Plant canopy may promote seed dispersal by wind.
Plant canopy may promote seed dispersal by wind.
复制标题
植物冠层可能促进种子通过风传播
DOI：
10.1038/s41598-021-03402-9
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发表时间：
2022-01-07
影响因子：
4.6
通讯作者：
Zhou Q
中科院分区：
文献类型：
--
作者：
Qin X;Liang W;Liu Z;Liu M;Baskin CC;Baskin JM;Xin Z;Wang Z;Zhou Q
种子传播受到了广泛的关注。植物冠层可以截住水孢子，但植物冠层（由树枝和叶子组成的植物的地上部分）对传播距离的影响尚未得到实证研究。为了确定植物冠层对种子传播距离的影响，在风洞中比较了三种风速和不同性状的聚散剂通过露天和通过植物冠层的传播距离。与露天降落的一水铝石相比，通过树冠降落的一水铝石的传播距离随风速和一水铝石特性的不同而减小或增大。低风速（2 m s−1）有利于带刺和无附属物的水聚体扩散，而高风速（6 m s−1）有利于低负荷（0.5 mg mm−2）和终端速度（2.5 m s−1）的水聚体扩散。植物冠层可以增加种子传播距离，这可能与冠层产生的复杂上升气流有关。母系植物对种子传播的影响调节着群落的分布格局和物种组成。
Seed dispersal has received much research attention. The plant canopy can intercept diaspores, but the effect of the plant canopy (the aboveground portion of a plant consisting of branches and leaves) on dispersal distance has not been explored empirically. To determine the effect of plant canopy on seed dispersal distance, a comparison of diaspores falling through open air and through plant canopy was made in a wind tunnel using three wind speeds and diaspores with various traits. Compared with diaspores falling through open air, the dispersal distance of diaspores falling through plant canopy was decreased or increased, depending on wind speed and diaspore traits. When falling through a plant canopy, dispersal distance of diaspores with thorns or those without appendages was promoted at low wind speed (2 m s−1), while that of diaspores with low wing loading (0.5 mg mm−2) and terminal velocity (2.5 m s−1) was promoted by relatively high (6 m s−1) wind speed. A plant canopy could increase seed dispersal distance, which may be due to the complicated updraft generated by canopy. The effect of maternal plants on seed dispersal regulates the distribution pattern and the species composition of the community.
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影响因子：
1.7
作者：
Paice, MER;Day, W;Howard, A
通讯作者：
Howard, A
影响因子：
2.6
作者：
Augspurger CK;Franson SE;Cushman KC;Muller-Landau HC
通讯作者：
Muller-Landau HC
DOI：
10.1098/rspb.2007.0190
发表时间：
2007-10-07
影响因子：
4.7
作者：
Jongejans, Eelke;Pedatella, Nicholas M.;Auhl, Richard
通讯作者：
Auhl, Richard
DOI：
10.1016/j.actao.2003.10.005
发表时间：
2004-03-01
影响因子：
1.8
作者：
Bullock, JM;Moy, IL
通讯作者：
Moy, IL
影响因子：
4.8
作者：
Greene, DF
通讯作者：
Greene, DF