دورية أكاديمية
أعرض في EDS

Riparian buffers: Disrupting the transport of E. coli from rural catchments to streams.

التفاصيل البيبلوغرافية
العنوان: Riparian buffers: Disrupting the transport of E. coli from rural catchments to streams.
المؤلفون: Lim TJY; Environment and Public Health Microbiology Lab (EPHM Lab), Department of Civil Engineering, Monash University, Victoria, Australia., Sargent R; Environment and Public Health Microbiology Lab (EPHM Lab), Department of Civil Engineering, Monash University, Victoria, Australia., Henry R; Environment and Public Health Microbiology Lab (EPHM Lab), Department of Civil Engineering, Monash University, Victoria, Australia., Fletcher TD; Waterway Ecosystem Research Group, School of Ecosystem & Forest Sciences, The University of Melbourne, Victoria, Australia., Coleman RA; Melbourne Water Corporation, Victoria, Australia., McCarthy DT; Environment and Public Health Microbiology Lab (EPHM Lab), Department of Civil Engineering, Monash University, Victoria, Australia. Electronic address: david.mccarthy@monash.edu., Lintern A; Environment and Public Health Microbiology Lab (EPHM Lab), Department of Civil Engineering, Monash University, Victoria, Australia. Electronic address: anna.lintern@monash.edu.
المصدر: Water research [Water Res] 2022 Aug 15; Vol. 222, pp. 118897. Date of Electronic Publication: 2022 Jul 24.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Pergamon Press Country of Publication: England NLM ID: 0105072 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-2448 (Electronic) Linking ISSN: 00431354 NLM ISO Abbreviation: Water Res Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Oxford, Pergamon Press.
مواضيع طبية MeSH: Agriculture*/methods , Escherichia coli* , Rivers*/microbiology , Trees* , Water Pollution*/prevention & control, Ecosystem ; Environmental Monitoring ; Forests ; Humans ; Water Quality
مستخلص: High levels of E. coli and associated faecal microbes in waterways as a result of agricultural and residential land use can pose environmental, human health, and economic risks. This study aims to understand the impacts of land use, climatic variables, and riparian buffers on in-stream E. coli concentrations. Flow, temperature, and E. coli were monitored during three sampling campaigns within eleven independent catchments. These catchments have varying land use and extents of riparian buffer coverage. Results showed that catchments with predominantly agricultural and residential land uses (average = 349.7 MPN/100 mL) had higher E. coli concentrations than predominantly forested catchments (average = 111.8 MPN/100 mL). However, there were no statistically significant differences in E. coli concentrations between the agricultural and residential land uses. Riparian buffers appear to reduce E. coli concentrations in streams, as indicated by significant negative correlations between in-stream E. coli concentrations with the riparian buffer areal coverage (Pearson's r = -0.95, Spearman's ρ = -0.90) and the ratio of buffer length to stream length (Pearson's r = -0.87, Spearman's ρ = -0.90). We find that riparian buffers potentially disrupt transport pathways that govern E. coli movement, which in-turn can affect the concentration-discharge relationship. This reinforces the importance of protecting and restoring riparian buffers along drainage lines in agricultural and rural-residential catchments to improve downstream microbial water quality.
(Copyright © 2022. Published by Elsevier Ltd.)
فهرسة مساهمة: Keywords: E. coli; Land use; Riparian buffers; Rural; Spatio-temporal variation
تواريخ الأحداث: Date Created: 20220806 Date Completed: 20220831 Latest Revision: 20220907
رمز التحديث: 20221213
DOI: 10.1016/j.watres.2022.118897
PMID: 35932702
قاعدة البيانات: MEDLINE
الوصف
تدمد:1879-2448
DOI:10.1016/j.watres.2022.118897