草业学报2018，Vol.27Issue(3)：187-193,7.DOI:10.11686/cyxb2017366
蛇麻黄浸提液对苔藓结皮生长的影响
Effect of Ephedra distachya extracts on moss crust growth
摘要
Abstract
Moss crust is the advanced stage of biological soil crusts and plays a vital role in the prevention of soil erosion and sand stabilization.In recent years,a lot of attention has been paid to these crusts because as a major component of desert vegetation,the ecology and function of biological soil crusts is crucial.In this study,distilled water and ethanol were used to extract different parts of Ephedra distachya (leaf,root and rhizosphere soil),and the extracts solution were added to glass dishes which had been filled with desert sand soil and moss fragments which were then cultivated.Growth indicators such as chlorophyll content,moss density,height and respiration were measured.The results showed that both water and ethanol extracts inhibited moss growth.As for different parts of extracts,leaf extracts showed stronger inhibition than root and rhizosphere soil.Respiration rate indicated that E.distachya extracts promoted CO2 release from the moss crust,which resulted in the crust becoming sparse with any moss present being small.Compared with ethanol,moss crusts respiration treated with water extracts solution increased much more.The results suggest that there is an allelopathic effect from E.distachya on moss crust.关键词
苔藓结皮/蛇麻黄/浸提液/人工培养/化感作用/呼吸速率Key words
moss crust/Ephedra distachya/extract solution/cultivation/allelopathy/respiration引用本文复制引用
吉雪花,王露洁,庞胜群..蛇麻黄浸提液对苔藓结皮生长的影响[J].草业学报,2018,27(3):187-193,7.基金项目
国家自然科学基金地区项目(41361097)和高等学校博士学科点专项科研基金(20136518120002)资助. （41361097）
