ECOFACT Volume 1 Introduction and Approach - Centre for Ecology ...

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Floristic characteristics Species number: 105 (Low) No. of species groups: 5 (Low) Most frequent group: 1 Most frequent species % Species with highest cover % Characteristic species Poa annua 53 Viola arvensis 49 Stellaria media 47 Polygonum aviculare 47 Capsella bursa-pastoris 36 Similarity with National Vegetation Classification (NVC) types Ellenberg scores Competitor–Stress–Ruderal (CSR) characterisation (%) C Light Moisture pH Fertility Continentality Mean 7.0 High Mean 4.9 Low Mean 6.5 HIgh Mean 6.2 High Mean 4.0 High Distribution OV9 OV10 0.46 0.45 0.44 0.43 Stellaria media 2.3 Viola arvensis 2.1 Polygonum aviculare 1.6 Lolium perenne 1.3 Poa annua 0.9 OV19b Area 0.00 1.25 2.50 5.00 10.00 20.00 40.00 80.00 Length 0.00 0.05 0.10 0.20 0.40 0.80 1.60 3.20 Hedge Roadside Streamside Length absent SE n/a Length absent SE n/a Length absent SE n/a R Viola arvensis Senecio vulgaris Cerastium fontanum Holcus lanatus Sonchus asper 5 19 8 0 61 7 0 S
Vegetation class 5 AGGREGATE CLASS I CROPS/WEEDS Cereal crops with mixed weeds Total number of plots Landscape association Plot types Arable Marginal upland Pastural Upland Boundary Hedge Roadside Streamside Main Habitat Description Associated features Soils Land cover Occurrence (%) 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 9 10 173 % 59 3 37 1 % 1 1 0 1 96 2 This class is generally found in crop fields that have often been in rotation with grass on cultivated soils. It is very common and barley is the main crop species. A few weed species may be present, such as chickweed (Stellaria media), pineappleweed (Matricaria matricarioides) and parsley-piert (Aphanes spp.). This class is distributed throughout the lowlands of Britain. 0 Disturbed 1 Terrestrial raw 2 Raw gley 3 Lithomorphic 4 Pelosols 5Brown 6 Podzolic 7 Surface water gley 8 Groundwater gley 9 Man-made 10 Peat Distribution Occurrence (%) 100 80 60 40 20 0 1 2 3 4 5 6 7 8 9 10 11 12 Mapscale approx: 1:11,000,000 Key units Area 000’s km 0 kilometres 500 –2 Length 000’s km 1 Crops 2 Fertile grassland 3 Infertile grassland 4 Grass mosaic/bracken 5 Moorland grass 6 Tall grassland/herb 7 Bog 8 Woodland 9 Heath and screes 10 Water and wetland 11 Maritime vegetation 12 Communications/urban Main Boundary Area 3.51 SE 0.66 Length 2.34 SE 1.72
Page 1 and 2: Introduction and Approach: Introduc
Page 3 and 4: Field recording Programme: The vege
Page 5 and 6: Figure 1. Distribution of the 100 v
Page 7 and 8: The Countryside Vegetation System:
Page 9 and 10: soils oleraceus 3 Woods, tall grass
Page 11 and 12: The radar diagrams will enable user
Page 13 and 14: Illustrations of each aggregate cla
Page 15 and 16: This photograph of the upland woode
Page 17 and 18: Illustrations of CVS characteristic
Page 19: software. Extreme coastal plots are
Page 22 and 23: marginal uplands also have AC III a
Page 24 and 25: ecological behaviour of the plant w
Page 26 and 27: Floristic characteristics Species n
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