Bud banks of two dominant grass species and their roles in restoration succession series of a flooded meadow

• Autorzy: Li H. , Yang Y. , Zhao Y.
• Języki publikacji: EN

Abstrakty

EN

The primary goals of this study were to quantify the composition and size of bud banks and to evaluate the roles of bud banks of main dominant species Leymus chinensis (Trin.) Tzvel. and Carex duriuscula C.A. Mey. in population maintenance over a 2-year period. The four experimental plots were in early, early-mid, middle and late seral stages of a flooded restoration succession after they had approximately 12, 10, 8, and 6 months. flood durations in the Songnen meadow, China. Five quadrats (each 0.25'0.25 m in area and 30 cm deep) were each sampled in four seral spots. The differences of L. chinensis and similarity of C. duriuscula in bud bank characteristics persisted in the studied seral stages from year to year. In each seral stage, rhizome buds comprised most of the L. chinensis bud banks in 2003; in 2004, juvenile tillers predominated. Rhizome buds consisted of the majority of C. duriuscula bud banks throughout the study period. The bud densities of L. chinensis and C. duriuscula experienced a significant linear increase with the increase of tiller density at different seral stages each year, but the slopes of these relationships in L. chinensis were higher than those in C. duriuscula. The total bud densities of C. duriuscula showed a significant linear decrease corresponding to the increase of those of L. chinensis from the early to the late seral stage in 2003 and 2004. Bud banks are vital for population maintenance and the number of bud banks is a good predictor of population dynamics.

Słowa kluczowe

EN

bud bank; Carex duriuscula; Leymus chinensis; natural meadow; population persistence; restoration succession series

PL

naturalna łąka; utrzymywanie populacji; Wydmuchrzyca

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2012
• Tom: Vol. 60, nr 3
• Strony: 535--543
• Opis fizyczny: Bibliogr. 29 poz.,Rys., tab.,

Twórcy

autor

Li H.

autor

Yang Y.

autor

Zhao Y.

• Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, 5268 Renmin Street, Changchun130024, Jilin Province, China,

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