Eucalyptus planting and environmental issue

Eucalyptus was first introduced in Bangladesh in 1867. Within a short time a large degraded forest area has been planted with Eucalyptus. It grows in many areas in the northern part of Bangladesh. The availability of eucalyptus plant at low price and quick return from this plant are the main reasons for its expansion. But the unplanned plantation of this plant may harm environment in the long run. Eucalyptus plants invade the plantation area of other useful trees and plants. Eucalyptus have several exotic characters such as high demand of water, strong absorption of nutrients, adverse effects, desertification of the area, soil erosion etc. For these peculiar characteristics agriculturist suggests that the plantation of this plant may be made on marshy or fallow lands. Mixed planting is also suggested with proper management.

However the full use of Eucalyptus has not been tapped; introduction of alternative uses will increase its economic importance. Environmental confusion on eucalyptus can be minimised by proper management and crop mixing. Considerations of environmental factors should have priority in crop rotations, whereas productivity should be maintained by improved technology. Selection of appropriate provenances for specific sites is important for efficient output. Horizontal and vertical expansion of eucalyptus planting is possible in Bangladesh without a serious impact on the environment. The economic importance of the species can also be extended. The DAE should take proper steps for planned cultivation of eucalyptus.

Md Imamul Islam

Sher-e-Bangla Agricultural

University, Dhaka