Modification of Subsoil Characteristics Resulting From Drainage Tile Installation

Chow, T. L.; Rees, H. W.; Webb, K. T.; Langille, D. R.

doi:10.1097/00010694-199311000-00007

Cited by 6 publications

(5 citation statements)

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“…Saturated hydraulic conductivity measured in situ above and between drain lines was found to be significantly greater in the disturbed soil than in the undisturbed soil, although the difference varied considerably (of the order of 2–43 times greater) and was independent of the time since the drains were laid 15…”

Section: Water Transport To and Between Drainsmentioning

confidence: 88%

“…Several studies have shown that transport‐related soil properties (bulk density, density and depth of earthworm burrows, hydraulic conductivity) can differ between the drainage trench and the undisturbed soil between the drains 3, 15, 17, 18, 20. The differences in transport parameters are generally greater in heavy clay soils and poorly drained soils, tending to be smaller or absent in lighter textures and looser soils.…”

Section: Discussionmentioning

confidence: 99%

“…Chow et al 15 examined differences in bulk density over and between drain lines as a function of the time since the drains were installed and the method of installation (trenching and trenchless ploughing) on a fine loamy till soil and a coarse loamy soil. Morphology studies revealed that trenching created a 30–40 cm horizontal disturbance in the soil, while trenchless ploughing (ploughed‐in pipe) caused only a 7–17 cm disturbance.…”

Section: Water Transport To and Between Drainsmentioning

confidence: 99%

“…In the first two studies,15, 21 the hydraulic properties were measured in situ , and the better natural drainage above the drains would thus have influenced the results. In the latter study,16 however, saturated hydraulic conductivity was determined in the laboratory and therefore reflects the soil properties per se.…”

Section: Water Transport To and Between Drainsmentioning

confidence: 99%

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Is tile drainage water representative of root zone leaching of pesticides?

Jacobsen

Kjaer

2007

Pest Management Science

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Given the methods presently available, determination of flux-averaged concentrations of pesticides in structured soils is always a compromise. Most of the available methods entail major uncertainties and limitations. Tile drainage monitoring has several advantages, but the extent to which it is representative of overall leaching has been questioned because it comprises a mixture of water of different origins. This literature review evaluates whether drainage water pesticide concentrations are representative of root zone leaching of pesticides. As there are no reports quantifying the extent to which the flux-averaged concentration of pesticides in drainage water differs from that found between the drains, evidence-based conclusions cannot be drawn. Nevertheless, the existing literature does suggest that the concentration in drainage water does not always correspond to the concentration at drain depth between the drains; depending on the conditions pertaining, the concentrations may be higher or lower. As to whether the flux-averaged concentration of pesticides in drainage water is representative of the interdrain concentration at drain depth it is concluded that (1) the representativeness of drainage water concentrations can be questioned on very well-drained soils and on poorly drained soils with little capacity for lateral transport beneath the plough layer, (2) the conditions provided by relatively porous soils and moderate climatic conditions are conducive to the drainage water concentration being representative and (3) drainage water will be more representative in the case of weakly sorbed pesticides than for strongly sorbed pesticides. Used critically, it is thus believed that drainage water concentrations can serve to characterize the flux-averaged concentration of pesticides at drain depth. However, the use of drainage water for determining average concentrations necessitates thorough investigation and interpretation of precipitation, percolation, drain outflow and concentration dynamics.

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Section: Water Transport To and Between Drainsmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Water Transport To and Between Drainsmentioning

confidence: 99%

Section: Water Transport To and Between Drainsmentioning

confidence: 99%

See 2 more Smart Citations

Is tile drainage water representative of root zone leaching of pesticides?

Jacobsen

Kjaer

2007

Pest Management Science

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“…Many soil and water conservation BMPs have been adopted, developed and implemented in AC and studies have been carried out to examine their effectiveness. For example, a group in the Fredericton Research and Development Centre (FDRC) of Agriculture and Agri-Food Canada (AAFC) examined the effectiveness of stone removal and stone crushing, tile drainage and diversion terraces and grassed waterway systems (DTGWs) on their designed functions [16,17]; Bélanger et al [9,18] examined the effects of supplemental irrigation and N fertilizer on potato yield and tuber quality. Other BMPs evaluated in this region include fertilizer management, crop rotation, and different tillage operations [12,19,20].…”

Section: Introductionmentioning

confidence: 99%

Landscape Integrated Soil and Water Conservation (LISWC) System for Sloping Landscapes in Atlantic Canada

2021

Agriculture

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Soil and water are fundamental and precious resources for agriculture. In Atlantic Canada (AC), intensive agricultural production systems have led to detrimental environmental effects such as soil erosion and the contamination of receiving waters, posing significant threats to the resilience and sustainability of the agro-ecosystem. Although many beneficial management practices (BMPs) have been developed, they all have their shortcomings and there are often trade-offs for each individual BMP. In this paper, a new paradigm is proposed for soil and water conservation—landscape integrated soil and water conservation (LISWC), a system designed to conserve and reuse soil and water within the landscape by integrating multiple BMPs based on an understanding of the landscape processes and knowledge about the BMPs. On a typical sloping field in AC, an LISWC system can be established by integrating BMPs such as diversion terraces and grassed waterways, tile drainage, water retention structures, supplemental irrigation, conservative tillage practices and soil–landscape restoration. Each individual BMP is designed to enhance one aspect of soil and water conservation but working on their own, they are all insufficient for the landscape as a whole and sometimes even have negative impacts. However, once integrated in the landscape, they complement each other: water erosion is reduced by diversion terraces and grassed waterway and conservative tillage, field drainage condition is enhanced by tile drainage, runoff and tile drained water is stored in the retention structure and reused for irrigation, and most eroded soil is returned to the soil loss area with soil–landscape restoration. This holistic landscape perspective can be used to develop LISWC systems for other landform types or applied at watershed or regional scales. Future studies are needed for the connections and interactions between individual BMPs, and analysis on the overall economic benefit of an LISWC system.

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Evaluation of technologies for sequestering carbon in agricultural land by using organic filter underdrains

Kitagawa

Tsukamoto

2013

Paddy Water Environ

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Modification of Subsoil Characteristics Resulting From Drainage Tile Installation

Cited by 6 publications

References 0 publications

Is tile drainage water representative of root zone leaching of pesticides?

Is tile drainage water representative of root zone leaching of pesticides?

Landscape Integrated Soil and Water Conservation (LISWC) System for Sloping Landscapes in Atlantic Canada

Evaluation of technologies for sequestering carbon in agricultural land by using organic filter underdrains

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