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C. S. Jahan Q. H. Mazumder A. T. M. M. Islam M. I. Adham 《Journal of the Geological Society of India》2010,76(2):134-142
The Barind Integrated Area Development Project (BIADP), NW Bangladesh launched in late eighties of last century boosted cropping
intensity from 117% in pre-BIADP to about 200% at present. Increasing trend of rainfall for the period 1980–2006 in the southern
portion had a positive impact on BIADP, but in the northeastern part, reverse trend is indicated. The groundwater outflow
from the central part following the surface gradient is indicative of effluent drainage characteristics. Although rainfall
has increased in the southern part, there has been progressive decline in groundwater level due to increase in irrigation
demand. In the northern part there has been decline in groundwater level due to less resource potential. The PET, ETcrops and net irrigation requirement generally has decreased from pre- to post-Project implementation stages and rainwater has
been the supplementary irrigation resource and thus dependency on groundwater has been reduced with exception in northwestern
part. While the southern part is marching towards humid condition, north is creeping towards semi-aridity. Proper groundwater
resource management with ecological balance is warranted for the sustainability of BIADP. 相似文献