Morphological traits of Chamaecyparis obtusa fine roots are sensitive to soil acid buffering capacity

Doi, Ryuusei; Tanikawa, Toko; Wada, Ryusei; Hirano, Yasuhiro

doi:10.1007/s11104-020-04561-w

Cited by 8 publications

(2 citation statements)

References 40 publications

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“…Therefore, producing thinner roots with low RTD at acidic soils in spruce stands could support the more resource acquisition strategy. Doi et al [20] also showed the production of thinner second-order roots at more acidic soils, attributed to the higher nutrient absorption efficiency.…”

Section: Absorptive Root Morphological Variation With the Stand And Soil Propertiesmentioning

confidence: 97%

“…Absorptive roots with their small diameters and short lifespan are the most responsive component of the fine root system to changes in environmental factors [14,17]. Recent studies have shown that absorptive root morphological traits can vary widely across plant species [18] and soil nutrient patches, such as pH [19,20], carbon-to-nitrogen ratio (C/N), as well as available phosphorous (P) [21], and water resources [22,23]. Growing evidence suggests that trees optimize their resource uptake by modifying absorptive root morphological traits [18,24].…”

Section: Introductionmentioning

confidence: 99%

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Morphological Variation in Absorptive Roots in Downy Birch (Betula pubescens) and Norway Spruce (Picea abies) Forests Growing on Drained Peat Soils

Rezapour

Truu

Maddison

et al. 2022

Forests

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Peatland drainage based on ditch systems is a widely used forestry management practice in the boreal and hemiboreal forests to improve tree growth. This study investigated the morphological variation in absorptive roots (first- and second-order roots) across the distance gradient from the ditch with four sampling plots (5, 15, 40, and 80 m) in six drained peatland forests dominated by Downy birch and Norway spruce. The dominating tree species had a significant effect on the variation in absorptive root morphological traits. The absorptive roots of birch were thinner with a higher specific root area and length (SRA and SRL), higher branching intensity (BI), and lower root tissue density (RTD) than spruce. The distance from the ditch affected the absorptive root morphological traits (especially SRA and RTD), but this effect was not dependent on tree species and was directionally consistent between birch and spruce. With increased distance from the ditch (from plot 5 to plot 80), the mean SRA increased by about 10% in birch and 5% in spruce; by contrast, the mean RTD decreased by about 10% in both tree species, indicating a potential shift in nutrient foraging. However, soil physical and chemical properties were not dependent on the distance from the ditch. We found a species-specific response in absorptive root morphological traits to soil properties such as peat depth, pH, and temperature. Our results should be considered when evaluating the importance of morphological changes in absorptive roots when trees acclimate to a changing climate.

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Section: Absorptive Root Morphological Variation With the Stand And Soil Propertiesmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Morphological Variation in Absorptive Roots in Downy Birch (Betula pubescens) and Norway Spruce (Picea abies) Forests Growing on Drained Peat Soils

Rezapour

Truu

Maddison

et al. 2022

Forests

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Shifting of the first-order root foraging strategies of Chinese fir (Cunninghamia lanceolata) under varied environmental conditions

Liao

Fan

Wei

et al. 2023

Trees

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An increase of fine-root biomass in nutrient-poor soils increases soil organic matter but not soil cation exchange capacity

et al. 2022

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Morphological traits of Chamaecyparis obtusa fine roots are sensitive to soil acid buffering capacity

Cited by 8 publications

References 40 publications

Morphological Variation in Absorptive Roots in Downy Birch (Betula pubescens) and Norway Spruce (Picea abies) Forests Growing on Drained Peat Soils

Morphological Variation in Absorptive Roots in Downy Birch (Betula pubescens) and Norway Spruce (Picea abies) Forests Growing on Drained Peat Soils

Shifting of the first-order root foraging strategies of Chinese fir (Cunninghamia lanceolata) under varied environmental conditions

An increase of fine-root biomass in nutrient-poor soils increases soil organic matter but not soil cation exchange capacity

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