Physico-chemical Properties of Water and Its Impactson the Species Diversity of Aquatic Plants at Disangmukh Wetland of Assam, India

Abstract

Disangmukh wetlands are an agglomeration of few wetlands beside the levee region of River Brahmaputra where the tributary Disang meets the Mighty Brahmaputra. The present study examines the physic-chemical properties of water and sees the relationship between water quality and the aquatic macrophytes in the Disangmukh wetland of Assam. The samples of plants and water were collected from four sites of Disangmukh wetland namely Ronga Garh, Rongmon, Kaziranga and Longsai beel. The plant’s samples were collected using the quadrat sampling method with 1 square meter and the diversity has been calculated using the Shannon Diversity Index (SDI) (H = -?s [(Pi) x ln (Pi)]). The results show the highest SDI at Longsai beel (2.58) and it was followed by Rongmon beel (2.2), Ronga Garh beel (2.13) and Kaziranga beel (2.11). DO, ORP and TDS shows a positive correlation with plant diversity.