Water Economics at Leibniz Universität Hannover | Flashcards & Summaries

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Lernmaterialien für Water Economics an der Leibniz Universität Hannover

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TESTE DEIN WISSEN

what is the integrated water resources management and at wherefore does it aim?

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IWRM

process which promotes the coordinated development and management of water, land and related resources, in roder to maximize the resultant economic and social welfare without coprimising the sustainability of vital ecosystems


goal: 

balance between the use for increasing population and their livelihood and the protection of the resource water 

provising water for people, food, nature, industries and other uses via enabling environment, institutions roles, management instruments (cross-sectoral integration) 

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TESTE DEIN WISSEN

what are types of water use?

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Non-consumptive use

  • environmental flows
  • transportation
  • recreation

consumptive use = removal of water from the system; water pollution and quality deterioration

  • crop production
  • livestock rearing
  • urban domestic (hygiene)
  • urban industrial (fashion industry, cooling of machinery,..)
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explain what a hedrosphere is

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Hydrosphere: region containing all water in the atmosphere + on the earth's surface in form of solid ice, liquidity or gas


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what is white water?

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  • • Non-productive part of green water 
  • Evaporates directly into the atmosphere (non-productive use) 
  • Includes losses from open water and soil surfaces
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TESTE DEIN WISSEN

What is understood by the term "water can either be extracted or consumed"?

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Extraction: 

  • extracted
  • used
  • recycled or returned to rivers or aquifers
  • reused several times

Consumption: 

  • final use of water after which it cannot be reused


Extractions have increased much faster => indicator on hor much more intensively water can be exploited now

only a fraction of water is lost through evaporation (Verdunstung)

withdrawal is higher larger than consumption

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TESTE DEIN WISSEN

what are global challenges of the earth's water?

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TESTE DEIN WISSEN
  • climate change => loss in biodiversity
  • sustainability (SDGs)
  • water access and sanitation
  • property rights => war
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TESTE DEIN WISSEN

How is the water on the earth distributed?

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TESTE DEIN WISSEN

70% of the earth is covered by water

  • total global water: saltwater: 97,5%, freshwater 2,5% 
  • freshwater: 2/3 is in form of glaciers+permanent snow, 30% is groundwater, rest 1.2%
  •  surface water +mother freshwater: 69% as ground ice+permafrost, 21% lakes, rest in rivers, atmosphere, swamps, marshes, soild moisture 
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TESTE DEIN WISSEN

explain what the hydrological cycle is /

explain where water comes from

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TESTE DEIN WISSEN

Hydrological cycle: 

  1. condensation (formation of clouds)
  2. precipitation (rain, snow, hail)
  3. infiltration (soil moisture, groundwater recharge)
  4. runoff
  5. evaporation + transpiration (Evapo-Transpiration) 
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TESTE DEIN WISSEN

which continent uses/ withdraws the most water?

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TESTE DEIN WISSEN

Asian countries use much more water due to outsourced production to asia, less developed, more population


in general: industiralized countries use more water i´for the industry and only about 10% for the agriculture, while developing countries use over 90% for agriculture

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what is blue water?

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  • Liquid water moving above and below the ground
  • Includes surface water and groundwater 
  • Reuse until it reaches the sea
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what is green water?

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  • Soil moisture from rainfall and infiltrates the soil
  • Available for uptake by plants and evapo-transpiration
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what is grey water?

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  • Usually wastewater 
  • Poor in quality, but usable for some purposes
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  • 255954 Karteikarten
  • 3919 Studierende
  • 167 Lernmaterialien

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Q:

what is the integrated water resources management and at wherefore does it aim?

A:

IWRM

process which promotes the coordinated development and management of water, land and related resources, in roder to maximize the resultant economic and social welfare without coprimising the sustainability of vital ecosystems


goal: 

balance between the use for increasing population and their livelihood and the protection of the resource water 

provising water for people, food, nature, industries and other uses via enabling environment, institutions roles, management instruments (cross-sectoral integration) 

Q:

what are types of water use?

A:

Non-consumptive use

  • environmental flows
  • transportation
  • recreation

consumptive use = removal of water from the system; water pollution and quality deterioration

  • crop production
  • livestock rearing
  • urban domestic (hygiene)
  • urban industrial (fashion industry, cooling of machinery,..)
Q:

explain what a hedrosphere is

A:

Hydrosphere: region containing all water in the atmosphere + on the earth's surface in form of solid ice, liquidity or gas


Q:

what is white water?

A:
  • • Non-productive part of green water 
  • Evaporates directly into the atmosphere (non-productive use) 
  • Includes losses from open water and soil surfaces
Q:

What is understood by the term "water can either be extracted or consumed"?

A:

Extraction: 

  • extracted
  • used
  • recycled or returned to rivers or aquifers
  • reused several times

Consumption: 

  • final use of water after which it cannot be reused


Extractions have increased much faster => indicator on hor much more intensively water can be exploited now

only a fraction of water is lost through evaporation (Verdunstung)

withdrawal is higher larger than consumption

Mehr Karteikarten anzeigen
Q:

what are global challenges of the earth's water?

A:
  • climate change => loss in biodiversity
  • sustainability (SDGs)
  • water access and sanitation
  • property rights => war
Q:

How is the water on the earth distributed?

A:

70% of the earth is covered by water

  • total global water: saltwater: 97,5%, freshwater 2,5% 
  • freshwater: 2/3 is in form of glaciers+permanent snow, 30% is groundwater, rest 1.2%
  •  surface water +mother freshwater: 69% as ground ice+permafrost, 21% lakes, rest in rivers, atmosphere, swamps, marshes, soild moisture 
Q:

explain what the hydrological cycle is /

explain where water comes from

A:

Hydrological cycle: 

  1. condensation (formation of clouds)
  2. precipitation (rain, snow, hail)
  3. infiltration (soil moisture, groundwater recharge)
  4. runoff
  5. evaporation + transpiration (Evapo-Transpiration) 
Q:

which continent uses/ withdraws the most water?

A:

Asian countries use much more water due to outsourced production to asia, less developed, more population


in general: industiralized countries use more water i´for the industry and only about 10% for the agriculture, while developing countries use over 90% for agriculture

Q:

what is blue water?

A:
  • Liquid water moving above and below the ground
  • Includes surface water and groundwater 
  • Reuse until it reaches the sea
Q:

what is green water?

A:
  • Soil moisture from rainfall and infiltrates the soil
  • Available for uptake by plants and evapo-transpiration
Q:

what is grey water?

A:
  • Usually wastewater 
  • Poor in quality, but usable for some purposes
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