Stand age and fine root biomass, distribution and morphology in a Norway spruce chronosequence in southeast Norway

Børja, Isabella; Wit, Heleen de; Steffenrem, Arne; Majdi, Hooshang

doi:10.1093/treephys/28.5.773

Cited by 137 publications

(113 citation statements)

References 42 publications

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“…The root tissue density increased consistently with stand age. The result was in agreement with the previous study by Borja et al [2]. It is likely that that the lignification of fine root may also increase as the age of the tree increases, and the nutrient uptake level of the fine root may resort more to the mycorrhizal associations, as suggested by Bauhus et al [49].…”

Section: Fine Root Morphologysupporting

confidence: 93%

“…They are responsible for nutrient and water acquisition from soil and it is widely recognized that fine roots play a significant role in the carbon and biogeochemical cycle in forest ecosystems [1]. It has been estimated that approximately one third of annual net primary productivity was consumed in fine roots due to the rapid growth and turnover rate [2]. Consequently, fine roots are the major contributors for nutrient flux between the interface of plant and soil in forest ecosystems.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Stand Age on Fine Root Biomass, Production and Morphology in Chinese Fir Plantations in Subtropical China

et al. 2018

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Abstract:Despite the great importance of fine roots, which are referred to as roots smaller than 2 mm in diameter, in terms of carbon and nutrient cycling in terrestrial ecosystems, how fine root biomass, production, and turnover rate change with stand development remains poorly understood. Here we assessed the variations of fine root biomass, production, and morphology of trees and understory vegetation in Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) plantations at the ages of 7 years old, 17 years old and 25 years old in southern China, representing the sapling, pole and mature stage, respectively. Fine roots of trees and understory vegetation were sampled with sequential coring method to a depth of 60 cm and sliced into 4 layers (0-15, 15-30, 30-45 and 45-60 cm). Fine root biomass and necromass were highest in the pole stages among these three different aged Chinese fir plantations, although the significant differences were only detected for fine root necromass between 25-year-old and 7-year-old plantations. Fine root biomass of Chinese fir was heterogeneous in both temporal and spatial dimensions. Seasonal variation of fine root biomass in three age groups showed a similar pattern that the standing fine root biomass reached a peak in January and fell to the lowest in July. Vertically, the fine root biomass decreased with the increase of soil depth, but this extinction rate decreased with stand development. The effects of stand age on either total fine root length and surface area, or specific root length were not significant. However, the root tissue density increased significantly with Chinese fir stand ages, which suggested that the fine roots on Chinese fir may resort more to the mycorrhizal associations for the nutrient and water acquisition in the later stage of Chinese fir plantations. In addition to the stand age effect, the fine roots exhibited highly spatial and temporal variations in Chinese plantations, indicating different root foraging strategies for soil nutrient and water acquisition. Therefore, the fine root research not only helps to understand its role in carbon sequestration in terrestrial ecosystem under global climate change, but can also improve our understanding of nutrient management in forest ecosystem. At the same time, the research on the productivity of the Chinese fir growth stage provides guiding significance for the construction and management of Chinese fir.

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Section: Fine Root Morphologysupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Effect of Stand Age on Fine Root Biomass, Production and Morphology in Chinese Fir Plantations in Subtropical China

et al. 2018

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“…Roots are more effective pathways for building up soil organic carbon stocks than foliar litter [13,20]. Stand age and disturbances due to forest management can affect the mass of roots present in soil [21,22] and thus can have a large impact on the soil C balance.…”

Section: Introductionmentioning

confidence: 99%

Carbon Storage in a Eucalyptus Plantation Chronosequence in Southern China

Zeng

Peng

et al. 2015

Forests

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Patterns of carbon (C) allocation across different stages of stand development in Eucalyptus urophylla × E. grandis plantations are not well understood. In this study, we examined biomass and mineral soil C content in five development stages (1, 2, 3, 4-5, and 6-8 years old) of a Eucalyptus stand in southern China. The tree biomass C pool increased with stand age and showed a high annual rate of accumulation. Stems accounted for the highest proportion of biomass C sequestered. The C pool in mineral soil increased initially after afforestation and then declined gradually, with C density decreasing with soil depth. The upper 50 cm of soil contained the majority (57%-68%) of sequestered C. The other biomass components (shrubs, herbaceous plants, litter, and fine roots) accounted for <5% of the total ecosystem C pool. Total C pools in the Eucalyptus plantation ecosystem were 112.9, 172.5, 203.8, 161.1, in the five developmental stages, respectively, with most of the C sequestered below ground. We conclude that Eucalyptus plantations have considerable biomass C sequestration potential during stand development. OPEN ACCESSForests 2015, 6 1764

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“…The amount of the roots decreased with depth. Various authors described a similar root distribution (e.g., Roberts 1975;Persson 1983;Nadezhdina et al 2007;Č ermák et al 2008a;Børja et al 2008). This type of vertical distribution of coarse roots emphasizes the high importance of precipitation compared to the groundwater (Tatarinov et al 2008).…”

Section: Below-ground Skeletonmentioning

confidence: 64%

Above- and below-ground biomass, surface and volume, and stored water in a mature Scots pine stand

2014

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This study describes the amount and the spatial distribution of the above-and below-ground tree skeletondefined as the woody structure of stem, branches and rootsin a mature Scots pine (Pinus sylvestris L.) stand in Belgium. Tree skeleton data were linked to the respective needle area, and as such, this work provides the background framework for modeling the tree hydraulic architecture and the carbon balance of the forest stand. Using validated allometric equations, we were able to calculate the amount of the volume, of the biomass and of the corresponding surface areas of individual trees in the stand. Total woody biomass of the 66-year-old forest stand was 155 Mg ha -1 , i.e., 126 Mg ha -1 above ground and 29 Mg ha -1 below ground. The total bio-volume of the woody mass of the stand was 314 m 3 ha -1 . The highest fraction of this value was the stem bio-volume, i.e., 236 m 3 ha -1 or 75 % of the total. The total volume of all roots was 57 m 3 ha -1 (18 % of the total volume), and the volume of branches was 20 m 3 ha -1 (7 % of the total volume). The surface area of the roots ranged from 38,000 m 2 ha -1 in the winter to 68,000 m 2 ha -1 in the spring. The surface area of the stems was 2,700 m 2 ha -1 , and the surface area of all branches reached 4,400 m 2 ha -1 . The total above-ground water storage in the xylem was 94 m 3 ha -1 (or 9.4 mm), while the accessible stored water was 2 mm of that quantity. A comparative analysis of the biometric parameters showed the balance between the different functionally connected, operational surface areas of the trees. The needle surface area was similar to the root surface area and in the same order of magnitude as the surface area of woody cambium. The results allow to link water uptake with transpiration and assimilation with respiration.

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Stand age and fine root biomass, distribution and morphology in a Norway spruce chronosequence in southeast Norway

Cited by 137 publications

References 42 publications

Effect of Stand Age on Fine Root Biomass, Production and Morphology in Chinese Fir Plantations in Subtropical China

Effect of Stand Age on Fine Root Biomass, Production and Morphology in Chinese Fir Plantations in Subtropical China

Carbon Storage in a Eucalyptus Plantation Chronosequence in Southern China

Above- and below-ground biomass, surface and volume, and stored water in a mature Scots pine stand

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