POLLUTION ITS EFFECT ON CLIMATE CHANGE AND

AGRICULTURE

Presenter: Ms. Vaishali Sharma

B.Sc Agriculture 2nd yrRGSC,BHU ,mirzapur

What is pollution?When harmful substances contaminate

the environment it is called pollution .

Pollution refers to the very bad condition of environment in terms of quantity and quality

Sources of pollution

OTHERSPOLLUTION

AGRICULTURENATURAL

DOMESTIC &MUNICIPAL

INDUSTRY

BIOMEDICAL

MININGTRANSPORT

EFFECTS OF AIR POLLUTIONMETALLIC PARTICULATE POLLUTANTS

METABOLIC ACTIVITIES IN PLANTS

SO2 STOP PLANTS GROWTH, BLEACHING OF CHLOROPHYLL, LEAF NECROSIS(BROWN & BLACK SPOT ON LEAF)

EFFECTS OF AIR POLLUTIONON PLANTSNOx CHLOROSISFLUORIDE DAMAGES OF FRUIT

O3 REDUCE GROWTH RATE , DAMAGE OF PLANT LIFE, DEATH OF WHITE PINE TREE.

PAN DAMAGE OF CHLOROPLAST

Why we are concerned?Plant Health IssuesInjury to foliage may be visible in a short

time and appear as necrotic lesions (dead tissue), or it can develop slowly as a yellowing or chlorosis of the leaf.

There may be a reduction in growth of various portions of a plant. Plants may be killed outright, but they usually do not succumb until they have suffered recurrent injury.

Conclusion

Air pollution negatively affects the yield and quality of crops

Sensitivity of crops differs among species and cultivarsMeteorological conditions during crop growing season

affect the degree of negative effects on growth and yield of crops

Ozone poses the greatest threat to agriculturePlants also differ in their response to different air

pollutant combinations

Recommendations

Expand air pollutant monitoring networks into agricultural and forested areas

Need to establish yield response relationships applicable to different environmental conditions

Develop bioindicator protocols for impact evaluation

Explore high and low risk zones of air pollution impact in different regions

Establish realistic air quality guidelines for protecting vegetation including crops

Thanks…..