Airborne remote sensing for forest inventory attributes assessment: experience of Flying Laboratory of Imaging Systems (FLIS) in the Czech Republic

In the Czech Republic, the silver birch (Betula pendula Roth.) is considered as a pioneer and a soil preparing tree species. It occurs mainly on clearcutting areas after disturbances. The aim of this study was to fit breast height diameter increment model for birch with respect to tree age, share of birch trees and forest site type (ecological series – ES and forest vegetation zones – FVZ). We used data of both cycles of National Forest Inventory of the Czech Republic. We evaluated production potential of this species. We tested Korf and Michailoff increment models in variant of nonlinear least squares model (NLS) and nonlinear mixed effects model (NLME). Michailoff models performed better. We found seven statistically significant and practically applicable models. The greatest influence on increment of diameter at breast height have forest vegetation zone and ecological series whereas the influence of the share of birch in forest stand is smaller. The highest absolute values of diameter increment were on gleyed or enriched with water sites in the fourth forest vegetation zone.

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Comparison Study to the Use of Geophysical Methods at Archaeological Sites Observed by Various Remote Sensing Techniques in the Czech Republic

Geosciences ◽

10.3390/geosciences7030081 ◽

2017 ◽

Vol 7 (3) ◽

pp. 81 ◽

Cited By ~ 7

Author(s):

Roman Křivánek

Keyword(s):

Remote Sensing ◽

Czech Republic ◽

Geophysical Methods ◽

Archaeological Sites ◽

Comparison Study ◽

The Czech Republic ◽

Remote Sensing Techniques

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Production of Douglas-Fir in the Czech Republic based on national forest inventory data

Journal of Forest Science ◽

10.17221/48/2013-jfs ◽

2013 ◽

Vol 59 (No. 10) ◽

pp. 398-404 ◽

Cited By ~ 5

Author(s):

V. Podrázský ◽

R. Čermák ◽

D. Zahradník ◽

J. Kouba

Keyword(s):

Czech Republic ◽

Tree Species ◽

Forest Inventory ◽

National Forest Inventory ◽

Douglas Fir ◽

National Forest ◽

Northern Red Oak ◽

Forest Land ◽

Land Area ◽

The Czech Republic

This article summarizes basic estimates of productivity and trend analysis of one of the principal introduced forest tree species in the Czech Republic, i.e. Douglas-fir (Pseudotsuga menziesii [Mirbel] Franco). As a comparison, we also examine grand fir (Abies grandis [D. Don] Lindl), northern red oak (Quercus rubra L. syn. Quercus borealis Michx.) and black locust (Robinia pseudoacacia L). This paper presents estimates of forest land area, standing volume, annual and total increments, distribution of age classes, average ages and site indexes for the period 1979–2010. All data were obtained from the national forest inventory of the Czech Republic. Korf’s growth function was used for the assessment of current and mean annual increments (CAI, MAI) of Douglas-fir compared to other tree species. Our results suggest a decline in the annual area afforested by Douglas-fir, as influenced by the State administration management choices, a low rate of an increase in the forest land area, increasing average age of the forests. On the other hand, we observed a dramatic increase in the standing volume as well as high annual increments in volume. Douglas-fir is the most productive major tree species in the Czech Republic and there is a great potential to expand its use throughout the country.

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Land category in the National Forest Inventory of the Czech Republic

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis ◽

10.11118/actaun201058050223 ◽

2010 ◽

Vol 58 (5) ◽

pp. 223-232

Author(s):

Miloš Kučera

Keyword(s):

Czech Republic ◽

Forest Inventory ◽

National Forest Inventory ◽

National Forest ◽

Special Focus ◽

Land Classification ◽

The Czech Republic ◽

Definition Of

The article deals with the land categorization with special focus on the definition of category FOREST in the National Forest Inventory of the Czech Republic (NFI CR). Definitions of land categories used in the first cycle of forest inventory in 2001–2004 are evaluated. The first task is to assess the appropriateness of existing land categorization and definition of category FOREST in terms of suitability of used parameters defining individual categories and their values. Their compatibility with international definitions of category FOREST is also assessed. The second task is, based on data from the first cycle of NFI CR, to calculate the area of category FOREST according to the international definition of European National Forest Inventory Network (ENFIN) and to determine whether the area of category FOREST is the same or varies from the area according to the definition FOREST defined in NFI CR.In the first part there is a list of used land classifications in the Czech Republic and there are also described used international classifications. Land categorization and definitions according ENFIN are presented. Further the parameters are chosen in the national definition of NFI CR, which are compared with analogous parameters defined by ENFIN, indicating differences. Subsequently, the area of category FOREST is calculated according to the parameters of national definition and ENFIN definition. Finally, suggestions are given for the land classification into categories for the second cycle of NFI CR, including the appropriate parameters and their values for the definition of category FOREST. Possible ways of their implementation into the methodology of NFI CR are listed.

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Regeneration and game damage in the Krušné hory Mts. assessed on the basis of National Forest Inventory of the Czech Republic

Journal of Forest Science ◽

10.17221/99/2008-jfs ◽

2009 ◽

Vol 55 (No. 6) ◽

pp. 279-292 ◽

Cited By ~ 1

Author(s):

L. Lehnerová ◽

R. Marušák

Keyword(s):

Czech Republic ◽

Forest Inventory ◽

National Forest Inventory ◽

Recent Measurement ◽

National Forest ◽

Measurement Standard ◽

The Czech Republic ◽

Standard Methodology ◽

Extensive Information ◽

Information Database

In 2001–2004 National Forest Inventory was realized in the Czech Republic. A great number of variables was measured giving rise to an extensive information database that can be used to assess the state and development of various quantitative and qualitative dendrometric characteristics. This work presents the results of regeneration state and game damage in the Krušné hory Mts. based on the data from both the National Forest Inventory and the second enlarged measurement carried out after five years that was done in a part of the Fláje preserve and enabled basic comparison with the rest of the area. For the calculation of data acquired in the old and recent measurement standard methodology for processing National Forest Inventory was used. Comparison of data showed that the average number of regeneration individuals dropped by more than a third in the interval of 5 years, as well as the number of plots with regeneration; game damage of regeneration also was lower by 4%. The proportion of individuals damaged by peeling did not change during the investigated period. A significant increase in game damage to regeneration was found in the Fláje preserve.

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Development of drainage system in the Czech landscape – identification and functionality assessment by means of remote sensing

European Countryside ◽

10.1515/euco-2017-0005 ◽

2017 ◽

Vol 9 (1) ◽

pp. 77-98 ◽

Cited By ~ 1

Author(s):

Lenka Tlapáková

Keyword(s):

Remote Sensing ◽

Czech Republic ◽

New Technologies ◽

Drainage System ◽

Point Of View ◽

Natural Habitats ◽

The Czech Republic ◽

Drainage Systems ◽

Landscape Characteristics ◽

Czech Society

Abstract Subsurface drainage systems are very important type of meliorative measures in the Czech Republic. Nevertheless, their functions are perceived differently in the Czech society. We can distinguish point of view of landowner, farmer, water manager or environmentalist. With regard to the climatic changes or new praxis of agricultural, there must be assessed changed conditions in relation to existing drainage systems. It has connection with the next strategy of their funding and management. Therein, in the Czech Republic, farmer has dominating position, instead of the state or landowner that would be probably more correct.The paper presents results of user demands survey, conditions of drainage systems, their services and defects. New technologies, mainly remote sensing, and their use for identification and survey of drainage systems are presented too. Land drainage measures changed the whole landscape in the Czech Republic (agricultural intensification, loss of natural habitats and natural water flows etc.). In context of hydrological extremes′ rising and drainage systems′ ageing, existence of drainage systems must be solved. It means their maintainance for purpose of agricultural production, or, on the contrary, their elimination with the view of nature habitats′ recovery. Both solutions must differ in accordance with the different landscape characteristics of the Czech Republic.

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