Long-term effects of organic amendments on the recovery of plant and soil microbial communities following disturbance in the Canadian boreal forest

Hahn, Aria S.; Quideau, Sylvie A.

doi:10.1007/s11104-012-1306-4

Cited by 56 publications

(47 citation statements)

References 47 publications

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“…Reconstructed soils were characterized by the presence of two unsaturated PLFAs, one of which (16 : 1ω11) has been reported to increase in concentration following litter amendment (Esperschütz et al, 2011). Characterization of organic matter and microbial communities as well as the interrelationship between them have often been used as simple measurements of reclamation success (e.g., Insam and Dosch, 1988;Banning et al, 2008;Hahn and Quideau, 2013). The chemical and physical characteristics of soil organic matter have been proposed as sensitive indicators related to changing environmental conditions (Leifeld and Kögel-Knabner, 2005;Turcotte et al, 2009), while the re-establishment of soil microbial communities similar to undisturbed environments has been recognized as a crucial target in mine restoration (Mummey et al, 2002;Machulla et al, 2005;Harris, 2009).…”

Section: Novel Vs Natural Ecosystemsmentioning

confidence: 99%

“…Studies of chronosequences of reconstructed soils under similar tree canopies detected a measurable evolution of organic matter composition with time (Sorenson et al, 2011). However, temporal changes in the soil microbial communities of the same novel ecosystems have been harder to establish (Dimitriu et al, 2010;Hahn and Quideau, 2013), suggesting that, at least in this boreal environment, soil microbial response may be lagging behind changes in organic matter composition and nutrient availability.…”

Section: Novel Vs Natural Ecosystemsmentioning

confidence: 99%

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Comparing soil biogeochemical processes in novel and natural boreal forest ecosystems

et al. 2013

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Emulating the variability that exists in the natural landscape prior to disturbance should be a goal of soil reconstruction and land reclamation efforts following resource extraction. Long-term ecosystem sustainability within reclaimed landscapes can only be achieved with the re-establishment of biogeochemical processes between reconstructed soils and plants. In this study, we assessed key soil biogeochemical attributes (nutrient availability, organic matter composition, and microbial communities) in reconstructed, novel, anthropogenic ecosystems, covering different reclamation treatments following open-cast mining for oil extraction. We compared the attributes to those present in a range of natural soils representative of mature boreal forest ecosystems in the same area of Northern Alberta. Soil nutrient availability was determined in situ with resin probes, organic matter composition was described with ¹³C nuclear magnetic resonance spectroscopy and soil microbial community structure was characterized using phospholipid fatty acid analysis. Significant differences among natural ecosystems were apparent in nutrient availability and seemed more related to the dominant tree cover than to soil type. When analyzed together, all natural forests differed significantly from the novel ecosystems, in particular with respect to soil organic matter composition. However, there was some overlap between the reconstructed soils and some of the natural ecosystems in nutrient availability and microbial communities, but not in organic matter characteristics. Hence, our results illustrate the importance of considering the range of natural landscape variability and including several soil biogeochemical attributes when comparing novel, anthropogenic ecosystems to the mature ecosystems that constitute ecological targets

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Section: Novel Vs Natural Ecosystemsmentioning

confidence: 99%

Section: Novel Vs Natural Ecosystemsmentioning

confidence: 99%

Comparing soil biogeochemical processes in novel and natural boreal forest ecosystems

et al. 2013

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“…The extensive use of peat has been motivated by its abundance in the premining landscape, while forest floor salvaged from upland areas has been shown to be an excellent source of seeds and propagules for native forest communities (Mackenzie and Naeth 2006;Naeth et al 2013). In addition, FFM may promote soil microbial activity (Béasse et al 2015), and the development of microbial communities more similar to those found on natural forest soils, although this may be due more to differences in the plant communities growing on the two types of reconstructed soils than to initial differences in the composition of PM and FFM (Hahn and Quideau 2013).…”

Section: Introductionmentioning

confidence: 99%

Carbon, nitrogen and phosphorus release from peat and forest floor-based cover soils used during oil sands reclamation

et al. 2017

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Reclamation practices in the oil sands region of Alberta involve the reconstruction of soil profiles using a combination of salvaged mineral substrates and organic-matter-rich surface materials, including peatmineral mix (PM) and forest floor -mineral mix (FFM). The successful re-establishment of vegetation on reclaimed sites is for a large part dependent on the nutrients these materials can provide. Hence, the overall objective of this study was to compare carbon (C), nitrogen (N), and phosphorus (P) release rates from PM and FFM materials used to cap reconstructed sandy soils. A 325 d laboratory incubation was conducted to measure these rates. The two materials released comparable amounts of N on a per kilogram of soil basis (111-118 mg N kg −1 ). However, when results were normalized based on each material's organic C content, N release was six times greater for FFM than for PM, in accordance with results of previous studies. In addition, overall C mineralization and P release rates were over one order of magnitude higher with FFM than with PM. As opposed to N, however, P release seemed to be controlled more by abiotic processes than by organic matter mineralization. While the FFM material overall released more N and P, it also degraded faster; in comparison, PM may provide a smaller but more stable release of N.Key words: mineralization, nitrogen, organic matter, phosphorus, soil reclamation.Résumé : Les méthodes de restauration du sol dans la région des sables bitumineux de l'Alberta supposent la reconstitution du profil pédologique au moyen de substrats minéraux récupérés et d'un matériel de surface riche en matière organique, notamment un mélange de tourbe et de minéraux (TM) et un autre de couverture morte et de minéraux (CMM). Une bonne végétalisation des sites restaurés dépend dans une large mesure des oligoéléments que procurent ces matériaux. C'est pourquoi l'étude avait pour objectif général de comparer le taux de libération du carbone (C), de l'azote (N) et du phosphore (P) par le TM et le CMM employés pour rebâtir les sols sablonneux. Les chercheurs ont mesuré ces taux en procédant à une expérience d'incubation de 325 jours en laboratoire. Les deux matériaux libèrent une quantité comparable de N par kilo de sol (111 à 118 mg de N kg −1 ). Cependant, quand on normalise les résultats d'après la concentration de C organique de chaque mélange, on constate que le CMM libère six fois plus de N que le TM, ce qui concorde avec les résultats des études antérieures. D'autre part, la minéralisation du C et le taux de libération du P du CMM dépassent ceux du TM de plus d'un ordre de grandeur. Contrairement à l'azote, le taux de libération du P semble contrôlé par des mécanismes abiotiques et non la minéralisation de la matière organique. Même si le CMM libère généralement plus de P et de N, ce matériau se détériore plus vite. Le TM, en revanche, pourrait libérer moins de N, mais de manière plus stable. [Traduit par la Rédaction] Mots-clés : minéralisation, azote, matière organique, phosphore, restau...

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“…This has been done for a variety of different ecosystem properties including soil microbial communities [18], nutrient supply profiles [19], aquatic vegetation [20], and tree growth [15]. Other studies have compared selected reclamation treatments to each other, but not necessarily to natural forests, in terms of initial plant community establishment [21], tree growth [22], tree seedling establishment [6], soil nutrient availability [16], or microbial communities [23].…”

Section: Introductionmentioning

confidence: 99%

Temporal Trends of Ecosystem Development on Different Site Types in Reclaimed Boreal Forests

Pinno

Hawkes

2015

Forests

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Forest development after land reclamation in the oil sands mining region of northern Alberta, Canada was assessed using long-term monitoring plots from both reclaimed and natural forests. The metrics of ecosystem development analyzed included measures of plant community structure and composition and soil nutrient availability. Early seral reclamation plots were grouped by site type (dry and moist-rich) and age categories, and these were compared with mature natural forests. There were few significant differences in ecosystem metrics between reclamation site types, but natural stands showed numerous significant differences between site types. Over time, there were significant changes in most plant community metrics such as species richness and cover of plant community groups (e.g., forbs, shrubs, and non-native species), but these were still substantially different from mature forests 20 years after reclamation. Available soil nitrogen did not change over time or by reclamation site type but available soil phosphorus did, suggesting that phosphorus may be a more suitable indicator of ecosystem development. The significant temporal changes in these reclaimed ecosystems indicate that studies of ecosystem establishment and development on reclaimed areas should be conducted over the long-term, emphasizing the utility of monitoring using long-term plot networks. OPEN ACCESSForests 2015, 6 2110

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Long-term effects of organic amendments on the recovery of plant and soil microbial communities following disturbance in the Canadian boreal forest

Cited by 56 publications

References 47 publications

Comparing soil biogeochemical processes in novel and natural boreal forest ecosystems

Comparing soil biogeochemical processes in novel and natural boreal forest ecosystems

Carbon, nitrogen and phosphorus release from peat and forest floor-based cover soils used during oil sands reclamation

Temporal Trends of Ecosystem Development on Different Site Types in Reclaimed Boreal Forests

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