Temporal changes in soil carbon and nitrogen storage in a hybrid poplar chronosequence in northern Alberta

Teklay, Tesfay; Chang, Scott X.

doi:10.1016/j.geoderma.2008.01.023

Cited by 38 publications

(34 citation statements)

References 35 publications

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“…FOREST BIOMASS AS DRIVERS OF SOIL CO 2 EFFLUX Differences in forest trees species, age and canopy density are found to influence the rate of soil carbon stock and sequestration (Sartori et al 2007;Teklay & Chang 2008). This has been observed as a result of the amount and quality of organic matter through litter fall (C/N) and root activity (Jandl et al 2007).…”

Section: Effect Of Environmental Factors On Soil Co 2 Effluxmentioning

confidence: 99%

Drivers of Soil Carbon Dioxide Efflux in a 70 years Mixed Trees Species of Tropical Lowland Forest, Peninsular Malaysia

Mande¹,

Abdullah²,

Zaharin³

et al. 2014

JSM

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Section: Effect Of Environmental Factors On Soil Co 2 Effluxmentioning

confidence: 99%

Drivers of Soil Carbon Dioxide Efflux in a 70 years Mixed Trees Species of Tropical Lowland Forest, Peninsular Malaysia

Mande¹,

Abdullah²,

Zaharin³

et al. 2014

JSM

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“…Furthermore, the WEOM C:N ratios were about fourfold higher than those measured during many years of foreststand experimentation from northern Alberta (Teklay and Chang, 2008). However, WEOM varied considerably among seasons, as well as among years, because WEOM is strongly affected by climatic conditions such as temperature and precipitation (Zsolnay, 2003).…”

Section: Water-extractable Organic Mattermentioning

confidence: 85%

Optimum liquid density in separation of the physically uncomplexed organic matter in Arctic soils

Paré

Bedard‐Haughn

2011

Can. J. Soil. Sci.

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Paré, M. C. and Bedard-Haughn, A. 2011. Optimum liquid density in separation of the physically uncomplexed organic matter in Arctic soils. Can. J. Soil Sci. 91: 65–68. Using an appropriate density to separate the soil light fraction (LF) and heavy fraction (HF) is an important aspect of the density fractionation technique. The effect of liquid density when separating the physically uncomplexed Arctic soil organic matter (SOM) was tested on three Arctic sites: High-Arctic, Low-Arctic, and Sub-Arctic. Our results showed that selecting the right density to use for Arctic soils is not unequivocal. Nevertheless, based on these two criteria: (1) the difference between the C:N values of the LF and HF needs to be as large as possible, and (2) the C:N value of the whole soil needs to be different from the C:N values of the LF and HF, the optimum density for all of our Arctic sites was between 1.49 and 1.55 g mL−1. We concluded that 1.55g mL−1 was the conservative optimum liquid density to use to separate Arctic SOM light and heavy fractions.

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“…We did not consider the potential soil C loss or gain associated with poplar agroforestry because the literature suggests that afforestation, with trees from the Salicaceae family, does not produce significant soil C enrichment on a general basis [43,[56][57][58][59][60][61]. However, as part of a land use change process, hybrid polar afforestation on agricultural land can result in soil C loss, on the short-term, but, on the mid-term, soil C stocks generally recover to levels prior to afforestation [62].…”

Section: Increase In Carbon Nitrogen and Phosphorus Storage In Plantmentioning

confidence: 99%

Potential for Hybrid Poplar Riparian Buffers to Provide Ecosystem Services in Three Watersheds with Contrasting Agricultural Land Use

Fortier¹,

Truax²,

Gagnon³

2016

Forests

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Abstract:In temperate agricultural watersheds, the rehabilitation of tree vegetation in degraded riparian zones can provide many ecosystem services. This study evaluated ecosystem service provision potential following the conversion of non-managed herbaceous buffers to hybrid poplar (Populus spp.) buffers in three watersheds (555-771 km 2 ) of southern Québec (Canada), with contrasting agricultural land uses. To extrapolate services at the watershed level, total stream length where hybrid poplars could be established was calculated using GIS data from hydrological and land cover maps. After nine years, a 100% replacement of herbaceous buffers by hybrid poplar buffers along farm streams could lead to the production of 5280-76,151 tons of whole tree (stems + branches) biomass, which could heat 0.5-6.5 ha of greenhouses for nine years, with the potential of displacing 2-29 million litres of fuel oil. Alternatively, the production of 3887-56,135 tons of stem biomass (fuelwood) could heat 55-794 new farmhouses or 40-577 old farmhouses for nine years. Producing fuelwood in buffers rather than in farm woodlots could create forest conservation opportunities on 300-4553 ha. Replacing all herbaceous buffers by poplar buffers could provide potential storage of 2984-42,132 t C, 29-442 t N and 3-56 t P in plant biomass, if woody biomass is not harvested. The greatest potential for services provision was in the Pike River watershed where agriculture is the dominant land use. A review of the potential services of poplar buffers is made, and guidelines for managing services and disservices are provided.

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Temporal changes in soil carbon and nitrogen storage in a hybrid poplar chronosequence in northern Alberta

Cited by 38 publications

References 35 publications

Drivers of Soil Carbon Dioxide Efflux in a 70 years Mixed Trees Species of Tropical Lowland Forest, Peninsular Malaysia

Drivers of Soil Carbon Dioxide Efflux in a 70 years Mixed Trees Species of Tropical Lowland Forest, Peninsular Malaysia

Optimum liquid density in separation of the physically uncomplexed organic matter in Arctic soils

Potential for Hybrid Poplar Riparian Buffers to Provide Ecosystem Services in Three Watersheds with Contrasting Agricultural Land Use

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