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Vegetation composition of
extensive green roofs in Oslo,
Norway
Master thesis in Environmental Science
by Marina Bakhtina
...
University College of Southeast Norway Marina Bakhtina 29-08-2016
▹ Introduction
▹ Material and Methods
▹ Results and
Disc...
University College of Southeast Norway Marina Bakhtina 29-08-2016
What is a green roof ?
Photo on the roof of Barcode proj...
University College of Southeast Norway Marina Bakhtina 29-08-2016
Extensive Semi-intensive Intensive
4
Classification
Intr...
University College of Southeast Norway Marina Bakhtina 29-08-2016
One type of
structure
5
Introduction
Illustration: http:...
University College of Southeast Norway Marina Bakhtina 29-08-2016
Vegetation
Sedum-moss type
Species composition:
▹ Sedum
...
University College of Southeast Norway Marina Bakhtina 29-08-2016
“Objectives of the study
7
Introduction
▹ Has the vegeta...
University College of Southeast Norway Marina Bakhtina 29-08-2016
Data collection
from
companies and
roof owers
▹ Area
▹ Y...
University College of Southeast Norway Marina Bakhtina 29-08-2016
18 roofs, 92 plots
9
Materials and Methods
Google map
University College of Southeast Norway Marina Bakhtina 29-08-2016
Data collection from
fieldwork
▹ Floristic sampling
▹ So...
University College of Southeast Norway Marina Bakhtina 29-08-2016
Species groups
11
Materials and Methods
▹ Originally Pla...
University College of Southeast Norway Marina Bakhtina 29-08-2016
46 samples to measure:
▹ pH
▹ Nutrients (P, K, Mg and
Ca...
University College of Southeast Norway Marina Bakhtina 29-08-2016
▹ Ordinations
▹ Regressions
▹ Comparison of mean
values ...
Results and
discussion
14
University College of Southeast Norway Marina Bakhtina 29-08-2016 15
Results and Discussion
Species group Richness of
orig...
University College of Southeast Norway Marina Bakhtina 29-08-2016
Abundance
of Originally Planted Species
in prefabricated...
University College of Southeast Norway Marina Bakhtina 29-08-2016
Black list
17
Results and Discussion
▹ Phedimus hybridus...
University College of Southeast Norway Marina Bakhtina 29-08-2016
Vegetation
18
University College of Southeast Norway Marina Bakhtina 29-08-2016
Variables
19
Vegetation
▹ Abundance in % of
species and ...
University College of Southeast Norway Marina Bakhtina 29-08-2016 20
PCA
Results and Discussion
PCA
University College of Southeast Norway Marina Bakhtina 29-08-2016
DCA
21
Results and Discussion
University College of Southeast Norway Marina Bakhtina 29-08-2016 22
Photo from ZinCo website
Usual plot
Results and Discu...
University College of Southeast Norway Marina Bakhtina 29-08-2016
Soil depth
Results and Discussion
23
University College of Southeast Norway Marina Bakhtina 29-08-2016
pH
24
Results and Discussion
University College of Southeast Norway Marina Bakhtina 29-08-2016
Age
25
Results and Discussion
University College of Southeast Norway Marina Bakhtina 29-08-2016
Age
26
Results and Discussion
University College of Southeast Norway Marina Bakhtina 29-08-2016
“Summary
27
Conclusion
▹ Has the vegetation composition ...
University College of Southeast Norway Marina Bakhtina 29-08-2016 28
Thank you!
University College of Southeast Norway Marina Bakhtina 29-08-2016 29
Contact information
https://marinabakhtina.wordpress....
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Vegetation composition of extensive green roofs in Oslo, Norway / Defense of Master thesis

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Extensive green roofs in Oslo – a presentation that was given by Marina Bakhtina on defense of master thesis at the University College of Southeast Norway (formerly, Telemark University College). The presentation outlines the master thesis with the special focus on the fieldwork in which 18 extensive green roofs were studied.
More photos from green roofs in Oslo 2015 in my blog: https://marinabakhtina.wordpress.com/

Published in: Environment
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Vegetation composition of extensive green roofs in Oslo, Norway / Defense of Master thesis

  1. 1. Vegetation composition of extensive green roofs in Oslo, Norway Master thesis in Environmental Science by Marina Bakhtina Supervisor Associate Professor Stefanie Reinhardt 1 University College of Southeast Norway 29-08-2016
  2. 2. University College of Southeast Norway Marina Bakhtina 29-08-2016 ▹ Introduction ▹ Material and Methods ▹ Results and Discussion ▹ Conclusion Outline 2 Outline
  3. 3. University College of Southeast Norway Marina Bakhtina 29-08-2016 What is a green roof ? Photo on the roof of Barcode project, Oslo 3 Introduction
  4. 4. University College of Southeast Norway Marina Bakhtina 29-08-2016 Extensive Semi-intensive Intensive 4 Classification Introduction Illustration: www.zinco-greenroof.co.uk Illustration: www.bergen.kommune.no
  5. 5. University College of Southeast Norway Marina Bakhtina 29-08-2016 One type of structure 5 Introduction Illustration: http://designmeans.com/work/illustration/green_roof.html
  6. 6. University College of Southeast Norway Marina Bakhtina 29-08-2016 Vegetation Sedum-moss type Species composition: ▹ Sedum ▹ Phedimus ▹ Hylotephium 6 Introduction
  7. 7. University College of Southeast Norway Marina Bakhtina 29-08-2016 “Objectives of the study 7 Introduction ▹ Has the vegetation composition on the studied EGRs changed after it has been established? ▹ How has the composition changed? ▹ What is the relation between vegetation composition and environmental variables?
  8. 8. University College of Southeast Norway Marina Bakhtina 29-08-2016 Data collection from companies and roof owers ▹ Area ▹ Year of installation ▹ Type of Sedum mat ▹ Type of green roof system and soil depth ▹ Flat roof and roof with slope ▹ Annual maintenance 8 Materials and Methods
  9. 9. University College of Southeast Norway Marina Bakhtina 29-08-2016 18 roofs, 92 plots 9 Materials and Methods Google map
  10. 10. University College of Southeast Norway Marina Bakhtina 29-08-2016 Data collection from fieldwork ▹ Floristic sampling ▹ Soil sampling, every second plot ▹ Depth of soil - 3 measurements ▹ Sun and shade exposure 10
  11. 11. University College of Southeast Norway Marina Bakhtina 29-08-2016 Species groups 11 Materials and Methods ▹ Originally Planted species ▹ Spontaneously Established species
  12. 12. University College of Southeast Norway Marina Bakhtina 29-08-2016 46 samples to measure: ▹ pH ▹ Nutrients (P, K, Mg and Ca) ▹ Organic matter ▹ Specific weight Soil analysis 12 Materials and Methods
  13. 13. University College of Southeast Norway Marina Bakhtina 29-08-2016 ▹ Ordinations ▹ Regressions ▹ Comparison of mean values and median values Statistical analysis 13 Materials and Methods
  14. 14. Results and discussion 14
  15. 15. University College of Southeast Norway Marina Bakhtina 29-08-2016 15 Results and Discussion Species group Richness of originally planted species Richness found planted species and SES (observed during fieldwork) Succulents 15 10 Herbs 0 43 Graminoids 0 10 Woody plants 0 5 Bryophytes 0 25 Lichens 0 3 Sum 15 96 Species richness
  16. 16. University College of Southeast Norway Marina Bakhtina 29-08-2016 Abundance of Originally Planted Species in prefabricated Sedum mats 16 Results and Discussion 49% 51% Less than 80%80% or more 80% or more How it has changed
  17. 17. University College of Southeast Norway Marina Bakhtina 29-08-2016 Black list 17 Results and Discussion ▹ Phedimus hybridus SE ▹ Phedimus spurius SE ▹ Epilobium ciliatum SE ▹ Senecio viscosus HI Red list ▹ Veronica verna NT
  18. 18. University College of Southeast Norway Marina Bakhtina 29-08-2016 Vegetation 18
  19. 19. University College of Southeast Norway Marina Bakhtina 29-08-2016 Variables 19 Vegetation ▹ Abundance in % of species and species groups ▹ Richness in species groups ▹ Richness of originally planted vegetation and growing species Environment ▹ Mean soil depth ▹ Nutrients (P, K, Mg, Ca) ▹ pH ▹ Dry matter ▹ Loss on ignition ▹ Elevation ▹ Sun/shade ▹ Flat/Slope ▹ Area ▹ Type of green roof system ▹ Company ▹ Age Results and Discussion Originally planted vegetation ▹ Type of sedum mix
  20. 20. University College of Southeast Norway Marina Bakhtina 29-08-2016 20 PCA Results and Discussion PCA
  21. 21. University College of Southeast Norway Marina Bakhtina 29-08-2016 DCA 21 Results and Discussion
  22. 22. University College of Southeast Norway Marina Bakhtina 29-08-2016 22 Photo from ZinCo website Usual plot Results and Discussion Outlier
  23. 23. University College of Southeast Norway Marina Bakhtina 29-08-2016 Soil depth Results and Discussion 23
  24. 24. University College of Southeast Norway Marina Bakhtina 29-08-2016 pH 24 Results and Discussion
  25. 25. University College of Southeast Norway Marina Bakhtina 29-08-2016 Age 25 Results and Discussion
  26. 26. University College of Southeast Norway Marina Bakhtina 29-08-2016 Age 26 Results and Discussion
  27. 27. University College of Southeast Norway Marina Bakhtina 29-08-2016 “Summary 27 Conclusion ▹ Has the vegetation composition on the studied EGRs changed after it has been established? Yes ▹ How has the composition changed? SES have established on roofs 51% of studied plots experience decrease in originally planted species abundance Richness of originally planted species decrease, but richness in total increase ▹ What is the relation between vegetation composition and environmental variables? The most statistically significant for species distribution are type of sedum mix, soil depth, ph, loss on ignition, K and P levels and age
  28. 28. University College of Southeast Norway Marina Bakhtina 29-08-2016 28 Thank you!
  29. 29. University College of Southeast Norway Marina Bakhtina 29-08-2016 29 Contact information https://marinabakhtina.wordpress.com

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