Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1007/s10333-018-0657-8
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Titel (primär) Plant diversity and composition of rice field bunds in Southeast Asia
Autor Fried, O.; Kühn, I. ORCID logo ; Schrader, J.; Nguyen, V.S.; Bergmeier, E.
Quelle Paddy and Water Environment
Erscheinungsjahr 2018
Department BZF; iDiv
Band/Volume 16
Heft 2
Seite von 359
Seite bis 378
Sprache englisch
Keywords Agroecosystems; Oryzetea sativae; Philippines; Species diversity; Vietnam; Weed communities
Abstract Which plant species can be found on rice field bunds and what are the prevailing life forms? Which plant communities occur and what are the main environmental drivers and phytogeographic patterns shaping these communities? How do species diversity and composition differ between bunds and paddies? To answer these questions, 133 vegetation relevés using the Braun-Blanquet method were collected in lowlands and uplands of Vietnam and the Philippines between 2012 and 2015. Soil samples were collected and farmers were interviewed. Properties of soil, climate, and geography were assessed, further structural parameters, landscape heterogeneity, seasonality, management and intensity of cultivation. Hierarchical UPGMA cluster analysis and NMDS ordinations were performed to visualize variation in plant community composition and the determinants. We found 302 vascular plant species, of which 94 species are red listed by the IUCN (under category “Least concern”). Therophytes and helophytes are the prevailing life forms. Six clusters of plant communities were classified, and temperature, soil acidity, land use intensity and nutrient availability were identified (according to relevance) as explanatory variables. Bunds revealed higher species richness than paddies and bunds in mountain areas were more species-rich than those in the lowlands. We conclude that the composition of bund communities provides valuable information on environmental and biogeographical conditions of the local rice landscapes, and that it is probably the best applicable and most reliable indicator of management intensity.
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Fried, O., Kühn, I., Schrader, J., Nguyen, V.S., Bergmeier, E. (2018):
Plant diversity and composition of rice field bunds in Southeast Asia
Paddy Water Environ. 16 (2), 359 - 378 10.1007/s10333-018-0657-8