Physiological parameters of plants as indicators of water quality in a constructed wetland
| Autor: | Shimon Rachmilevitch, Avi Golan-Goldhirsh, Oren Shelef, Tanya Gendler |
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| Rok vydání: | 2011 |
| Předmět: |
Photochemistry
Health Toxicology and Mutagenesis Plant Development Water supply Wetland Reuse Waste Disposal Fluid Water Purification Water Supply Environmental Chemistry geography geography.geographical_feature_category business.industry Environmental engineering Agriculture General Medicine Plants Pollution Indicator plant Wastewater Wetlands Constructed wetland Environmental science Sewage treatment Water quality business Water Pollutants Chemical |
| Zdroj: | Environmental Science and Pollution Research. 18:1234-1242 |
| ISSN: | 1614-7499 0944-1344 |
| Popis: | Increasing demand for water has stimulated efforts to treat wastewater for reuse in agriculture. Decentralized facilities for wastewater treatment became popular as a solution to remote and small communities. These systems mimic natural wetlands, cleaning wastewater as they flow through a complex of filter media, microbial fauna, and vegetation. The function of plants in constructed wetlands (CWs) has not been fully elucidated yet.In the research reported here, we provide evidence for a new use of plant physiological parameters in CWs as bioindicators of water quality along the system. We measured improved plant performance downstream of the CW by means of photochemical efficiency, CO(2) assimilation rate, and cell membrane stability. In addition, we found evidence for temporal improvement of plant performance, which was correlated to the establishment phase of plants in a newly operating CW. It is suggested that improved monitoring and management of CWs should take into planning consideration the promising potential of phyto-indicators. |
| Databáze: | OpenAIRE |
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