Growing Trees in Road Foundation Materials

Kristoffersen, Palle

doi:10.1080/03071375.1999.9747228

Cited by 21 publications

(17 citation statements)

References 3 publications

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“…Craul 1992) than those which can be gained through a tree improvement program. Furthermore, new, promising urban planting techniques and planning methods have been introduced in recent years (Grabosky & Bassuk 1996;Randrup & Dralle 1997;Kristoffersen 1999). The soil should therefore be amended to suit the tree species and treated to supply roots with oxygen and to avoid water stress, nutrient deficiency, soil compaction and limited rooting volumes.…”

Section: Soil Conditionsmentioning

confidence: 99%

Selection of trees for urban forestry in the Nordic countries

Sæbø¹,

Benedikz²,

Randrup³

2003

Urban Forestry & Urban Greening

153

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Section: Soil Conditionsmentioning

confidence: 99%

Selection of trees for urban forestry in the Nordic countries

Sæbø¹,

Benedikz²,

Randrup³

2003

Urban Forestry & Urban Greening

153

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“…In urban greening, trees are planted traditionally in limited container-like soil spaces or wider structural soil (e.g. Grabosky and Bassuk 1995, Neal and Whitlow 1997, Kristoffersen 1999 volumes in which the load-bearing properties of the soil have been enhanced with stony matrices. Fine soil, suitable for tree rooting, is located in the voids of the stone matrix.…”

Section: List Of Abbreviations Abmentioning

confidence: 99%

High carbon losses from established growing sites delay the carbon sequestration benefits of street tree plantings – A case study in Helsinki, Finland

Riikonen

Pumpanen

Mäki

et al. 2017

Urban Forestry & Urban Greening

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We assessed the net carbon (C) sequestration dynamics of street tree plantings based on years of measurements at two case study sites each with different tree species in Helsinki, Finland. We assessed C loss from tree soils and tree C accumulation, tested the applicability of pre-existing growth and biomass equations against observations, and estimated the time point for the beginning of net C sequestration for the studied street tree plantings. The tree woody biomass C accumulation in the first 10 years after planting was 18-32 kg per tree. At the same time the C loss from the growth media was at least 170 kg per growth media volume (25 m 3) per tree. If this soil C loss was accounted for, the net C sequestration would begin, at best, approximately 30 years after planting. Biomass equations developed for traditional forests predicted more stem biomass and less leaf and branch biomass than measured for the species examined, but total aboveground biomass was generally well predicted. growth media organic matter may decompose quickly and lose C to the atmosphere (Bernal et al., 1998). Soil sealing (by e.g. asphalt or pavement), common in urban environments and predominantly used in combination with structural tree soils, impairs soil heat and soil water (SW) exchange (Scalenghe and Marsan, 2009) and limits the C input from above the ground, affecting biomass accumulation and decomposition. These effects may lead to overall C loss from street tree plantings unless the C sequestered * ln M = a + b (ln G), G = girth (cm) ** predicts volume; converted to mass with specific gravity of 0.40 (Alden, 1995).

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“…Early tests of structural soil mixes in containers showed that stone-soil mixes could support better root and top growth than compacted soils or typical road base materials (Grabosky and Bassuk 1995;Kristoffersen 1999). Growth was limited by net soil volume rather than the total volume of the stone-soil mix (Loh et al 2003).…”

Section: Structural Soilsmentioning

confidence: 99%

The Management of Tree Root Systems in Urban and Suburban Settings II: A Review of Strategies to Mitigate Human Impacts

Watson¹,

Hewitt²,

Custic³

et al. 2014

AUF

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Root systems of nearly all trees in the built environment are subject to impacts of human activities that can affect tree health and reduce longevity. These influences are present from early stages of nursery development and throughout the life of the tree. Reduced root systems from root loss or constriction can reduce stability and increase stress. Natural infection of urban tree roots after severing has not been shown to lead to extensive decay development. Roots often conflict with infrastructure in urban areas because of proximity. Strategies to provide root space under pavements and to reduce pavement heaving have been developed, but strategies for prevention of foundation and sewer pipe damage are limited to increasing separation or improved construction.

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Growing Trees in Road Foundation Materials

Cited by 21 publications

References 3 publications

Selection of trees for urban forestry in the Nordic countries

Selection of trees for urban forestry in the Nordic countries

High carbon losses from established growing sites delay the carbon sequestration benefits of street tree plantings – A case study in Helsinki, Finland

The Management of Tree Root Systems in Urban and Suburban Settings II: A Review of Strategies to Mitigate Human Impacts

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