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<dc:title xml:lang="en"><![CDATA[A suggested method for calculating herb layer net production directly or by estimating errors of indirect methods]]></dc:title>
<dc:title xml:lang="en"><![CDATA[Sposób obliczania produkcji runa]]></dc:title>
<dc:title xml:lang="en"><![CDATA[Metodyka]]></dc:title>
<dc:title xml:lang="en"><![CDATA[Propozycja sposobu obliczania produkcji netto runa metodą bezpośrednią oraz szacowania błędów metod pośrednich]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[A suggested method for calculating herb layer net production directly or by estimating errors of indirect methods]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[Sposób obliczania produkcji runa]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[Metodyka]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[Propozycja sposobu obliczania produkcji netto runa metodą bezpośrednią oraz szacowania błędów metod pośrednich]]></dc:title>
<dc:creator><![CDATA[Aulak, Władysław]]></dc:creator>
<dc:subject xml:lang="en"><![CDATA[biological productivity]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[productivity, biological]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[ground cover plants]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[groundcover]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[runo leśne]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[produktywność biologiczna]]></dc:subject>
<dc:description xml:lang="en"><![CDATA[Pages 134-144 ; 24 cm]]></dc:description>
<dc:description xml:lang="en"><![CDATA[Bibliographical references (page 144)]]></dc:description>
<dc:description xml:lang="en"><![CDATA[Abstract in English]]></dc:description>
<dc:description xml:lang="en"><![CDATA[The author proposes a mew method for defining met production of the herb layer by analysing the production of each individual separately. Although this method, as being very laborious, is unsuitable for wide-scale application , it is useful, when simultaneous estimation is made of production by the methods hither employed, for defining the extent of errors in estimating production by the methods in general use. The method consists in placing a certain number of grids (minimum 30) in an area, which have fairly densely arranged inner parallel bars permitting of exact localization of individuals with out making it necessary for them to be permanently marked out in the area. The height of each individual is measured, each time observations are made, which takes place fairly frequently over the course of a year. At the same time samples are taken for individual weight in established classes of height (optimum every 1 cm). In this way the differences in height can be converted into difference in the individual’s biomass between two consecutive observation periods. The sum total of periodical increases gives the combined production of an individual, while the sum total of individuals of the same species permits of accurately defining the population’s production. Simultaneous estimation of production by indirect methods in general use permits of defining the errors, of these methods by comparison with the resul ts obtained by the suggested method. Recording the state of each individual every time observations are made simultaneously permits of obtaining additional data on variations in population numbers, variations in production over the yearly cycle, definition of the extent of elimination in different periods etc. Table I contains examples of errors in estimating production by certain indirect methods for 5 species based on data obtained by the direct method.]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[Strony 134-144 ; 24 cm]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[Bibliografia na stronie 144]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[Streszczenie w języku angielskim]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[The author proposes a mew method for defining met production of the herb layer by analysing the production of each individual separately. Although this method, as being very laborious, is unsuitable for wide-scale application , it is useful, when simultaneous estimation is made of production by the methods hither employed, for defining the extent of errors in estimating production by the methods in general use. The method consists in placing a certain number of grids (minimum 30) in an area, which have fairly densely arranged inner parallel bars permitting of exact localization of individuals with out making it necessary for them to be permanently marked out in the area. The height of each individual is measured, each time observations are made, which takes place fairly frequently over the course of a year. At the same time samples are taken for individual weight in established classes of height (optimum every 1 cm). In this way the differences in height can be converted into difference in the individual’s biomass between two consecutive observation periods. The sum total of periodical increases gives the combined production of an individual, while the sum total of individuals of the same species permits of accurately defining the population’s production. Simultaneous estimation of production by indirect methods in general use permits of defining the errors, of these methods by comparison with the resul ts obtained by the suggested method. Recording the state of each individual every time observations are made simultaneously permits of obtaining additional data on variations in population numbers, variations in production over the yearly cycle, definition of the extent of elimination in different periods etc. Table I contains examples of errors in estimating production by certain indirect methods for 5 species based on data obtained by the direct method.]]></dc:description>
<dc:publisher><![CDATA[Państwowe Wydawnictwo Naukowe]]></dc:publisher>
<dc:contributor><![CDATA[Polska Akademia Nauk. Komitet Ekologiczny]]></dc:contributor>
<dc:date><![CDATA[1974]]></dc:date>
<dc:type xml:lang="en"><![CDATA[Text]]></dc:type>
<dc:type xml:lang="pl"><![CDATA[Tekst]]></dc:type>
<dc:identifier><![CDATA[ISSN 0013-2969]]></dc:identifier>
<dc:identifier><![CDATA[https://rcin.org.pl/miiz/dlibra/publication/105704/edition/147214/content]]></dc:identifier>
<dc:identifier><![CDATA[oai:rcin.org.pl:147214]]></dc:identifier>
<dc:source xml:lang="en"><![CDATA[MiIZ PAN, call no. P.3259]]></dc:source>
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<dc:source xml:lang="pl"><![CDATA[MiIZ PAN, sygn. P.3259]]></dc:source>
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<dc:language><![CDATA[pol]]></dc:language>
<dc:relation><![CDATA[Wiadomości Ekologiczne]]></dc:relation>
<dc:relation><![CDATA[Aulak W. 1974 — Błędy metod szacowania produkcji runa leśnego opartych na stanach biomas — Wiad. ekol. 20: 47—56.]]></dc:relation>
<dc:relation><![CDATA[Falińska K. 1969 — Produkcja nasion wybranych gatunków runa różnych postaci grądu (Querco-Carpinetum) w Białowieskim Parku Narodowym — Acta Soc. Bot. Pol. 38: 195—203.]]></dc:relation>
<dc:relation><![CDATA[Odum E.P. 1960 — Organic production and turnover in old field succesion —Ecology, 41: 34—49.]]></dc:relation>
<dc:relation><![CDATA[Traczyk T. 1967 — Propozycja nowego sposobu oceny produkcji runa — Ekol. Pol. B, 13: 241—247.]]></dc:relation>
<dc:relation><![CDATA[oai:rcin.org.pl:publication:105704]]></dc:relation>
<dc:rights xml:lang="en"><![CDATA[Creative Commons Attribution BY 3.0 PL license]]></dc:rights>
<dc:rights xml:lang="pl"><![CDATA[Licencja Creative Commons Uznanie autorstwa 3.0 Polska]]></dc:rights>
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