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Wyszukujesz frazę "height growth" wg kryterium: Temat


Tytuł:
Aktywność etefonu, trineksapaku etylu i chlorku chloromekwatu w zależności od sposobu ich aplikacji w odmianach żyta ozimego
Activity of etephon, trinexapac ethyl and chlorocholine chloride depending on application method in cultivars of winter rye
Autorzy:
Matysiak, Kinga
Sekutkowski, Tomasz
Kaczmarek, Sylwia
Powiązania:
https://bibliotekanauki.pl/articles/2198139.pdf
Data publikacji:
2011-09-30
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
chlorofil
regulatory wzrostu
regulatory rozwoju
wyleganie
wysokość roślin
żyto heterozyjne
żyto populacyjne
chlorophyll
hybrid winter rye
lodging
plant growth regulators
plant height
traditional winter rye
Opis:
Etefon, trineksapak etylu i chlorek chloromekwatu są popularnie stosowanymi retardantami wzrostu w uprawie zbóż. Obok działania retardacyjnego (hamowania wzrostu elongacyjnego pędu), a tym samym ochrony roślin przed wyleganiem, charakteryzuje je także znaczny wpływ na procesy rozwoju roślin. Celem badań była ocena wpływu trineksapaku etylu, etefonu i chlorku chloromekwatu stosowanych w mieszaninach i w zabiegach sekwencyjnych. Badania polowe prowadzono w Instytucie Ochrony Roślin, w latach 2008–2010. Do doświadczeń wybrano dwie odmiany żyta ozimego: odmianę populacyjną — Dańkowskie Diament i odmianę heterozyjną – Visello. W doświadczeniach stosowano regulatory wzrostu i rozwoju roślin: trineksapak etylu (Moddus 250 EC), chlorek chloromekwatu (Antywylegacz płynny 675 SL) i etefon (Cerone 480 SL). Retardanty stosowano w mieszaninach (zabieg w fazie BBCH 31 rośliny uprawnej) lub w zabiegach sekwencyjnych (I zabieg w fazie BBCH 31, II zabieg w fazie BBCH 37). Mieszaniny stosowano w kombinacjach: trineksapak etylu + chlorek chloromekwatu oraz trineksapak etylu + etefon. W wariancie zabiegów sekwencyjnych stosowano: trineksapak etylu (I zabieg) i chlorek chloromekwatu (II zabieg) oraz trineksapak etylu (I zabieg) i etefon (II zabieg). W doświadczeniach oceniano wysokość roślin, wyleganie, zawartość chlorofilu w liściu podflagowym, liczbę źdźbeł kłosonośnych na jednostce powierzchni, masę 1000 ziaren, liczbę ziaren w kłosie, plon, gęstość ziarna w stanie zsypnym, wilgotność ziarna oraz zawartość białka i skrobi w ziarnie. Poszczególne lata badań charakteryzowały odmienne warunki pogodowe. Zaobserwowano znaczne różnice w podatności odmianowej na badane substancje oraz sposób ich aplikacji.
Etephon, chlorocholine chloride and trinexapac-ethyl are plant growth regulators commonly used in cereals. Besides stem elongation inhibition and lodging prevention they strongly affect many processes of plant growth and development. Scientific literature confirms that they influence the photosynthesis through enhancing of chlorophyll content in plant leaves. Under favorable conditions they can enhance weight of 1000 grains, number of grain per ear and yield, even in the absence of lodging. Activity of plant growth regulators is strongly connected with weather conditions during a vegetation season. The aim of experiments was to evaluate the influence of trinexapac-ethyl, chlorocholine chloride and etephon on diploid (traditional) and hybrid winter rye. The plant growth regulators were used in two variants: mixtures trinexapac-ethyl + chlorocholine chloride or trinexapac-ethyl + etephon. The second variant of application was trinexapac-ethyl in a growth stage BBCH 31 and chlorocholine chloride in BBCH 37 or trinexapac-ethyl in BBCH 31 and etephon in a growth stage BBCH 37. Field trials were conducted in the years 2008–2010 in Plant Protection Institute in Poland. The experimental design was a randomized complete block containing four replications. In field trial the following parameters were estimated: plant height, chlorophyll content, lodging, weight of 1000 grains, number of grains per ear, yield, grain density, starch content, protein content and grain humidity. Results show different response of two cultivars of winter rye to the applied plant growth regulators.
Źródło:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin; 2011, 260/261; 273-283
0373-7837
2657-8913
Pojawia się w:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza faz wzrostu wysokości buka pospolitego rosnącego w drugim piętrze drzewostanów bukowo-sosnowych
Analysis of height growth phases for beech growing in the lower storey of beech-pine stands
Autorzy:
Dudzińska, M.
Powiązania:
https://bibliotekanauki.pl/articles/1008813.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany bukowo-sosnowe
drugie pietro drzewostanu
drzewa lesne
buk zwyczajny
Fagus sylvatica
fazy wzrostu
przyrost drzew
przyrost wysokosci
przyrost biezacy
przyrost przecietny
wiek kulminacji przyrostu
height growth phases
periodic annual increment
mean annual increment
height increment culmination
second storey
fagus sylvatica−pinus sylvestris l. stands
Opis:
The study focused primarily on the analysis of the periodic annual and mean annual increment and on the recognition of the growth phases for beech growing in the lower storey of beech−pine stands. The empirical material collected from 12 beech−pine stands located in the territory of the Miłomłyn and Stare Jabłonki Forest Districts was used for the study. The height increment of the beech trees from the second storey of beech−pine stands under study culminated earlier than the height increment of the beech trees from pure, one−storied stands. The beech trees growing in the second storey are also characterised by a shorter juvenile phase.
Źródło:
Sylwan; 2012, 156, 06; 420-426
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of growth and increment in height of common oak (Quercus robur L.)
Analiza wzrostu i przyrostu wysokości dębu szypułkowego (Quercus robur L.)
Autorzy:
Kazmierczak, K.
Pazdrowski, W.
Manka, K.
Szymanski, M.
Nawrot, M.
Powiązania:
https://bibliotekanauki.pl/articles/9717.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Katedra Zastosowań Matematyki i Informatyki
Tematy:
common oak
oak
Quercus robur
plant growth
growth curve
tree
increment curve
height
variation coefficient
correlation coefficient
linear regression
multiple regression
Źródło:
Colloquium Biometricum; 2008, 38
1896-7701
Pojawia się w:
Colloquium Biometricum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of growth traits and qualitative indices for selection of Scots pine (Pinus sylvestris L.) elite trees. A case study from Volyn region, western Ukraine
Autorzy:
Voitiuk, Vasyl
Andreieva, Valentyna
Kychyliuk, Oleksandr
Hetmanchuk, Anatolii
Klisz, Marcin
Mohytych, Vasyl
Powiązania:
https://bibliotekanauki.pl/articles/2041521.pdf
Data publikacji:
2020
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
tree breeding
half-sib families
progeny tests
DBH
height growth
Opis:
Since the plus trees are selected based on phenotype, it is necessary to evaluate them in progeny test. The aim of this study is an indication of selecting elite mother trees based on the results from half-sib progeny test trials. As study sites, two Scots pine half-sib progeny tests were selected. During evaluation, the progenies had reached the age of 38 and 40 years, respectively. In both progeny trials, quantitative parameters and qualitative traits of Scots pine half-sib progenies were investigated. Based on these data, complex evaluation of half-sib families was carried out. We concluded that, Scots pine progenies at the age of 38 and 40 years in fresh and moist mixed forests are characterised by acceptable quality, with the survival being 25%–33% per progeny test trial. Based on a complex evaluation of 38- and 40-year-old half-sib progenies of plus trees, we proposed to select 31% of tested plus/mother trees as candidates for elite trees. Further, the list of candidates for elite trees was created with five plus trees from the Volyn region (26% of the total tested from the region) and four plus trees from the Lviv region (40% of the total tested from the region). With age, the share of the best and undesirable trees decreases, while the proportion of intermediate trees increases in both control trees and half-sib progenies. At the age of 38 and 40 years, the proportion of fast-growing offspring was from 0% to 36%, while the declining trend that was observed in previous years was being continued. Thus, due to the declining trend in the proportion of fast-growing offspring observed at the age of 38 and 40 years, we propose to select candidate trees for an elite group not early than after 40 years of test their progenies.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2020, 62, 3; 199-209
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the height growth of Picea abies as related to the geographical regions of Krutzsch (IPTNS-IUFRO 1964-68, years 1969-1988)
Autorzy:
Sabor, J
Stanuch, H.
Powiązania:
https://bibliotekanauki.pl/articles/41503.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
provenance
genetic reactivity
selection value
height growth
geographic region
Beskid Sadecki Mountains
plant population
spruce
species range
Opis:
The juvenile height growth of Norway spruce (Picea abies (L.) Karst.) was studied in 1095 spruce provenances included in the IUFRO inventory provenance test of 1964/68. Trees growing on the experimental site established in Krynica in the Beskid Sądecki Mts. (Carpathians) were measured at ca. 3-year intervals in the period 1969-1988, from the age of 6 years (i.e. 2 years of planting) to 25 years. The variability of tree height in this spruce population was assessed on the basis of the means expressed in units of standard deviation, calculated for each provenance and each geographical region of Krutzsch in successive years of measurement. Using the standardised units made it possible to characterise the dynamics of spruce growth in provenances from 95 geographical regions representing the whole European range of the species. The effects of geographical region, tree age and their interaction on the variability of height growth within this range were estimated using multi-way analysis of variance with replicated measurements. The regions showing similar spruce growth trends were grouped by using hierarchical cluster analysis. The results on the juvenile dynamics of height growth showed that spruce provenances from various geographical regions of Krutzsch differ significantly in their genetic reactivity. Based on this, several groups of regions were identified: (1) regions with average or weak but stable spruce growth characterised by no significant effects of age or genotype × age interaction in the whole measuring period, or regions with height growth improving with age; (2) regions of spruce provenances constituting a selection elite, with very good height growth in the whole measuring period or in its later part, characterised by no G × A interaction; (3) regions with varied genetic reactivity of height growth dynamics in the juvenile period, and regions of Scandinavian populations with poorest height growth in the whole measuring period. The studies proved that spruce provenances from the regions of Štiavnické Pohorie, Low Tatras (Slovakia), Masurian Lakeland, Augustów Lakeland, Podlasie, Silesian Beskid Mts., Beskid Żywiecki Mts. (Poland), Jutland (Denmark), Bihor Mts., Transylvania, and Eastern Carpathians (Romania) have a high selection value.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka pędu głównego dojrzałej olszy czarnej (Alnus glutinosa (L.) Gaertn.)
Main shoot characteristics in the mature black alder (Alnus glutinosa (L.) Gaertn.)
Autorzy:
Dmyterko, E.
Powiązania:
https://bibliotekanauki.pl/articles/1026549.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
przyrost wysokosci
lesnictwo
olsza czarna
pedy glowne
Alnus glutinosa
przyrosty roczne
drzewa lesne
main shoot
height increment
height growth rate
alnus glutinosa
Opis:
A comparative analysis was made for different measures of location and variation in height increment of the main stem of the mature black alder from the north−eastern region (N) and two southern regions (S1 and S2) of Poland. Correlation was found between annual height increment and tree age and height, as well as the number of the nodes along the shoot and the length of the internode. It was demonstrated that the trees producing long shoots in a given year would produce long shoots also in the successive years.
Źródło:
Sylwan; 2003, 147, 08; 11-18
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka pędu głównego i jego ugałęzienia u sosny zwyczajnej (Pinus sylvestris L.), rosnącej na terenie Nadleśnictwa Olkusz
Autorzy:
Bruchwald, A.
Dmyterko, E.
Dudzińska, M.
Kluziński, L.
Powiązania:
https://bibliotekanauki.pl/articles/1022202.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
ugalezienie
Nadlesnictwo Olkusz
sosna zwyczajna
lesnictwo
pedy glowne
Pinus sylvestris
drzewa lesne
pinus sylvestris
industrial emissions
height growth
number of branches
site index
Opis:
Decrease in emission of harmful gases and dusts in industrialised regions of Poland triggered improvement of forest health. Results of research dealing with pine stands in the Olkusz Forest District prove that. It was shown that number of side shoots growing out in the whorl rose up to 4−5. Trees developed height increment over two times higher than the model one and as a result height growth rate increased. Examined stands moved to the higher site index class during last 25 years. The need of further research on growth processes of trees being under anthropogenic influence was emphasised.
Źródło:
Sylwan; 2005, 149, 03; 3-11
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic site index model and trends in changes of site productivity for Alnus glutinosa (L.) Gaertn. in southern Poland
Autorzy:
Socha, Jarosław
Ochał, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/956987.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
height growth model
height-age relationship
forest site
evaluating site productivity
alder
Opis:
Black alder is naturally widespread across all of Europe and has an increasing importance for forest ecosystems. Thanks to the considerable tolerance to adverse climatic and edaphic environmental conditions black alder is important both in open landscapes and can also be involved in the rehabilitation of disturbed soils. Assessment of site productivity is essential for providing a frame of reference for silvicultural diagnosis and prescription in order to ensure the sustainability of existing and newly established ecosystems. The most accepted method of evaluating site productivity is the site index (SI). The aim of the presented research was to develop the SI model for black alder in southern Poland. The developed SI model was used as a tool in order to test the research hypothesis assuming the increase in site productivity for black alder in southern Poland. The research material for development of SI model were stem analysis data from 180 research plots. Both, the local model parameter, which was estimated individually for every tree, and the other parameters estimated globally for the whole data set were estimated simultaneously. Changes in site productivity were analyzed on research plots and a set of 12,974 stands from the forest inventory database. Site indices calculated using the developed model are negatively correlated with age/ positively correlated with establishment year of the stands. This confirms the existence of the phenomenon of increasing site productivity for black alder. During the last century site productivity measured with site index increased on average 5 m. Therefore, black alder that belongs to the fast-growing tree species should be considered of the increasing importance for forest management.
Źródło:
Dendrobiology; 2017, 77; 45-57
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamiczne krzywe bonitacyjne dla drzewostanów sosnowych Puszczy Niepołomickiej
Dynamic site index curves for Scots pine stands in Niepolomice Primeval Forest
Autorzy:
Socha, J.
Orzeł, S.
Powiązania:
https://bibliotekanauki.pl/articles/973666.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewostany sosnowe
krzywe bonitacyjne
leśnictwo
Puszcza Niepołomicka
bonitacja drzewostanów
site index model
base−age invariant
height growth
Pinus sylvestris L.
Opis:
The aim of the research was to evaluate, under the conditions of the Niepołomice Primeval Forest, the usefulness of site index models applied in forest practice in Poland and to develop a local system of site index curves for Scots pine. The research materials included measurement results for the trees growing on 74 circular, 0.05 ha sample plots. On the basis of the completed analyses, the age−related change in stand heights in the Niepołomice Primeval Forest is different than the height growth described by means of the site index models used in forest practice in Poland. As a result of several−stage analyses, a dynamic system of site index curves was developed for the Niepołomice Primeval Forest allowing calculation of the site index, as well as forecast of the height of stands at any age.
Źródło:
Sylwan; 2011, 155, 05; 301-312
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamiczne krzywe bonitacyjne dla sosny zwyczajnej (Pinus sylvestris L.) z południowej Polski
Dynamic site index curves for Scots pine (Pinus sylvestris L.) in southern Poland
Autorzy:
Socha, J.
Orzeł, S.
Powiązania:
https://bibliotekanauki.pl/articles/993955.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany sosnowe
bonitacja drzewostanow
sosna zwyczajna
Pinus sylvestris
krzywe bonitacyjne
Polska Poludniowa
site index model
base−age invariant dynamic equation
height growth
site productivity
Opis:
The aim of the study was to develop a site index model for Scots pine stands in southern Poland describing changes in height growth of stand's upper storey over time. The research material contained the height growth data obtained from an analysis of 189 tree stems. The collected material was used to develop the parameters of six dynamic growth equations which allowed to determine site productivity and predict changes in height growth of stands with age. Statistical criteria for assessing the accuracy of mapping empirical data and biological reasonableness were the basis of selection of the equation that best fits changes in height growth of the examined pine stands with age. The developed model can be used to predict the growth rate and determine the site index for Scots pine stands in southern Poland.
Źródło:
Sylwan; 2013, 157, 01; 26-38
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of municipal solid waste on the growth of maize (Zea mays L.)
Autorzy:
Simeon, P.O.
Ambah, B.
Powiązania:
https://bibliotekanauki.pl/articles/11002.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
municipal solid waste
plant growth
maize
Zea mays
pot experiment
greenhouse
growth parameter
plant height
leaf area
statistical analysis
Opis:
A pot experiment was conducted in the green house to determine the effect of municipal solid waste on the growth of maize (zea mays). Growth parameters of percentage emergence, plant height, leaf area and number of levers per plant were collect and subjected into statistical analysis, using ANOVA and fisher’s L.S.D. at 5 % probability level. Plant growth parameters decreased with increase in cropping cycle. Similarly, maize grown on dumpsite soils did better than the control soil samples. It show increase in plant height, leaf area and number of leaves per plant at a range of 16.82 cm to 12.87 cm, 5 to 4 and 64.69 cm to 59.88 cm for the dumpsite and control samples respectively. Soil PH, organic matter (OM), total Nitrogen (N), Phosphorus (P), Potassium (K), Calcium (Ca), Magnesium (Mg), Sodium (Na) and Effective Cat-ion Exchange Capacity (ECEC) decreased with increase in cropping cycle respectively. The Dumpsite soil sample recorded higher mean values than the control (P < 0.05). There is every indication that municipal solid waste is beneficial to plant if only proper and careful sorting and separation of hazardous waste is done.
Źródło:
International Letters of Natural Sciences; 2013, 02
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fazy wzrostu wysokości jodły pospolitej z Gór Świętokrzyskich
Height growth phases of silver fir from the Swietokrzyskie Mountains
Autorzy:
Bronisz, K.
Bijak, S.
Powiązania:
https://bibliotekanauki.pl/articles/972764.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
jodla pospolita
Abies alba
wzrost roslin
fazy wzrostu
przyrost wysokosci
Gory Swietokrzyskie
height growth
phases
silver fir
Świętokrzyskie Mountains
Opis:
The paper presents an analysis of height growth phases of silver fir from the Świętokrzyskie Mountains. Basing on bilateral relations between average and current height increments, age of their culmination and duration of main (juvenile and sprouting) phases was determined. Empirical data consisted of 61 sample trees that were subjected to the stem analysis. Juvenile stage of fir height growth lasts 30 years, while sprouting phase is quite long as it lasts 45 years on average. Mean age when analyzed trees reach the culmination of current and average height increment equals 50 and 70 years respectively. Course of height growth of fir resembles this of beech, which can be explained by shade tolerance of these species.
Źródło:
Sylwan; 2012, 156, 07; 511-517
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fazy wzrostu wysokości modrzewia europejskiego (Larix decidua Mill.)
Phases of height growth for the European larch [Larix decidua Mill.]
Autorzy:
Dmyterko, E.
Bruchwald, A.
Powiązania:
https://bibliotekanauki.pl/articles/1009432.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
dendrometria
drzewa lesne
modrzew europejski
Larix decidua
wzrost roslin
fazy wzrostu
przyrost wysokosci
przyrost biezacy
przyrost przecietny
wiek kulminacji przyrostu
height growth phases
current increment
average increment
larix decidua
Opis:
The European larch (Larix decidua Mill.) belongs to the group of trees characterised by fast height growth in the juvenile phase of its development. The paper describes the length and variation of height growth phases and the age at which the current and average height increments culminate. The empirical material comprised 178 cut trees that were analysed for their height growth. The trees were collected from the larch stands located in different regions of Poland.
Źródło:
Sylwan; 2010, 154, 12; 803-808
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth of Scots pine (Pinus sylvestris L.) on forest and former agricultural lands in Krynki Forest District
Autorzy:
Zakrzewski, J.
Leosz, K.
Jedrzejuk, A.
Powiązania:
https://bibliotekanauki.pl/articles/38651.pdf
Data publikacji:
2013
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
plant growth
height growth
radial growth
Scotch pine
Pinus sylvestris
needle parameter
forest
agricultural land
Krynki Forest District
Opis:
The paper shows differences in morphological and anatomical features of the Scots pine (Pinus sylvestris L.) growing on former agricultural and forest lands. It was found that at the same age and in the same climatic conditions Scots pines from former agricultural land had larger stem dimensions and needle sizes as compared with the trees growing on forest land. These results lead to an interesting conclusion connected with future afforestation and reforestiation in the Krynki Forest District.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2013, 55, 2
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Krzywe bonitacyjne świerka pospolitego na siedliskach górskich
Site index curves for Norway spruce on mountain habitats
Autorzy:
Socha, J.
Powiązania:
https://bibliotekanauki.pl/articles/973956.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
dendrometria
bonitacja siedliska
modele bonitacyjne
Picea abies
leśnictwo
drzewa leśne
świerk pospolity
góry
siedliska leśne
site index model
base−age invariant dynamic equation
height growth
picea abies (l.) karst.
Opis:
The aim of the study was to develop a site index model for mountain spruce stands. The research material contained the height growth data obtained from stem analysis of 95 trees. The collected material was used to calculate the parameters of four dynamic growth equations, which allowed to determine site productivity and predict height growth based on age and height of stands. The equation that best describes the height growth of the examined spruces was selected from among different solutions using statistical criteria for assessing the accuracy of fitting empirical data and biological realism. The developed model can be used to predict the height growth and determine the site index for mountain spruce stands.
Źródło:
Sylwan; 2011, 155, 12; 816-826
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł

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