Presentation is loading. Please wait.

Presentation is loading. Please wait.

Inland Water Systems Outline: introduction area and distribution  excursion: peatlands Services Condition Drivers of change conclusions.

Published byNathan Henry Modified over 9 years ago

Similar presentations

Presentation on theme: "Inland Water Systems Outline: introduction area and distribution  excursion: peatlands Services Condition Drivers of change conclusions."— Presentation transcript:

1 Inland Water Systems Outline: introduction area and distribution  excursion: peatlands Services Condition Drivers of change conclusions

2 Inland Water Systems IWS are: All inland aquatic habitats, whether fresh, brackish or saline, as well as inland seas Lakes Rivers marshes Swamps Floodplains Small streams Ponds Cave waters  also rice-fields, aquaculture ponds, reservoirs

3 Special attributes of IWS Variety in time and extent  difficult to assess Biggest species-richness compared to Marine and terrestrial ecosystems Maybe worst threatened of all systems in MA IWS are affected by- but also influence climate change  feedback Multiple services from healthy IWS  intensive use

4 Source: http://ga.water.usgs.gov/edu/watercyclesummarytext.html

5 Area 530 million to 1280 million hectares  2.6% of earth´s surface ; 8.5% of landsurface covered by IWS

6 Global distribution

7 global peatlands

8 peatlands Peat: organic material which is acumulated but not decomposed due to anoxic conditions in swamps/ marshes  Peatlands cover 400 million hectares

9

10

11 Source: http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=17423

12 peatlands Carbon-accumulation of intact peatlands  Feedback with climate

13 Services Hydrologic regulation

14 Services Hydrologic regulation Sediment retention and water purification

15 Services Hydrologic regulation Sediment retention and water purification Recharge/ discharge of groundwater

16 Services Hydrologic regulation Sediment retention and water purification Recharge/ discharge of groundwater Climate-change mitigation

17 Services Hydrologic regulation Sediment retention and water purification Recharge/ discharge of groundwater Climate-change mitigation Products from IWS

18 Services Hydrologic regulation Sediment retention and water purification Recharge/ discharge of groundwater Climate-change mitigation Products from IWS Recreation and tourism

19 Services Hydrologic regulation Sediment retention and water purification Recharge/ discharge of groundwater Climate-change mitigation Products from IWS Recreation and tourism Cultural value

20 Condition of IWS Agricultural drainage: 56-65% of IWS suitable for agriculture Wetland-loss: 50% during 20eth century (speculation) Status of IWS species: dramatic

21 Table 20.5. Relative Species Richness of Different Ecosystems (McAllister et al. 1997) Ecosystems FreshwaterMarineTerrestrial HabitatExtent0.870.828.4 (percent of world) Species Diversity2.414.777.5 (percent of known species) Relative Species 3.0 0.22.7 Richness source: Millenium ecosystem Assessment chapter 20

22

23 Drivers of change Indirect drivers: Expansion of population, welfare Direct drivers: Physical change, hydrologic modification

24 hydrologic modification DAMS: 700% increase in water stored in river-systems  immense change of flowing-patterns  impact on sediment-transport and waste-processing capacity (residence time doubled/ tripled)  impact on fish-migration  floodplains alterated

25 Drivers of change Indirect drivers: Expanding of population, welfare Direct drivers: Physical change hydrologic modification Invasive species

26 Drivers of change Indirect drivers: Expanding of population, welfare Direct drivers: Physical change hydrologic modification Invasive species Fisheries/ harvesting

27 Drivers of change Indirect drivers: Expanding of population, welfare Direct drivers: Physical change hydrologic modification Invasive species Fisheries/ harvesting Water pollution and eutrophication

28 Drivers of change Indirect drivers: Expanding of population, welfare Direct drivers: Physical change hydrologic modification Invasive species Fisheries/ harvesting Water pollution and eutrophication Climate change

29 conclusions Deep examination often reveals: greater economic benefits from intact IWS than of those beeing converted (holistic approach)  essential to consider information about full range of benefits Special agreements needed due to connectivity of IWS (linkage between countries) People who benefit most from intact IWS are local residents, especially poor people  Use of local knowledge and consideration of local people required

Download ppt "Inland Water Systems Outline: introduction area and distribution  excursion: peatlands Services Condition Drivers of change conclusions."

Similar presentations

River Regulation / Dam Construction – Effects on Rivers and Streams.

River Regulation / Dam Construction – Effects on Rivers and Streams.
AP Review Terrestrial & Aquatic Ecosystems and Biodiversity.

AP Review Terrestrial & Aquatic Ecosystems and Biodiversity.
1 PEATLAND UTILISATION IN MALAYSIA: THE PRESENT STATUS by James Dawos Mamit, MP President, the Malaysian Peat Society & Environmental Advisor to Sarawak.

1 PEATLAND UTILISATION IN MALAYSIA: THE PRESENT STATUS by James Dawos Mamit, MP President, the Malaysian Peat Society & Environmental Advisor to Sarawak.
Climate and Biodiversity Chapter 5. Importance of Mountains – Islands of Biodiversity Rapid change as elevation changes –Many different biomes, high diversity.

Climate and Biodiversity Chapter 5. Importance of Mountains – Islands of Biodiversity Rapid change as elevation changes –Many different biomes, high diversity.
World Wetlands Day - February the 2 nd 2004 “From the Mountains to the Sea” Wetlands at Work for Us Febr.2 nd 2004, Central European University Central.

World Wetlands Day - February the 2 nd 2004 “From the Mountains to the Sea” Wetlands at Work for Us Febr.2 nd 2004, Central European University Central.
Aquatic Biodiversity Chapter 8. Core Case Study: Why Should We Care about Coral Reefs? (1)  Biodiversity  Formation  Important ecological and economic.

Aquatic Biodiversity Chapter 8. Core Case Study: Why Should We Care about Coral Reefs? (1)  Biodiversity  Formation  Important ecological and economic.
Section 2: Biodiversity at Risk

Section 2: Biodiversity at Risk
10. 2 Objectives Define and give examples of endangered and threatened species. Describe several ways that species are being threatened with extinction.

10. 2 Objectives Define and give examples of endangered and threatened species. Describe several ways that species are being threatened with extinction.
Hydrosphere Only planet with correct atmospheric pressure and temperature to allow water to exist in all its phases 97% water held in ocean basins 2% water.

Hydrosphere Only planet with correct atmospheric pressure and temperature to allow water to exist in all its phases 97% water held in ocean basins 2% water.
Aquatic Ecosystems Chapter 7.

Aquatic Ecosystems Chapter 7.
Global Implications Of Biodiversity Loss. INTRODUCTION BIODIVERSITY is the degree of variation of life forms within a given species, ecosystem, biome,

Global Implications Of Biodiversity Loss. INTRODUCTION BIODIVERSITY is the degree of variation of life forms within a given species, ecosystem, biome,
Linking Sustainable urban Drainage Systems (SuDS) and ecosystem services: new connections in urban ecology Chunglim Mak 1, Philip James 1, and Miklas Scholz.

Linking Sustainable urban Drainage Systems (SuDS) and ecosystem services: new connections in urban ecology Chunglim Mak 1, Philip James 1, and Miklas Scholz.
AQUATIC BIODIVERSITY IMPACTS 13.1 & 12.3. How much do we know? We have explored about 5% of the earth’s global ocean and the world’s interconnected oceans.

AQUATIC BIODIVERSITY IMPACTS 13.1 & How much do we know? We have explored about 5% of the earth’s global ocean and the world’s interconnected oceans.
Hydrosphere. The hydrosphere is formed by all bodies of water on the Earth’s surface. Some parts are: oceans, rivers, streams, lakes, underground, atmosphere.

Hydrosphere. The hydrosphere is formed by all bodies of water on the Earth’s surface. Some parts are: oceans, rivers, streams, lakes, underground, atmosphere.
Aquatic Biodiversity Ocean 91% of all water Polar ice caps and glaciers 2.3% Lakes, streams, and rivers 2.8% Rest largely groundwater.

Aquatic Biodiversity Ocean 91% of all water Polar ice caps and glaciers 2.3% Lakes, streams, and rivers 2.8% Rest largely groundwater.
Aquatic Ecology (BIOL 435)

Aquatic Ecology (BIOL 435)
BiodiversitySection 2 Objectives Define and give examples of endangered and threatened species. Describe several ways that species are being threatened.

BiodiversitySection 2 Objectives Define and give examples of endangered and threatened species. Describe several ways that species are being threatened.
 Impacts on the Environment.  Crops o Moderate warming and more carbon dioxide in the atmosphere may help plants to grow faster. However, more severe.

 Impacts on the Environment.  Crops o Moderate warming and more carbon dioxide in the atmosphere may help plants to grow faster. However, more severe.
11-4 How Should We Protect and Sustain Wetlands?

11-4 How Should We Protect and Sustain Wetlands?
Identify key features and characteristics of atmospheric, geological, hydrological, and biological systems as they relate to aquatic environments.[AQS.4A]

Identify key features and characteristics of atmospheric, geological, hydrological, and biological systems as they relate to aquatic environments.[AQS.4A]

Similar presentations

Ads by Google