Study on the ex-situ cultivation of 2-year-old Davidia involucrata seedling in northern coastal areas
This paper aims to analyze the growth pattern of Davidia involucrata seedlings in northern coastal areas to provide support for ex-situ conservation.In this study,three different site conditions were set in the coastal areas of Yantai to conduct ex-situ conservation experiments of Davidia involucrata seedlings,the growth indexes were analyzed,and the problems of increasing summer and overwintering were explored.The study concluded that the survival rate of Davidia involucrata seedlings was low without protection,and the preservation rate was between 29％and 45％.In summer,there was a slightly withered phenomenon,the leaves were seriously damaged,the water content was low,and new plants sprout at the root.In the cultivation test,we found that the seedlings were more suitable to grow in low mountains,followed by hilly and plain areas.In summer,semi-shade and non-woven measures could significantly improve the survival rate,improve the quality of seedlings and reduce burns.In winter,the trunk wrapped with non-woven fabric and film could significantly improve the survival rate of overwintering,reduce the rate of withered,promote early spring germination,and improve leaf quality.
NETL
NSTL
万方数据
