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Title: Relationships among anthropogenic disturbances representative riparian and non-riparian herbaceous indicators (biomass and diversity), land use, and lotic water quality : implications on rehabilitation of lotic waters
Authors: Gomes, PIA
Wai, OWH 
Kularatne, RKA
Priyankara, TDP
Anojika, KGMS
Kumari, GMNR
Keywords: Biomass
Lotic water quality
Issue Date: 2014
Publisher: Springer
Source: Water, air, & soil pollution, 2014, v. 225, no. 9, 2060 How to cite?
Journal: Water, air, & soil pollution 
Abstract: This study was carried out to evaluate the linkages among herbaceous plant biomass (i.e., above-ground and litter biomasses) and diversity (Shannon-Wiener index) in riparian and non-riparian areas, land use, and lotic water quality (which included first-and second-order natural streams, a canal, and a reach of a lowland river). Herb stands selected were free from anthropogenic disturbances such as farming and construction activities for a period of 3 years (this was the dominant and peak frequency of disturbances of the study area). The results suggested that herb indicators are good representatives of the land use. However, land use explanations for herb indicators were complex and not universal for all lotic waters. The correlations between herb indicators and water quality were strong for the low-order natural streams. In these streams, herb indicators explained >36 % of the total variation with several statistically significant herb indicators. However, the large river section showed weak correlations. Furthermore, the canal's hydrology (connectivity to sea) seemed to be more influential in shaping its water quality. This study demonstrated that the rehabilitation works with a span of 3-4 years using herbs in riparian and/or non-riparian areas could significantly improve water quality of low-order streams with natural origin.
ISSN: 0049-6979
EISSN: 1573-2932
DOI: 10.1007/s11270-014-2060-4
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