Differences in root longevity of some tree species

Black, Kyrsten E.; Harbron, C G; Franklin, M. F.; Atkinson, David; Hooker, J. E.

doi:10.1093/treephys/18.4.259

Cited by 59 publications

(53 citation statements)

References 15 publications

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“…Hardwoods and conifers may differ systematically in root dynamics, with hardwoods having higher root production and turnover (Black andothers 1998, Coleman andothers 2000). It is not known, however, whether they differ in their response to Ca availability or Ca:Al ratios.…”

Section: Introductionmentioning

confidence: 99%

Fine Root Dynamics and Forest Production Across a Calcium Gradient in Northern Hardwood and Conifer Ecosystems

et al. 2008

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Losses of soil base cations due to acid rain have been implicated in declines of red spruce and sugar maple in the northeastern USA. We studied fine root and aboveground biomass and production in five northern hardwood and three conifer stands differing in soil Ca status at Sleepers River, VT; Hubbard Brook, NH; and Cone Pond, NH. Neither aboveground biomass and production nor belowground biomass were related to soil Ca or Ca:Al ratios across this gradient. Hardwood stands had 37% higher aboveground biomass (P = 0.03) and 44% higher leaf litter production (P < 0.01) than the conifer stands, on average. Fine root biomass (<2 mm in diameter) in the upper 35 cm of the soil, including the forest floor, was very similar in hardwoods and conifers (5.92 and 5.93 Mg ha )1 ).The turnover coefficient (TC) of fine roots smaller than 1 mm ranged from 0.62 to 1.86 y )1 and increased significantly with soil exchangeable Ca (P = 0.03). As a result, calculated fine root production was clearly higher in sites with higher soil Ca (P = 0.02). Fine root production (biomass times turnover) ranged from 1.2 to 3.7 Mg ha )1 y )1 for hardwood stands and from 0.9 to 2.3 Mg ha )1 y )1for conifer stands. The relationship we observed between soil Ca availability and root production suggests that cation depletion might lead to reduced carbon allocation to roots in these ecosystems.

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Section: Introductionmentioning

confidence: 99%

Fine Root Dynamics and Forest Production Across a Calcium Gradient in Northern Hardwood and Conifer Ecosystems

et al. 2008

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“…For example, evergreen species generally have longerlived roots than do deciduous species (Black et al ., 1998;West et al ., 2003). Generally, high tissue density, lower maintenance respiration and larger diameter have been associated with longerlived roots (Pregitzer et al ., 1997(Pregitzer et al ., , 1998Eissenstat et al ., 2000).…”

Section: Introductionmentioning

confidence: 99%

“…In addition, faster-growing species tend to invest less in structural tissues and have shorter root lifespans (Ryser, 1996). Consequently, fine root lifespan is highly variable across species, ranging from weeks (Black et al ., 1998) to a few years (Eissenstat & Yanai, 1997) in similar life forms (e.g. trees).…”

Section: Introductionmentioning

confidence: 99%

Fine root distribution and persistence under field conditions of three co‐occurring Great Basin species of different life form

et al. 2004

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Summary• Fine roots of an annual grass, a perennial grass and a perennial shrub were examined. Based on life histories and tissue composition, we expected the greatest root persistence for the shrub and shortest for the annual grass.• Roots were observed with minirhizotrons over 2 yr for number, length and diameter changes. A Cox proportional hazard regression correlated root persistence with soil water, depth, diameter and date of production.• In 2001, grass roots had similar persistence times, but shrub roots had the shortest. In 2002, the annual had the longest median root persistence, the perennial grass intermediate and the perennial shrub had the shortest. All species responded similarly to the magnitude of seasonal precipitation; root numbers increased with favorable soil moisture and disappeared with drying; fewer, thinner roots at greater soil depths were found in the drier year (2001). Root persistence increased with soil moisture, diameter and earlier appearance in the spring.• Plasticity in root morphology and placement was influenced by water availability, yet persistence was surprisingly contrary to expectations.

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“…It is widely accepted that fine roots have a longevity of 1 year or sometime less (Guo et al, 2008). Poplar fine roots in general have a life span of 30 to 365 days; Populus tremuloides, Populus × canadensis and other hybrid poplars, in particular, have a span of 95 to 153 days, 33 to 95 days and 36 to 100 days, respectively (Black et al, 1998;Block et al, 2006;McCormack et al, 2012).…”

Section: Carbon Distribution and Storagementioning

confidence: 99%

Root Carbon Sequestration and Its Efficacy in Forestry and Agroforestry Systems: A Case of Populus euramericana I-214 Cultivated in Mediterranean condition

Jha

2018

Not Sci Biol

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Poplar is one of the most popular species of forestry and agroforestry land-use worldwide. It is currently assuming a growing importance for timber, bioenergy production and Carbon sequestration. Soil Carbon accumulation is associated with root litter, whereas available studies are disproportionate on root system in this species. Therefore, the study aimed at finding how much root Carbon, a hybrid poplar species (Populus euramericana I-214) sequestered in Forest System (FRS) and Agroforest System (AFS) by using soil excavation and root coring methods. A suitable conversion factor was used to get sequestered Carbon estimated from biomass. Carbon was distributed in maximum length, breadth and depth through different root components of both the systems, AFS occupied more rooting volume. Total belowground sequestered Carbon was higher in AFS (59.2 kg tree ). Although FRS stored higher belowground Carbon (without grain production), AFS was more efficient on account of Carbon land equivalent ratio. Thus the two available management systems have their own advantages in terms of Carbon storage and grain production.

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Differences in root longevity of some tree species

Cited by 59 publications

References 15 publications

Fine Root Dynamics and Forest Production Across a Calcium Gradient in Northern Hardwood and Conifer Ecosystems

Fine Root Dynamics and Forest Production Across a Calcium Gradient in Northern Hardwood and Conifer Ecosystems

Fine root distribution and persistence under field conditions of three co‐occurring Great Basin species of different life form

Root Carbon Sequestration and Its Efficacy in Forestry and Agroforestry Systems: A Case of Populus euramericana I-214 Cultivated in Mediterranean condition

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