Below- and above-ground biomass, production and nitrogen use in Scots pine stands in eastern Finland

Helmisaari, Heljä‐Sisko; Makkonen, Kirsi; Kellomäki, Seppo; Valtonen, Esko; Mälkönen, Eino

doi:10.1016/s0378-1127(01)00648-x

Cited by 263 publications

(237 citation statements)

References 38 publications

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“…Many studies have reported that fine root biomass peaks at canopy closure (Helmisaari et al, 2002;Claus & George, 2005), but the stand level data gathered for this study largely varied in this respect. The tree level correlations were better in agreement: fine root biomass increased with stand age, except for spruce in the boreal zone.…”

Section: Discussionmentioning

confidence: 98%

“…However, there was a significant relationship between pine fine root biomass and the C/N ratio in the soil organic layer ( Figure 3). Košir (1976), Kraigher (1997Kraigher ( , 1999, Kraigher et al (1996), Kutnar et al (2002), Leuschner & Hertel (2003), Murach (1984), Schmid (2002), Vilhar & Kraigher (1999) Temperate Pinus Helmisaari et al (2002, 2007), Mälkö nen (1974, Mamayev (1977Mamayev ( , 1986, Persson (1979), Vanninen & Mäkelä (1999) The fine root biomass of beech decreased with stand age and that of pine increased with stand age in the temperate zone ( Figure 4). There was one exceptionally old beech stand in the data.…”

Section: Stand Level Fine Root Biomassmentioning

confidence: 99%

“…5. The fine root biomass increases until canopy closure, thereafter it does not increase or decrease (Vogt et al, 1983;Vanninen et al, 1996;Helmisaari et al, 2002;Claus & George, 2005), but there can be species specific variation from this pattern (Leuschner & Hertel, 2003). 6.…”

Section: Introductionmentioning

confidence: 99%

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Variation in fine root biomass of three European tree species: Beech (Fagus sylvaticaL.), Norway spruce (Picea abiesL. Karst.), and Scots pine (Pinus sylvestrisL.)

Finér¹,

Helmisaari²,

Lõhmus

et al. 2007

Plant Biosystems - An International Journal Dealing with all As

204

129

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Fine roots (52 mm) are very dynamic and play a key role in forest ecosystem carbon and nutrient cycling and accumulation. We reviewed root biomass data of three main European tree species European beech, (Fagus sylvatica L.), Norway spruce (Picea abies L. Karst.) and Scots pine (Pinus sylvestris L.), in order to identify the differences between species, and within and between vegetation zones, and to show the relationships between root biomass and the climatic, site and stand factors. The collected literature consisted of data from 36 beech, 71 spruce and 43 pine stands. The mean fine root biomass of beech was 389 g m 72, and that of spruce and pine 297 g m 72 and 277 g m 72 , respectively. Data from pine stands supported the hypothesis that root biomass is higher in the temperate than in the boreal zone. The results indicated that the root biomass of deciduous trees is higher than that of conifers. The correlations between root biomass and site fertility characteristics seemed to be species specific. There was no correlation between soil acidity and root biomass. Beech fine root biomass decreased with stand age whereas pine root biomass increased with stand age. Fine root biomass at tree level correlated better than stand level root biomass with stand characteristics. The results showed that there exists a strong relationship between the fine root biomass and the above-ground biomass.

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Section: Discussionmentioning

confidence: 98%

Section: Stand Level Fine Root Biomassmentioning

confidence: 99%

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Variation in fine root biomass of three European tree species: Beech (Fagus sylvaticaL.), Norway spruce (Picea abiesL. Karst.), and Scots pine (Pinus sylvestrisL.)

Finér¹,

Helmisaari²,

Lõhmus

et al. 2007

Plant Biosystems - An International Journal Dealing with all As

204

129

View full text Add to dashboard Cite

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“…On the stand level, however, this was not always the case. Helmisaari et al [32] demonstrated that the fine root biomass reached the peak when the stand density was maximum. Furthermore, the soil conditions might also affect the amount of carbon allocated to belowground fine roots.…”

Section: Fine Root Biomass and Necromassmentioning

confidence: 99%

“…These results were consistent with some of the reported surveys. For instance, Yuan and Chen [44] revealed that in boreal forest fine root production increased initially to a peak, and declined thereafter, although other studies showed positive [32], negative stand age effects [45] or no effects on fine root production and turnover rate [46].…”

Section: Fine Root Production and Turnovermentioning

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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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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Mediterranean Stone Pine: Botany and Horticulture

Mutke¹,

Calama²,

González‐Martínez³

et al. 2011

Horticultural Reviews

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Below- and above-ground biomass, production and nitrogen use in Scots pine stands in eastern Finland

Cited by 263 publications

References 38 publications

Variation in fine root biomass of three European tree species: Beech (Fagus sylvaticaL.), Norway spruce (Picea abiesL. Karst.), and Scots pine (Pinus sylvestrisL.)

Variation in fine root biomass of three European tree species: Beech (Fagus sylvaticaL.), Norway spruce (Picea abiesL. Karst.), and Scots pine (Pinus sylvestrisL.)

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

Mediterranean Stone Pine: Botany and Horticulture

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