TY - JOUR
T1 - Using high-resolution monitoring to determine the preferential transport of enteric bacteria and antibiotic resistance genes from liquid pig manure applied to tile-drained arable fields
AU - Bech, Tina B.
AU - Ernstsen, Vibeke
AU - Olsen, Preben
AU - Nyord, Tavs
AU - Rosenbom, Annette E.
N1 - Publisher Copyright:
© 2021 American Chemical Society.
PY - 2021
Y1 - 2021
N2 - The degree of preferential transport through soil is crucial to its ability to serve as a barrier to prevent fecal pollutants from reaching surface water and groundwater when liquid manure is applied to arable tile-drained fields. Over a seven-month period, drainage was analyzed for enteric bacteria (CFU), genes [16S, tet(W), and Intl1], turbidity, and two anions (nitrate and chloride) following application of liquid pig manure to two tile-drained arable clayey till fields. Combined with high-resolution monitoring of the temperature and specific conductivity of drainage, the study established that (i) drainage was impacted directly by precipitation bypassing the soil via macropores, (ii) the majority of leached nitrate, chloride, enteric bacteria, and genes was preferentially transported through clayey tills, (iii) enteric bacteria, tet(W), and Intl1 were detected in drainage for five months following application of the liquid manure, and (iv) soils with high potential for preferential transport may not serve as a barrier to prevent pollutants in liquid manure from reaching the aquatic environment.
AB - The degree of preferential transport through soil is crucial to its ability to serve as a barrier to prevent fecal pollutants from reaching surface water and groundwater when liquid manure is applied to arable tile-drained fields. Over a seven-month period, drainage was analyzed for enteric bacteria (CFU), genes [16S, tet(W), and Intl1], turbidity, and two anions (nitrate and chloride) following application of liquid pig manure to two tile-drained arable clayey till fields. Combined with high-resolution monitoring of the temperature and specific conductivity of drainage, the study established that (i) drainage was impacted directly by precipitation bypassing the soil via macropores, (ii) the majority of leached nitrate, chloride, enteric bacteria, and genes was preferentially transported through clayey tills, (iii) enteric bacteria, tet(W), and Intl1 were detected in drainage for five months following application of the liquid manure, and (iv) soils with high potential for preferential transport may not serve as a barrier to prevent pollutants in liquid manure from reaching the aquatic environment.
KW - ARGs
KW - enteric bacteria
KW - fecal pollution
KW - nitrate
KW - preferential transport
UR - http://www.scopus.com/inward/record.url?scp=85115214350&partnerID=8YFLogxK
U2 - 10.1021/acsagscitech.1c00070
DO - 10.1021/acsagscitech.1c00070
M3 - Article
AN - SCOPUS:85115214350
VL - 1
SP - 449
EP - 459
JO - ACS Agricultural Science and Technology
JF - ACS Agricultural Science and Technology
SN - 2692-1952
IS - 5
ER -