Title: USING THE EARTHS RESOURCES
1USING THE EARTHS RESOURCES
- AGRISCIENCE AND TECHNOLOGY
Modified by Georgia Agricultural Education
Curriculum Office
July, 2002
2OBJECTIVES
- DEFINE ENVIRONMENT AND NATURAL RESOURCES
- EXPLAIN ECOSYSTEMS
- EXPLAIN AND GIVE EXAMPLES OF RENEWABLE NATURAL
RESOURCES - EXPLAIN AND GIVE EXAMPLES OF NON-RENEWABLE
NATURAL RESOURCES
3OBJECTIVES CONT.
- EXPLAIN POLLUTION AND IDENTIFY SOURCES OF
POLLUTION. - DEFINE RECYCLING AND LIST EXAMPLES.
- IDENTIFY SOURCES OF POLLUTION IN AGRICULTURE AND
NAME RULES TO FOLLOW IN PREVENTING AGRICULTURE
POLLUTION.
4FACTS TO THINK ABOUT
- ONE IN THREE PEOPLE IN THE WORLD DONT HAVE
ENOUGH FOOD TO EAT. - 12 MILLION PEOPLE DIE OF STARVATION EACH YEAR.
- BY THE YEAR 2030 THE WORLDS POPULATION WILL
DOUBLE AT 10 BILLION PEOPLE.
5DEFINITION OF ENVIRONMENT
- ENVIRONMENT IS ALL OF THE FACTORS THAT EFFECT THE
LIFE OF A LIVING THING - IT IS EVERYTHING EXTERNAL TO A PLANT OR ANIMAL.
6NATURAL RESOURCES
- NATURAL RESOURCES ARE THE NATURALLY OCCURING
THINGS THAT SUPPORT LIFE, PROVIDE FUEL OR ARE
USED IN OTHER WAYS BY HUMANS. - SOIL, WATER, AIR, MINERALS, PLANTS, AND ANIMALS
ARE EXAMPLES.
7BIOSPHERE
- BIOSPHERE IS THE AREA OF THE EARTH THAT SUPPORTS
LIFE - EXTENDS ONLY A FEW FEET ABOVE THE EARTH AND INTO
THE OCEANS, DEPENDING ON THE KIND OF LIFE.
8HABITAT
- HABITAT IS A PLACE A PLANT OR ANIMAL LIVES UNDER
NATURAL CONDITIONS. - EXAMPLE ZOOS MAY HAVE TO CREATE A HABITAT FOR
A SPECIFIC ANIMAL.
9ECOSYSTEM
- ECOSYSTEM IS ALL OF THE PARTS OF A PARTICULAR
ENVIRONMENT - SOME PARTS ARE LIVING (BIOTIC FACTORS)
- SOME PARTS ARE NONLIVING (ABIOTIC FACTORS)
10EXAMPLES OF BIOTIC FACTORS
- PLANTS
- ANIMALS
- OTHER LIVING THINGS
- SOME HAVE A SYMBIOSIS RELATIONSHIP WITH EACH
OTHER - SOME DO NOT RELATE WELL WITH EACH OTHER ( WOLVES
AND SHEEP)
11EXAMPLES OF ABIOTIC FACTORS
- WATER
- TEMPERATURE
- SUNLIGHT
- SOIL CHARACTERISTICS
- LAY OF THE LAND
- THEY DETERMINE WHICH PLANTS AND ANIMALS CAN LIVE
IN AN ECOSYSTEM
12IDEAL ECOSYSTEM WITHIN A STREAM PASSING THROUGH A
MEADOW
- WATER FREE OF POLLUTION
- FISH AND OTHER LIFE IN THE WATER
- FERTILE SOIL SURROUNDING THE STREAM
- PLANTS GROWING ON THE SURROUNDING LAND
- INSECTS IN THE PLANTS
- BIRDS IN THE AIR ABOVE
13EXAMPLE OF A NICHE
- NICHE IS A WAY A PLANT AND ANIMAL HAS ITS OWN
SPECIAL WAY OF LIVING - A BEAVER IS AN EXAMPLE
- A VENUS FLY TRAP IS A PLANT EXAMPLE
14FOOD CHAIN
- FOOD CHAIN IS THE SEQUENCE IN WHICH ALL LIVING
THINGS IN AN ECOSYSTEM GET THEIR FOOD - ALSO MAY BE REFERRED TO AS THE CYCLE OF NATURE
15SUSTAINABLE AGRICULTURE
- IS USED TO DESCRIBE ALL OF THE THINGS DONE IN
AGRISCIENCE TO MAINTAIN THE ABILITY TO PRODUCE
FOOD, FIBER AND SHELTER
16SUSTAINABLE AGRICULTURE INVOLVES
- PROTECTING THE SOIL, AIR, AND WATER
- MAINTAINING WILDLIFE HABITAT
- USING PESTICIDES AND FERTILIZERS WISELY
- DISPOSING OF WASTES PROPERLY
17NATURAL RESOURCES
- RENEWABLE
- SOIL
- WATER
- WILDLIFE/ FISH
- FOREST
- AIR
- NON-RENEWABLE
- COAL
- PETROLEUM
- NATURAL GAS
- MINERALS
18WAYS TO RENEW SOIL
- USE SOIL CONSERVATION MEASURES TO KEEP THE SOIL
IN PLACE - SOIL TEST AND MAINTAIN SOIL FERTILITY
19WAYS TO RENEW/CONSERVE WATER
- DONT WASTE WATER
- FARM PONDS
- TERRACES
- CROP RESIDUE
- TREAT WASTE WATER AND RE-USE
20WAYS OF RENEWING WILDLIFE/FISH
- RESTOCKING OF FISH
- EXTEND OR LIMIT TIME OF HUNTING SEASON
- RELOCATION OF CERTAIN SPECIES OF ANIMALS
21WAYS TO RENEW FOREST
- REPLACE TREES BY PLANTING CLEARCUT AREA
- HARVEST TREES BY A DIAMETER LIMIT (18 DBH)
- COMMERCIAL FOREST OWNED BY GEORGIA-PACIFIC AND
WEYERHAUSER MANAGE LARGE TRACTS OF LAND FOR
TIMBER.
22INCREASING AIR QUALITY
- REDUCE EMISSIONS (WASTES INTO THE AIR) COMING
FROM FACTORIES AND CARS, AND EQUIPMENT - DO NOT TRY TO BURN BATTERIES (CAINTAINS
CADMIUM-HEAVY METAL) - CONTROLLING SMOKE
23ENVIRONMENTAL POLLUTION
- ALL THE WAYS THAT PEOPLE CONTAMINATE THEIR
ENVIRONMENT - HUMANS CAUSE MOST POLLUTION
- SOURCES INCLUDE TOXIC PRODUCTS, SOIL LOSS, WASTE
PRODUCTS, DISCHARGED WATER, JUNK AND LITTER
24TOXICOLOGY
- STUDY OF THE EFFECTS OF POISONS ON LIVING THINGS
- EFFECTS OF TOXINS ARE ACUTE (SHORT-TERM EXPOSURE)
AND CHRONIC (LONG-TERM EXPOSURE)
25MAJOR SOURCES OF TOXINS
- EXHAUST FROM ENGINES
- BURNING MATERIALS
- AGRICULTURAL CHEMICALS
26SOIL LOSS
- WIND EROSION
- WATER EROSION
- SOIL PARTICLES GET INTO THE AIR, STREAMS, LAKES
AND CAUSE POLLUTION
27WASTES PRODUCTS
- GARBAGE FROM HOMES/RESTAURANTS
- LEFT-OVER MATERIALS AT FACTORIES
- CROP REMAINS AND LIVESTOCK WASTES ON FARMS
- 1300 LBS. OF WASTE/PERSON/YEAR
28DISCHARGED WATER
- EFFLUENTS - DISCHARGED WATER AFTER IT HAS BEEN
USED IN A FACTORY OR PROCESS OF SOME TYPE. - SUBSTANCES- WASTE BLOOD FROM MEAT PROCESSING
PLANT - TEMPERATURE- POWER PLANT RELEASING WATER INTO
STREAMS
29EFFLUENTS CAUSING POLLUTION
- AMOUNT - RELEASING TOO MUCH WATER INTO STREAMS
OTHER METHODS OF DISPOSAL MAY BE NEEDED - HUMAN WASTES - SOME SMALL TOWNS OR OLDER
RESIDENTS MAY NOT HAVE SEWAGE TREATMENT PLANTS OR
SEPTIC SYSTEMS
30METHODS OF WASTE DISPOSAL
- LANDFILLS 80 OF THE WASTE IN US IS DISPOSED
IN LANDFILLS - INCINERATION 9 OF THE WASTE ARE INCINERATED
- RECYCYLING COMMON ITEMS INCLUDE PAPER,
ALUMINUM,TIN CANS AND GLASS.
31SOURCES OF AGRICULTURAL POLLUTION
- INTRODUCING PESTS BROUGHT INTO U.S. ON SEED,
PLANTS, FRUIT OR OTHER PRODUCTS - EXOTIC PLANTS OR ANIMALS RELEASE OF PLANTS OR
ANIMALS MAY DAMAGE EXISTING PLANTS/ANIMALS - CHEMICALS IMPROPER USE OF AGRICULTURAL CHEMICALS
32SOURCES OF AG POLLUTION
- WASTE WATER EXCESS WATER FROM IRRIGATION, FISH
PONDS, FOOD PROCESSING PLANTS. - PROCESSING WASTES CHICKEN FEATHERS, INTERNAL
PARTS OF ANIMALS, VEGETABLES, SAWDUST, AND TREE
BARK. - NEW LIFE FORMS NON-NATURAL FORMS OF
PLANTS/ANIMALS
33STEPS TO PREVENT POLLUTION
- KNOW REGULATIONS
- FOLLOW RULES
- USE PROPER STORAGE
- WASTE CONTROL
- USE CHEMICALS PROPERLY
- DISPOSE OF CONTAINERS PROPERLY
- USE SAFETY