A method for improving an
afforestation survival rate by water collecting,
water retention and water replenishing comprises the steps of water collecting,
soil preparation,
water retention and water replenishing. The water collecting method comprises the steps that a
soil preparation engineering mode is used for collecting natural rainfall water into forest land and
plant pits; the measure of building a flow collecting face, a flow collecting
pool, a water cellar and the like is used, in the adequate rainfall reason, the natural rainfall water is collected and reserved, and the natural rainfall water is used for supplemental
irrigation when trees are in short of water. The
water retention method comprises the step of using mulching films, wheat
straw, dinas and the like for covering the
plant pits. The water replenishing method comprises the steps that when it is
arid and does not rain and when nursery stock is in water shortage, the methods of micro-
irrigation,
trickle irrigation, infiltrating irrigation under films, root-irrigation through tube inserting, water injection irrigation and the like are used for water replenishing;
soil preparation is conducted,
fertilizer is applied to the
plant pits, plastic films are mulched for catchment and
soil conservation, seeding and planting are conducted, a water collecting face and a water reserving cellar are built to collect rainfall water, and water replenishing and irrigation are conducted in the drought period in spring. The final purpose is to improve the
afforestation survival rate and the preserving rate, and to improve the volume of forest tree growth. In addition, the important links further comprise suitable
tree species choosing, application of the new technology, new method and
new materials of
afforestation, cultivation management,
disease and
pest control and the like.