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The main changes caused in Chalan Beel area by human induced activity over the last three decades are the constructing roads and highways, railways, houses, canals, over extraction of surface and ground water, increased Population, wild lives boom and degradation. These human induced changes have also influenced on the natural flow of water which has caused a great impact on the environment of Chalan Beel. These impacts are visible in plant life, drainage and basin system, local weather, surface stream flow, soil, irrigation, fish and other aquatic lives. Besides, water level crosses the danger level causing floods during the monsoon and ground water level goes down in dry season.Wildlife has suffered badly from the ever increasing pressures from human induced changes and destruction of natural wetland habits in recent decades. Many species of mammals, birds and reptile have become rare and equally the former legendary fish production is going to be vanishing.

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Md. Mojibor Rahman is an Assistant Professor of Mathematics at Government Teachers´ Training College in Pabna, Bangladesh. He has been teaching Mathematics Education in different training colleges for the last 17 years. His research focuses mainly on ecology system but he is also interested in any kinds of educational research.

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