The character and dynamics with season of soil seed banks in abandoned croplands of loess gully region

Abstract

Abstract: Samples were collected along two 10 m sections and a germination experiment was carried out in the laboratory to investigate the composition, density, type, and distribution at different times and spaces of the seed bank. There were 50 species belonging to 39 genera and 15 families in the soil seed bank. The density and composition of the main species in the bank were not significantly different between seasons. During the succession, the number of species and the density of the bank initially increased, then declined, and finally increased again. However, the seed bank density changed more acutely during the year, ranging from 1 067 to 14 717 seed/m², with the maximum value in summer, the medium in autumn, and the minimum in spring. The soil seed bank in the study field was persistent with Artemisia scoparia the main species coexisting with other annual vegetation, perennials and shrubs. Additionally, in the field, the soil seed bank did not change notably with the season. There is some potential for vegetation restoration using the soil seed bank.

CLC Number:

WANG Ning, JIA Yan-feng, BAI Wen-juan, ZHANG Zhen-guo, JIAO Ju-ying. The character and dynamics with season of soil seed banks in abandoned croplands of loess gully region[J]. Acta Prataculturae Sinica, 2009, 18(3): 43-52.

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