lec 9 10 ns5 2010
DESCRIPTION
TRANSCRIPT
LIVING & NON-LIVING RESOURCES
Lectures 9 and 10
LECTURE OUTLINE
LIVING RESOURCESBiomes
NON-LIVING RESOURCESAirWaterLandMinerals
BIOMES
BIOMES
HUMAN POPULATION AND THE FISH BASE
ARE YOU A
THREAT?
THE DEMANDS OF HUMANS
LIVING RESOURCES..LIFE
EXPLOITING LIVING RESOURCES
FISH KILLS FLOODS
TIME TO ACT NOW...
WATER AS A RESOURCE
USES OF WATER
CLASSIFICATION OF WATER
THREATS TO THE RESOURCE
USES OF WATER
AGRICULTURE
INDUSTRY
RESIDENTIAL
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
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)
THREATS
HOW CAN YOU HELP?
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
THE SAD TRUTH...
14.2 M HECTARES SUITABLE FOR CROP CULTIVATION
4% OF TOTAL RP LAND AREA
5.2M HECTARES SEVERELY ERODED
WOODLANDS VERSUS GRASSLANDS
THE SERIOUS EFFECTS OF EROSION
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
HOW CAN YOU HELP?
AIR AS A RESOURCE
CONCERNS:
Global WarmingDepleting Ozone Layer
GLOBAL WARMING
WHAT OR WHO IS TO BLAME?
GREENHOUSE GASES: THE GOOD AND THE UGLY TRUTH!
GREENHOUSE EFFECT AND CLIMATE CHANGE
EVIDENCES ARE COUNTING...
ROOM FOR RESEARCH
PROPOSED SOLUTIONS
THE THINNING OZONE LAYER
IS IT REALLY A HOLE?
FORMATION OF OZONE LAYER
OH SO SLOW...
BUT TO DESTROY IT...
HOW CAN WE HELP?
NEXT MEETING: ENVIRONMENTAL ETHICS AND
ENVIRONMENTAL LAWS