FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Chapter 6 Humans in the Biosphere Section 6-2 Renewable & NonRenewable Resources

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Tragedy of the Commons Any Resource That Is Open To Everyone Will Eventually Be Destroyed, Because:Any Resource That Is Open To Everyone Will Eventually Be Destroyed, Because: –Everyone Will Use The Resource But: –No One Is Responsible For Conserving It!

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT English Commons

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Tragedy of the Commons Key Concept: Regardless of whether they are held in common, environmental resources can be classified into two types: 1.Renewable 2.NonRenewable.

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Renewable Resource Any resource that can be regenerated and are therefore replaceable.Any resource that can be regenerated and are therefore replaceable. –Trees –Water –Air –Oceans

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT NonRenewable Resource A resource that can not be replenished by natural processes.A resource that can not be replenished by natural processes. –Oil –Coal –Natural Gas

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Sustainable Use Using natural resources in a way that does NOT deplete them.Using natural resources in a way that does NOT deplete them. Key Concept: Human activities affect the supply and quality of renewable resources.

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Land Resources Fertile Soil is a combination of:Fertile Soil is a combination of: –Humus, sand, clay TopsoilTopsoil –Absorbs & Retains Moisture –Allows Drainage –Rich In Nutrients –Low In Salts

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Soil Erosion The wearing away of surface soil by water and wind when surface protection is removed.The wearing away of surface soil by water and wind when surface protection is removed.

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Soil Erosion

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Desertification The transformation of fertile soil into desertsThe transformation of fertile soil into deserts Strategies to control:Strategies to control: –Contour Plowing –Leaving Previous Years Stubble In Place

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Desertification

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Contour Plowing

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Corn Stubble Left In Place

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Forest Resources Can be a renewable resource if managed carefully.Can be a renewable resource if managed carefully. –New Growth Forests are less diverse than Old Growth Forests DeforestationDeforestation –Damage can be permanent –Laterite

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Deforestation

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Laterite

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Ocean Resources Major source of proteinMajor source of protein Over fishing causes collapse of fisheriesOver fishing causes collapse of fisheries Controlled byControlled by –Take limits –Fishing seasons –Closing Fisheries

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Cod Fishing Banned

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT West Coast Fisheries Closing

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Aquaculture Replacing Wild FisheriesReplacing Wild Fisheries Can Be Established AnywhereCan Be Established Anywhere –Growing Industry in Midwest

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Aquaculture

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Open Ocean Aquaculture

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Air Resources Common Resource (everyone uses, nobody owns)Common Resource (everyone uses, nobody owns) Smog, Acid RainSmog, Acid Rain

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Smog

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Acid Rain

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Water Resources Fresh Water Running OutFresh Water Running Out