lec 9 10 ns5 2010
DESCRIPTION
TRANSCRIPT
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LIVING & NON-LIVING RESOURCES
Lectures 9 and 10
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LECTURE OUTLINE
LIVING RESOURCESBiomes
NON-LIVING RESOURCESAirWaterLandMinerals
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BIOMES
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BIOMES
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HUMAN POPULATION AND THE FISH BASE
ARE YOU A
THREAT?
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THE DEMANDS OF HUMANS
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LIVING RESOURCES..LIFE
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EXPLOITING LIVING RESOURCES
FISH KILLS FLOODS
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TIME TO ACT NOW...
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WATER AS A RESOURCE
USES OF WATER
CLASSIFICATION OF WATER
THREATS TO THE RESOURCE
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USES OF WATER
AGRICULTURE
INDUSTRY
RESIDENTIAL
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CLASSIFICATION OF FRESHWATER
CLASS AA
PUBLIC WATER SUPPLY; REQUIRES APPROVED DISINFECTION ONLY
CLASS A
COMPLETE TREATMENT REQUIRED (COAGULATION, SEDIMENTATION, FILTRATION, DISINFECTION)
CLASS B
PRIMARY CONTACT RECREATION (BATHING, SWIMMING)
CLASS C
PROPAGATION OF FISH; BOATING; MANUFACTURING WATER AFTER TREATMENT
CLASS D
IRRIGATION
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CLASSIFICATION OF MARINE WATER
CLASS SA
PROPAGATION, SURVIVAL AND HARVEST OF SHELL FISH (COMMERCIAL PURPOSES)
CLASS SB
RECREATIONAL WATER (BATHING, SWIMMING, SKINDIVING); FISHERIES (BANGUS)
CLASS SC
RECREATIONAL WATER (BOATING ETC.); SUSTENANCE FISHING; MANGROVE AS WILDLIFE SANCTUARIES
CLASS SD
INDUSTRIAL WATER SUPPLY (COOLING)
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THREATS
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HOW CAN YOU HELP?
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LAND AS A RESOURCE
LAND AS AN ECOSYSTEM
FOOD BASE
CRUCIAL LIFE-SUPPORT SYSTEM
CULTIVATION OF LAND DEVELOPED TO MEET FOOD NEEDS
PROVIDE RAW MATERIALS
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THE SAD TRUTH...
14.2 M HECTARES SUITABLE FOR CROP CULTIVATION
4% OF TOTAL RP LAND AREA
5.2M HECTARES SEVERELY ERODED
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WOODLANDS VERSUS GRASSLANDS
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THE SERIOUS EFFECTS OF EROSION
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LAND CONVERSION = LAND DEGRADATION
INCREASED SOIL DEGRADATION BROUGHT ABOUT BY:
EROSION
ACIDIFICATION (DUE TO CONTINUED USE OF AMMONIUM FERTILIZERS)
NUTRIENT LOSS (DUE TO PESTICIDE USE)
DETERIORATION OF DRAINAGE CONDITIONS
TODAY THE CHALLENGE: “ Development of Sustainable Agricultural Farming System to Support Growing Population”
LAND USE % CHANGE
AGRICULTURE 2.5
GRASSLAND 2.4
FOREST/WOODLANDS 16.9
OTHERS 19.5
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HOW CAN YOU HELP?
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AIR AS A RESOURCE
CONCERNS:
Global WarmingDepleting Ozone Layer
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GLOBAL WARMING
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WHAT OR WHO IS TO BLAME?
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GREENHOUSE GASES: THE GOOD AND THE UGLY TRUTH!
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GREENHOUSE EFFECT AND CLIMATE CHANGE
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EVIDENCES ARE COUNTING...
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ROOM FOR RESEARCH
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PROPOSED SOLUTIONS
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THE THINNING OZONE LAYER
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IS IT REALLY A HOLE?
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FORMATION OF OZONE LAYER
OH SO SLOW...
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BUT TO DESTROY IT...
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HOW CAN WE HELP?
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NEXT MEETING: ENVIRONMENTAL ETHICS AND
ENVIRONMENTAL LAWS