Policy Mixes and their Alignment over Time: Patching and stretching in the oil sands reclamation regime in Alberta, Canada

2017 ◽  
Vol 27 (5) ◽  
pp. 472-483 ◽  
Author(s):  
Jeremy Rayner ◽  
Michael Howlett ◽  
Adam Wellstead
Keyword(s):  
Oil Sands ◽  
Policy Mixes ◽  
Oil Sands Reclamation ◽  
Over Time

scholarly journals ISLANDS – SOIL PATCHES AND PLANT COMMUNITY DYNAMICS ON A NEW OIL SANDS RECLAMATION DESIGN

2016 ◽  
Vol 2016 (1) ◽  
pp. 28-44 ◽  
Author(s):  
Bradley D. Pinno ◽  
◽  
Ira Sherr ◽  
Ruth C. Errington ◽  
Krista Shea
Keyword(s):  
Plant Community ◽  
Oil Sands ◽  
Community Dynamics ◽  
Plant Community Dynamics ◽  
Oil Sands Reclamation

Hydrocarbon-degrading genes in root endophytic communities on oil sands reclamation covers

2020 ◽  
Vol 22 (7) ◽  
pp. 703-712
Author(s):  
Eduardo K. Mitter ◽  
J. Renato de Freitas ◽  
James J. Germida
Keyword(s):  
Oil Sands ◽  
Oil Sands Reclamation

scholarly journals Characterizing Uncertainty in the Hydraulic Parameters of Oil Sands Mine Reclamation Covers and its Influence on Water Balance Predictions

2019 ◽  
Author(s):  
Md. Shahabul Alam ◽  
S. Lee Barbour ◽  
Mingbin Huang
Keyword(s):  
Water Balance ◽  
Oil Sands ◽  
Mine Reclamation ◽  
Inverse Modelling ◽  
Hydraulic Parameters ◽  
Short Term ◽  
Conventional Practice ◽  
Single Set ◽  
Oil Sands Reclamation

Abstract. One technique to evaluate the performance of oil sands reclamation covers is through the simulation of long-term water balance using calibrated soil–vegetation–atmosphere–transfer models. Conventional practice has been to derive a single set of optimized hydraulic parameters through inverse modelling (IM) based on short-term (

An evaluation of air permeability measurements to characterize the saturated hydraulic conductivity of soil reclamation covers

2015 ◽  
Vol 95 (1) ◽  
pp. 15-26 ◽  
Author(s):  
Mingbin Huang ◽  
Heather Rodger ◽  
S. Lee Barbour
Keyword(s):  
Hydraulic Conductivity ◽  
Oil Sands ◽  
Land Reclamation ◽  
Air Permeability ◽  
Saturated Hydraulic Conductivity ◽  
Soil Reclamation ◽  
Air Entrapment ◽  
Soil Covers ◽  
Weathering Processes ◽  
Over Time

Huang, M., Rodger, H. and Barbour, S. L. 2015. An evaluation of air permeability measurements to characterize the saturated hydraulic conductivity of soil reclamation covers. Can. J. Soil Sci. 95: 15–26. The saturated hydraulic conductivity (Ks) of soil covers used in land reclamation is known to change over time as the result of weathering processes. Guelph permeameter (GP) measurements have been used to track the evolution of Ks for soil covers at an oil sands mine near Ft. McMurray, Alberta. Although successful, the method was time consuming and consequently a rapid method of estimating Ks based on in situ air permeability measurements was developed. The objectives of this study were: (1) to use air permeability measurements to characterize the spatial variations of Ks for typical reclamation soils and (2) to compare air permeability measurements to direct measurements obtained through laboratory and GP measurements. The results highlight that the values of Ks estimated from measured air permeability values were higher than the values of Ks measured directly using the GP. This is likely due to swelling of clay soils or air-entrapment during GP measurements. Although the magnitude was over-estimated, the variability of Ks was captured by the air permeability measurements. Consequently, a limited program of comparative GP and air permeameter measurements could be used to more rapidly characterize the Ks of reclamation covers over time.

Laboratory-based nitrogen mineralization and biogeochemistry of two soils used in oil sands reclamation

2012 ◽  
Vol 92 (1) ◽  
pp. 131-142 ◽  
Author(s):  
M.D. MacKenzie ◽  
S.A. Quideau
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Nitrogen Mineralization ◽  
Microbial Community Structure ◽  
Oil Sands ◽  
Forest Floor ◽  
Mineral Soil ◽  
Athabasca Oil Sands Region ◽  
Nutrient Profiles ◽  
Oil Sands Reclamation

MacKenzie, M. D. and Quideau, S. A. 2012. Laboratory-based nitrogen mineralization and biogeochemistry of two soils used in oil sands reclamation. Can. J. Soil Sci. 92: 131–142. In the Athabasca oil sands region of Alberta, Canada, peat mineral and upland forest floor mineral soils are salvaged and stockpiled for reclamation. Previous work showed that sites reclaimed with forest floor mineral soil had better understory regeneration and nitrogen dynamics more similar to naturally disturbed ecosystems. Both soils and a mixture of the two were compared in laboratory incubations by examining nitrogen mineralization (over 45 wk) and factorial fertility additions (4 wk trial with NPK) on microbial community structure and nutrient availability. Nitrogen mineralization indicated forest floor mineral soil had lower release rates and a higher estimated labile nitrogen pool than peat mineral soil. Nitrogen mineralization in mixed soil started like peat mineral soil and finished like forest floor mineral soil. Fertility additions influenced microbial community structure less than soil type. Multi-response permutation procedure indicated the forest floor mineral soil microbial community was significantly different from peat mineral and mixed soil communities. Control nutrient profiles differed from those with added NPK. Forest floor mineral soil retained nitrogen as ammonium, while peat mineral and mixed soils were nitrate dominated. Reclamation will require all soil types to be used and these data will help determine soil placement prescriptions.

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