Morphology, biomass and nutrient status of fine roots of Scots pine (Pinus sylvestris) as influenced by seasonal fluctuations in soil moisture and soil solution chemistry
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A field monitoring study was carried out to follow the changes of fine root morphology, biomass and nutrient status in relation to seasonal changes in soil solution chemistry and moisture regime in a mature Scots pine stand on acid soil. Seasonal and yearly fluctuations in soil moisture and soil solution chemistry have been observed. Changes in soil moisture accounted for some of the changes in the soil solution chemistry. The results showed that when natural acidification in the soil occurs with low pH (3.5–4.2) and high aluminium concentration in the soil solution (>3–10 mg l−1), fine root longevity and distribution could be affected. However, fine root growth of Scots pine may not be negatively influenced by adverse soil chemical conditions if soil moisture is not a limiting factor for root growth. In contrast, dry soil conditions increase Scots pine susceptibility to soil acidification and this could significantly reduce fine root growth and increase root mortality. It is therefore important to study seasonal fluctuations of the environmental variables when investigating and modelling cause-effect relationships.
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- Morphology, biomass and nutrient status of fine roots of Scots pine (Pinus sylvestris) as influenced by seasonal fluctuations in soil moisture and soil solution chemistry
Plant and Soil
Volume 270, Issue 1 , pp 233-247
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- Kluwer Academic Publishers
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- fine roots
- Pinus sylvestris
- soil acidification
- soil moisture
- Industry Sectors
- Author Affiliations
- 1. Department of Soil Science, School of Human and Environmental Sciences, The University of Reading, PO Box 233, Reading, RG6 6DW, United Kingdom
- 2. Environmental and Human Sciences Division, Forest Research, Alice Holt Lodge, Farnham, Surrey, GU10 4LH, United Kingdom