Using different excellent tree species, carry out afforestation trials in different areas, the test site includes two places of horqin sand and kubqi desert, the survival rate of seedlings in the year of afforestation statistics, 2-3 years after afforestation statistics of late afforestation rate of preservation, and changes in the growth of afforestation seedlings, the investigation indexes include the tree height, diameter at breast height, the survival rate and the rate of preservation of afforestation seedlings.

  2018 in Dalat Banner to complete the regional afforestation and sand control demonstration project of 130 acres, the selection of tree species are small poplar 2 and Changwu pine, small poplar and Changwu pine afforestation after the year's survival rate of more than 90%, 2 years after the preservation of seedlings are more than 85%, and the growth of good condition, no pests and diseases. The average height of small poplar 2 is 3.97m, average diameter at breast height (D.B.H.) is 4.96cm; Changwu pine is 1.03m, diameter at breast height (D.B.H.) is 3.62cm; the demonstration of afforestation and sand control was accomplished for 30mu in the saline and alkaline test base of Tongliao Kozuozhongqi Dongsu Forest Field; the selected species mainly include local native species: Phellodendron Bark, Ulmus domestica, Ulmus spiny elm, and Mapleus dendriticus; and the introduced species include Pterocarpus indicus, Pterocarpus mongoliculatus, Tamariskus sanguinis, Avenida avena, and small poplar 2. The survival rate of local native species of Phellodendron Bark, Prickly Elm, Ulmus domestica and Maple Genbao is more than 85%, and the preservation rate is more than 85% after 2 years; the survival rate of introduced species of Phellodendron Bark, Montserrat and Tamarix rubra is more than 90%, and the preservation rate is more than 85%, while that of Poplar No.2 is low due to the quality of the afforested seedlings. The three tree species have good growth, no pests and diseases; in Tongliao City, Kezuozhongqi Sheber Spit test base to complete the demonstration of afforestation and sand control 5 acres. Selection of tree species Changwu pine, 9 years old Changwu pine tree height and diameter at breast height were 1.3 times and 1.2 times of the camphor pine, the difference is significant, the highest tree height of 5.2m, diameter at breast height of 10.8cm, the average annual growth of 41.8cm, the maximum annual growth of 85cm, no pests and diseases; in Tongliao City, Kezuozhong Banner, Tongliao Qulunqi test site to complete the demonstration of afforestation of 30 mu of sand. Selected local native species include: domestic elm, prickly elm and dry willow; introduced species include montmorillon, small poplar 2, mountain apricot and hickory, the survival rate of the introduced species montmorillon and hickory after afforestation was more than 85% in the same year, and the preservation rate of the seedling was more than 80% after 3 years, comparing with the local native species, only domestic elm's survival rate and preservation rate was more than 90%, prickly elm and dry willow's survival rate and preservation rate was low, and the preservation rate was less than 70%. The survival and preservation rates of prickly elm and dry willow are lower, with preservation rates of less than 70%. The survival rate of small poplar No.2 is low due to the quality of the seedlings. The three tree species are in good condition and free of pests and diseases. In addition, some excellent tree species, including XiaoHuYang 2 and BaiXueJiao, were studied in terms of breeding techniques, mainly using cuttings to expand propagation. In the spring of the year before XiaoHuYang 2 was harvested, the mother tree was intensely pruned to promote the sprouting of new branches, and the healthy first-year branches were cut into 10-15cm-long cuttings with 3-4 full buds, and a total of 500 cuttings were obtained. The second batch of plugs were taken from 1-2 year old small trees in the nursery, all of which were annual branches, and a total of 10,000 plugs with a diameter of 0.7cm or less were obtained. Different soaking time, different concentrations of IBA, ABT1# and ABT2# were used for treatment, and the results of the cuttings test using container-temperature-control technology were as follows: sprouting of buds could be observed at about 10d, adult leaves began to grow at about 20d, and the germination rate reached 85%, rooting of healing tissues could be seen at 15 days, and occasional rooting of the skin was seen, and the overall survival rate could be reached at 85%-90%. After investigation of 0.3cm of the highest survival rate of the plug, up to 90-95% or more, the annual branches of the main trunk height of 1m below the part of the plug made of the survival rate is very low, mainly because of the difficulty of germination. With snow fruit annual lignified branches as materials, through different substrate, hormone and concentration of the comparison test, to explore the substrate, hormone and concentration of snow fruit cuttings rooting effect.