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Selection: with tag debris-flows [14 articles] 


Factors explaining the spatial distribution of hillslope debris flows: a case study in the Flysch Sector of the Central Spanish Pyrenees

Mountain Research and Development, Vol. 22, No. 1. (1 February 2002), pp. 32-39,[0032:fetsdo];2


The spatial distribution of 961 debris flows in the Upper Aragón and Gállego valleys (Central Spanish Pyrenees) was analyzed. Most were located in the Flysch Sector (with a colluvium mantle derived from strongly tectonically modified materials), between 1000 and 1400 m above sea level, on 25?35° gradients with sunny exposure. These gradients were either hillslopes covered by frequently burned scrubland, abandoned fields, or reforested land, confirming the influence of land use and disturbed landscapes on the occurrence of debris flows. ...


Post-fire erosion response in a watershed mantled by volcaniclastic deposits, Sarno Mountains, Southern Italy

CATENA, Vol. 152 (May 2017), pp. 227-241,


[Highlights] [::] We describe a post-fire erosion response of a steep watershed in Italy. [::] The fire burned 11 ha of forest with high and moderate severity. [::] The erosion response was triggered by a convective rainstorm. [::] A hyperconcentrated flow resulted from sediment bulking of surface runoff. [::] Amount of soil loss was estimated. [Abstract] In this study we document a post-fire erosion response to a short-lived, intense rainstorm occurred on 6 September 2012 in the Sant'Angelo creek watershed, Sarno Mountains, Southern Italy. The rainstorm occurred one ...


Investigation of root reinforcement decay after a forest fire in a Scots pine (Pinus sylvestris) protection forest

Forest Ecology and Management, Vol. 400 (September 2017), pp. 339-352,


[Highlights] [::] Engineering resilience of Scots pine 4 years after forest fire has been quantified. [::] Spatial distribution of root reinforcement (RR) has been modeled. [::] RR decay by a factor of 3.6, 4 years after a stand replacing forest fire. [::] Natural regeneration has almost no root reinforcement 4 years after fire. [::] Decay of root mechanical properties determine most of RR loss. [Abstract] Natural disturbances may cause a temporary reduction or elimination of the protective effect of forests. The management of protection forests aims to influence ...


Wildfire impacts on the processes that generate debris flows in burned watersheds

Natural Hazards In Natural Hazards, Vol. 61, No. 1. (17 March 2012), pp. 217-227,


Every year, and in many countries worldwide, wildfires cause significant damage and economic losses due to both the direct effects of the fires and the subsequent accelerated runoff, erosion, and debris flow. Wildfires can have profound effects on the hydrologic response of watersheds by changing the infiltration characteristics and erodibility of the soil, which leads to decreased rainfall infiltration, significantly increased overland flow and runoff in channels, and movement of soil. Debris-flow activity is among the most destructive consequences of these ...


The impacts of logging on landslide activity at Clayoquot Sound, British Columbia

CATENA, Vol. 38, No. 4. (February 2000), pp. 279-300,


The objective of this study was to investigate the impacts of logging on landslide activity in Clayoquot Sound on the west coast of Vancouver Island, British Columbia. A total of 1004 landslides were documented in order to test the hypothesis that areas affected by logging activities show different density, frequency and magnitude characteristics of landsliding than areas unaffected by logging. The frequency of landslides in logged terrain was found to be nine times higher than in undisturbed forest. An exponential increase ...


Post-fire geomorphic response in steep, forested landscapes: Oregon Coast Range, USA

Quaternary Science Reviews, Vol. 28, No. 11-12. (June 2009), pp. 1131-1146,


The role of fire in shaping steep, forested landscapes depends on a suite of hydrologic, biologic, and geological characteristics, including the propensity for hydrophobic soil layers to promote runoff erosion during subsequent rainfall events. In the Oregon Coast Range, several studies postulate that fire primarily modulates sediment production via root reinforcement and shallow landslide susceptibility, although few studies have documented post-fire geomorphic response. Here, we describe field observations and topographic analyses for three sites in the central Oregon Coast Range that ...


Wildfire-related debris flow from a hazards perspective

In Debris-flow Hazards and Related Phenomena (2005), pp. 363-385,


[Excerpt: Introduction] Wildland fire can have profound effects on the hydrologic response of a watershed. Consumption of the rainfall-intercepting canopy and of the soil-mantling litter and duff, intensive drying of the soil, combustion of soil-binding organic matter, and the enhancement or formation of water-repellent soils can change the infiltration characteristics and erodibility of the soil, leading to decreased rainfall infiltration, subsequent significantly increased overland flow and runoff in channels, and movement of soil (e.g., Swanson, 1981; Spittler, 1995; Doerr et al., 2000; Martin and Moody, 2001; ...


Multiaged forest stands for protection forests: Concepts and applications

Forest Snow and Landscape Research, Vol. 80, No. 1. (2006), pp. 45-55


Multiaged stands have two or more age classes that are the result of partial natural and anthropogenic disturbances that do not destroy all trees in a stand. Multiaged stands represent a more static structure than comparable even-aged stands because they fluctuate in a narrower range of variability in stand structure over time. For protection forests, potential benefits of multiaged stands are their resistance and resilience to disturbances. Resistance comes from the capacity to withstand or avoid disturbance effects. A variety of ...


The role of forests in reducing hydrogeomorphic hazards

Forest Snow and Landscape Research, Vol. 80, No. 1. (2006), pp. 11-22


Increasingly, forests are being valued for goods and services beyond wood fibre; one of these is protection forests. Functions provided by natural and managed forests have been associated with reduced hazards from floods, debris floods, debris flows, snow avalanches and rockfalls. Maintaining a high level of protection may require active management, as forests are dynamic and the protection capabilities are strongly determined by forest condition. The nature of protection provided varies depending upon the hazard processes and pathways, and the relative ...


Debris-flow mitigation measures

In Debris-flow Hazards and Related Phenomena (2005), pp. 445-487,


[Excerpt] Integrated risk management is a tool to prevent, intervent, and avoid natural hazards (Amman, 2001). This includes a combination of land use planning and technical and bioengineering measures to guarantee an optimal cost-benefit ratio. An essential aspect of risk management is the design of mitigation measures which reduce the existing risk to an accepted level of residual risk. Two types of mitigation measures can be distinguished (Zollinger, 1985): active measures and passive measures. Active measures focus on the hazard, while passive measures focus on the potential damage (Huebl ...


Potential hazard analysis and risk assessment of debris flow by fuzzy modeling

Natural Hazards In Natural Hazards, Vol. 64, No. 1. (17 June 2012), pp. 273-282,


Taiwan is a mountainous country, so there is an ever present danger of landslide disasters during the rainy seasons or typhoons. This study aims to develop a fuzzy-rule-based risk assessment model for debris flows and to verify the accuracy of risk assessment so as to help related organizations reduce losses caused by debris flows. The database is comprised of information from actual cases of debris flows that occurred in the Hualien area of Taiwan from 2007 to 2008. The established models ...


(INRMM-MiD internal record) List of keywords of the INRMM meta-information database - part 10

(February 2014)
Keywords: database   dataset   dating   dddas   de-facto-standard   dead-wood   debris   debris-floods   debris-flows   deciduous   deciduous-forest   decision-making   decision-making-procedure   decision-support-system   decline   decline-effect   decline-symptomology   deep-reproducible-research   deep-uncertainty   definition   deforestation   degenerated-soil   deglaciation   degradation   degradation-velocity   dehesas   delonix-regia   democracy   dendrochronology   dendroctonus   dendroctonus-frontalis   dendroctonus-micans   dendroctonus-ponderosae   dendroctonus-pseudotsugae   dendroecology   dendrology   denmark   density-related-behaviour   deposition   derived-data   desalinisation   description   desertification   deserts   design-diversity   devil-in-details   diabetes   diabetes-mellitus   diagram-data   diameter-differentiation   dictionary   die-off   dieback   diesel   differentiation   digital-preservation   digital-society   dimensional-analysis   dimensionality-reduction   dimensionless   dioryctria-splendidella   diospyros-kaki   diospyros-spp   diospyros-virginiana   diplodia-pinea   diprion-pini   dipteryx-panamensis   direct-reciprocity   disaster-recovery   disaster-response   disasters   discharge   disciplinary-barrier   disconcerting-learning   discount-rate   disease   diseases   disjunction   dispersal   dispersal-limitation   dispersal-models   dissent   distance-analysis   distance-correlation   distilled-gin   distribution   distribution-limit   disturbance-ecology   disturbance-interactions   disturbances   diversity   django   dna   dna-fingerprinting   dobrogea   dodonaea-viscosa   dormancy   dormouse   inrmm-list-of-tags  


List of indexed keywords within the transdisciplinary set of domains which relate to the Integrated Natural Resources Modelling and Management (INRMM). In particular, the list of keywords maps the semantic tags in the INRMM Meta-information Database (INRMM-MiD). [\n] The INRMM-MiD records providing this list are accessible by the special tag: inrmm-list-of-tags ( ). ...


Hazard Assessment of Debris Flows by Credal Networks

In iEMSs 2004 International Congress: "Complexity and Integrated Resources Management" (2004)


Debris flows are destructive natural hazards that affect human life, buildings, and infrastructures. Despite their importance, debris flows are only partially understood, and human expertise still plays a key role for hazard identification. This paper proposes filling the modelling gap by using credal networks, an imprecise-probability model. The model uses a directed graph to capture the causal relationships between the triggering factors of debris flows. Quantitative influences are represented by probability intervals, determined from historical data, expert knowledge, and theoretical models. ...


Storm rainfall conditions for floods and debris flows from recently burned areas in southwestern Colorado and southern California

Geomorphology, Vol. 96, No. 3-4. (April 2008), pp. 250-269,


Debris flows generated during rain storms on recently burned areas have destroyed lives and property throughout the Western U.S. Field evidence indicate that unlike landslide-triggered debris flows, these events have no identifiable initiation source and can occur with little or no antecedent moisture. Using rain gage and response data from five fires in Colorado and southern California, we document the rainfall conditions that have triggered post-fire debris flows and develop empirical rainfall intensity–duration thresholds for the occurrence of debris flows and ...

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Meta-information Database (INRMM-MiD).
This database integrates a dedicated meta-information database in CiteULike (the CiteULike INRMM Group) with the meta-information available in Google Scholar, CrossRef and DataCite. The Altmetric database with Article-Level Metrics is also harvested. Part of the provided semantic content (machine-readable) is made even human-readable thanks to the DCMI Dublin Core viewer. Digital preservation of the meta-information indexed within the INRMM-MiD publication records is implemented thanks to the Internet Archive.
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