Development of an ancient shoreline database to reconstruct the Litorina Sea maximum extension and the highest shoreline of the Baltic Sea basin in Finland

Ojala, Antti E. K.; Palmu, Jukka‐Pekka; Åberg, Annika; Åberg, Susanne; Virkki, Hanna

doi:10.17741/bgsf/85.2.002

Cited by 47 publications

(41 citation statements)

References 29 publications

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“…and Superficial deposit map of Finland 1:200 000© (Superficial deposits of Finland 2013 -DigiMP, GSF, version 1.0). For the survey of the location of studied stands in relation to subaquatic and supra-aquatic areas, the Ancient Shoreline Database© (ASD; GSF, version 6.1) was used (see details Ojala et al 2013). For the survey of the elevation of control and compensated damage stands, the Topographic database© of National Land Survey of Finland (NLS) was used.…”

Section: Lithological and Superficial Deposit Maps And Classificationmentioning

confidence: 99%

Effects of bedrock and surficial deposit composition on moose damage in young forest stands in Finnish Lapland

Ruuhola¹,

Nikula²,

Nivala³

et al. 2016

Silva Fenn.

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Effects of bedrock and surficial deposit composition on moose damage in young forest stands in Finnish LaplandRuuhola T., Nikula A., Nivala V., Nevalainen S., Matala J. (2016). Effects of bedrock and surficial deposit composition on moose damage in young forest stands in Finnish Lapland. Silva Fennica vol. 50 no. 3 article id 1565. 20 p. http://dx.doi.org/10.14214/sf.1565. Highlights• The effect of bedrock and soil on moose damage in forest plantations were examined.• Moose damage were concentrated in nutrient rich bedrock areas.• Bedrock of damaged stands contained a higher proportion of mafic and alkaline rocks.• Pine-dominated stands on fine grained fertile forest sites had the highest damage risk. AbstractThere is evidence that moose are attracted to fertile growth habitats apparently due to better quality and larger quantities of food. The nutrients in mineral soils originate from the weathering of bedrock and the composition of parental bedrock affects the fertility of produced mineral soil, thus affecting also the import of nutrients into the whole food web. We surveyed the connection between moose damage in forest plantations and the composition of bedrock and surficial deposits in Finnish Lapland. We used a database of compensated moose damage in private forests in years 1997−2010. Undamaged stands in National Forest Inventories (NFI) from years 1986-2008 served as a control data and moose-damaged NFI-stands as a reference data. Bedrock and surficial depositions and the location of studied stands in relation to ancient shorelines were explored by using the digital databases of the Geological Survey of Finland. Moose-damaged stands were concentrated in southwestern and east Lapland in the areas of the Peräpohja Schist Belt and Lapland's Greenstone Belt that are both composed of nutrient-rich rocks. The bedrock of damaged stands contained a higher proportion of mafic and alkaline rocks than did the control stands. Moose-damaged stands were pine-dominated and grew in more fertile forest sites than did control stands. Part of pine stands probably located in soils formerly occupied by spruce, which may increase the stands' vulnerability to biotic threats. Especially, there were relatively more moose damage in pine plantations regenerated on fine-grained mineral soils derived from nutrient rich rocks than in less fertile soils.

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Section: Lithological and Superficial Deposit Maps And Classificationmentioning

confidence: 99%

Effects of bedrock and surficial deposit composition on moose damage in young forest stands in Finnish Lapland

Ruuhola¹,

Nikula²,

Nivala³

et al. 2016

Silva Fenn.

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“…Information on shorelines was derived from the Ancient Shoreline Database© (ASD; GSF, version 6.1). The database shows the maximum extension for the Litorina Sea and for the highest shoreline of the Baltic Sea basin in Finland as well as known local ice lakes and ice-dammed lakes in Northern Finland (Ojala et al 2013). The elevation of each stand was measured by using the Topographic database© of the National Land Survey of Finland.…”

Section: Land Use and Forest Datamentioning

confidence: 96%

“…1). In the east, the area restricts to topographic border formed by the highest shoreline after the last glacial period (Ojala et al 2013), and the area is restricted to the Gulf of Bothnia in the west. The study area belongs to the mid-boreal region (Ahti et al 1968).…”

Section: Study Areasmentioning

confidence: 99%

Hirven Alces alces resurssinvalinta useilla mittakaavan tasoilla – puista, taimikoista- ja elinpiireistä maisemiin ja ja ja alueisiin

Nikula¹

2017

Diss. For.

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To be presented, with the permission of the Faculty of Agriculture and Forestry of the University of Helsinki, for public critisism in auditorium 108 (ls B3), Metsätieteiden talo (Viikki campus, Latokartanonkaari 7, Helsinki) on March 24 th 2017, at 12 o´clock noon. ABSTRACTThe Moose is a valuable game animal in Fennoscandia but also the most severe pest in forest plantations. In this thesis, I examined factors that affect the habitat selection of moose and moose damage at multiple scales. At the plot level, browsing increased with an increasing number of artificially regenerated pines and deciduous trees taller than pines. The damage risk was the highest in plantations with heavy soil preparation.Moose summer home ranges had more fertile sites than the overall study area. Within summer ranges moose, selected non-pine-dominated habitats and mature forests and avoided human settlements. Winter ranges contained more pine-dominated plantations and other young successional stages, more pine dominated peatland forests and less human settlements and agricultural fields. Within winter ranges, moose used more non-pinedominated plantations and mature forests and less human-inhabited areas than expected. At the home range level, there were no significant differences between sexes, but within home ranges males and females used different habitats during both seasons.The occurrence of damage in nearby landscape decreased the probability to find a landscape without damage and predicted an increase in the number of damaged plantations. Increased food-cover adjacencies of mature forests and plantations increased damage. An increasing proportion of inhabited areas and the length of connecting roads decreased the number of damage at the landscape sizes of 1 km 2 and 5 km 2 . Moose-damaged stands were concentrated in SW and eastern Lapland in Peräpohja Schist Belt and Lapland's Greenstone Belt with nutrient-rich bedrock. There was less damage in landscapes with an abundant amount of pine-dominated thinning forests. Moose damage plantations were located more on fertile bedrock and soils than undamaged ones. Regenerating Scots pine on fine-grained soils derived from nutrient-rich rocks and naturally occupied by Norway spruce might increase damage risk.

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“…Large areas in the west were subaquatic during and after the ice retreated from the region, so the topography is smoother than in the supra-aquatic areas of the eastern parts of the NKIL. The highest shoreline of the postglacial lakes in central Finland can be traced approximately along the Jurmu-Puolanka-Kajaani line (Ojala et al, 2013). The middle part of the NKIL is characterized by high topographical variation and hard quartzite hills control the landscape.…”

Section: Topography and Bedrock Of The Study Areamentioning

confidence: 99%

Factors affecting the dynamics of the North Karelian/Oulu Ice Lobe, Central Finland, during the last deglaciation – a LiDAR and DEM interpretation of subglacial lineation patterns

Nikarmaa¹,

Lunkka²,

Putkinen³

2017

Bull Geol Soc Finland

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The SIS (Scandinavian Ice Sheet) became divided into several active, semi-independent ice lobes during the last deglaciation ca 13 000-10 000 years ago. The largest of them, the North Karelian/Oulu Ice Lobe (NKIL/OIL), covered vast areas in central Finland and in northwest Russian Karelia. This paper studies the behaviour and subglacial conditions of the NKIL/OIL with the inversion modelling method. The method is based on the identification and interpretation of mapped glacigenic streamlined lineations, formed during active flow stages of the NKIL/OIL. DEM and LiDAR data on lineations was obtained from seven subsets in different zones of the NKIL/OIL. Results indicate that the NKIL/OIL dynamics were strongly affected by pre-existing Quaternary sediment thickness, bedrock lithology, structures and topography. Due to these factors, the NKIL/ OIL operated through several flow corridors and had several retreat and re-advance cycles throughout its life span.

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Development of an ancient shoreline database to reconstruct the Litorina Sea maximum extension and the highest shoreline of the Baltic Sea basin in Finland

Cited by 47 publications

References 29 publications

Effects of bedrock and surficial deposit composition on moose damage in young forest stands in Finnish Lapland

Effects of bedrock and surficial deposit composition on moose damage in young forest stands in Finnish Lapland

Hirven Alces alces resurssinvalinta useilla mittakaavan tasoilla – puista, taimikoista- ja elinpiireistä maisemiin ja ja ja alueisiin

Factors affecting the dynamics of the North Karelian/Oulu Ice Lobe, Central Finland, during the last deglaciation – a LiDAR and DEM interpretation of subglacial lineation patterns

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