TY - Data T1 - Investigation on the growth of afforestation tree species in Kubuqi Desert and Horqin Sandy Land (2017-2020) A1 - Liang Hairong A1 - LIjiatao A1 - None DO - 10.12072/ncdc.ZDYF.db1670.2022 PY - 2022 DA - 2022-02-18 PB - National Cryosphere Desert Data Center AB - Afforestation experiments are carried out in different areas with different excellent tree species. The test sites include Horqin sandy land and Kubuqi Desert. The survival rate of seedlings in the year of afforestation, the preservation rate in the later stage of afforestation and the change of growth of afforestation seedlings in 2-3 years after afforestation are counted. The investigation indicators include tree height, DBH, survival rate and preservation rate of afforestation seedlings.</p><p> In 2018, 130 mu of regional afforestation and desertification control demonstration project will be completed in Dalat banner. The selected tree species include Populus euphratica No. 2 and Zhangwu pine. After afforestation, the survival rate of Populus euphratica and Zhangwu pine in the current year is more than 90%, and the preservation rate of seedlings is more than 85% two years later, with good growth and no diseases and pests. The average tree height of Populus euphratica No. 2 is 3.97M and the average DBH is 4.96cm; Zhangwu pine 1.03m, DBH 3.62cm; 30 mu of afforestation and desertification control demonstration was completed in the salt alkali test base of Dongsu forest farm, Kezuo Middle Banner, Tongliao City; The selected tree species mainly include local tree species: Phellodendron amurense, Ulmus pumila, Ulmus spinosa and Acer truncatum; The introduced tree species include Fraxinus mandshurica, Mongolian mulberry, Tamarix safflower, Xanthoceras sorbifolia and Populus euphratica No. 2. The survival rate of local tree species Berberis, Ulmus pumila, Ulmus pumila and Acer truncatum is more than 85%, and the preservation rate is more than 85% after 2 years; The survival rate of Fraxinus mandshurica, Mongolian mulberry and Tamarix safflower introduced is more than 90% and the preservation rate is more than 85%. The survival rate of Populus euphratica No. 2 is low due to the quality of afforestation seedling DB - NCDC UR - http://www.ncdc.ac.cn/portal/metadata/703a96ee-28e0-4085-a5de-173baba45c09 ER -