In situ amelioration of sodic minespoil with chemical amendments and crop management. I. Soil chemical properties

Sansom, J. J.; Naeth, M. Anne; Chanasyk, D. S.; Bateman, J. C.

doi:10.4141/s97-006

Cited by 3 publications

(5 citation statements)

References 11 publications

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“…Third, many studies have reported that growing salt tolerant species could improve soil physical and chemical properties in saline soils 21–23. An increase in soil nutrients could also positively affect plant growth.…”

Section: Discussionmentioning

confidence: 99%

The Ecological Restoration of Heavily Degraded Saline Wetland in the Yellow River Delta

Guan

Cao

et al. 2013

CLEAN Soil Air Water

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As a result of discontinuous water flow, agriculture, and increasing urban use of fresh water affecting the natural wetlands of the Yellow River Delta, these areas have experienced significant degradation in the past two decades, ultimately diminishing the overall natural wetland land area in the region. This study aimed to address the issue of decreasing fresh water in the Yellow River Delta by studying the effects of three different approaches to restoration on long‐term wetland recovery. The results of the study demonstrated that soil salt and available Na contents significantly decreased in response to all three restoration treatments. Impacts of the restoration treatments were more significant in 2009 than in 2010, as shown by the high rate of activity in the reed debris group. The highest phosphatase activity of the experimental period was also observed in the reed debris group. Meanwhile, a marked variation in soil nutrient elements (total carbon (TC), total nitrogen (TN), available phosphorus, and available potassium) was observed in the restoration treatment plots throughout the experimental period. TC and TN contents were generally higher in the restoration treatment groups than in the control group. Moreover, urease and phosphatase activity levels were highly correlated with one another, as well as with soil nutrient elements. In 2009, the yield of the Suaeda salsa plant was highest in the reed debris treatment group and lowest in the ploughing treatment group. The S. salsa plant did show a positive response to all of the different restoration treatments. Taken together, these results suggest that restoration approaches that implement ploughing techniques aided in the restoration of degraded saline wetlands.

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Section: Discussionmentioning

confidence: 99%

The Ecological Restoration of Heavily Degraded Saline Wetland in the Yellow River Delta

Guan

Cao

et al. 2013

CLEAN Soil Air Water

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“…Nitrogen cycling (Fyles 1984) became better understood. Amendments such as gypsum and sulfur were used to reduce sodicity (Sansom et al 1998a(Sansom et al , 1998b. Fly ash chemistry and minerology were studied by Warren (1983).…”

Section: Soil Reclamation Researchmentioning

confidence: 99%

Soil science at the University of Alberta: a century of service to science and society

et al. 2020

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This paper highlights major activities and achievements in soil science by professors at the University of Alberta (U of A), which provide incredible benefits to society, provincially, nationally, and globally. Evolution of the soils profession in Alberta commenced in 1919 with the hiring of FA Wyatt who developed the Department of Soil Science (DSS) and initiated a soil survey program in Alberta. JD Newton joined the department in 1922, teaching and supporting soil surveys that led to a fertilizer program greatly benefitting agriculture. With time, opportunities and problems were encountered with utilization of soils. U of A soil scientists conducted inventories, conducted innovative research, developed superior management techniques, and through evolving education and extension, continuously helped bring improvements to how we utilized and managed soil resources. The DSS 100 year evolution is chronicled under the themes of pedology (including soil survey), soil fertility, soil sustainability (conservation, land reclamation, contaminant remediation) with embedded specialized studies within these themes.

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“…This may be attributed to reduced evapotranspiration in the fallow/barley subplots. The soil moisture available to percolate in these subplots may have accelerated the leaching of salts, thus improving the ameliorative effects of the chemical amendments studied (Sansom et al 1998).…”

Section: Volumetric Moisture Contentmentioning

confidence: 99%

“…Fallow/barley subplots with higher TSW than forage subplots likely had increased salt leaching as indicated by the lower electrical conductivities in both amended minespoil layers (depth of 20-35 cm and 40-55 cm) under the fallow/barley versus the forage subplots in 1995 (Sansom et al 1998). …”

Section: Total Soil Watermentioning

confidence: 99%

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In situ amelioration of sodic minespoil with chemical amendments and crop management: II. Soil physical properties, soil moisture and plant growth

Sansom¹,

Chanasyk²,

Naeth³

et al. 1998

Can. J. Soil. Sci.

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. 1998. In situ amelioration of sodic minespoil with chemical amendments and crop management: II. Soil physical properties, soil moisture and plant growth. Can. J. Soil Sci. 78: 667-674. The effects of sulfur and gypsum amendments in conjunction with crop management (fallow/barley and forage) on soil physical properties, soil moisture and vegetation characteristics were measured on a sodic and calcareous sandy loam minespoil at the Highvale coal mine, west of Edmonton, Alberta.Amendment and crop management had no significant effect on bulk density, plant species composition, canopy cover, ground cover or annual aboveground biomass. Crop management significantly affected penetration resistance (which was generally higher under forage), while amendment treatments did not. Profile soil moisture was lowest within the gypsum-amended plots at all depths, and was similar for sulfur-amended and control plots. Crop management affected profile soil moisture, with significantly less moisture under continuous forage than fallow/barley. As percolation is critical to the effectiveness of amendments in the amelioration process, cereal/fallow rotations are more effective than continuous forage in facilitating that process. rotation jachère-orge, culture fourragère, sur les propriétés physiques et sur le profil hydrique du sol ainsi que sur la végétation. Aucun effet de l'un ou l'autre des traitements n'était observé sur la densité apparente du sol, ni sur la composition botanique, le couvert aérien, la couverture du sol (litière et sol nu) ou la biomasse aéri-enne annuelle. Par ailleurs, seul le système cultural influait sur la résistance du sol à la pénétration, laquelle était généralement supérieure sous culture fourragère. La teneur en eau du profil était particulièrement basse à toutes les profondeurs dans le traitement au gypse, mais dans le cas du soufre il n'y avait pas de différence avec les parcelles témoins. Selon le système cultural utilisé, le bilan hydrique du sol variait, étant significativement moins abondant sous prairie continue que dans l'assolement jachère-orge. Vu que la percolation est essentielle à l'action amélioratrice des amendements, les assolements jachère-céréale sont plus efficaces à cet égard que les cultures fourragères permanentes.

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In situ amelioration of sodic minespoil with chemical amendments and crop management. I. Soil chemical properties

Cited by 3 publications

References 11 publications

The Ecological Restoration of Heavily Degraded Saline Wetland in the Yellow River Delta

The Ecological Restoration of Heavily Degraded Saline Wetland in the Yellow River Delta

Soil science at the University of Alberta: a century of service to science and society

In situ amelioration of sodic minespoil with chemical amendments and crop management: II. Soil physical properties, soil moisture and plant growth

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