Short-term effects of irrigation with treated domestic wastewater on microbiological activity of a Vertic xerofluvent soil under Mediterranean conditions
Abstract: Approximately 70% of the world water use, including all the water diverted from rivers and pumped from underground, is used for agricultural irrigation, so the reuse of treated domestic wastewater (TWW) for purposes such as agricultural and landscape irrigation reduces the amount of water...
| Publicado en: | Journal of Environmental Management Vol. 102; pp. 108 - 115 |
|---|---|
| Autor principal: | |
| Formato: | Artículo |
| Publicado: |
Academic Press Inc.
Jul2012
|
| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=74471713&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 74471713 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 03014797 EMJ jtl: Journal of Environmental Management issn: 03014797 maglogo: N pubinfo: dt: Jul2012 vid: 102 pid: 735 pub: Academic Press Inc. artinfo: ui: 74471713 10.1016/j.jenvman.2011.12.034 ppf: 108 ppct: 7 formats: tig: atl: Short-term effects of irrigation with treated domestic wastewater on microbiological activity of a Vertic xerofluvent soil under Mediterranean conditions aug: au: Kayikcioglu, Huseyin Husnu affil: Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Ege University, A Block 35100 Bornova, Izmir, Turkey su: Mediterranean Region Sewage purification Sewage irrigation Water use Water shortages Humus Soil enzymology Soil microbiology sug: subj: Mediterranean Region Sewage Treatment Facilities Sewage purification Sewage irrigation Water use Water shortages Humus Soil enzymology Soil microbiology keyword: Enzymatic activity Microbial biomass Nitrogen mineralization Treated domestic wastewater Enzymatic activity Microbial biomass Nitrogen mineralization Treated domestic wastewater ab: Abstract: Approximately 70% of the world water use, including all the water diverted from rivers and pumped from underground, is used for agricultural irrigation, so the reuse of treated domestic wastewater (TWW) for purposes such as agricultural and landscape irrigation reduces the amount of water that needs to be extracted from natural water sources as well as reducing discharge of wastewater to the environment. Thus, TWW is a valuable water source for recycling and reusing in arid and semi-arid regions which are frequently confronting water shortages. In this regard, this study was planned to reveal the short-term effects of advanced-TWW irrigation on microbial parameters of Vertic xerofluvent soil. For this purpose, certain parameters were measured in the study, including soil total organic carbon (C), N-mineralization (N), microbial biomass carbon (C), soil microbial quotient (C/C) and the activities of the enzymes dehydrogenase (DHG), urease (UA), alkaline phosphatase (ALKPA), β-glucosidase (GLU) and aryl sulphatase (ArSA) in soils irrigated with TWW and fresh water (FW). All of the microbial parameters were negatively affected by TWW irrigation. Microbial parameters decreased by 10.1%–54.1% in comparison with the FW plots. This decrease especially in enzymatic activities of soil irrigated with TWW, presumably due to some heavy metals inhibited their activity associated with the soil types and the concentrations of heavy metals in wastewater. In contrast, C/C was found higher in the plots irrigated with TWW at the end of the experiment. The addition of organic matter to soil by irrigation with TWW is cause for the increase in this ratio. The dose of irrigation should be modified to reduce the quantity and to increase the frequency of application to avoid the loss of aggregation and salt accumulation. TWW irrigation is a strategy with many benefits to agricultural land management; however, long-term studies should be implemented to investigate the microbiological characteristics of soil and to assess the feasibility of wastewater reuse for irrigation. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
|---|