生态学杂志2025，Vol.44Issue(12)：3932-3938,7.DOI:10.13292/j.1000-4890.202512.027
围栏对刺萼龙葵植株风滚传播阻断机制
Interception mechanism of tumbleweed dispersal of Solanum rostratum by fences
摘要
Abstract
Dispersal interception of Solanum rostratum is crucial for controlling its invasion into new habitats and large-scale spread.We used a wind tunnel simulation to determine the wind velocity required for stem breakage of the plant according to assumed dispersal characteristics of tumbleweed.An experiment following randomized block design was conducted to monitor the effect of fences on dispersal interception.We found that the mature plants were not broken when the wind speed was 14 m·s-1.In the enclosed area,99.1％of plants were not broken by wind,and 0.9％were artificially broken during fence construction.The fruits did not drop from the plant in the field,and so we did not find fruits passing through mesh holes of the fence by wind.Different fences with small(3 cm×3 cm),medium(6 cm×6 cm),large(12 cm×12 cm)and extra-large(20 cm×40 cm)mesh hole did not affect in-terception efficiency.Half of the plants were able to climb over 40-cm-high fence,while the plants were unable to climb over 70-cm-high fence.Therefore,S.rostratum is not a typical tumbleweed,and its stem can not be broken by wind,but could be broken by animals or people trampling.The long-distance dispersal of S.rostratum can be controlled effectively by preventing contact with livestock and human disturbance.关键词
风滚植物/围栏网孔/风洞模拟/控制试验/围栏高度Key words
tumbleweed plant/mesh hole of fence/wind tunnel simulation/control test/fence height引用本文复制引用
于航,张梦莹,周全来,曹伟,张悦,马瑛培,马巍格,姜艳,王永翠,崔雪..围栏对刺萼龙葵植株风滚传播阻断机制[J].生态学杂志,2025,44(12):3932-3938,7.基金项目
国家重点研发计划项目(2021YFD1400303)资助. （2021YFD1400303）
