How do diaspore traits, wind speed and sand surface configuration interact to determine seed burial during wind dispersal?
How do diaspore traits, wind speed and sand surface configuration interact to determine seed burial during wind dispersal?
复制标题
一水硬石的性状、风速和沙子表面结构如何相互作用来决定风传播过程中的种子埋藏？
DOI：
10.1007/s11104-019-04071-4
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发表时间：
2019-07-01
期刊：
影响因子：
4.9
通讯作者：
Zhou, Quanlai
中科院分区：
文献类型：
--
作者：
Liang, Wei;Liu, Zhimin;Zhou, Quanlai
AimsHow landscape configuration, dispersal agents and diaspore features interact to determine the input of seeds into the soil, which is the first part of the formation of a soil seed bank, is a major challenge. This study explored the role of diaspore traits and sand surface configuration in determining the number of seeds that become buried during wind dispersal.MethodsWe investigated seed burial probability of 36 species with different diaspore traits under eight wind speeds and three sand surface configurations during wind dispersal by using a wind tunnel.ResultsWind speed rather than diaspore traits and sand surface configuration was the most important factor affecting the burial of seeds. Effects of slope direction and surface barrier on seed burial were regulated by wind speed. Effects of diaspore traits on seed burial were only significant at high wind speeds, and seed burial was more likely to be formed for small or flat elongated diaspores than for large or spherical ones.ConclusionsThe effect of diaspore traits on seed burial is modified by the shifts in wind speed and sand surface configuration.
