Short-term transport of glyphosate with erosion in Chinese loess soil — A flume experiment

Yang, Xiaomei; Wang, Fei; Bento, Célia P.M.; Xue, Sha; Gai, Lingtong; Dam, Ruud van; Mol, Hans; Ritsema, C.J.; Geissen, Violette

doi:10.1016/j.scitotenv.2015.01.071

Cited by 92 publications

(83 citation statements)

References 64 publications

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“…Two aliquots of 2 g were collected from each sample. Glyphosate and AMPA concentrations were determined in the aliquots through HPLC-MS/MS using the same extraction and derivatisation method (see the Supporting Information for full details), chemicals, mobile phases, column characteristics and instrumentation conditions as described in Bento et al (2016) and Yang et al (2015).…”

Section: Glyphosate and Ampa Analysismentioning

confidence: 99%

“…Particulate transport via water erosion is an important pathway for glyphosate and AMPA towards surface water bodies (Todorovic et al, 2014;Yang et al, 2015). In fact, after a 60 min rain simulation at a rain intensity of 1 mm min Yang et al (2015) observed that 4-5% of the initially applied glyphosate was lost/transported by runoff in the dissolved phase while 8-11% of the applied glyphosate was transported by the suspended load.…”

Section: Off-site Transport By Wind and Water Erosionmentioning

confidence: 99%

“…In fact, after a 60 min rain simulation at a rain intensity of 1 mm min Yang et al (2015) observed that 4-5% of the initially applied glyphosate was lost/transported by runoff in the dissolved phase while 8-11% of the applied glyphosate was transported by the suspended load. Glyphosate and AMPA are frequently detected in U.S. large rivers (53-89%, respectively), streams (53-72%, respectively), lakes, ponds and wetlands (34-30%, respectively) at maximum levels of respectively 300 and 48 μg L −1 (Battaglin et al, 2014).…”

Section: Off-site Transport By Wind and Water Erosionmentioning

confidence: 99%

“…Second, it is well-known that glyphosate and AMPA strongly adsorb and accumulate in the top centimeter(s) of soils (Laitinen et al, 2006;Okada et al, 2016;Yang et al, 2015). As glyphosate and AMPA contents determined in this study are average values for entire topsoil layers up to 15/20 cm depth (a consequence of using topsoil samples from an already established survey), actual contents in the surface layer could be higher than the determined average, implying that the presented potential erosion-driven transport rates of glyphosate and AMPA could be underestimated.…”

Section: Implications For Exposure and Risk Assessmentmentioning

confidence: 99%

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Distribution of glyphosate and aminomethylphosphonic acid (AMPA) in agricultural topsoils of the European Union

Silva

Montanarella

Jones

et al. 2018

Science of The Total Environment

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294

165

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• Data on occurrence and levels of glyphosate residues in EU soils is very limited.• Glyphosate and its metabolite AMPA were tested in 317 EU agricultural topsoils.• 21% of the tested EU topsoils contained glyphosate, and 42% contained AMPA.• Both glyphosate and AMPA had a maximum concentration in soil of 2 mg kg Approval for glyphosate-based herbicides in the European Union (EU) is under intense debate due to concern about their effects on the environment and human health. The occurrence of glyphosate residues in European water bodies is rather well documented whereas only few, fragmented and outdated information is available for European soils. We provide the first large-scale assessment of distribution (occurrence and concentrations) of glyphosate and its main metabolite aminomethylphosphonic acid (AMPA) in EU agricultural topsoils, and estimate their potential spreading by wind and water erosion. Glyphosate and/or AMPA were present in 45% of the topsoils collected, originating from eleven countries and six crop systems, with a maximum concentration of 2 mg kg −1. Several glyphosate and AMPA hotspots were identified across the EU. Soil loss rates (obtained from recently derived European maps) were used to estimate the potential export of glyphosate and AMPA by wind and water erosion. The estimated exports, result of a conceptually simple model, clearly indicate that particulate transport can contribute to human and environmental exposure to herbicide residues. Residue threshold values in soils are urgently needed to define potential risks for soil health and off site effects related to export by wind and water erosion.

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Section: Glyphosate and Ampa Analysismentioning

confidence: 99%

Section: Off-site Transport By Wind and Water Erosionmentioning

confidence: 99%

Section: Off-site Transport By Wind and Water Erosionmentioning

confidence: 99%

Section: Implications For Exposure and Risk Assessmentmentioning

confidence: 99%

See 2 more Smart Citations

Distribution of glyphosate and aminomethylphosphonic acid (AMPA) in agricultural topsoils of the European Union

Silva

Montanarella

Jones

et al. 2018

Science of The Total Environment

Self Cite

294

165

View full text Add to dashboard Cite

show abstract

“…Glyphosate is a relatively persistent compound and has been found in food, animals, plants, rivers, wastewater, soil, source water and aquatic sediment. [3][4][5] Numerous studies have suggested that glyphosate induces disruption of intelligence and reproductive and nervous systems. 6,7 Glyphosate has been classied as probably carcinogenic to humans (group 2A) by the International Agency for Research on Cancer (IARC) of the World Health Organization (WHO) because there is convincing evidence that it can cause cancer in laboratory animals.…”

Section: Introductionmentioning

confidence: 99%

Effective removal of glyphosate from water by resin-supported double valent nano-sized hydroxyl iron oxide

Jia

2017

RSC Adv.

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The double valent composite resin (DR) was prepared within nano-sized Fe(II) and Fe(III) hydroxyl oxide crosslinking polystyrene anion exchanger resin for efficient glyphosate removal from water. The structure, morphology, Fe species, crystal phase, and elemental composition of the prepared DR composites were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The effects of contact time, pH, temperature, coexisting anions and regeneration were studied in batch mode. It was found that a low pH value favors the adsorption of glyphosate, and the adsorption kinetics were well fitted by a pseudo-second-order model. The exhausted DR composites could be regenerated by NaOH solution for repeated use without any significant capacity loss, where the adsorbed glyphosate was effectively desorbed into the solution. Fixed-bed adsorption further validated that DR composites would be of considerable potential in the removal of glyphosate from contaminated waters.

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Vertical variations and transport mechanism of soil moisture in response to vegetation restoration on the Loess Plateau of China

Qiu

Gao

et al. 2021

Hydrological Processes

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Soil moisture is essential for vegetation restoration in arid and semi-arid regions.Ascertaining the vertical distribution and transportation of soil moisture under different vegetation types has a profound effect on the ecological construction. In this study, the soil moisture at a depth of 500 cm for four typical vegetation types, including Robinia pseudoacacia, Caragana korshinskii, Stipa bungeana, and corn, were investigated and compared in the Zhifanggou watershed of the Loess plateau. Additionally, hydrogen and oxygen stable isotopes were detected to identify the transport mechanism of soil moisture. The results showed vertical distribution and transportation of soil moisture were different under different vegetation types. Depth-averaged soil moisture under S. bungeana and corn generally increased along the profile, while C. korshinskii and R. pseudoacacia showed weakly increasing and relatively stable after an obvious decreasing trend (0-40 cm). The soil moisture under R. pseudoacacia was lower than that under other vegetation types, especially in deep layer. However, the effect of R. pseudoacacia on soil moisture in the topsoil (< 30 cm) could be positive.For R. pseudoacacia (160-500 cm), C. korshinskii (0-500 cm), and S. bungeana (0-100 cm), the soil moisture declined with increased in vegetation age. Planting arbor species such as R. pseudoacacia intensified the decline of soil moisture on the Loess Plateau. The capacity of evaporation fractionation of soil moisture followed the sequence: corn > S. bungeana > R. pseudoacacia > C. korshinskii. The δ 18 O values in soil water fluctuated across the profile. The δ 18 O values changed sharply in upper layer and generally remained stable in deep layer. However, in middle layer, the vertical distribution characteristics of the δ 18 O values were different under different vegetation types. We estimated that piston flow was the main mode of precipitation infiltration, and the occurrence of preferential flow was related to vegetation types. These results were helpful to improve the understanding of the response of deep soil moisture to vegetation restoration and inform practices for sustainable water management.

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Short-term transport of glyphosate with erosion in Chinese loess soil — A flume experiment

Cited by 92 publications

References 64 publications

Distribution of glyphosate and aminomethylphosphonic acid (AMPA) in agricultural topsoils of the European Union

Distribution of glyphosate and aminomethylphosphonic acid (AMPA) in agricultural topsoils of the European Union

Effective removal of glyphosate from water by resin-supported double valent nano-sized hydroxyl iron oxide

Vertical variations and transport mechanism of soil moisture in response to vegetation restoration on the Loess Plateau of China

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