  • Land Management
  • GIS - geographic information system
  • Hydraulics: applications in agriculture
  • Imprenditoria
  • Informatica
  • Information technology
  • Lingua straniera
  • Marketing
  • Mathematics and Statistics
  • Meccanizzazione agroforestale
  • Microbiologia agraria
  • Transport
  • Normativa per la montagna
  • Plant pathology
  • Pedologia
  • Territorial planning
  • Produzioni zootecniche
  • Project Management per la montagna
  • Water Resources
  • Forestry
  • Sicurezza
  • Sistemazioni Idraulico Forestali
  • Socio economic
  • Tecnologia
  • Tesi di Laurea
  • Trasporto
  • Tourism
  • Viticoltura
  • Zoologia
  • Zootechny
< back

The effect of gap openings on soil reinforcement in two conifer stands in northern Italy

Tipologia
Area di Interesse
information
Authors:

G.B. BischettiC. BassanelliE.A. ChiaradiaG. MinottaC. Vergani

Publication
year:

2016

Journal:

Forest Ecology and Management

Number:

359

Pages:

286-299

Abstract:

Gap-oriented forestry is a subject that is gaining interest worldwide as a compromise between economic and operational requirements on the one hand and environmental and safety concerns on the other. In principle, the approach mimics the effects of fine-scale natural disturbance while avoiding the threats of soil degradation and instability associated with large clearcuts, but at the same time, it does not limit the productivity associated with single-tree selection.

Despite this interest, studies of the real effects of gap-oriented forestry are still limited, particularly those dealing with its impact on slope stability. This paper provides quantitative results about the slope stability of two mixed-conifer stands subjected to gap management in the Italian Central Alps that were monitored for five years after felling.

The results showed that root decay, both in strength and density, further reduces additional root cohesion by approximately 60% in the first two years after felling and by another 20% in the third year; it completely vanishes by the fifth year. The observed reduction in root reinforcement values has dramatic consequences for slope stability. In fact:

  • In undisturbed conditions, the contribution of forest root systems guarantees a very low probability of instability (approximately 10% for a factor of safety of less than 1 as well as for steep slopes and high levels of saturation).
  • After only two years, the probability of instability dramatically increases for gentle slopes and low levels of saturation. We estimated a 50% probability of a factor of safety less than 1 when steepness was greater than 36–38° and soil saturation was 25% and when steepness was greater than 24–26° and soil saturation was 75%.
  • The probability of instability is highest five years after felling when the contribution of the root system has vanished. The probability of failure exceeded 50% when steepness was greater than 25–28° and saturation was 25%, and the slopes were practically unstable when saturation was 75%.
  • At the point when the contribution of the root system to slope stability was null, the regeneration process was still too undeveloped to contribute to soil reinforcement in any way.

These results suggest that although the gap-oriented approach is, in principle, more conservative than large clearcuts, the pace of natural regeneration could be slower than the process of root decay, so instability could occur, especially where local slopes exceed 25° and soils are frequently saturated.

Keywords:

Slope stability; Additional root cohesion; Conifers; Root decay; Regeneration

Contacts (for theses contacts Rapporteur)
Contact person:

Gian Battista Bischetti

Mail:
Link:

you might also affect

Publication title
Type
Area of interest

news

Segnala

CONTRIBUTE!

DO YOU HAVE A COURSE OR A PROJECT TO TELL THE PORTAL ABOUT?
Fill in the form to become part of the Unimont network!

Contribute! >

catlist_istituzionaliThe Unimont logo distinguishes all educational and research initiatives, developed and/or approved by the Mountain University, which aim at a sustainable development and enhancement of mountain areas compatible with environmental, social and economic conservation.

research area icons legend

mountain university

Research projects, Publications Calls for Proposals and Job Opportunities from Mountain University.

publication type

Scientific
Application
Dissertations

tipologie bandi

Calls
for proposals
Jobs

areas of interest

Food
Environment
Agriculture
Climate
Culture
Energy
Land
Management
Transport
Water
Resources
Forestry
Social and
Economic Issues
Tourism
Zootechny
Other

Search site

Use this tool to search all of the content within the portal. For a more specific search visit Teaching, Research or Services sections.

Legal Notes

Credits

UNIMONT portal has been developed using WordPress.

Graphics and programming by Paper Plane Factory.

Search Augmentation: Mavida snc