Agroecology & Climate Change
1. Climate
2. Water
3. Soil
4. Human Resources
5. Impact of Climate Change
6. Inpact of Pollution
Different Climate in The World
i. Tropics
ii. Temperate
iii.Tundra
iv. Desert
i. Tropics
- High temperature
- lot of rainfall
- many agricultural activities
- crops : rubber, oil palm
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| tropics
ii. Temperate
- 4 season
- neither too warm nor too cold
- neither too wet nor too cold
- crops planted in spring, harvested in summer ( maize & wheat )
iii. Tundra ( treeless land )
- low temperature
- long, cold, dark winter ( 6-10 months )
- little water & sunshine
- dominant vegetation ( grasses, mosses & lichens )
- 3 type :artic (north pole), antartic (south pole), alphine
 artic( north pole )  antartic( south pole )  alphine
iv. Desert
- very little precipitation, < than 250 mm annually
- vegetation very sparse
- temperature very hight in the day & very low at night
- agriculture only possible with sufficient irrigation
2. Water
- agriculture act : rain-feed / irrigation
- Southern Peninsular Malaysia :
*suitable for oil palm cultivation
- Kedah - Perlis
*< 2000 mm- rubber & manggoes
- Perak - Selangor : Paddy
3. Soil
- soil health - foundation of productive farming practices
- provide essential nutrient to plant
- important characteristic :
*structure & aggregation
*allow water & air to infiltrate
* provide nutrients
* biota to thrive
4. Human Resources
 i. agricultural scientist  ii. teaching instiution of agriculture  iii. supporting specialist  iv. skilled operators
5. Impact of Climatic Change
i.Global Warming
ii. Desertification
6. Impact of Pollution
i. acid rain
ii. heavy metal
- area of intensive industry
- zinc, copper & lead
- easily transported & available to plants & animal
- polute the soil & render the crops toxic
iii. chemical pesticide
- affect biodiversity & consumer health
iv. exessive chemical fertilizer
- high level of nitrate & cause eutrophication
*the process of eutrophication
* eutrophication
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