Object

Title: Seasonal changes in foliage biomass and age composition of live and falling needles in Scots pine saplings treated with sulphuric acid, urea, or lime

Creator:

Tarabuła, Taida

Date issued/created:

2002

Resource Type:

Article

Subtitle:

Foliage dynamics and age composition of Scots pine needles

Contributor:

Polish Academy of Sciences. Institute of Ecology

Publisher:

Polish Academy of Sciences. Institute of Ecology. Publishing Office

Place of publishing:

Dziekanów Leśny

Description:

Pages 371-380 : illustrations ; 27 cm ; Bibliographical references (pages 379-380)

Abstract:

Using destructive sampling, seasonal dynamics of needle biomass and age composition of foliage and needle fall were studied in a Scots pine forest under conditions of various chemical soil treatments. Foliage mass was primarily affected by needle age and season, while treatment effect was relatively minor. Overall mean foliage mass per tree increased from 734 g in April to 870 g in August, and then decreased to 595 g in November. In general, proportion of current needles to the foliage grew from zero in April to more than 50% in late November. Proportion of one-year-old (c+1) needles decreased relatively slightly (from 55 to 41%), while that of two-year-old (≥c+2) needles declined from 45% in spring to less than 6% of the total foliage in autumn. Significant treatment effects comprised reduced total mass of needles, particularly current ones (Acid), increased mass of ≥c+2 needles (Lime), and a clear dominance (absolute and relative) of c+1 over ≥c+2 needles (Urea), when compare with the untreated stand (Control). Within- and between-treatment variations were generally lower in the case of relative proportions than absolute values of cohort biomass. In most plots, more than half of needles shed over the entire study period were ≥c+2, while current needles contributed about 10% to the needle fall. In contrast to other plots, composition of needle fall at the Urea treatment was shifted toward a greater contribution of younger needles.

Relation:

Polish Journal of Ecology

Volume:

50

Issue:

3

Start page:

371

End page:

380

Resource Identifier:

oai:rcin.org.pl:121275 ; ISSN 1505-2249

Source:

MiIZ PAN, call no. P.2840 ; click here to follow the link

Language:

eng

Language of abstract:

Rights:

Creative Commons Attribution BY 3.0 PL license

Terms of use:

Copyright-protected material. [CC BY 3.0 PL] May be used within the scope specified in Creative Commons Attribution BY 3.0 PL license, full text available at: ; -

Digitizing institution:

Museum and Institute of Zoology of the Polish Academy of Sciences

Original in:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Projects co-financed by:

Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.

Object collections:

Last modified:

Apr 21, 2020

In our library since:

Apr 21, 2020

Number of object content hits:

3

All available object's versions:

https://rcin.org.pl/publication/91500

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