Explain some harmful effects of agricultural practices on the environment.

Soln:

Following are the harmful effects of agricultural practices on the environment

Soil degradation Extensive

cropping causes loss of soil fertility. Also, over the time it can lead to soil erosion and finally to desertification.

Pollution

Use of synthetic fertilisers and pesticides leads to soil, water and air pollution. •

Water shortage

Excess use of ground water for agriculture lowers the water level. This results in acute water shortage at many places. •

Bio-magnification

The chemical pesticides, being non-biodegradable accumulate in organisms in increasing amounts at each trophic level.

Deforestation

Indiscriminate cutting of trees for agriculture has resulted in loss of habitat for wildlife. Thus, it also causes damage to natural ecosystem.