Assessing the Conservation Status of Alder‐Ash Alluvial Forest and Atlantic Salmon in the<i>Natura 2000</i>River Network of Cantabria, Northern Spain

Barquín, José; Ondiviela, Bárbara Ruiz; Recio, María; Álvarez‐Cabria, Mario; Peñas, Francisco J.; Fernández, Diego; Oti, Laura; Garcı́a, Andrés; Álvarez, César; Juanes, José A.

doi:10.1002/9781119961819.ch16

Cited by 21 publications

(11 citation statements)

References 34 publications

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“…Prior to aggradation, most of the valley bottoms of Western Europe were dominated by very wide wooded wetlands with anabranching channels. The ecological quality of these alluvial forests has been demonstrated (e.g., Brown, 2002;Sabo et al, 2005) and recognized by classification as a priority habitat on a European level (Hughes et al, 2008; Barquin et al, 2012). The capacity for stocking carbon within this wetland developed in these alluvial plains seems obvious today (Hoffmann et al, 2013) even though this is rarely taken into account (Hughes et al, 2008).…”

Section: 'Naturalness' Of the Design Of Restored Channelsmentioning

confidence: 96%

The anthropogenic nature of present-day low energy rivers in western France and implications for current restoration projects

et al. 2015

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Section: 'Naturalness' Of the Design Of Restored Channelsmentioning

confidence: 96%

The anthropogenic nature of present-day low energy rivers in western France and implications for current restoration projects

et al. 2015

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“…Other estuarine fish species that enter the fluvial freshwater habitat in the Pas River are European flounder (Platichthys flesus) and thicklip grey mullet (Chelon labrosus). A more in depth description of Pas river biological communities is described elsewhere (e.g.,Álvarez-Cabria 2011; Barquín et al, 2011).…”

Section: Study Areamentioning

confidence: 99%

Creating a catchment scale perspective for river restoration

Benda¹,

Miller²,

Barquín

2011

Hydrol. Earth Syst. Sci.

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Abstract.One of the major challenges in river restoration is to identify the natural fluvial landscape in catchments with a long history of river control. Intensive land use on valley floors often predates the earliest remote sensing: levees, dikes, dams, and other structures alter valley-floor morphology, river channels and flow regimes. Consequently, morphological patterns indicative of the fluvial landscape including multiple channels, extensive floodplains, wetlands, and fluvial-riparian and tributary-confluence dynamics can be obscured, and information to develop appropriate and cost effective river restoration strategies can be unavailable. This is the case in the Pas River catchment in northern Spain (650 km 2 ), in which land use and development have obscured the natural fluvial landscape in many parts of the basin. To address this issue we used computer tools to examine the spatial patterns of fluvial landscapes that are associated with five domains of hydro-geomorphic processes and landforms. Using a 5-m digital elevation model, valley-floor surfaces were mapped according to elevation above the channel and proximity to key geomorphic processes. The predicted fluvial landscape is patchily distributed according to hillslope and valley topography, river network structure, and channel elevation profiles. The vast majority of the fluvial landscape in the main segments of the Pas River catchment is presently masked by human infrastructure, with only 15 % not impacted by river control structures and development. The reconstructed fluvial landscape provides a catchment scale context to support restoration planning, in which areas of potential ecological productivity and diversity could be targeted for in-channel, floodplain and riparian restoration projects.

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“…The study was conducted in more than 10 river catchments from the Cantabrian region (area > 5,000 km 2 ; Figure ). The mountainous relief and coastal location of the region define the climatic conditions and morphologic characteristics of main rivers (Barquín et al, ), which have their source in the Cantabrian Mountains. This mountain range, that runs from west to east parallel to the Atlantic Ocean coast and reaches more than 2,600 m, defines a triple division across the study area: hydrographic, climatic and biogeographic.…”

Section: Methodsmentioning

confidence: 99%

Modelling riparian forest distribution and composition to entire river networks

Pérez‐Silos

Álvarez‐Martínez

Barquín

2019

Applied Vegetation Science

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Aim: Developing a methodology to map the distribution of riparian forests to entire river networks and determining the main environmental factors controlling their spatial patterns. Location: Cantabrian region, northern Spain. Methods: We mapped the riparian forests at a physiognomic and phytosociological level by delimiting riparian zones and generating vegetation distribution models based on remote sensing data (Landsat 8 OLI and LiDAR PNOA). We built virtual watersheds to define a spatial framework where the catchment environmental information can be specified for each river reach, in combination with the vegetation map. In order to determine the drivers that play a significant role in the observed spatial patterns in riparian forests, based on our data sets we modelled interactions between environmental information and riparian vegetation by using the Random Forest algorithm. Results: The modelling results obtained reliably reproduced the variation of riparian forest structure and composition across Cantabrian watersheds. The produced maps were highly accurate, with a more than 70% overall accuracy for forest occurrence. A clear differentiation between Eurosiberian (habitats 91E0 and 9160) and Mediterranean (92E0) riparian forests was shown on both sides of the mountain range. Topography and land use were the main drivers defining the distribution of riparian forest as a physiognomic unit. In turn, altitude, climate and percentage of pasture were the most relevant factors determining their composition (phytosociological approach). Conclusions: Our study confirms that anthropic control ultimately defines the distribution of vegetation in the riparian area at a regional to local scale. Human disturbances constrain the extension of forest patches across their potential distribution defined by topoclimatic boundaries, which establish a clear limit between Mediterranean and Eurosiberian biogeographical regions.

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Assessing the Conservation Status of Alder‐Ash Alluvial Forest and Atlantic Salmon in theNatura 2000River Network of Cantabria, Northern Spain

Cited by 21 publications

References 34 publications

The anthropogenic nature of present-day low energy rivers in western France and implications for current restoration projects

The anthropogenic nature of present-day low energy rivers in western France and implications for current restoration projects

Creating a catchment scale perspective for river restoration

Modelling riparian forest distribution and composition to entire river networks

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