lec 9 10 ns5 2010

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