生态学杂志2024，Vol.43Issue(7)：1937-1940,4.DOI:10.13292/j.1000-4890.202407.021
半干旱区沙生植物繁殖对策
Reproductive strategies of psammophytes in semi-arid areas
摘要
Abstract
The dune ecosystem is strongly disturbed by sand burial and wind erosion.Although it is well established that plants are more adaptive to disturbance through reproductive strategies,little is known about the reproductive strategies of psammophytes to adapt to disturbance of aeolian sand.In view of this,I examined reproductive strate-gies of typical psammophytes,Agriophylum squarrosum,Artemisia wudanica,Phragmites communis and Salix gordejevii,in the semi-arid Horqin Sandy Land.Through a systematic study,I found 2 reproductive mechanisms to raise seed availability(resistance to long-distance dispersal and continuous supply of diaspores),2 reproductive mechanisms by using clonal reproduction to adapt active sand(defense type and migratory type),4 reproductive mechanisms to deal with wind erosion(mechanism of sexual reproduction in moving sand dunes,mechanism of sex-ual reproduction in interdune lowland,sexual and asexual reproduction mechanisms in sand dunes,and mechanism of asexual reproduction in interdune lowland),and 4 mutual feedback mechanisms between reproductive patterns and aeolian sand activities(wind erosion and sand burial promote sexual reproduction of dune plants,wind erosion and sand burial promote sexual reproduction of lowland plants in the interdune,wind erosion and sand burial pro-mote vegetative reproduction of dune plants,and wind erosion and sand burial adjust vegetative reproduction of low-land plants).This paper is a conceptualized and summarized report of reproductive strategies of psammophytes.关键词
沙埋/风蚀/种子可获得性/互馈机制/科尔沁沙地Key words
sand burial/wind erosion/seed availability/mutual feedback mechanism/Horqin Sand Land引用本文复制引用
刘志民..半干旱区沙生植物繁殖对策[J].生态学杂志,2024,43(7):1937-1940,4.基金项目
辽宁省社发重大专项课题"山水林田湖草沙一体化修复原理与设计"资助. （）
