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Matti Leikola (email)

Metsikkösadannan määrä eräässä hoidetussa männikössä.

Leikola M. (1971). Metsikkösadannan määrä eräässä hoidetussa männikössä. Silva Fennica vol. 5 no. 2 article id 4842. https://doi.org/10.14214/sf.a14644

English title: Throughfall in a managed Scots pine stand in Southern Finland

Abstract

The purpose of the study was to measure the throughfall in a managed Scots pine (Pinus sylvestris L.) stand in Southern Finland (61°47’, 24°18’). Totally 20 summer rain gauges (collecting area 100 cm2) were placed randomly in form of a lattice of 100 squares, each 2x2 m. Six rain throughs, 15 cm x 150 cm, were placed in the experimental stand. Auxiliary precipitation measurement was done in an opening, by using four summer rain gauges, two rain throughs and one recording rain gauge. The throughfall was followed in May–September 1967.

In comparison with summer rain gauges, the rain throughs gave too low values when the precipitation was below 3 mm/rain shower. Accordingly, only the results of rain gauges were used. The rate of throughfall was determined by the amount of precipitation and the rate of heaviness of the rain shower. When trying to describe the relative amount of throughfall by using various characteristics of the stand, the equitation proposed by Seppänen (1964) proved the best. When the rate of throughfall was depicted with the distance between the summer gauge and the nearest tree, there was negative correlation between these. The correlation was negative under heavy rains, but positive in small rains.

Various factors of uncertainty are discussed. During long periods the areas under Scots pine canopies reach more rain water than those between the canopies, which may be important when analysing the spatial distribution of ground vegetation.

The PDF includes a summary in English.

Original keywords
Etelä-Suomi; mänty; sadanta; metsikkösadanta; sademäärä

English keywords
Pinus sylvestris; Scots pine; precipitation; throughfall; rainfall

Published in 1971

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Available at https://doi.org/10.14214/sf.a14644 | Download PDF

Creative Commons License CC BY-SA 4.0

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