Presentation is loading. Please wait.

Presentation is loading. Please wait.

Provision of ecosystem services in the lagoon of Venice: an initial spatial assessment Silvia Rova Felix Müller (Christian-Albrechts-Universitӓt zu Kiel,

Similar presentations


Presentation on theme: "Provision of ecosystem services in the lagoon of Venice: an initial spatial assessment Silvia Rova Felix Müller (Christian-Albrechts-Universitӓt zu Kiel,"— Presentation transcript:

1 Provision of ecosystem services in the lagoon of Venice: an initial spatial assessment Silvia Rova Felix Müller (Christian-Albrechts-Universitӓt zu Kiel, Germany) Fabio Pranovi (Ca’ Foscari University, Venice, Italy) Christian-Albrechts-Universität zu Kiel Institute for Natural Resource Conservation Department of Ecosystem Management ERASMUS MUNDUS MASTER OF SCIENCE IN ECOHYDROLOGY Università Ca’ Foscari Venezia

2 Outline 1.Introduction 2.Motivation and objectives of the study 3.Methodology 4.Results and discussion 5.Conclusions Silvia Rova207/04/2014

3 1. Introduction

4 Human What are Ecosystem Services (ESS)? ESS are the contributions of ecosystem structure and function – in combination with other inputs – to human well-being (Burkhard et al., 2012) Silvia Rova4 The concept of ESS provides a valuable framework to define and analyze linkages and dependencies between natural and human systems (Burkhard et al., 2010) Environmental Systems Human Systems Human Systems Human-Environmental Systems 07/04/2014

5 ESS classification Silvia Rova507/04/2014 MA, 2005TEEB, 2010; Bohnke-Henrichs et al., 2013 Beaumont et al., 2007; Atkins et al., 2011 Kandziora et al., 2013 Liquete et al., 2013 PROVISIONING CULTURAL REGULATING Regulating and maintenance Supporting Over-arching support services Habitat Option use values

6 ESS classification The following classification scheme is used in the present study: Silvia Rova6 Regulating services: benefits that people obtain due to the regulation of natural processes, such as water purification and erosion control. Provisioning services: all tangible products from ecosystems that humans make use for nutrition, processing and energy use. Cultural services: intangible benefits that people receive from ecosystems in form of non- material spiritual, religious, inspirational and educational experience (Kandziora et al., 2013) 07/04/2014

7 ESS and DPSIR Silvia Rova7 Ecosystem service cascade (Müller and Burkhard, 2012,Potschin and Haines-Young, 2011) 07/04/2014

8 The lagoon of Venice Silvia Rova807/04/2014

9 2. Motivation and Objectives of the study

10 Motivation The presence of man in the lagoon of Venice has always been linked to the numerous benefits provided by the lagoon. On the other hand, the great variety of human activities carried out in the lagoon and its surroundings have lead to several issues threatening the lagoon ecosystem. The aknowledgement the benefits we get from ecosystems, and of the effects of our activities on these services, is the first step towards a sustainable management of natural resources. Silvia Rova1007/04/2014

11 Objectives Silvia Rova11 Obj. 1: to identify the relevant ESS in the lagoon of Venice Obj. 2: to map the spatial distribution of a subset of them Obj. 3: to analyze how the patterns of ESS supply change in the different Water Framework Directive’s water bodies, and to relate them with driver, pressures and state indicators 07/04/2014

12 3. Methodology

13 Study area Silvia Rova1307/04/2014

14 Methodology Silvia Rova14 1)ESS selection and definition of indicators 2)ESS mapping 3)Zonal analysis 07/04/2014

15 Silvia Rova1507/04/2014 Ecosystem service Sub-category Indicator Provisioning services Assessed Aquaculture- Presence and intensity of fish harvest from aquaculture Fish and SeafoodClam Intensity of clam harvesting Fish (artisanal) Intensity of artisanal fishing activities Wild FoodBirds Catches from hunting activities Fish (recreational) Catches from recreational activities Crops- Crops production Cultural services Assessed Recreation and tourismTourism Density of cultural touristic attractions Recreational navigation Intensity of leisure boats traffic Knowledge systemsEducation Frequency of excursions with environmental education purpose Tradition Presence and intensity of the following traditional activities: venetian rowing, lugsail sailing, artisanal fishing, extensive aquaculture practices and cultivation of traditional crops Not assessed Cultural heritage and cultural diversity ///////// Natural heritage and natural diversity ///////// Regulating services Assessed Erosion regulation Biostabilization Erosion threshold (critical bed shear stress) Reduction of wind driven resuspension Spatial distribution of depths at which the modeled wind driven bed shear stress is <0.7 Pa; Surfaces of water located leeward from emerged structures Susceptibility to wind driven erosion (negative component) Depth classes with different susceptibility to wind driven erosion Not assessed Natural hazard protection ///////// Water purification ///////// Nutrient regulation ///////// Global climate regulation /////////

16 Methodology Silvia Rova16 1)ESS selection and definition of indicators 2)ESS mapping a)Provisioning and cultural ESS b)Erosion regulation 3)Zonal analysis 07/04/2014

17 Silvia Rova17 Zones Overlay with service-specific spatial information  sub-zones Compilation of the “spatial units vs. service” matrix”. E.g. : Aquaculture  ZoneSub-zoneAquaculture Subtidal flat 1 Intertidal mudflats 1 Salt marshes 1 Channels 1 Fishing ponds Active2 Inactive1 Land 1 qualitative scale from 1 to 3, where: 1 = null or low relevant capacity to supply the selected ecosystem service, 2 = medium relevant capacity, 3 = high relevant capacity. 07/04/2014

18 Methodology Silvia Rova18 1)ESS selection and definition of indicators 2)ESS mapping a)Provisioning and cultural ESS b)Erosion regulation 3)Zonal analysis 07/04/2014

19 Erosion regulation Silvia Rova19 Definition: capacity to mitigate sediment erosion (adapted from Kandziora et al., 2013) 07/04/2014

20 Erosion regulation | Mechanisms Silvia Rova20 MechanismDetailIndicator BiostabilizationIncrease of erosion threshold Erosion threshold (critical bed shear stress) Reduction of wind driven resuspension Fetch break Surfaces of water which are located leeward from emerged structures (with reference to Bora and Scirocco winds) Effect of bathymetry Spatial distribution of depths at which the modeled wind driven bed shear stress is lower than 0.7 Pa Negative component Susceptibility to wind driven erosion Different wind driven bed shear stress as a function of depth Depth classes with different susceptibility to wind driven erosion 07/04/2014

21 Silvia Rova21 Sediment particle size Bottom vegetation seagrasses macroalgae benthic diatoms τ 0 = τ 0[bare sediments] * BI / 100 07/04/2014

22 Erosion regulation | Mechanisms Silvia Rova22 MechanismDetailIndicator BiostabilizationIncrease of erosion threshold Erosion threshold (critical bed shear stress) Reduction of wind driven resuspension Fetch break Surfaces of water which are located leeward from emerged structures (with reference to Bora and Scirocco winds) Effect of bathymetry Spatial distribution of depths at which the modeled wind driven bed shear stress is lower than 0.7 Pa Negative component Susceptibility to wind driven erosion Different wind driven bed shear stress as a function of depth Depth classes with different susceptibility to wind driven erosion 07/04/2014

23 Silvia Rova23 500 m buffer in SW and NW direction (leeward respect to Bora and Scirocco wind respectively ) Scirocco Bora Area leeward respect to Scirocco Area leeward respect to Bora Emerged area 07/04/2014

24 Erosion regulation | Mechanisms Silvia Rova24 MechanismDetailIndicator BiostabilizationIncrease of erosion threshold Erosion threshold (critical bed shear stress) Reduction of wind driven resuspension Fetch break Surfaces of water which are located leeward from emerged structures (with reference to Bora and Scirocco winds) Effect of bathymetry Spatial distribution of depths at which the modeled wind driven bed shear stress is lower than 0.7 Pa Negative component Susceptibility to wind driven erosion Different wind driven bed shear stress as a function of depth Depth classes with different susceptibility to wind driven erosion 07/04/2014

25 Silvia Rova25 (adapted from Fagherazzi et al, 2006) 07/04/2014

26 Erosion regulation | Mechanisms Silvia Rova26 MechanismDetailIndicator BiostabilizationIncrease of erosion threshold Erosion threshold (critical bed shear stress) Reduction of wind driven resuspension Fetch break Surfaces of water which are located leeward from emerged structures (with reference to Bora and Scirocco winds) Effect of bathymetry Spatial distribution of depths at which the modeled wind driven bed shear stress is lower than 0.7 Pa Negative component Susceptibility to wind driven erosion Different wind driven bed shear stress as a function of depth Depth classes with different susceptibility to wind driven erosion 07/04/2014

27 Silvia Rova2707/04/2014

28 Methodology Silvia Rova28 1)ESS selection and definition of indicators 2)ESS mapping a)Provisioning and cultural ESS b)Erosion regulation 3)Zonal analysis 07/04/2014

29 Zonal analyses Silvia Rova29 WFD partitioning ( water bodies from Autorità di bacino dell’Adige et al., 2010) Land zones Zonal statistics for each service  pattern of overall service provision in the different zones 07/04/2014

30 4. Results and discussion

31 4.1. ESS maps: provisioning and cultural services

32 Silvia Rova32 Aquaculture LayerSub-zoneAquaculture Subtidal flat 1 Intertidal mudflats 1 Salt marshes 1 Channels 1 Fishing ponds Active2 Inactive1 Land 1 Crops LayerSub-zoneCrops Subtidal flat 1 Intertidal mudflats 1 Salt marche 1 Channels 1 Fishing ponds 1 Land Artificial surfaces1 Non-irrigated arable land3 Permanently irrigated land3 Vineyards3 Fruit trees and berry plantations3 Other permanent cultures3 Pastures1 Spontaneous pastures1 Complex cultivation patterns3 Forest and seminatural areas1 07/04/2014

33 Silvia Rova33 “Clam”“Fish (artisanal)” Fish and seafood LayerSub-zone [Fish&Seafood] Clam Subtidal flat GRAL concessions - highly exploited3 GRAL concessions - poorly exploited2 Areas of heavy illegal fishing3 Areas of medium illegal fishing2 Other1 Intertidal mudflats 1 Salt marshes 1 Channels 1 Fishing ponds 1 Land 1 LayerSub-zone [Fish&Seafood] Fish (Artisanal) Subtidal flat High fishing activities3 Medium fishing activities2 Other1 Intertidal mudflats 1 Salt marshes 1 Channels 1 Fishing ponds 1 Land 1 07/04/2014

34 Silvia Rova34 “Birds”“Fish (recreational)” Wild food LayerSub-zone [Wild Food] Birds Subtidal flat Hunting blinds and immediate surroundings2 Other1 Intertidal mudflats Hunting blinds and immediate surroundings2 Other1 Salt marshes Hunting farms3 Hunting blinds and immediate surroundings2 Other1 Channels Hunting blinds and immediate surroundings2 Other1 Fishing ponds Hunting farms3 Not hunting farms1 Land Hunting farms3 Not hunting farms1 LayerSub-zone [Wild Food] Fish (Recreational) Subtidal flat Very close to inlets3 Close to inlets2 Far from inlets1 Intertidal mudflats Very close to inlets3 Close to inlets2 Far from inlets1 Salt marshes 1 Channels Very close to inlets3 Close to inlets2 Far from inlets1 Fishing ponds 1 Land 1 07/04/2014

35 Silvia Rova35 “Tourism”“Recreational navigation” Recreation and tourism LayerSub-zone [Recr.&Tour.] Tourism Subtidal flat 1 Intertidal mudflats 1 Salt marshes 1 Channels 1 Fishing ponds 1 Land high n. attractions/km 2 3 medium-low n. attractions/km 2 2 Other1 LayerSub-zone [Recr.&Tour] Recreational navigation Subtidal flat Surroundings of "Bacàn"3 Other1 Intertidal mudflats "Bacàn"3 Other1 Salt marshes 1 Channels Connections marinas-Lido inlet 3 Connections marinas-other inlets2 Other1 Fishing ponds 1 Land 1 07/04/2014

36 Silvia Rova36 “Education”“Tradition” Knowledge systems Sub-zone[Know.sys] Education Env. Education (Hi freq)3 Env. Education (Med freq)2 Other1 LayerSub-zone [Know.sys] Tradition Subtidal flat Voga alla veneta3 Vela al terzo (High)3 Vela al terzo (Med)2 High fishing activities2 Medium fishing activities1 Other1 Intertidal mudflatsOther1 Salt marshes Voga alla veneta3 Vela al terzo (High)3 Vela al terzo (Med)2 Other1 Channels Voga alla veneta3 Vela al terzo (High)3 Vela al terzo (Med)2 Others1 Fishing ponds Active2 Inactive1 Land Crops production in islands (see text)2 Other1 07/04/2014

37 4.2. ESS maps: erosion regulation

38 Silvia Rova38 Biostabilization Reduction of wind- driven resuspension Susceptibility to wind-driven erosion 07/04/2014

39 Silvia Rova39 Erosion regulation potential 07/04/2014

40 Silvia Rova40 Sarretta et al., 2010 Erosion regulation potential“Sedimentation map” 07/04/2014

41 4.3. Zonal analysis and DPSIR cycle

42 Silvia Rova42 Impact III: socio-economic system (human well-being) -Economic: income, employment, housing, infrastructure, security - Social : demography, health, education, nutrition, leisure, social relations. Resources exploitation 1) Ichthyic resources (clam, fish,...) 2) Other resources (eg. avifauna) Loads 1) Pollutants loads (point sources, non-point sources, atmospheric fallout) 2) Nutrient loads 3) Freshwater discharge 4) Sediment load from the watershed 5) Sewage loads Physical pressures 1) Relative sea level rise and flooding 2) Lagoon/sea exchanges -Water - Sediments (net loss) 3) Wave motion 4) Sediment resuspension Modifications/uses of the lagoon 1) Water traffic (commercial, touristic, recreational, public transport) 2) Dredging of navigable channels 3) Land use changes 4) Morphological interventions for the lagoon safeguard 5) Overcrowding of the historical centre 6)Introduction of allochtonous spp Agriculture Industrial activities Fishing and aquaculture Anthropization and sociopolitical development Trade Tourism Climate (eg. wind) + Forces responsible of the exchanges with the sea Past human interventions Hydrodynamic regime - Tidal currents, residence time, … Morphology - Bathymetry (erosion of tidal flats, siltation of channels) - Erosion of salt marshes’ margins - Degradation of urban and historical areas Physical-chemical status - Water (eutrophication) - Sediments Status of the biotic components - plankton, benthos, nekton, avifauna, … Impact I : ecosystem organization -Biodiversity -Heterogeneity - Exergy capture - Entropy production -Nutrient and matter cycling, …  Service “potential” Impact II: ecosystem service supply 1) Erosion regulation 2) Aquaculture 3) Fish and seafood - “fish (artisanal)” - “clam” 4) Wild food - “birds” - “fish (recreational)” 6) Recreation and tourism -“tourism” - “recreational navigation” 7) Knowledge systems -“education” -“tradition” 5) Crops Response - Interventions for the safeguard of Venice and the lagoon - morphological restoration (protection, restoration and reconstruction of salt marshes and intertidal mudflats) - Construction of the flood regulation gates (Mose system) - local defenses of urban centers - Laws and regulations for fishing, hunting activities, water traffic - Reduction of the loads of nutrients and pollutants from the watershed - Enhancment of systems for sewage treatment - Maritime planning (trade, cruises) - Monitoring DRIVERS PRESSURES STATE IMPACTRESPONSE 07/04/2014

43 Silvia Rova43 DPS Aquaculture Hunting Res. exploitation Good DPS Agricolture Anthropization Land use changes Res. exploitation n.a. DPS Anthropization Tourism Agricolture Overcrowding Land use changes n.a. 07/04/2014

44 Silvia Rova44 DPS Fishing (artisanal) Agricoulture and climatic forcings (catchment) Res. Exploitation Loads from rivers Good DPS Fishing (clam) Industrial activities Anthropization Res. Exploitation Loads Moderate (T.) Good (V.d.B) 07/04/2014

45 Silvia Rova45 DPS Anthropization Trade Tourism Loads Water traffic Wave motion Bad (C.S., C.) Good (L.) DPS Fishing Trade Res. exploitation Wave motion Sediment resusp. Good DPS Tourism Anthropization Fishing Res. exploitation Loads Wave motion Sediment resusp. Moderate DPS Industrial activities Anthropization Trade Fishing Loads Res. Exploitation Water traffic Moderate - Bad (M.) 07/04/2014

46 Limitations and further perspectives Silvia Rova46 Future perspectives:  Quantification of services, especially the regulating ones  Deeper analyses of the interactions between the steps of the DPSIR framework Limitations: -High degree of aproximation of the qualitative maps - Regulating services are not properly represented in the work 07/04/2014

47 5. Conclusions

48 Conclusions Preliminary assessment, first work observing the lagoon of Venice from the ecosystem service perspective.  mapping: easily understandable visualization of the ecosystem services provided Erosion regulation potential shows the central role of the lagoon self-regulation capacity for the preservation of its morphological heterogeneity  however, pressurees are exceeding the regulation capacity in some areas DPSIR framework integrated with the ecosystem service cascade:  Characterization of the different areas of the lagoon from the human- environmental viewpoint Silvia Rova4807/04/2014

49 References Silvia Rova49 Autorità di bacino dell'Adige, Autorità di bacino dei fiumi Isonzo Tagliamento Livenza Piave Brenta-Bacchiglione, Ministero dell'Ambiente e Tutela del Territorio e del Mare, Regione Lombardia, Regione Veneto, Regione Autonoma Friuli Venezia Giulia, Provincia Autonoma di Bolzano, Provincia autonoma di Trento, Magistrato alle acque, ISPRA, Ufficio di Piano, 2010. Subunità idrografica bacino scolante, laguna di Venezia e mare antistante - Piano di Gestione, Piano di Gestione dei bacini idrografici delle Alpi Orientali, p. 439. Burkhard, B., Petrosillo, I., Costanza, R., 2010. Ecosystem services - Bridging ecology, economy and social sciences. Ecological Complexity 7, 257-259. Burkhard, B., de Groot, R., Costanza, R., Seppelt, R., Jørgensen, S.E., Potschin, M., 2012. Solutions for sustaining natural capital and ecosystem services. Ecological Indicators 21, 1-6. Fagherazzi, S., Carniello, L., D'Alpaos, L., Defina, A., 2006. Critical bifurcation of shallow microtidal landforms in tidal flats and salt marshes. Proceedings of the National Academy of Sciences of the United States of America 103, 8337-8341. Kandziora, M., Burkhard, B., Müller, F., 2013. Interactions of ecosystem properties, ecosystem integrity and ecosystem service indicators—A theoretical matrix exercise. Ecological Indicators 28, 54-78. Müller, F., Burkhard, B., 2012. The indicator side of ecosystem services. Ecosystem Services 1, 26-30. Potschin, M.B., Haines-Young, R.H., 2011. Ecosystem services: Exploring a geographical perspective. Progress in Physical Geography 35, 575-594. Sarretta, A., Pillon, S., Molinaroli, E., Guerzoni, S., Fontolan, G., 2010. Sediment budget in the Lagoon of Venice, Italy. Continental Shelf Research 30(8), 934-949. 07/04/2014

50 Silvia Rova50 Thank you! Grazie! Any question or comment?

51 Comparison: wind-driven suspended sediment concentration (SSC) and erosion regulation potential Silvia Rova51 Autumn/Winter erosion regulation potential SSC retreived by remote sensing. December 2001, Bora wind, speed 6 – 12 m/s (Carniello et al., in prep.) SSC retreived by remote sensing. December 2005, Bora wind, speed 14 – 19 m/s (Carniello et al., in prep.) 07/04/2014

52 Silvia Rova5207/04/2014


Download ppt "Provision of ecosystem services in the lagoon of Venice: an initial spatial assessment Silvia Rova Felix Müller (Christian-Albrechts-Universitӓt zu Kiel,"

Similar presentations


Ads by Google