Before revision: The marsh organ is a collection of plastic pipes attached to a wooden framework that is placed in marshes to measure water level changes for the effects of inundation time and flood frequency on the productivity of marsh vegetationMorris, J.T.
After revision: The marsh organ is a collection of plastic pipes attached to a wooden framework that is placed in marshes to measure the effects of inundation time and flood frequency on the productivity of marsh vegetationMorris, J.T.