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Linking litter calcium, earthworms and soil properties: a common garden test with 14 tree species
TLDR
Differences in litter calcium concentrations among tree species resulted in profound changes in soil acidity and fertility that were similar within and among tree groups, and were associated with increased native earthworm abundance and diversity. Expand
Building roots in a changing environment: implications for root longevity
TLDR
Using an efficiency model, it is shown that reduced tissue Nconcentration and reduced root maintenance respiration, both of which are predicted to result from elevated CO2, should lead to slightly longer root life spans. Expand
The Ecology of Root Lifespan
TLDR
This chapter discusses the competing theories of root lifespan and reviews the evidence available to support them, and suggests that seasonality of climate and the need for carbon and nutrient storage could constrain the root lifespan that optimizes plant fitness to differ from that which maximizes root efficiency. Expand
Redefining fine roots improves understanding of below-ground contributions to terrestrial biosphere processes.
TLDR
It is demonstrated how order-based and functional classification frameworks improve the understanding of dynamic root processes in ecosystems dominated by perennial plants. Expand
COMPARISONS OF STRUCTURE AND LIFE SPAN IN ROOTS AND LEAVES AMONG TEMPERATE TREES
TLDR
The results suggest that tissue structure and longevity aboveground (leaves) can contrast markedly with that belowground (roots), which corroborates previous research that has suggested a trade-off between organ life span and higher organ N concentrations. Expand
MARKED DIFFERENCES IN SURVIVORSHIP AMONG APPLE ROOTS OF DIFFERENT DIAMETERS
TLDR
This work used minirhizotron data from 16-yr-old apple (Malus domestica) trees to investigate differences in life span and life history among fine roots whose diameters differed by tenths of a millimeter, and advocated the use of a functional definition for the fine root whenever possible. Expand
Costs and benefits of constructing roots of small diameter
TLDR
It is shown that evergreen plants with greater leaf longevity commonly have thicker leaves, lower photosynthetic capacity, and lower respiration rates than deciduous plants, and these kinds of relationships may also be true for thi... Expand
Predicting fine root lifespan from plant functional traits in temperate trees.
TLDR
Root diameter and plant growth rate, together or in combination with root N : C ratio, were useful predictors of root lifespan across the 12 species and highlight linkages between fine root lifespan in temperate trees and plant functional traits that may reduce uncertainty in predictions ofRoot lifespan or turnover across species at broader spatial scales. Expand
Linking fine root traits to maximum potential growth rate among 11 mature temperate tree species
TLDR
While roots of fast-growing species may be constructed for more rapid soil exploration and shorter life span than those of slow- growing species, root physiology is either more closely tied to overall plant physiology, which is more similar among mature trees, or masked by variation in soil microsites, root age or interactions with mycorrhizal fungi. Expand
Fine root decomposition rates do not mirror those of leaf litter among temperate tree species
TLDR
This study suggests that among these temperate trees, species effects on C and N dynamics in decomposing fine roots and leaf litter may not reinforce each other, suggesting that species differences in rates of microbially mediated decomposition may not be as large as they would be if above- and belowground processes were working in similar directions. Expand
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