榆林沙区柽柳育苗及造林技术研究初报

Experimental Study of Tamarix chinensis Seedling Production and Afforestation Technology in Yulin Sandy Area

采用不同沙藏时间处理,开展了柽柳(Tamarix chinensis)不同部位枝条扦插和不同季节播种育苗试验,并在沙丘上开展了不同部位、不同栽植深度造林试验。结果表明:柽柳在春季扦插育苗,以沙藏处理9~10 d为宜,成活率可达90%以上。树体上部插穗成活率好于中、下部,成苗率可达98%。播种育苗以春季为宜,当年苗高可达60cm以上;沙丘造林以迎风坡中、下部和丘间地成效较好,保存率可达60%以上。栽植深度以45~50 cm为宜,保存率可达65%以上。

Using different sand time treatments,trials of cuttings of different parts of Tamarix chinensis and planting seedlings in different seasons were conducted,afforestation experiments on sand dunes with different parts and different planting depths were conducted.Result shows that:Tamarix chinensis will be cut and raised in spring,and it is optimal to treat with sand storage for 9-10 days,and the survival rate can reach more than 90%;the survival rate of cuttings in the upper part of the tree is optimal than that in the middle and lower part,and the seedling rate can reach 98%.Spring is suitable for planting seedlings,which can grow up to more than 60 cm in the year,which is significantly optimal than planting seedlings in autumn;afforestation in the middle,lower part of the windward slope and the hilly area is optimal,and the preservation rate can reach more than 60%;planting depth 45-50 cm is suitable,the preservation rate can reach more than 65%.