A project describing the effect of global warming on crop production

1. AHSAN SALEEM
M.Sc.(HONs)Agronomy
Department Of Agronomy
University Collage Of Agriculture
and Environmental Sciences
Global Warming and Impact on crop
Production

3. Global Warming Impacts
1. Rising Seas
2. Changes in rainfall patterns
3. Increased likelihood of extreme events--- such as
flooding, hurricanes, etc.
4. Melting of the ice caps
5. Melting glaciers
6. Widespread vanishing of animal populations
7. Spread of disease
8. Bleaching of Coral Reefs due to warming seas and
acidification due to carbonic acid formation
9. Loss of Plankton due to warming seas

4. Causes of Global Warming
Green House Gases
Deforestation
Mining
Burning Of Fossil Fuel
Increase in Auto Mobile
Agriculture
Industrial Processes

5. Greenhouse Effect
The greenhouse effect is when the temperature goes
up, on Earth, since the sun’s heat and light energy is
trapped in the earth’s atmosphere.
While the heat from the sun enters our atmosphere,
the heat has trouble leaving back out our
atmosphere

8. Effect On Crop Production
Effect Through
 Due to Rainfall Pattern change
 Rising atmospheric concentration of co2
 Average Temperature Increase
 Relative Humidity
 Pest and Pathogens
 Formation of tropospheric ozone

10. Carbon dioxide Concentration
Enhance crop growth
Yield of crop
Quality of Grain

11. Temperature
 Increase Temp effect
Photosynthesis,respiration,transpiration,Seed
dormancy etc
 Optimum Temp 0-50C
 Enzyme Reaction Double with every 10% increase in
temp
 Too High temp denaturation of enzyme and other
protein
 Increase drought conditions

14. Relative Humidity
 When relative humidity levels are too high
or there is a lack of air circulation, a plant
cannot make water evaporate (part of the
transpiration process) or draw nutrients from
the soil. When this occurs for a prolonged
period, a plant eventually rots.

15. Tropospheric ozone
Tropospheric ozone is formed by the interaction of
sunlight, Particularly ultraviolet lights, with
hydrocarbons and nitrogen oxides.
Which are emitted by automobiles, gasoline, vapors,
fossil fuel power plants, and certain other industries