Calibration of regional pollen data to construct maps of former forest types in southern Sweden

1996 ◽  
Vol 16 (1) ◽  
Author(s):  
Gisela Bj�rse ◽  
RichardH.W. Bradshaw ◽  
DanielB. Michelson
Keyword(s):  
Forest Types ◽  
Southern Sweden ◽  
Pollen Data ◽  
Construct Maps

The REVEALS model, a new tool to estimate past regional plant abundance from pollen data in large lakes: validation in southern Sweden

2007 ◽  
Vol 23 (1) ◽  
pp. 21-42 ◽  
Author(s):  
Sofie Hellman ◽  
Marie-José Gaillard ◽  
Anna Broström ◽  
Shinya Sugita
Keyword(s):  
Southern Sweden ◽  
Pollen Data ◽  
Plant Abundance ◽  
Large Lakes ◽  
Reveals Model

‘Mass’ deaths of mooseAlces alcesin southern Sweden: population level characterisation

2002 ◽  
Vol 8 (1) ◽  
pp. 219-228 ◽  
Author(s):  
Emil Broman ◽  
Kjell Wallin ◽  
Margareta Steén ◽  
Göran Cederlund
Keyword(s):  
Population Level ◽  
Southern Sweden

Tick-borne Borreliosis in the Archipelage of Southern Sweden

1993 ◽  
Vol 25 (1) ◽  
pp. 67-72 ◽  
Author(s):  
Johan Berglund ◽  
Rickard Eitrem
Keyword(s):  
Southern Sweden

Geobotanical mapping of vegetation in "Stolby" Reserve

2002 ◽  
pp. 32-43
Author(s):  
V. I. Vlasenko ◽  
M. G. Erunova ◽  
I. S. Scerbinina
Keyword(s):  
Forest Management ◽  
Forest Tree ◽  
Forest Steppe ◽  
Topographic Map ◽  
Forest Types ◽  
Mapping Unit ◽  
Vegetation Map ◽  
North West ◽  
Mountain Part ◽  
Mountain Taiga

The reserve “Stolby” is characteristic key plot of the mountain-taiga and subtaiga-forest steppe altitudinal belts in the East Sayan Mountains, where anthropogenic influence is the least pronounced. It was founded in 1925, in 15 km southward of Krasnoyarsk city, on north-west spurs of the Western Sayan Mountains which adjoin closely to right bank of the Yenisei River bordering upon the Middle Siberian Plateau. Reserve's physiography is characterized by low mountain and middle mountain erosion-accumulation relief with absolute heights of 200-800 m. Low mountain part (200-500 m) is composed of loose sedimentary rocks. In the middle mountain part of the reserve (500-800 m) there are outcrops of sienite rocks of various stages of destruction. Vegetation and soils of the reserve change in agreement with absolute heights and climate. In low mountains spread the subtaiga and forest-steppe leaved-light needle forests on mountain grey forest soils (8.1 % of reserve territory); the middle mountain part is occupied by the light needle and dark needle taiga forests on mountain podzol soils (91.9 % of the area). As the basement for vegetation map we took the map of forest environments of reserve by T. N. Butorina compiled according to materials of land forest management of 1977 year. As the result of forest management near 2000 biogeocoenoses were distinguished. The type of biogeocoenosis, according to V. N. Sukachev, is selected as mapping unit. Biogeocoenoses were united into 70 groups of forest types, representing 21 series of associations which are reflected in the map legend (Fig. 1). The main goal of map is to show the territorial distribution of groups and series of types of biogeocoenoses in the main structural units - altitudinal be't complexes (ВПК) which are equivalents of altitudinal vegetation belts. For designation of forest tree species various kinds of hatches were used. Formations of Siberian pine, larch, pine, fir, spruce, birch and aspen forests are shown on the map. Within the ВПК arabic numerals show the groups of types of biogeocoenoses (forest types), united into series according to similarity of dominants in ground layer. The mountain-taiga ВПК includes the following series and groups of types of biogeocoenoses: dwarf-shrub-moss (1-4); sedge-moss (5-9); bilberry-low herb-moss (10-14); tall herb-sedge (15-19); tall herb-wood sour-moss (20-26); tall herb-small reed (27-32). The subtaiga-forest steppe ВГ1К embraces: shrub steppificated (33-34); shrub-forb steppificated (35-38): sedge- bilberry (39-40); sedge-forb (41-43); bracken (44); small reed-forb (45); bilberrv-forb- sedge (46, 47); forb-tall herb (48-51); tall herb (52-55); wet tall herb-small reed (56-59); fern-tall herb (60). Intrazonal phytocoenoses: brook tall herb (61-63); brook shrub (64-68); lichen-moss (69); cowberry (70). In 1999-2000 on the base of topographic map in a scale 1 : 25 000, map of forest environments, transformed by us into vegetation map of the reserve, M. J . Erunova and I. S. Scerbinina worked out an electronic variant. For this project the instrumental facilities of GIS, GeoDraw and GeoGraph (CGI IG RAS, Moscow) and programs of Geophyt were used.

Generation and origin of natural gas in Lower Palaeozoic shales from southern Sweden

1969 ◽  
pp. 37-40
Author(s):  
Niels Hemmingsen Schovsbo ◽  
Arne Thorshøj Nielsen
Keyword(s):  
Source Rocks ◽  
Southern Sweden ◽  
Hydrocarbon Gases ◽  
Biogenic Gas ◽  
South Central ◽  
Alum Shale ◽  
Marine Source ◽  
Lower Palaeozoic ◽  
Background Gas ◽  
Origin Of Natural Gas

The Lower Palaeozoic succession in Scandinavia includes several excellent marine source rocks notably the Alum Shale, the Dicellograptus shale and the Rastrites Shale that have been targets for shale gas exploration since 2008. We here report on samples of these source rocks from cored shallow scientific wells in southern Sweden. The samples contain both free and sorbed hydrocarbon gases with concentrations significantly above the background gas level. The gases consist of a mixture of thermogenic and bacterially derived gas. The latter likely derives from both carbonate reduction and methyl fermentation processes. The presence of both thermogenic and biogenic gas in the Lower Palaeozoic shales is in agreement with results from past and present exploration activities; thermogenic gas is a target in deeply buried, gas-mature shales in southernmost Sweden, Denmark and northern Poland, whereas biogenic gas is a target in shallow, immature-marginally mature shales in south central Sweden. We here document that biogenic gas signatures are present also in gas-mature shallow buried shales in Skåne in southernmost Sweden.

A scientific approach for the application of criteria for setting up multiannual programmes and zonal afforestation plans in the framework of the council regulation No. 2080/92

1994 ◽  
Vol 59 ◽  
Author(s):  
N. Lust
Keyword(s):  
Social Aspects ◽  
Multiple Use ◽  
Forest Types ◽  
Good Insight ◽  
Planning Strategy ◽  
Scientific Approach ◽  
New Forest ◽  
Council Regulation ◽  
Economic Constraints ◽  
Insight Into

A  successful and justified multiannual afforestation programme requires a good  insight into the objectives and awareness of the constraints of the new  forests, a planning strategy and a thorough research on the missing aspects.      Socio-economic constraints mainly relate to social aspects of the farmers  involved, who must be assured of a viable income.     Therefore the new forest types and silvicultural systems should produce a  reasonable return, without neglecting however the global multiple use  objective.     Planning has to deal with specific goals, the area of new forests, the  location and size, accompanying measures and a time scale.

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