Wpływ wybranych cech drzewostanu na pracochłonność dwóch metod jesiennych poszukiwań szkodników pierwotnych sosny zwyczajnej (Pinus sylvestris L.)

Piotr Bilański , Jerzy Kasprzak

Abstract

The study was conducted in the Leżajsk Forest District in October 2009. In ten Forests Ranges, the two control areas has been randomly selected, where is carried out every year autumn primary pest search of Scots pine. In these control areas were measured the time it takes to search litter and mineral soil, by a new method of ten sample plots and by an old method area of projection of the average crown. The time taken ten sample plots for each permanent research areas also measured. In order to calculate the horizontal projection area of the average tree crown, formula for the area of a circle was used. The diameter of the circle assumed the average value of the measurements with a tape measure the width of the longer and shorter crown projection. Then, the work consisted in addition to the results of field research on the characteristics of stands, as the degree of surface coverage by undergrowth and underbrush, on the basis of the Forest Management Plan for Leżajsk Forest District [2001]. The degree of complexity of work for each area of control are based on the development of “Directory of time standards for forest” [2004]. The results allow to conclude that the average time required to search the control area, did not differ significantly in both methods. Introduced a new method of ten sample plots did not significantly affect the change effort in the search for the primary pest of pine. In the stands, where the crown projection area average was less than about 6.7 m2 , the old method was less labor-intensive, while the other stands less work required method of ten sample plots. Lush undergrowth and underbrush occurring in the stand affects the length of time needed to determine the ten sample plots in the new method of searching pine folivore. The time it takes to search batch control in the method area of projection of the average crown is dependent on the size of the test tree crown. In the case of the ten methods of sample plots in time to be devoted to the search area controls, is directly dependent on the degree of difficulty forestry work.
Author Piotr Bilański (FoF / DoFPFEaC)
Piotr Bilański,,
- Department of Forest Protection, Forest Entomology and Climatology
, Jerzy Kasprzak (FoF / DoFPFEaC)
Jerzy Kasprzak,,
- Department of Forest Protection, Forest Entomology and Climatology
Other language title versionsThe effect of seleced characteristics stand on effort of two methods autumn primary pest search of Scots pine (Pinus sylvestris L.)
Pages303-313
Publication size in sheets0.5
Book Ząbecki Wojciech (eds.): Rola i udział owadów w funkcjonowaniu ekosystemów leśnych, 2013, Wydawnictwo Uniwersytetu Rolniczego, ISBN 978-83-60633-92-2, 349 p.
Keywords in Polishszkodniki pierwotne, poszukiwanie, pracochłonność, sosna zwyczajna
Keywords in Englishprimary pests, search, effort, Scots pine
Abstract in PolishCelem pracy było porównanie pracochłonności dwóch metod, metody podokapowej i metody dziesięciu powierzchni próbnych, na stałych partiach kontrolnych, stosowanych podczas jesiennych poszukiwań szkodników pierwotnych, zimujących w ściole i glebie mineralnej pod okapem drzewostanów sosnowych lub wielogatunkowych z przewagą sosny o różnych cechach. Badania przeprowadzono na terenie Nadleśnictwa Leżajsk w październiku 2009 roku. W dziesięciu leśnictwach, wytypowano losowo po dwie partie kontrolne, na których co roku przeprowadza się jesienne poszukiwania szkodników pierwotnych sosny. Otrzymane wyniki pozwalają stwierdzić, iż średnia wartość czasu, potrzebnego do przeszukania partii kontrolnej, nie różniła się istotnie w obu metodach, zatem wprowadzona nowa metoda dziesięciu powierzchni próbnych nie wpływa znacząco na zmianę pracochłonności przy poszukiwaniach szkodników pierwotnych sosny zwyczajnej.
Internal identifierWL/M/26/2013; WL/6/18
Languagepl polski
Score (nominal)5
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