The Afforestation Technology Research On The The Subsidence Area Of Shendong Coal

The mining area Huo jitu picks the area take the god east as to study the region,Chooses within the boundaries of Gao Jiapan in 2008 to cave in the area to take the experimental place,The shiny-leaved yellowhorn, the sea-buckthorn, the locust tree, the mulberry tree, the red jujube, Shan Xing, the Chinese date and the evergreen tree takes the experimental tree seed,Makes the different matrix combination,Different cover way and different entire way experimental processing,After take transplants the first year nursery stock's different growth target result as the basis,The analysis different matrix combination, the different surface cover, the different entire way to supply to try the tree seed each growth target the influence, In order to increase the local ecology economical tree seed survival rate to provide the essential basis, And plays certain instruction role to the local afforestation technology. The findings indicated,(1)When employment sheep excrement +150g water retention agent matrix combination the shiny-leaved yellowhorn moves the overall growth condition which plants seedlings to be best;When Yang Fen and 100g water retention agent combination,Sea-buckthorn's survival rate is highest,Time the humic acid and the 150g water retention agent combination place diameter growth is biggest.(2)The membrana tectoria, the duplicate grass, under the duplicate sand three cover way the locust tree and mulberry tree's survival rate is higher than to in the same old way, Time membrana tectoria locust tree and mulberry tree's survival rate obviously is higher than other two cover way,Explained the membrana tectoria guarantees the water effect to be best, is most advantageous to the nursery stock survive。(3)In view of the fact that leading factor and economic efficiency dual considerations,Finally determined hole shape entire tunnel is the 1.5m entire way most may take to the sand shiny-leaved yellowhorn's growth.(4)The mining area adopts the base fertilizer, the water retention agent, the membrana tectoria after the god and entire and so on the measures, Experiments the model district nursery stock's survival rate to have the remarkable enhancement compared to the afforested area plant percent, Experiments the model district nursery stock's survival rate to have the remarkable enhancement compared to the afforested area plant percent,Explained the above measure is truly advantageous to nursery stock's survive and the growth.(5)Different types of site conditions, sunny and sandy Xanthoceras more suitable for the growth of seedlings, for Pinus sylvestris, the sand and the seedling survival rate than the high-beam, there is no significant change of the seedling growth in the Slope and Sunn of beam(6) In the Shendong mining area , Planting Pinus sylvestris and Pinus reforestation, the survival rate of afforestation in the autumn is higher to spring significantly .(7)In Shendong mining area, the sand more suitable for the growth of Pinus sylvestris, Pinus, Xanthoceras, mulberry and black locust, and in the beam on the ground, Pinus sylvestris, false indigo, Culture and sorbifolia relatively have high survival rate.