CAJ | 학술논문

通过对光梗蒺藜草在固定沙地、流动沙地、半固定沙地、半流动沙地4种沙地类型中作用的分析，表明光梗蒺藜草为半固定沙地上的优势种，其相对盖度和重要值均高于其他3种样地类型，占主导地位；通过Shannon多样性指数分析表明光梗蒺藜草有导致半固定沙地物种多样性减弱的趋势。进一步的研究应更注重光梗蒺藜草在半固定沙地的入侵趋势。
통과대광경질려초재고정사지、류동사지、반고정사지、반류동사지4충사지류형중작용적분석，표명광경질려초위반고정사지상적우세충，기상대개도화중요치균고우기타3충양지류형，점주도지위；통과Shannon다양성지수분석표명광경질려초유도치반고정사지물충다양성감약적추세。진일보적연구응경주중광경질려초재반고정사지적입침추세。
The invasive potential of Cenchrus calyculatus Cav.in the fixed sand, mobile sand, semi -fixed sand and semi-shifting sand was studied.C.calyculatus was the dominant species in the semi -fixed sand, with a relative coverage and importance value higher than the obtained in the other three types .Based on Shannon diversity indices C. calyculatus led to a reduced species diversity in semi -fixed sand .Further research should pay more attention to the inva-siveness of C.calyculatus in the semi-fixed sand.