Chapter 16 Xiangshan is old

The oldness of Xiangshan, I don't mean the oldness of the mountain, but the oldness of the sumac tree on Xiangshan.As the sumac trees get old, the red leaves of Xiangshan are no longer as gorgeous as before, and the famous red leaves of Xiangshan are sadly sparse.This kind of situation has actually happened for some years, and in the past, Beijingers often blamed this situation on tourists picking red leaves.Yes, people who go to Xiangshan always pick some red leaves as souvenirs, and some people pick the red leaves and sell them in plastic bags, but the real root is not here.The sparseness of the red leaves is due to the sickness of the cotinus cotinus growing the red leaves. This disease is called cotinus verticillium wilt.It is said that there is no effective control method for this disease both at home and abroad, that is to say, we can only watch the lovely sumac tree getting sick and dying gradually.

When the sumac tree is sick, we can’t find a cure for it for a while. This is because we used to think that the tree can grow red leaves continuously, and can always decorate the beautiful autumn of Xiangshan. It will be less. I didn't expect that after the tree is sick, it will no longer grow red leaves.Experts said that the place where sumac trees are concentrated, the higher the incidence rate, it seems that the disease of this tree is also contagious.Why is the sumac tree also sick?I can't find the answer, maybe all trees get sick, it's just that our tree medicine is not developed enough.

This autumn, I am a little sad for the sumac tree. If Beijing does not have the red leaves of Fragrant Hills, will autumn in Beijing still be autumn in Beijing?If you can't see the red leaves of Xiangshan, can it still be called Xiangshan?People, when we care about ourselves, we should also care about our friends around us. This era has been listed as "endangered", because as long as the Chinese sturgeon, panda, Siberian tiger and other names are listed together, we can Use the word endangered.But if it is endangered, what kind of signal does it send to the group of life? Monotony and loneliness on the moon?

Xiangshan Cotinus cotinus, like the red maple tree in the south, is as red as a sunset glow in the mountains, like a cluster of flames, under the blue sky and white clouds, it is so gorgeous and brilliant, which makes people feel infinitely beautiful in autumn.However, it is sick. I think there may be human factors for its illness. Maybe we like "a group of red clouds in Xiangshan" too much, so we planted cotinus cotinus densely on Xiangshan, which aggravates the chance of them getting sick. According to plant experts, the most vigorous forest should be a mixed hybrid forest, rather than planting only one kind of tree in one place. The disease resistance of a single tree species is too low, and the scenery is also too monotonous.In the south, there is a fiery red maple forest in the distant mountains, but there are clusters of green bamboos in the front, or the swaying green pines. The scenery is beautiful.When I first came to Beijing, I also admired the fiery redness of Xiangshan Mountain and the large ginkgo trees in Yuyuantan. The golden color of ginkgo trees in autumn is so beautiful that people are immersed in the splendor of ginkgo trees.I don't know if ginkgo will get sick?If ginkgo is also sick, it is really sad enough.Also, I once saw on TV that after the fire in Daxing'an Mountains, people are also planting trees, and they are also planting a single tree species. What kind of impact will this have on the ecology?Do they also spread a disease?Would a single tree species cause many animals to migrate?definitely will.In the primeval forest, there are also large tracts of single tree species. That is indeed the helplessness of the tree. The tree cannot move around, so it has to reproduce nearby, and it cannot control the consequences of so many diseases.

The plants are really poor, they are speechless. Last year I raised a pot of hibiscus and a tank of blue peacocks. These fish called blue peacocks had nothing to eat, and the water was not changed in time, so they jumped up. , to express anger, dissatisfaction, protest - after I received this information, I fed and changed the water for them, but the pot of hibiscus died silently, which caught me off guard.Maybe I want it to bloom too much, and I keep watering it, so that its roots are soaked. When its leaves suddenly turn yellow, I don't know what to do. I can only watch it wither, and then it dies. ——When it is uncomfortable, it can't convey information to me, and can't protest to me, so its delicate life ends in such a hurry.This year I planted melons and fruits on a balcony, and I paid extra attention to them. The watermelon I planted on the balcony turned out to be the size of a fist. I found that plants need more care than people.

So, what about the sumac tree?It is it that makes Xiangshan famous; it gives us such comfort in ordinary life; it makes the business of Xiangshan Park double.But, have we thought about the sumac tree? No.I admit that when I learned that the sumac tree was sick, my first thought was: we will not see red leaves in the future, and we will not have a beautiful Fragrant Mountain in the future, but I did not think that the sumac tree will die, and there will be no sumac tree But the sumac tree should have the right to live and pass on to its children and grandchildren. What I sigh is our sensory and aesthetic enjoyment. I didn't expect to lose the sumac tree, but it is an injustice to the sumac tree.The sumac tree has the right to live. If the sumac tree can survive, why not have less red leaves in Xiangshan?The point is - the sumac tree should be alive.