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Runoff transport of faecal coliforms and phosphorus released from manure in grass buffer conditions
Author(s) -
Stout W.L.,
Pachepsky Y.A.,
Shelton D.R.,
Sadeghi A.M.,
Saporito L.S.,
Sharpley A.N.
Publication year - 2005
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.2005.01755.x
Subject(s) - buffer strip , surface runoff , manure , phosphorus , environmental science , fecal coliform , soil water , hydrology (agriculture) , agronomy , chemistry , biology , soil science , water quality , ecology , geotechnical engineering , organic chemistry , engineering
Aims: To test the hypothesis that faecal coliform (FC) and phosphorus (P) are transported similarly in surface runoff through the vegetative filter strip after being released from land‐applied manure. Methods and Results: The Hagerstown soil was packed into boxes that were 10 cm deep, 30 cm wide and 100, 200 or 300 cm long. Grass was grown in boxes prior experiments. Same‐length boxes were placed under rainfall simulator and tilted to have with either 2% or 4% slopes. Dairy manure was broadcast on the upper 30‐cm section. Rainfall was simulated and runoff samples were collected and analysed for Cl, FC and total phosphorus (TP). Mass recovery, the concentration decrease rate k , and the ratio FC : TP showed that there was a consistent relationship between FC and TP in runoff. Conclusion: The FC and TP transport through simulated vegetated buffer strips were highly correlated. Significance and Impact of the Study: As a knowledge base on the effect of the environmental parameters on P transport in vegetated buffer strips is substantially larger than for manure‐borne bacteria, the observed similarity may enhance ability to assess the efficiency of the vegetated buffer strips in retention of FC currently used as indicator organisms for manure‐borne pathogens.