流动沙丘白刺造林技术试验研究

通过流动沙丘造林试验研究发现,唐古特白刺在流动沙丘可采用植苗和扦插进行造林。流动沙丘植苗造林不仅成活率、保存率接近大田造林,而且生长表现包括冠幅、地径优于大田和草沙障沙丘造林。流动沙丘扦插造林成活率和保存率低于大田,但远高于草沙障沙丘,且插条长度和生根粉对唐古特白刺扦插的成活率和保存率有显著影响,用250mg/L浓度生根粉的泥浆蘸根,60cm长度插条扦插成活率和保存率分别达到72.5%和45.4%。

The experiment of afforestation technology of Nitraria tangutorum on the mobile sand dune

By trial and research of afforestation on the mobile sand dune, Nitraria tangutorum were found to be afforested on the mobile sand dune. Afforested on the mobile sand dune by seedlings, Nitraria tangutorum had highter survival rate and retention rate, and its growth appearance, such as the crown and base diameter, was better than that on the farmland and the fixed sand dune by straw sandbariers; its height was lower than that of the farmland, but much higher than the fixed sand dune by straw sandbariers. Afforested on the mobile sand dune by cutting branches, the survival rate and retention rate of Nitraria tangutorum was lower than those on the farmland, but higher than the fixed sand dune by straw sandbariers. The length of cutting branches and ABT Rooting Powder affected afforestation on the mobile sand dune by cutting branches significantly. Treated the roots with slurry of 250 mg/L ABT rooting powder, the survival rate and retention rate of the cutting branches whose length was 60 cm were 72.5 % and 45.4 %, respectively.