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Shifting Cultivation Essay

435 words - 2 pages

Journal of Forestry Research (2012) 23(4): 623−630
DOI 10.1007/s11676-012-0303-z

ORIGINAL PAPER

Shifting cultivation effects on creek water quality around Barkal
Upazila in Chittagong Hill Tracts, Bangladesh
Shyamal Karmakar • S. M. Sirajul Haque • M. Mozaffar Hossain • Sohag Miah

Received: 2011-07-20;

Accepted: 2012-07-20

© Northeast Forestry University and Springer-Verlag Berlin Heidelberg 2012

Abstract: We report the effects of shifting cultivation on water quality
in 16 creeks investigated once in 2007 and twice in 2008 in 16 apparently
similar small neighboring watersheds, each of 3 to 5 ha, at four locations
around Barkal sub-district ...view middle of the document...

Conductivity and concentrations of HCO3-, PO43-, Ca2+
and Mg2+ in creek water showed no definite trend between shifting cultivation and the other land cover types. At one area near the Forest Range
Office of Barkal, creek water pH was 5.8 under land cover with a combination of shifting cultivation and plantation. At this area Na+ concentration in shifting-cultivation land ranged from 32.33 to 33.00 mg⋅L-1 and in
vegetated area from 25.00 to 30.50 mg⋅L-1 in 2007. At another area,
Chaliatali Chara, SO42- concentration in a shifting-cultivation watershed
ranged from 4.46 to 10.51 mg⋅L-1, lower than in a vegetated watershed
that ranged from 11.69 to 19.98 mg⋅L-1 in 2007. SO42- concentration in
this shifting-cultivation area ranged from 1.28 to 1.37 mg⋅L-1 and in the
vegetated area from 1.37 to 3.50 mg⋅L-1 in 2008.
Keywords: Shifting cultivation; Creek water quality; Chittagong Hill
Tracts; Riparian vegetation; Land cover; Bangladesh

Introduction
Chittagong Hill Tracts (CHTs) is the only mountainous region in
Bangladesh and is comprised of 74% hilly. The hillocks of CHTs
The online version is available at http://www.springerlink.com
Shyamal Karmakar • S. M. Sirajul Haque (

)

M. Mozaffar Hossain • Sohag Miah
Institute of Forestry and Environmental Sciences, University of Chittagong, Chittagong 4331, Bangladesh.
E-mail: sms_haque@yahoo.com
Responsible editor: Yu Lei

are the continuation of the Himalayan range possessing most
hills

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