PURPOSE: A simple ecological waterway is provided to enable the installation of various shapes, since the entire shape of a waterway can be curved and to have an environment-friendly form by a boundary portion and a vegetation-net. CONSTITUTION: A simple ecological waterway comprises a boundary portion(110), a waterproof sheet(120), a support(130), and a vegetation mesh bag(140). The boundary portion is formed by the connection of columnar woods(112) consisting of logs. The waterproof sheet is installed on one lower end of both boundary portions and the bottom of the waterway to cover up the open surface. The support is installed in a part of the upper side of the radiation sheet. The support is fixed to the columnar wood using a piece nail.
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