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

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

2. Section Outline Section 6-2 • 6–2 Renewable and Nonrenewable Resources A. Classifying Resources B. Sustainable Development C. Land Resources D. Forest Resources E. Fishery Resources 1. Overfishing 2. Sustainable Development 3. Aquaculture F. Air Resources G. Freshwater Resources

3. RENEWABLE RESOURCES regenerate can ______________ if they are alive OR can be replenished by __________________________ if they are non-living biogeochemical cycles http://www.inclusive.co.uk/downloads/images/pics2/tree.gif http://www.navitron.org.uk/wind/600kw.JPG

4. RENEWABLE RESOURCES “Renewable” depends on context Ex: An _________tree can be re-grown, but a __________ of trees in an ecosystem may NOT be replaceable individual population http://image.guardian.co.uk/sys-images/Guardian/Pix/gallery/2002/08/30/deforestedland.jpg

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 Old growth habitat http://en.wikipedia.org/wiki/Old_growth_forest

6. NONRENEWABLE RESOURCES unlimited Renewable does NOT mean __________________ Ex: ______________ is a renewable resource but can become limited by drought or overuse Fresh water http://earth.ooups.com/uk/images/100/tapwater.jpghttp://www.wrightwoodcalif.com/watershort/ConserveWater.JPG

7. NONRENEWABLE RESOURCES NOT BE replenished can ___________________________ by natural processes http://www.greenpeace.org/raw/image_full/international/photosvideos/photos/illegal-deforestation-and-land.jpg http://www.npr.org/news/images/2005/aug/16/pumping_gas200.jpg

8. THE BIG QUESTION ? land, forests, fisheries, air, and fresh water HUMAN ACTIVITIES ___________________ can affect the quality and supply of renewable resources such as _______________________________ _______________________________ How can we provide for our needs while maintaining ecosystem goods and services that are renewable?

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

10. http://www.newtonswindow.com/problem-solving.htm REMEMBER RESOURCE A __________________ is anything an organism needs for life NATURAL RESOURCES = LAND AIR WATER FORESTS http://coweeta.ecology.uga.edu/coweeta_photographs/erosion.htm http://www.lenntech.com/images/discharge.gif

11. LAND RESOURCES space Provide _________ for human communities Provide _____________ for industry http://www.fotogalerie-naturpur.de/pic/land1.html raw materials http://lloydsfunds.com/mining_12.jpg

12. SOIL LAND RESOURCES 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. renewable TOPSOIL humus

13. LAND RESOURCES Wearing away of topsoil = ____________ is caused by plowing land and removing plant roots Soil erosion http://coweeta.ecology.uga.edu/coweeta_photographs/erosion.htm

14. Desertification LAND RESOURCES ___________________ = changing of fertile land in dry climates into desert areas caused by farming, overgrazing, and drought http://www.the-human-race.com/images/environment/drought.jpg

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 oats alfalfa corn 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 wood Provide _________ for products ranging from homes to paper Wood provides _________ in many countries http://www.nature.org/images/sotw_logging.jpg fuel http://www.forestlearn.org/graphics/wood_fuel.jpg

17. FOREST RESOURCES Forests have been called the “lungs of the Earth” because they remove ________________ and produce ______________ carbon dioxide oxygen http://www.ecoworld.com/air/Images/Photosynthesis.jpg

18. http://www.gdccc.org/Records/EOY2004/NS%20Salon%20HM%20Brittain%20Roger%20Owl%20in%20Hole%20No%202.jpghttp://www.gdccc.org/Records/EOY2004/NS%20Salon%20HM%20Brittain%20Roger%20Owl%20in%20Hole%20No%202.jpg FOREST RESOURCES store nutrients Forests also: ________________ ________________ ________________ ________________ ________________ provide habitats moderate climate prevent soil erosion protect fresh water

19. “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. OLD GROWTH http://image.guardian.co.uk/sys-images/Guardian/Pix/gallery/2002/08/30/deforestedland.jpg

20. deforestation FOREST RESOURCES Loss of forests = ____________ can result in erosion and loss of nutrients preventing regrowth http://www.greenpeace.org/raw/image_full/international/photosvideos/photos/illegal-deforestation-and-land.jpg

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

22. AIR RESOURCES Pollutant ______________ = 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 smog http://www.cyberolimpiadas.com.sv/proyectos2004/gamma/proyecto3/smog.jpg

23. AIR RESOURCES fossil fuels Burning __________ releases pollutants that cause smog and other problems in atmosphere. Toxic chemicals like nitrates, sulfates, and particulates can cause ________________ like ___________ breathing problems asthma http://www.cyberolimpiadas.com.sv/proyectos2004/gamma/proyecto3/smog.jpg

24. SUSTAINABLE DEVELOPMENT • Smokestack “Scrubbers” control emissions • Auto emission standards • Clean air regulations • Reduce use of fossil fuels http://www.alexvisani.com/darkgallery/smog.jpg

25. FRESH WATER RESOURCES Americans use BILLIONS of gallons of freshwater daily for ________, ________ and ___________________ drinking washing watering crops http://www.thesolutionsite.com/lesson/4601/freshwater.jpg

26. FRESH WATER RESOURCES renewable Although water is a ______________ resource, the total supply of fresh water is __________. limited http://www.mos.org/oceans/graphics/planet/watercycle.jpg

27. FRESH WATER RESOURCES remove pollutants purify Wetlands _____________________ and ________ water passing through. http://www.epa.gov/bioiweb1/aquatic/importance.html

28. SUSTAINABLE DEVELOPMENT • Water conservation • Protect wetlands and forests • Water treatment plants • Clean water regulations hhttp://www.romanviii.co.uk/bp/nhpage.asp?pcat=about_us

29. WAYS TO CONSERVE WATER http://www.watersavingtips.org/images/saving_1.jpg

30. SOURCES http://www.animation-station.com/smileys/index.php?page=17 http://mff.dsisd.net/Environment/Cycles.htm http://www.romanviii.co.uk/bp/nhpage.asp?pcat=about_us

31. SOURCES http://www.oldetimecooking.com/Images/Fruits/Apple.jpg http://vilenski.org/science/safari/classifyall/eukaryotic.html http://dustconnection.com/images/stories/cleaning_bucket_sm.jpg

32. POWER POINT BY K. RIEDELL • ADAPTED TO MISSISSIPPI STATE SCIENCE FRAMEWORK