Open AccessBangladesh - the deltaic floodplain explores the role of its mountainous landscape
Author(s) -
Mohammed Shafiul Alam Chowdhury,
Mohammad Zahirul Haque
Publication year - 2020
Publication title -
elmi xəbərlər
Language(s) - English
Resource type - Journals
eISSN - 2789-4614
pISSN - 2789-4606
DOI - 10.54414/eiye6871
Subject(s) - floodplain , livelihood , geography , habitat , ecosystem , environmental degradation , surface runoff , structural basin , natural (archaeology) , flooding (psychology) , water resource management , environmental protection , hydrology (agriculture) , environmental science , ecology , geology , agriculture , archaeology , psychology , psychotherapist , paleontology , cartography , geotechnical engineering , biology
Bangladesh is a deltaic floodplain which is blessed with many major rivers which originate from the young mountains outside the national borders of Bangladesh. These rivers are the most prominent feature, influencing the overall socio-economic condition of the country. Analysis of the geological setting show that the Bengal basin has been filled with sediments derived from erosion of the highland boundaries on all three landward sides. The objectives of the study is to explore the structure and composition of the hilly landscape, the changes of these components due to natural calamities, unplanned anthropogenic development that has affected the biodiversiy, widllife habitat and other ecosystem components. The study shows that upstream water pollution has caused a reduction of fresh water availability on the floodplain area. As a result, food, habitat and livelihood security has fallen under threat for both mountainous and plains people. The paper was prepared based on reviewing scientific literatures and the secondary data was obtained with necessary modification. Runoff data for hilly areas was generated from average rainfall data obtained from the Meteorology department. The study reveals the effects of mountainous landscape degradation in the northeastern and eastern parts of the country that may breakdown the ecosystem and affect the downstream inhabitants in various ways like food security etc. Both long-term and short-term policies should be adopted to resolve the issues.