Détail de l'auteur
Auteur Wanda Bacieczko |
Documents disponibles écrits par cet auteur (1)
Affiner la recherche
Ecological characteristics of Polygonum polystachyum population in north-western poland (West pomerania : niepolcko) / Wanda Bacieczko in Polish journal on natural sciences, 30 (1) (2015)
[article]
Titre : Ecological characteristics of Polygonum polystachyum population in north-western poland (West pomerania : niepolcko) Type de document : Électronique Auteurs : Wanda Bacieczko ; Agnieszka Borez ; Emilia Kaszycka Année de publication : 2015 Article en page(s) : 35-46 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Plantes subspontanées, naturalisées, envahissantes Mots-clés : Polygonum polystachyum C.F.W.Meissn., 1832 Résumé : This paper presents the results of the study conducted on the Polygonum polystachyum population located in a manor park in Niepołcko (West Pomerania). This species in Poland has been recorded only in 11 localities so far, most of which are situated in the south of the country. The aim of the investigation was to identify the current status and edaphic conditions of the P. polystachyum population, as well as to recognize its selected inter-individual and group attributes. Number of specimens, their density per 1 m2 , and mean crowding was determined. Also the population’s type of spatial structure was identified through observation and by calculation of the dispersion coefficient. On the basis of the conducted research it was found that the investigated population numbers 609 specimens and it currently occupies the area of 38 m2 . It has clustered spatial distribution type (dispersion coefficient>1) and is characterized with high value of mean shoot density, which amounts to 27.8 spec./1 m2 (max. 38 spec./1 m2 ). On the basis of the investigation of biometric attributes of 50 randomly selected specimens, it was found that shoots of P. polystachyum achieve the height from 163 to 222 cm, and width from 6.0 mm (lower height specimens) to 19.5 mm (taller specimens). Mean length of the examined bottom and top leaves is respectively 25.4 and 24.1 cm, while their mean width achieves 7.5 and 7.2 cm. The number of the inflorescence primary branches has the highest value of the coefficient of variation (V= 75.5%), whereas the height of the specimens has the lowest one (V=7.4%). Conducted correlation analysis revealed that there is a statistically significant positive correlation between the width of P. polystachyum shoots and the length of the leaves from the top of the stem (rs =0.949367). On the basis of the conducted chemical analysis of the soil from the P. polystachyum habitat, the substrate was classified as alkaline soil (pH = 7.1), with low total nitrogen content (0.26%), as well as low organic carbon content (2.8%). Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142818
in Polish journal on natural sciences > 30 (1) (2015) . - 35-46Bacieczko, W., Borez, A., Kaszycka, E. 2015. Ecological characteristics of Polygonum polystachyum population in north-western poland (West pomerania : niepolcko). Polish journal on natural sciences, 30(1): 35-46.Documents numériques
Consultable
Article (2015)Adobe Acrobat PDF