Retrospective land cover/land use change trajectories as drivers behind the local distribution and abundance patterns of oaks in south-western Finland

Käyhkö, Niina; Skånes, Helle

doi:10.1016/j.landurbplan.2008.07.003

Cited by 23 publications

(11 citation statements)

References 33 publications

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“…grazing, low-intensity fires, and dimension cuttings in the past (see Section 4.1). Similar results indicating permanent or longer species and structural shifts following compounded disturbances have previously been found in boreal Sweden, Finland, and in North America although involving different species compositions (Ericsson et al, 2000;Axelsson and Östlund, 2001;Hellberg et al, 2003;Payette and Delwaide, 2003;Schulte et al, 2007;Käyhkö and Skånes, 2008;Rhemtulla et al, 2009). The present Swedish national conservation objective aims to increase the amount of older deciduous forests in boreal Sweden, implying a need to identify and manage remnant deciduous elements to maintain deciduous continuity in landscape networks.…”

Section: Management Implications Based On Identified Legaciessupporting

confidence: 75%

Current distribution of older and deciduous forests as legacies from historical use patterns in a Swedish boreal landscape (1725–2007)

Eriksson

Skånes

Hammer

et al. 2010

Forest Ecology and Management

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Section: Management Implications Based On Identified Legaciessupporting

confidence: 75%

Current distribution of older and deciduous forests as legacies from historical use patterns in a Swedish boreal landscape (1725–2007)

Eriksson

Skånes

Hammer

et al. 2010

Forest Ecology and Management

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“…Analysis of trajectories facilitates the identification of, for example, ancient grasslands, or grasslands in the stage of regeneration. Information on diversity of histories may serve as a basis for spatially explicit conservation management (Cousins andEricsson 2002, Käyhkö andSkånes 2008). It can help to select areas to be protected, and thus may greatly contribute to a more efficient conservation management of key habitats (Ujházy et al 2011, Kowalska 2012.…”

Section: Discussionmentioning

confidence: 99%

“…The analysis requires at least three points of time and is more complicated owing to the necessary grouping of change trajectories. As the approach is primarily retrospective, the focus is on the development of the present-day landscape (Käyhkö and Skånes 2008). The analysis is usually applied to temporal tracking of land-cover patches, and grassland or forest continuity (Orczewska 2009), to study succession (Cserhalmi et al 2011), urbanization (Frondoni 2011), and even to quantify the variability of landscape fragment histories (Swetnam 2007, Eremiásová andSkokanová 2009).…”

Section: Introductionmentioning

confidence: 99%

Detection of long-term landscape changes and trajectories in a Pannonian sand region: comparing land-cover and habitat-based approaches at two spatial scales

et al. 2013

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A key driver of biodiversity loss is human landscape transformation. Change detection and trajectory analysis are frequently applied methods for studying landscape change. We studied to what degree habitatspecific change detection and trajectory analysis provide different information on landscape change compared to the analysis with land-cover statistics. Our research was carried out at two spatial scales (regional, 1800 km 2 , 360 random points; local, 23 km 2 , polygon-based maps) in the Kiskunság, Hungary. Spatio-temporal databases were prepared using historical maps, aerial photos and satellite images from 1783, 1883, 1954, and 2009. Local expert knowledge of landscape history and recent vegetation was used during the historical reconstructions.We found large differences at both scales between land-cover based and habitat-specific analyses. Habitatspecific change detection revealed that grassland loss was not continuous in the different habitats, as land-cover based analysis implied. Ploughing affected open sand grasslands and sand steppes differently in different periods. It was only apparent from the habitat-specific analyses that from the grasslands only mesotrophic and Molinia meadows were relatively constant, up until the 1950s. The gradual increase in forest area revealed by land-cover CHD analyses was split into natural and anthropogenic processes by habitat-specific analyses. Habitat specific trajectory analysis also revealed ecologically important historical differences between habitats. Afforestation affected especially the open sand grasslands, whereas wetland habitats were relatively stable. The most important trajectory was the one in which closed sand steppes were ploughed during the 19 th century, and remained arable fields until present. Fifty percent of the regional trajectories of 18 th century open sand grasslands terminated in tree plantations at present, though 82% of the current open sand grasslands of the local site can be regarded as ancient.We concluded that dividing land-cover categories into finer habitat categories offered an opportunity for a more precise historical analysis of key habitats, and could reveal important ecological processes that cannot be reconstructed with land-cover based analyses. It also highlighted habitat-specific processes making natural and social drivers better interpretable. Information on the diversity of habitat-histories may serve as a basis for spatially more explicit conservation management.

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“…The forest cover change analysis was based on the retrospective approach, with places emphasis on landscape transformation over time in relation to the present-day landscape [75][76][77][78][79]. In this case study, the reconstruction of the forest cover changes from 2017 to 1944 was based on the geospatial data obtained by vectorisation of the cartographic materials and orthophotomaps, using geographical information systems (GIS).…”

Section: Spatial Data and Methodsmentioning

confidence: 99%

Spatio-Temporal Changes of Urban Forests and Planning Evolution in a Highly Dynamical Urban Area: The Case Study of Wrocław, Poland

Jaworek-Jakubska

Filipiak

Michalski

et al. 2019

Forests

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Knowledge about urban forests in Poland is still limited, as it is primarily based on aggregate, formal data relating to the general area, ignoring the spatial dimension and informal green areas. This article describes and analyses spatio-temporal changes in the actual urban forest resources in Wrocław in 1944–2017, which covers the first period of the city’s rebuilding after its destruction during World War II and its development during the nationalised, centrally-planned socialist economy, as well as the second period of intensive and only partly controlled growth under conditions of market economy. The study is based on current and historical orthophotomaps, which were confronted with cartographic data, as well as planning documents. We found that between 1944 and 2017, the percentage contribution of informal woodlands increased tenfold (from 0.5 to 4.9% of the present total area of the city). The area occupied by such forests has grown particularly during the most recent years of the city’s intensive development. However, the forests have been increasingly fragmented. During the first period, new forest areas were also created in the immediate vicinity of the city centre, while during the second one, only in its peripheral sections. The post-war plans regarding the urban green spaces (UGS), including the current plan, are very conservative in nature. On the one hand, this means no interference with the oldest, biggest, and most valuable forest complexes, but on the other hand, insufficient consideration of the intensive built-up area expansion on former agriculture areas. Only to a limited extent did the above-mentioned plans take into account the informal woodlands, which provide an opportunity for strengthening the functional connectivity of landscape.

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Retrospective land cover/land use change trajectories as drivers behind the local distribution and abundance patterns of oaks in south-western Finland

Cited by 23 publications

References 33 publications

Current distribution of older and deciduous forests as legacies from historical use patterns in a Swedish boreal landscape (1725–2007)

Current distribution of older and deciduous forests as legacies from historical use patterns in a Swedish boreal landscape (1725–2007)

Detection of long-term landscape changes and trajectories in a Pannonian sand region: comparing land-cover and habitat-based approaches at two spatial scales

Spatio-Temporal Changes of Urban Forests and Planning Evolution in a Highly Dynamical Urban Area: The Case Study of Wrocław, Poland

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