Experiment on Drought-resistant Afforestation with Pinus sylvestris var. mongolica Litv. in West of Keerqin Sandy Land

In order to increase the afforestation survival rate and preserved rate of Pinus sylvestris var. mongolica Litv. in west of Keerqin Sandy land, a series of tests have been done in Yutian'gao County, Wengniute Banner. The results show: after adopting a series of droughtresistant afforestation technology measures such as using container seedlings of 3 ~ 5 years, partial ground making in blocks, planting by watering, using ABT rootpromoting powder and waterprotected agent, covering film, banking up for overwintering, the moisture content of soil in main distributing layer (15 ~ 50cm) of root system of young trees has raised 25% ~ 60% than CK, the survival rate and preserved rate have been over 85% with raising 15% ~ 30% than CK.