不同产地的2种灌木柳品种抗旱性初步研究

通过对不同产地北沙柳、黄柳一年生无性系扦插苗的成活率、高生长量等生长指标和干物质积累量,应用隶属函数法进行了抗旱性评价,认为不同产地灌木柳无性系苗的成活率、干物质积累量、高生长量、地径等指标均存在不同程度的差异;其中伊金霍洛旗掌岗图、达拉特旗响沙湾和解放滩产地的北沙柳具有良好的生长表现,是抗旱性较强的北沙柳产地,可用于西部干旱沙区造林推广;辽宁章古台和呼伦贝尔市鄂温克产地的黄柳在试验中表现出较好的抗旱性,原本处于半湿润区的黄柳定植到干旱的沙区还能表现出很好的抗旱性,可以在东部湿润沙区进行推广。

Research on Drought Resistance of Two Shrub Willows in Different Producing Areas

The field experiment was conducted to investigate the drought resistance of annual clone seedlings of Salix psammophila C.Wang et Ch.Y.Yang and Salix gordejevii Y.L.Chang et Skv.in different producing areas.And the survival rate and height increment were evaluated by use of subordination function method.The results showed that there were distinct differences on survival rate,dry matter accumulation,height increment and basal diameter of clone seedlings of shrub willow in different producing areas.Salix psammophila C.Wang et Ch.Y.Yang from Zhanggangtu in Yijinhuoluo and Jianfangtan and Xiangshawan in Dalate had strong drought resistance,which could be planted in western arid sandy areas.Salix gordejevii Y.L.Chang et Skv.from Zhanggutai in Liaoning and Ewenke in Hulunbeier had strong drought resistance,which could be planted in eastern humid sandy areas.