Specifically, the land of this region is plain and fertile. These factors and development works and modernization have affected the ecosystem of this region. Some major effects and measures to control them are described below:
- Forests are destroyed to expand the agricultural lands and to collect the forest products. There is a high probability of loss of forest near cultivable land. We should stop the process of deforestation and make people aware about the conservation of forests.
- While establishing infra-structures, the cultivable land, sources of water, forest area may be destroyed. So, the concept of integrated development should be launched.
- The stones, soils, sand etc. transported from the hill region are deposited in the terai. These materials are covering fertile land. Due to this reason, fertility of land is declining. Landslide and soil erosion of the hill region should be checked for it.
- The people use chemical fertilizers and insecticides to yield more agricultural production. Due to this activity, the fertility of soil will decrease and the useful insects may die along with harmful insects. Therefore, more use of chemical fertilizers and insecticides should be discouraged. Similarly, the awareness programmes should also be conducted to make local people conscious about the negative effect of degradation of ecosystem.