Afforestation method for rock desert mountainous area Malania oleifera

Abstract

The invention provides an afforestation method for rock desert mountainous area Malania oleifera, and relates to the technical field of afforestation. The method comprises the following steps of 1, collecting mature Malania oleifera fruits, collecting seeds, performing airing, and obtaining seeds to be sown; 2, performing sand preservation on the seeds to be sown obtained in step 1 for 3-4 months,and obtaining germinated seeds; 3, sowing the germinated seeds obtained in step 2 into an afforestation land, and performing laminating, wherein the afforestation land comprises shrub wood or thick growth of grass with the canopy density being 30-40%; 4, performing emergence of the germinated seeds 20-30 d after laminating, and cutting a circular opening with the diameter being 4-5 cm in a film over seedlings. Three years after afforestation, the afforestation survival rate is 85.2%, the afforestation survival rate is 81.8%, the tree height is 2.26m, the ground diameter is 4.07 m, and the crown breadth is 1.52 m<2>. Compared with the proportion, the afforestation survival rate is increased by 4.63-5.4 times, and the afforestation survival rate is increased by 5.56-6.49.

Description

technical field [0001] The invention belongs to the technical field of afforestation, and in particular relates to a method for afforestation of garlic fruits in rocky desertification mountainous areas. Background technique [0002] Afforestation under site conditions in rocky desertified mountainous areas has always been a technical bottleneck for vegetation restoration in rocky desertified areas. Due to poor site conditions, barren soil, drought and water shortage in rocky desertification mountainous areas, afforestation and management and protection are very difficult. The survival rate and preservation rate of planted seedlings are low, the quality of afforestation is poor, and vegetation restoration is difficult. [0003] Garlic fruit is an evergreen tree belonging to the family Ivyaceae. It has luxuriant branches and leaves, is evergreen in all seasons, and has a well-developed root system. It naturally grows in karst limestone mountainous areas. It is a good ecologica...

AI Technical Summary

Problems solved by technology

At present, the afforestation methods of garlic fruit in rocky desertification areas mainly adopt direct seeding afforestation and seedling afforestation. The survival rate and preservation rate of afforestation of the two afforestation methods are both less than 20%, and it is difficult to form large-scale plantation

Direct-seeding afforestation is planting afforestation directly after the seeds are mature. After sowing, due to the barren soil and drought and water shortage in the rocky desertification site, 60-70% of the seeds are difficult to germinate and grow due to lack of water required for seed germination. In addition, because squirrels like to eat For garlic seeds, 20% to 30% of the seeds are eaten by squirrels after sowing, so the final survival rate of direct seeding afforestation is only 13% to 19%; The fleshy roots are easy to damage the root system during transportation and afforestation, which affects the survival rate of afforestation. On the other hand, because garlic seedlings like a humid environment, if the seedlings are not watered in time after afforestation, it is difficult for the seedlings to survive. In rocky desertified mountainous areas, only natural rainfall is used to supply seedlings for growth, so the survival rate of afforestation is only 10% to 17%, and the cost of afforestation is relatively high