Behavior of Pesticides in Water-Sediment Systems

Katagi, Toshiyuki

doi:10.1007/0-387-32885-8_4

Cited by 44 publications

(60 citation statements)

References 225 publications

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“…3B), indicating that hydrolysis was the major pathway of degradation of trifloxystrobin in rice paddy ecosystem, which was also similarly demonstrated by Banerjee's findings (Banerjee et al, 2006). Conversely, owing to the adsorption equilibrium between water and soil (Bromilow et al, 2006;Katagi, 2006), the dissipation rate of trifloxystrobin in soil was relatively stable.…”

Section: Initial Deposits and Kinetics Of Residual Trifloxystrobinsupporting

confidence: 84%

Track of fate and primary metabolism of trifloxystrobin in rice paddy ecosystem

Cao

Wang

et al. 2015

Science of The Total Environment

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Section: Initial Deposits and Kinetics Of Residual Trifloxystrobinsupporting

confidence: 84%

Track of fate and primary metabolism of trifloxystrobin in rice paddy ecosystem

Cao

Wang

et al. 2015

Science of The Total Environment

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“…These differences may be due to the influence of contaminant sorption to the silt and clay size material (Figures 6a and 6b) and/or variation in the composition of organic matter in the different zones. For example, algal content, snail mucus and blackfly silks are all biogenic components of the sediment which have a demonstrable effect on the strength of contaminant sorption (Brereton et al, 1999;Katagi, 2006). In either case, the data indicate that the marginal areas at Snatford Bridge have a greater propensity to sorb these types of moderately polar contaminants.…”

Section: Consequences Of Intra-reach Variation In Sediment Compositiomentioning

confidence: 96%

Sediment storage in the shallow hyporheic of lowland vegetated river reaches

Heppell

Wharton

Cotton

et al. 2009

Hydrological Processes

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Abstract:Excessive fine sediment deposition on the river channel bed together with colmation of finer sediments within the hyporheic are now linked to the degradation of the aquatic habitats of gravel bed rivers in permeable catchments. Previous studies of chalk rivers (associated with outcrops of calcareous rock) have demonstrated the important role of aquatic vegetation in trapping fine sediment on the river channel bed. This research investigated the spatio-temporal patterns and composition of fine sediment stored in two vegetated river reaches, in the Frome and Piddle catchments, Dorset (UK), with contrasting hydrological regimes, in order to establish the importance of aquatic vegetation in controlling the magnitude and timing of sediment storage in chalk rivers.Monthly mapping of macrophyte and sediment cover at the two sites (Maiden Newton and Snatford Bridge, 2003-2004) revealed a cyclical pattern of sediment storage related to the growth and die-back of aquatic vegetation peaking at 66Ð8 kg m 2 in July 2003 at Maiden Newton, and 23Ð5 kg m 2 in October 2003 at Snatford Bridge. Sediment was stored within gravels and beneath vegetation in the margins and mid-channel locations at both sites. Significantly more sediment was stored beneath vegetation than within gravels. The spatio-temporal pattern of sediment storage at the reach scale and the composition of the stored sediments reflected the growth patterns and functional form (flexibility) of the dominant macrophytes Ranunculus penicillatus subsp. pseudofluitans (water crowfoot) and Rorippa nasturtium aquaticum (watercress). Finally, the paper discusses the implications of reach-scale patterns in sediment storage for contaminant storage.

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“…Although it is well documented that soil microbial communities can adapt to the mineralization of diuron or other related phenylureas following prolonged and repeated field exposure (e.g., Sørensen et al 2003;Dellamatrice and Monteiro 2004), knowledge on community biodegradation potential in contaminated rivers remains limited. Since biodegradation processes are known to be one of the major drivers of the natural attenuation of pesticide residues in the environment (Katagi 2006), the ability of aquatic microbial communities to adapt to pesticide biodegradation in lotic ecosystems may be a key environmental process (Batisson et al 2007). In small rivers, most of the heterotrophic microbial activity resides in benthic assemblages, and attached microbial communities are therefore likely to play a key role in the biodegradation of pollutants (Singh et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Evidence for adaptation of riverine sediment microbial communities to diuron mineralization: incidence of runoff and soil erosion

Pesce¹,

Martin-Laurent

Rouard

et al. 2010

J Soils Sediments

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Purpose Surface runoff and erosion are major drivers of pesticide transport from soils to rivers draining vineyard watersheds. A recent study showed that applications of diuron on vineyards and diuron dispersal could lead to microbial adaptation to diuron biodegradation from treated soils to the receiving hydrosystem. Given the limited knowledge on microbial adaptation to pesticide degradation in aquatic environments, we conducted a microcosm study designed to assess the impact of runoff and erosion processes on the adaptation of riverine-sediment microbial communities to diuron mineralization. Materials and methods The experimental laboratory set-up consisted in aquariums filled with natural riverine sediments and water and supplemented or not in triplicate (a) with diuron to simulate surface water runoff and (b) with diuron-treated vineyard soil to simulate erosion following a strong rainfall event. The resulting effects were estimated by assessing and comparing (a) the fate of diuron and diuron partitioning between sediment and water phases, (b)

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Behavior of Pesticides in Water-Sediment Systems

Cited by 44 publications

References 225 publications

Track of fate and primary metabolism of trifloxystrobin in rice paddy ecosystem

Track of fate and primary metabolism of trifloxystrobin in rice paddy ecosystem

Sediment storage in the shallow hyporheic of lowland vegetated river reaches

Evidence for adaptation of riverine sediment microbial communities to diuron mineralization: incidence of runoff and soil erosion

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