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Ecology in Times of Scarcity

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Bianca Prentu

on 18 April 2016

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Transcript of Ecology in Times of Scarcity

Efficiency vs Efficacy
4
high productions but intensive energy use
Actual Model
Efficiency
Efficacy - Actual Model
multifuncional agriculture
especially in high productive lands
New model
Focused on the results
Focused in sostenibility
GENERIC PROBLEMS
General problems
Political power is not necessarily concentrated in areas of high ecosystem services.
The evolution of human social organization and energy use.
Global climate change.
Human impact on the biosphere.
Political power is not necessarily concentrated in areas of high ecosystem services
More time and money should be invested in these kind of problems.
Solutions
Humans are the primary source of environmental problems, but could be the primary source of solutions too.

Ecology in Times of Scarcity
Andrea Arnau Traver
Bianca Ioana Prentu
Jose Manuel Marco López
Daniel Santillana Fernandez

Humans integrated into natural ecosystems
2
Ecologists should not attempt to create landscapes with a high level of maintenance.
Understanding and explain the functioning of natural ecosystem
More importance
Lifestyle
Not enough
In an energy-scarce future, ecosystem service will become more important in supporting the human economy.
ECOLOGY
SUSTAINABLE MANAGEMENT
ECOSYSTEMS
With the industrial revolution there was an increase in the use of fossil-fuel.
After the industrial revolution occurred a dramatic change in the biosphere and ecosystems of the planet and this change accelerated rapidly in the 20th century.
THE IMPACTS ARE GLOBAL
The society is approaching a
TRANSITION
in the 20th century
The consumption and growth cannot be sustained
Energy scarcity
Climate change
Human impacts on the biosphere
The world's conventional oil production has already peaked, and that total oil production will consistently exceed supply and that energy costs will increases significantly.
Oil shales
Tar sand
Biofuels
Ethanol fuel
Biosphere
Humans dominate approximately two thirds of land area of Earth.
For the first time in history, humans began affecting global cycles of material and energy and biodiversity.
Climate change
Affect many of the world's ecosystems.
Amount, distribution and seasonality o rainfall
Sea level rise
Temperature
Intensity and frequency of strong storms
It's a serious problem !!!
Rich, productive ecosystems with high provision of ecosystem services will be relatively more important in supporting the human economy as fossil fuels become scarcer.
Reefs
Coastal area with estuaries
Deltas and intertidal wetland
Floodplains
Productive forest
Rain-fed grasslands
Political power is not necessarily concentrated in areas of high ecosystem services.
The evolution on human social organization and energy use.
Global climate change.
Human impact on the biosphere.
SINGULAR PROBLEMS IN MISSISSIPPI RIVER BASIN
DECREASE OF SEDIMENT INPUT CAUSED BY DAMS ON THE MISSOURI
CHANGE ON THE MAINSTREAM CHANNEL OF THE MISSOURI RIVER
EXTENSIVE AGRICULTURE
DRAINAGE OF WETLANDS
LOSS OF HABITATS
USE OF TOO MUCH FERTILIZES
The political power should protect these area.
The conversion of natural landscapes to other uses and the degradation of nature landscapes have caused the loss of ecosystem productivity and the services that can offer us.
The Mississippi-Ohio-Missouri river basin
It is a continental scale system with high ecosystem values that has been severely impacted by human activities, and will require sustainable management in a time of resource scarcity.
3.2 million-square-kilometer
Discharge of nearly 20,000 cubic meter per second to the Golf on Mexico
More than 80% of the wetlands in most mid western states have been drained up to now.
The evolution of human social organization and energy use
Societies should grow in a more sustainable way.
Global climate change
People in general will have to change their lifestyle.
Human impact on the biosphere
Not only natural landscapes and plants but also plenty of animal species will never exist again. They are gone.
Singular MOM river basin problems
Decrease of sediment input caused by dams on the Missouri.
Change of the mainstream channel of the Missouri river.
Extensive agriculture.
Drainage of wetlands.
Use of too much fertilizers.
without intensive use of energy
Decrease of sediment input caused by dams on the Missouri
Natural Resource Management
1
Is necessary developing planes to correct these problems.
Change of the mainstream channel of the Missouri river
Low energy use
We have to pay attention to dams which are changing the natural channel of river.
Innovative projects that do not use rich soil for houses
Extensive agriculture
We will have to return to plant various kind of crops.
Houses connected with nature
Drainage of wetlands
We have to develop new planes for protecting this animals.
3
Loss of habitats
Sustainable use of ecosystems
Ecosystems contribute to human welfare
We must restore and save most important habitats.
Use of too much fertilizers
We must to protect high quality soils and not to make extensive agriculture.
Types and Quantity of resources we can use without damaging ecosystem
Sealed in most productive ecosystem e.g. Mississippi Basin
How many?
Concept: Ecotechnology
5
Ecologic engineering, incluiding agroecology
“Sustainability is now a big baggy sack in which people throw all kinds of old ideas, hot air and dodgy activities in order to be able to green wash their products and feel good.”
― Kevin McCloud
the end
Ecology new paradigm
DESCRIPTIVE
PROSPECTIVE

Conclusion
the future of our career
scarcity as opportunity
Full transcript