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THE STATE OF SPRUCE (Picea abies Karst.) STANDS HEALTH IN BESKID
ŚLĄSKI MTS.
THE STATE OF SPRUCE (THE STATE OF SPRUCE (Picea abiesPicea abies Karst.Karst.) STANDS HE) STANDS HEAALTH IN BESKID LTH IN BESKID
ŚŚLLĄĄSKI MTSSKI MTS..
44--5 December 2008, Oravsk5 December 2008, Oravskáá PolhoraPolhora
PawePawełł
StrzeliStrzelińńskiski1)1), Anna Wierzbicka, Anna Wierzbicka2)2), Grzegorz R, Grzegorz Rąączkaczka1)1), , Andrzej WAndrzej Węęgielgiel1)1), Magdalena Main, Magdalena Main3)3), Patrick Hostert, Patrick Hostert3)3)
1)1)Department of Forest Management, Department of Forest Management, Poznan University of Life SciencesPoznan University of Life Sciences22))Department of Department of GameGame
ManagementManagement
and Forest Protectionand Forest Protection, Poznan University of Life Sciences, Poznan University of Life Sciences3)3)Geomatics Department, Institute of Geography, HumboldtGeomatics Department, Institute of Geography, Humboldt--UniversitUniversitäät zu Berlint zu Berlin
Main aim of the research:•
Estimating health of spruce stands in the Beskidy Mts.
in
terms of quantity and quality•
forecasting changes of health
status of the stages
The research was conducted as part of Magdalena Main’s doctoral dissertation ‘Monitoring i modelling of regeneration capabilities of a forest damaged by industrial emisions –
a
study based on satellite images of Beskid Śląski’.
Aim and scope of the research:Aim and scope of Aim and scope of the the resereseaarch:rch:
Research areaResearch areaResearch area
WĘGIERSKA GÓRKA Forest District
UJSOŁY Forest District
Selected research plots had to meet the following requirements:
•
species composition: a pure stand of spruce•
age: 60-120 years old
•
height: 600-1300 m above sea level•
various exposure and slope factors
•
various damage factors
From among all suitable plots, 77 were randomly selected, with:
•
32 plots in Węgierska Górka Forest District,•
45 plots in Ujsoły Forest Distric.
Three measurement points were established in each plot, resulting in 231 points in total.
ScopeScopeScope
Scope of worksScope of worksScope of works
Field works in the summer of 2006: •
instrumental measurements of the Leaf Area Index (LAI) by means of a direct measurement
•
taking hemispheric pictures•
measuring trees’
height and dhb within selected
measurement points•
determining the degree of defoliation
•
determining needle decolourization•
determining canopy cover
•
describing underwoods and undergrowth
Scope of worksScope of worksScope of works
Scope of worksScope of worksScope of works
Canon EOS 20D + Canon EF-S 18-55/3,5-5,6 + convertor Raynox DCR-CF 185PRO.
(photo. Alexander Damm)
LAI-2000 Plant Canopy Analyzer. (photo. P. Strzeliński, A. Damm)
Satellite pictures were obtained for the research area, including:
•
Landsat TM,
1987 and 2005•
QuickBird, 2006
and the SILP database.
By analyzing the pictures, •
NDVI (Normalized Differenced Vegetation Index)
•
NDMI (Normalized Difference Moisture Index)were determined for the two periods.
Scope of worksScope of worksScope of works
Field observations and the data in the SILP database helped classify the Landsat TM 2005 imaging.
A ‘coniferous forest’
class was determined, being the spruce stand. It comprises five subclasses with regard to the degree of damage:
I –
healthy II –
minor damage
III –
medium damageIV –
strong damage
V –
dying. Trees were assessed according to the percentage of
defoliation and decolourization, and degree of canopy cover.
Scope of worksScope of worksScope of works
Outcomes: Toxic industry emissions until 1990th intensified environment pollution and degradation of vegetation in CEECData: Late summer Landsat images lead to severe problem with atmospheric correction – strong topography influenceChange analysis: NDMI may be a better vegetations indices as NDVI for spruce forest change detectionDamage grade analysis: Monoculture spruce forest stands in Polish Beskidy Mtn. represented mostly in III and IV damage gradeVerification: Field measurements and Forest GIS information are irreplaceable as a verification-tools.
ResultsResultsResults
Forest cover change map Forest cover change map (1987(1987--2005)2005)
Forest damage grade mapForest damage grade map
Paweł
STRZELIŃSKI, PhDGrzegorz RĄCZKA, PhDAndrzej WĘGIEL, PhD
Department of Forest Managementul. Wojska
Polskiego
71 C60-625 Poznań, POLAND
e-mail: [email protected]: [email protected]
e-mail: [email protected]
Anna Wierzbicka, MScDepartment of Game Management and Forest Protection
ul. Wojska
Polskiego
71 C60-625 Poznań, POLAND
e-mail: [email protected]
Magdalena MAIN, PhDProf. Patrick HOSTERTGeomatics Department
Unter den Linden 610099 Berlin, GERMANY
e-mail: [email protected]: [email protected]
AuthorsAuthorsAuthors
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