1. Pine trees rot at the end of the Millennium, and hibiscus flowers are proud every day.
I occasionally come to sleep under the pine tree with a high pillow and a stone.
3. The crane nest is full of pine trees, and people visit the door sparsely.
Why not plant pine trees and let them sway with the wind? Planting in Qin dynasty, withered species are not available. ?
I don't like listening to pine trees enough, so I forget to return them every time. ?
1. Pine, the floorboard of Pinaceae, is evergreen. Most of them are tall trees. It is 20 ~ 50 meters high and can reach 75 meters at the highest (P.lambertiana, American sugar pine). Pine has strong drought resistance and poor shade tolerance. A few are shrub-like, such as Kobresia humilis and Kobresia yunnanensis. It is an important part of forests in the northern hemisphere, an important tree species for artificial afforestation and a precious ornamental tree species.
2. According to the structural characteristics and wood properties, pine trees are generally divided into cork pine and hardwood pine. Cork pine (that is, subgenus of single vascular bundle) is light and soft, uniform in texture, low in strength, easy to process, with gradual change from early wood to late wood and few wing cracks. Hardwood pine (that is, subgenus of double vascular bundles) is relatively hard, uneven in texture, high in strength, difficult to process, fast in transformation from early wood to late wood, and high in rosin content. However, Hainan five-needled pine and South China five-needled pine belonging to cork pine are close to hardwood pine in strength and bulk density. Pine can be used in buildings, telephone poles, sleepers, columns, bridges, farm tools, appliances, furniture and other purposes. The cellulose content of various pine trees is about 50 ~ 60%, and the lignin content is 25 ~ 30%, which is one of the important raw materials for pulp and paper industry.
3. The full text of the above poems is as follows:
(1) "at the end of the Millennium, pine trees rot, and a day of hibiscus flowers is proud." From Bai Juyi's Five Words and Five Things in Tang Dynasty: If you don't bully Mount Tai, Yan Zi has no intention to envy Lao Peng. Pine trees rot at the end of the Millennium, and hibiscus flowers are proud every day. Why love this world and always worry about death, and don't be too tired of life. Life and death are illusions. What does it feel like to be an illusionist? Bai Juyi (772-846), a native of Xinzheng, Henan Province, was born in Taiyuan, Lotte, Xiangshan, and drunk.
(2) "I occasionally come under the pine tree and sleep on a high pillow." From the Tang Dynasty, Taishang Laojun's Answer to People: I occasionally come under a pine tree and sleep with a stone high on my pillow. There is no calendar in the mountains, and I don't know what month the cold used to be. Taiwanese hermit, a hermit in the Tang Dynasty, lives in Zhong Nanshan and calls himself a Taiwanese hermit. His life experience is unknown.
(3) "The crane nest is full of pine trees, and there are few people visiting the door." From Wang Wei's "Living in a Mountain is a Thing" in the Tang Dynasty: Loneliness covers firewood and flies, and recklessness sets off the glow. Crane perches on the surrounding pine trees, and tourists are left in cold and sparse places. The bamboo knot has added a new layer of powder, and the old lotus leaf is red and red. Fishing boats on the ferry are shuttling little by little, and there are people coming and going everywhere. Wang Wei (70 1-76 1, 699-76 1), a native of Zhou Pu, Hedong (now Yuncheng, Shanxi), was a poet in the Tang Dynasty and was called "Shi Fo".
(4) "Why not plant pine trees and let them shake the breeze? It was planted in the Qin dynasty and not for supply. " From Yuan Zhen's Pine Tree in the Tang Dynasty: Huashan Mountain is high and narrow, with tall pines on it. The plants are far apart and the leaves are heavy. ? Sophora japonica is planted in the middle of the road, and its branches and leaves are hidden. There is neither chastity nor straightforwardness, and there is a worm hanging on it. ? Why not plant pine trees and let them sway in the wind? Planting in Qin dynasty, withered species are not available. ? Poverty and loneliness are different from Sophora japonica. Idle at the top of the mountain, playing with dragons. ? Qu for architecture, shelter Hou and Gong. Refusing to be a soldier is all in the dust. Yuan Zhen (779-83 1 year, or from the 14th year of Dali in Tang Daizong to the 5th year of Daiwa in Wenzong) was born in Luoyang (now Luoyang, Henan) in the Tang Dynasty.
(5) "I didn't listen enough to love, so whenever I pine trees, I forget to return them. ? "The Play on the Pine Tree by Jiao Ran in the Tang Dynasty: I forget to return it every time because I can't get enough of pine trees. ? However, more importantly, smiling at the idle clouds seems that I am also very idle. Sang Jueran (730-799), a native of Huzhou (Xing Wu, Zhejiang), was the founder of China's landscape poems, the tenth grandson of Xie Lingyun, a famous poet in the Tang Dynasty and a tea monk, and presided over the Miaoxi Temple in Zhushan, Xing Wu. He is quite accomplished in literature, Buddhism and tea science.
reference data
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