When I think the seeds on any tree are ripe, I will directly plant the seeds with fruits or seed coats to the top of the mountain without trees, such as apricot ripe, the ripe apricot fruits with apricot seeds are directly planted in the soil on the top of the mountain. When the peach and tangpear are ripe, the peach and tangpear are buried beside the grass on the hillside. The same Persimmon, cypress, forsythea chinensis, yellow prickly plum, cherry and so on all adopt this method to make seeds choose the time of germination under the condition of soil temperature and humidity. The purpose of doing this is to give more tree species to let nature take its course. When there is no human intervention, the apricot will fall when it is ripe, and when it falls to a suitable place and is buried in the soil, it will take root and sprout, the same is true for other tree species. But when the tree species fall into the grass on the ground, they will be buried in the dust of rotten branches and leaves to obtain the necessary conditions for germination, or washed away by rain, taken to other places by birds and beasts, and buried in the soil to obtain the necessary conditions for germination, A time process is needed. Where is washed by rain, or taken by birds and beasts, the randomness is very strong, which is not necessarily conducive to the effective use of geographical space. Artificial and conscious assistance can make up for the deficiency under natural conditions, which is more conducive to the utilization of geographical space by tree species and their own development and growth. Tree species such as peach, apricot, tangpear and Diospyros diossus are buried in the soil together with fruit seeds. After the fruit decays, it is likely to become the necessary nutrition for the seeds to take root and germinate. It is generally believed that the fruits outside The seeds should be the bait prepared for transmission. For example, apricot and peach are likely to become delicious food of Beaver and badger after being ripe. They defecate within the range of activities, the seeds were planted far away from the mother tree, which could be the top of the mountain, the valley, the cliff crack, or the bottom of the stream. Because of the diversity of their food, no matter where they take the seeds through physiological excretion, there will be more abundant and diverse nutrients than apricot. Tangpear and cherry are likely to be spread by birds, so they can also be seen in places where animals cannot reach. Although artificial afforestation on demand is not as sufficient and diverse as that of birds and beasts for seed germination, it can reasonably preserve and utilize limited nutrients, such as allowing seeds to go deep into the soil in time, meet the basic conditions required for tree species to take root and sprout. Aerial seeding afforestation should be an imitation of the behavior of trees falling seeds into seedlings and using birds to eat in the air during the process of natural forest restoration. Because this method has low afforestation cost, the preservation rate is better than that of artificial planting and afforestation, which has been widely promoted in many places. I believe that artificial on-demand afforestation will have a better effect. However, the selection of tree species must be truly suitable to the land and trees, and the economic interests should not be put in the first place. In the past, we always talked about suitable trees, that is, the scope of suitable trees is too narrow, so it is difficult to have ideal effect. I have proposed that even my 60-year-old colleagues don’t agree with it when planting on the top of the mountain without trees and growing well locally, and there are also yellow bayberries growing on some top of the mountain. Why, the habitual thinking still works. For decades, there is only grass growing on the mountain. Why can’t we plant some shrubs that adapt to the geographical climate but have no economic value first? After many shrubs conquer the mountain top, if we cultivate valuable trees, we will not have ecological and economic benefits. Generally speaking, the usual afforestation method is to deal with the mature seeds well, store them until the next year, plant them in the well-prepared nursery, and cultivate them with enough fertilizer and sufficient water, when the seedlings meet the specification requirements, then plant the seedlings to the forest land. The advantage of this method is that the effect is fast, and the disadvantage is that the requirements are high, such as sufficient rainwater, ideal forest land. To put it bluntly, it limits the plasticity range of seedlings. If seeds are selected under natural conditions, the plasticity range will be greatly increased and the ability to adapt to geographical climate will be improved.

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