1. HUMAN IMPACT on the BIOSPHERE Chapter 6-2 Renewable and Non-renewable Resources

2. ________________ RESOURCES can ____________ if they are alive OR
be replaced by biogeochemical ________
if they are non-living

3. RENEWABLE RESOURCES “Renewable” depends on context
Ex: An _________tree
can be re-grown, but a
__________ of trees in
an ecosystem may
NOT be replaceable

4. “Renewable” depends on context
Many forests in USA
have been logged at
least once and have
grown back naturally.
_______________
forests have never
been cut. It takes centuries to replace
these and species may be lost.

5. RENEWABLE RESOURCES “Renewable” depends on context Ex:
“_____________” forests
provide a unique
_______ and are
home to many
species that don’t
live in other
types of forests

6. NONRENEWABLE RESOURCES
Renewable does NOT mean __________________
Ex: ______________ is a renewable resource but can become limited by
_______ OR ________

7. NONRENEWABLE RESOURCES
can ___________________________ by natural processes

8. land, forests, fisheries, air, and fresh water
THE BIG QUESTION ?
Human activities can affect the
_____________________of renewable
resources such as:
How can we provide for our needs while maintaining ecosystem goods and services that are renewable?
land, forests, fisheries, air, and fresh water

9. One ANSWER to ? = ____________________________
It’s a way of _________ natural
resources __________________ them
and providing for human needs
WITHOUT causing long term __________________

10. REMEMBER NATURAL RESOURCES = _______ _____ ________ __________
REMEMBER
A __________________
is anything an organism
needs for life
NATURAL RESOURCES =
_______
_____
________
__________

11. LAND RESOURCES Provide _________ for human communities
for industry

12. Land resources include __________ which is a ______________ resource
if managed properly.
____________is made of sand, clay, rock, and _________(decayed organisms) and is
produced and maintained by interactions between soil and plants growing in it.

13. LAND RESOURCES
Wearing away of topsoil = ____________ is caused by plowing land and removing plant roots

14. LAND RESOURCES
In many places humans are changing fertile land in dry climates into desert areas due to farming, overgrazing, and drought

15. Sustainable Agriculture
Section 6-4
Controlled Grazing
By managing graze periods and herd
densities, farmers can improve nutrient
cycling, increase the effectiveness of
precipitation, and increase the carrying
capacity of pastures.
Cover Crops
Legumes, grasses, and other
cover crops recycle soil nutrients,
reduce fertilizer need, and
prevent weed growth.
Biological Pest Control
The use of predators and parasites
to control destructive insects
minimizes pesticide use as well as
crop damage A B C
Yr. 1
corn
oats
alfalfa
Contour Plowing
Contour plowing reduces
soil erosion from land runoff.
On hilly areas, plowing is done
across the hill rather than
straight up and down.
Yr. 2
Crop Rotation
Different crops use and
replenish different nutrients.
By rotating crops, the loss
of important plant nutrients
is decreased.
alfalfa (plowed in)
corn
alfalfa
Yr. 3
oats
alfalfa
corn

16. FOREST RESOURCES Provide _________ for products ranging from
homes to paper
Wood provides
_________
in many countries

17. FOREST RESOURCES Forests have been called the “lungs of the Earth”
because they
remove
________________
and produce
______________

18. FOREST RESOURCES Forests also: Store ___________ Provide_________
FOREST RESOURCES
Forests also:
Store ___________
Provide_________
Moderate ________
_______soil erosion
Protect fresh ______

19. Loss of forests = ____________
FOREST RESOURCES
Loss of forests = ____________
can result in erosion and loss of nutrients preventing regrowth

20. HOW DO WE HELP?
Sustainable development:
selective harvest of mature trees
replanting of logged areas
tree farms
breeding new, faster growing species

21. AIR RESOURCES
______________ = harmful material that can enter the biosphere through land, air, or water
_________ = Mixture of chemicals that appear as a gray-brown haze in the atmosphere

22. AIR RESOURCES Burning __________ releases pollutants
that cause smog and other problems
in atmosphere.
Toxic chemicals
like nitrates, sulfates, and particulates can cause __________problems
like ___________

23. SUSTAINABLE DEVELOPMENT
Smokestack “Scrubbers” control emissions
Auto emission standards
Clean air regulations
Reduce use of fossil fuels

24. FRESH WATER RESOURCES Americans use BILLIONS of gallons of
freshwater daily for ________, ________
and ___________________

25. FRESH WATER RESOURCES
Although water is a ______________ resource, the total supply of fresh water is __________.

26. FRESH WATER RESOURCES Wetlands remove______________ and
________ water passing through.

27. SUSTAINABLE DEVELOPMENT
Water conservation
Protect wetlands
and forests
Water treatment plants
Clean water regulations
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28. DON’T FORGET THE WATER WE CAN’T SEE!
The PRODUCTION OF:
1 kg wheat costs 1,300 L water
kg rice costs 3,400 L water
1 kg eggs costs 3,300 L water
1 kg beef costs 15,000 L water
1 cotton shirt costs 2,500 L water
1000 g of blue jeans costs 10,850 liters water
1 ton passenger car costs 400,000 liters of water
Building a house uses about 6 million liters of water

29. WAYS TO CONSERVE WATER