Ordered list of young and old
Tianshan spruce forest in Ling Xue, Tianshan Mountain
Korean pine broad-leaved mixed forest in Changbai Mountain (Jilin)
Jianfengling Tropical Forest (Hainan)
Baima Snow Mountain Alpine Rhododendron Forest (Yunnan)
Nyingchi spruce forest in Bomigang township, Tibet
Banna Tropical Forest (Yunnan)
Populus euphratica forest in Luntai (Xinjiang)
Libo Karst Jungle (Guizhou)
Larix gmelinii forest in northern Daxinganling (Heilongjiang and Inner Mongolia)
Shunan Zhuhai (Sichuan)
Shortlist (in alphabetical order)
Baima Snow Mountain Alpine Rhododendron Forest (Yunnan)
Nyingchi spruce forest in Bomigang township, Tibet
Korean pine broad-leaved mixed forest in Changbai Mountain (Jilin)
Changbai Mountain Jiali Pine Forest (Jilin)
Larix gmelinii forest in Daxinganling, Inner Mongolia
Pinus sylvestris var. mongolica. Honghuaerji Mongolian Forest in Inner Mongolia
Huangshan Huangshan pine forest (Anhui)
Jianfengling Tropical Forest (Hainan)
Spruce-fir forest in Jiuzhaigou (Sichuan)
Lulangyun Abies forest (Tibet)
Populus euphratica forest in Luntai (Xinjiang)
Mixed coniferous and broad-leaved forest of spruce and fir in Minjiang River Basin (Sichuan)
Shennongjia Primitive Forest (Hubei)
Tianshan spruce forest in Ling Xue, Tianshan Mountain
Banna Tropical Forest (Yunnan)
Korean pine broad-leaved mixed forest in Xiaoxing 'anling (Heilongjiang)
Selection scale
First, it conforms to the geographical environment, has distinct zonal ecological characteristics, is well preserved and has a long-term nature; (0-30 points)
2. The scope, plane or surface of the jungle is large, and the upper part of the trunk is beautiful, with a sense of tranquility or elegance; (0-30 points)
3. There are many rare, peculiar and ancient trees in the forest. The individual changes and spring and autumn changes of the trees are remarkable, with huge layout and distinct seasons.
Distinctive features; (0-30 points)
Fourth, there are rare animals and plants. (0- 10)
Introduction of professionals (arranged by strokes of surname)
Secretary of Wang Xingguo Shenzhou Jungle Scenic Resources Evaluation Committee
Director of the Jungle Park Studio of the State Forestry Administration, who has been engaged in the equipment arrangement and management of the Jungle Park for a long time.
Academician Feng Shenzhou Engineering Research Institute
Long-term engaged in the study of jungle ecological environment and ecological restoration. In May of last century, he proposed to change the clear cutting of a large plane or the surface of an object into selective cutting, covering the natural Korean pine forest in Northeast China, and made suggestions for the ecological restoration of the tropical jungle in Banna and the Tewu fire in Daxing 'anling. Now he is an intermediate researcher in ecological environment research of Shenzhou Academy of Sciences and editor-in-chief of Shenzhou Ecology magazine.
Academician of Li Wenhua Shenzhou Institute of Engineering and International Eurasian Academy of Sciences.
He has served as chairman and honorary chairman of Shenzhou Ecological Society, presided over large-scale comprehensive scientific investigation and resource research and development in Qinghai-Tibet Plateau and four southwestern provinces, presided over and led a number of large-scale international ecological studies, and served as editor-in-chief of Natural Resources Magazine and editor-in-chief of Human Environment Magazine of Royal Swedish Academy of Sciences.
Li Bosheng is a researcher at Institute of Botany, Chinese Academy of Sciences.
He visited the Qinghai-Tibet Plateau of Chinese Academy of Sciences many times, and made a detailed investigation on the jungle vegetation in southwest, northwest and northeast China.
Zhang Jun State Forestry Administration inquired about visiting the former deputy chief engineer of the Planning and Design Institute.
Member of China Jungle Landscape Resources Evaluation Committee, director of the Jungle Tourism and Jungle Park Branch of China Forestry Society, has been engaged in jungle inquiry and interview, forestry planning and engineering preset for a long time.
Academician Jiang Shenzhou Engineering Research Institute
Researcher, Institute of Jungle Ecology and Protection, Chinese Academy of Forestry. He has long been engaged in comprehensive investigation of primitive forest areas such as Daxinganling, western Sichuan, northern Yunnan, Tianshan Mountain and Altai Yue, presided over the positioning research of alpine dense forests in western Sichuan, tropical forests in Jianfengling, and southern bamboo forests, and established a classification system of jungle tribes under the premise of China's huge geography.
Li's Collection of chinese national geography
Write notes
Familiar with the beauty of natural interlacing
Many people have clearly known the transition zone between agriculture and animal husbandry. Because I'm trying to make up the beauty pageant of jungle and grassland, I'm thinking, what is the transition zone between jungle and grassland? As a result of questioning professionals, it is found that these two categories often cross each other, and jungle grassland is not only a clear distinction between regions, but also a very frequently used ecological viewpoint.
The natural vegetation in China has obvious zonal characteristics due to the influence of weather and altitude unevenness. For example, the monsoon area is dominated by jungle vegetation, and the non-monsoon area is dominated by grasslands and deserts. To the north of Huaihe River in Qinling Mountains, the natural scenery has changed from jungle, jungle grassland and grassland to desert from east to west because of the great difference in precipitation. South of Huaihe River in Qinling Mountains is dominated by jungle. This natural transition actually exists in many places. For example, Inner Mongolia has jungles, jungle grasslands, typical grasslands, desert grasslands and deserts from east to west. Gansu is also in the transition zone from the humid jungle grassland in the east of China to the arid desert grassland and alpine desert meadow in the west ... Just because of the lack of natural knowledge, we often turn a blind eye to the transition and crisscross that are common around us.
Interpretation of grassland professionals on the jungle grassland temporarily settled in Inner Mongolia: Meadow grassland is the best natural vegetation in Inner Mongolia, which is in the transition zone from jungle to grassland, showing the coexistence of jungle vegetation and grassland vegetation. In Wuzhumuqin Grassland of Xilingol, there is also an exhibition of "Jungle Grassland Ecological Zone" featuring the transition zone from jungle grassland to meadow grassland.
Jungle professionals' explanation of the reasons for the distribution of jungle grasslands is also concise and clear. Mr. Zhang Jun said: The distribution of vegetation in China is closely related to precipitation and altitude. Generally, the area with annual precipitation isoline greater than 400 mm is the jungle distribution area, and the area below 250 mm is the grassland and desert distribution area, and the jungle grassland distribution area is in between. In some high-altitude mountainous areas, due to different precipitation, jungles and grasslands will crisscross vertically.
Teacher Li Bosheng added: For vegetation growth, water is everything. Where there is insufficient precipitation and the jungle cannot grow naturally, the vegetation is mainly grassland, such as from the western slope of Daxing 'anling to Hulunbeier grassland and vast areas, which is a typical jungle grassland distribution area in the north temperate zone.
I still remember that the recommendation certificate returned by professionals also mentioned the problem of transition zone. Professor Kang from the School of Resources, Beijing Normal University, evaluated the primeval forest in Zhongtiaoshan, Shanxi Province as follows: it has the significance of flora transition zone and scientific research, and its appreciation value is average, with 80 points; The evaluation of spruce-fir virgin forest in Taibai Mountain of Qinling Mountains is that the forest is ancient, straight, simple and beautiful, and it is located in the flora of China's north-south climate transition zone and the east-west north-south boundary, and scored 87 points.
Indeed, in nature, neatness and equality are a kind of beauty, but transition is also a kind of beauty. The spruce forest in Ling Xue of Tianshan Mountain was supported by 2 1 among 23 professionals. The important reason is the harmonious blend of glaciers, jungles, grasslands, lakes, blue sky and white clouds. Mr. Sheng Weitong's investigation on it is: under the blue sky, there are thick green and wide spruce forests on the mountain, five flowers and clear lakes under the mountain. In winter and spring, it is particularly enchanting against the background of sunshine and snow. The Korean pine and broad-leaved mixed forest in Changbai Mountain also stands out among many candidate jungles because of its interlaced beauty.
Of course, nature has not only staggered beauty, but also complex beauty. The hot species in the tropical forests of Jianfengling and Banna, the rich species of rhododendron in the alpine forests of western Yunnan, the unparalleled living materials in the spruce forest of Linzhi in Bomigang Township, the scenery of Populus euphratica forest integrating the jungle with rivers, Gobi, Gobi, beautiful oasis and desert grassland and the illusion of its four colors, and the original natural essence in the karst jungle of Maolan in Libo all show the vitality and wonderful beauty of nature.
It seems that the transition and interlacing of human life patterns in different regions is far less abundant than that in nature. And this is precisely the infinite charm of nature.
Top name
For a long time, I have always called a tree with needles a pine tree, because it has evergreen eyes. I named it a pine tree, which is quite revolutionary. Until one time in Gongnaisi Forest Farm, I looked at the trees standing in Xueling and shouted at the pine trees. A professional who was engaged in alpine plant classification relentlessly corrected them in public: it was not a pine tree, but a spruce in Xueling.
This is the first time I heard the name Ling Xue spruce, and I was shocked by this name at that moment.
I was really persuaded by the person who named the tree. A tree is associated with clouds, but what did they say? If he doesn't have a tall figure, if he doesn't grow at the peak, then you can give him any name. The combination of cloud and fir is full of imaginary identity, at most a little romantic.
Ling Xue spruce further confirmed the source of the hero in this tree. It is mainly distributed on the ice peaks of Lingxue Mountain, West Kunlun Mountain and West Junggar Mountain on the northern and southern slopes of Tianshan Mountain in Xinjiang. Its tool 1800 km is located in Kyrgyzstan with the West Tianshan Mountains. It is the most important mountain evergreen coniferous forest in the desert belt of Central Asia, which is distributed in the mountainous area with an altitude of 1500-2800 meters. Ling Xue spruce has a majestic tree shape, generally 20-30 meters high, and the tree height can reach 60-70 meters under the most suitable conditions. In recent years, researchers from Gobi Institute of Meteorology have discovered the living tree rings of Picea schrenkiana in Tianshan Mountain, 65 1 year ago. This is the oldest tree discovered so far in Xinjiang, and it is no exaggeration to call it "the king of Tianshan spruce".
I heard that this tree was found in Tianchi area, which reminds me that I had a good contact with Ling Xue spruce in this area.
It was a few years ago, in order to find three climbers who died in Bogda Peak, we went from Haixi in Tianchi to the hinterland of Tianshan Mountain. At first glance, the spruces in Lingxueshan Mountain are arranged in accordance with the mountain trend, layered and dense, as if they were countless green keys, playing Ding Dong, a wandering river and lake. Accompanied by these tall spruces, there are some shrubs such as roses and honeysuckle that are several meters high. On different levels, they create a huge and melancholy, which makes it difficult for the sunshine in Ming Che to reach the most primitive depths.
I feel that all the trees have accumulated enough energy to die upward-there is sunshine and sky, but unfortunately the fallen trees are gradually moldy and black, but they have become hotbeds of spruce seedlings. Young trees sprouted from his trunk and gave him nutrients that he would never have in his life. With his ambition, he grows taller day by day. That's his child, finishing his unfinished business.
It is raining all over the country, which is the kind of sudden rainstorm unique to Tianshan Mountain. Thousands of rain fingers are pointing at our heads. Shout, let's all hide under the snowy spruce for shelter from the rain. Touching the rough tree body, I looked up and found that on the straight trunk, the lateral branches were arranged neatly and orderly, but the branches and leaves were silent and all gathered to form a narrow upper part of the trunk, like a godsend canopy.
Looking at Ling Xue's spruce, I initially thought he was like a swordsman in a black cloak, blocking everything with his back. The cold wind in the canyon can only gently lift the hem of the cloak, and the violent movement of branches and leaves can only make the tree look more and more silent. The cultivation and format of a swordsman have begun to appear; There is only one back, a back whose shoulders have never wavered, which makes me feel passionate and dumb.
Now I am hiding under his protection, the purple tree is a little warm, and the smell of needles hangs over me, which makes me feel a little moved for a while. This snowy spruce sheltered me from the wind and rain, which is my fate with him. I chose him among thousands of snow-covered spruces, but I walked into his arms in a billion lives.
What surprises me even more is that the soil under my feet is not as fertile as I thought, just some rotten leaves and thin soil, and most of the roots are stuck in the cold and hard rock wall. Those roots, according to the direction of joint transformation of rocks, don't miss a loophole. Turning is to travel more effectively, and detouring is to get there more directly. It's just the roots inside the schist groping for the spring flow in the little-known darkness. In Ling Xue, it takes four or five people to embrace a centuries-old spruce. I know that to make such a towering tree stand firmly on the rock wall, its roots are several times larger than the upper part of the trunk we see. And how tall the tree is and how long the roots are, which is actually not suitable here. Roots move quietly in places we know and don't know, and mountains are tied with countless ropes. When the whole mountain becomes the base of the tree, what force can shake a unique tree? In fact, a snowy spruce is what it is today because it has a complicated yesterday.
I've always wondered why Ling Xue spruce only grows in Xinjiang. The key to success must be the unique phenological achievements here. What else is there? Xinjiang people are tall and strong, and Ling Xue spruce attacks Fang Qiu. They always have something that doesn't look young. The frankness and handsomeness of Xinjiang people must be inspired by spruce, but what did Ling Xue spruce perceive from Xinjiang people?
In the pure symphony composed of snow peaks, glaciers, mountains and lakes, the neat rows of spruce chorus, majestic chorus and emerald blue song make the whole world speechless.
Textual research of professionals
The spruce forest in Lingxue Mountain of Tianshan Mountain in Xinjiang belongs to the flora of Central Asian mountainous areas, and it is the most representative jungle type in the coniferous forest belt of Tianshan Mountain, which stretches for more than 1000 kilometers. Its canopy is solid, its tree body is tall and steep, and its generation layout is huge. It has distinct elements and zonality, giving people a sense of strength, vastness, uniqueness and greatness.
Zhang Jun
Title:
1。 Ling Xue spruce has a life history of 40 million years. They are living fossils of Tianshan Mountain. From 10, the north wind of Siberia often helps here with snowflakes. In the white dress, all is silent, and the beautiful snow spruce above the trunk seems to be a serious and neat army. Its heroic momentum is shocking.
2。 Ling Xue spruce forest is widely distributed in the shady slope of Zhongshan Mountain at an altitude of 1500-2800 meters in Tianshan Mountain. This evergreen coniferous forest is tall and unique, some as high as 60-70 meters, and is known as the "tree looking up to heaven". In the desert areas of northwest China and Central Asia, the strictness of Gobi is far behind after the death of the fourth-grade green spruce.
Bangyan
Perhaps, because of the announcement of the name, I have a special feeling for pine trees. The close relatives of pine trees are Pinus tabulaeformis, Pinus elliottii, Cedar and Pinus sylvestris var. mongolica. Pinus sylvestris var. mongolica and Pinus sylvestris ... However, Korean pine is my favorite. It is lofty, heroic, straightforward, not afraid of ice and snow, and has a selfless energy and high-spirited lofty spirit.
In China, there are only two primitive tribes in the well-preserved Korean pine forest. One lives in Xiaoxing 'anling and the other in Changbai Mountain. Korean pine likes to grow in moist and loose black humus soil, which is suitable for gentle slope to high mountains and flat valleys. Its skin is brownish red with gray-black halo, and its wood is thin and soft, with red in yellow and white. Korean pine is famous for its reddish material. Its biggest and unique feature is that the material layout is unchanged, the texture is flat, the luster is gorgeous, the corrosion resistance is strong, the expansion and contraction force is small, and it is easy to process and not easy to crack. It can be used in construction, shipbuilding, vehicles, roads and tools. It is the only good material that remains unchanged under the influence of dry and wet conditions.
Korean pine is a native tree species in northeast China, belonging to the five-needled pine formation of Pinaceae and an ancient branch of Pinus. In the primeval jungle of Changbai Mountain, Korean pine is the top plant, and there are more than ten kinds of tree species such as spruce, Korean spruce, Tilia amurensis, Betula platyphylla and Fraxinus mandshurica living on the top of the jungle. There are more than 20 species of shrubs under the forest, such as Corylus pubescens, and the herbaceous layer on the ground is more abundant. Every year in late June, yellow smoke is often filled over the virgin forest of Korean pine, covering the whole forest like a large yellow umbrella. This yellow smog is caused by the pollen of 10,000 Korean pine trees. On the tall Korean pine, there are countless female flowers and male flowers, the female flowers are in the upper part of the trunk and the male flowers are in the lower part of the trunk. In early summer, the flowers bloom and yellow male pollen floats into the air. On each tiny pollen grain, there are two bulging small air sacs, so it is lighter than air. It can float to the upper part of the trunk to combine with the female flowers, or it can float to the sky above the canopy, where it floats with the airflow. So what we see is yellow smoke.
Appreciate and carefully experience the tribal beauty, individual beauty and primitive beauty of Korean pine in Changbai Mountain, and can't help but go to Lushui River. In the operation area of Luzhuhe Forestry Bureau, there is a Korean pine king, which is over 480 years old. Whenever many people come here, they will "call" it with an expression of worship. This Korean pine is 35.5 meters high and DBH 1.24 meters. Three people hugged each other. According to historical records, the Huoyakou in Changbai Mountain erupted three times at 1597, 1668 and 1702, but this "king of Korean pine" not far from Tianchi has survived five disasters and survived tenaciously. Calendars float down one by one, but this old Korean pine is proudly green, proudly meticulous, proudly firm, hard and proudly contains infinite power.
Korean pine mother grass in Luzhu River is the largest Korean pine mother grass in China as stipulated by the State 1964, with a plane or object surface of 1 1764 hectares. It is a natural excellent gene bank. Professor Wang Zhan, a famous ecologist, said: "Korean pine is a treasure all over the body, and more importantly, its economic value transcends itself." In particular, Korean pine has a large storage capacity, and a Korean pine is a small reservoir. In the Korean pine forest, there is no runoff on the surface for the next two hours, and it is stored by the roots of Korean pine. "
Primitive forests are very rare on our planet. Korean pine primeval forest in Changbai Mountain is a precious tribe among the few primeval forests in China. In a geographical area, the oldest jungle that is least disturbed by human beings is called virgin forest. This is a kind of trance, relative and lacking in measurement. But there are also many that are the easiest to judge and the most meaningful.
The virgin forest is a world. The roots of the jungle don't like singleness, and the prosperity of the jungle is inseparable from the disorder and diversity of its internal layout. The "primitive" landscape composed of vast old trees and grasses, various spring and autumn trees and dead trees, fallen trees and deep litter layers in the Korean pine virgin forest in Changbai Mountain not only provides a variety of "habitats", but also becomes an irreplaceable basic premise for covering a variety of animals. Moreover, in terms of the increased demand for "tropical nature" on the seventh day of the first month, the virgin forest has its unparalleled ecological value.
The natural evolution of ecosystem is a natural process of advanced biological evolution. It is in this process of natural succession that Korean pine shows its individual beauty, primitive beauty and tribal beauty with its unique charm.
The temporal and spatial significance of Korean pine virgin forest in Changbai Mountain is extraordinary. The perfection of Korean pine virgin forest lies not in its surface scenery, not in how many excellent materials it provides us, but in its ingenious and orderly arrangement of tribal details and unchangeable natural laws, and in its inspiration, courage, energy and strength.
Textual research of professionals
Korean pine broad-leaved mixed forest in Changbai Mountain, Jilin Province is the most representative jungle type in China and even the temperate zone of the Far East. It is famous for its rich species, diverse jungle types, huge tribal layout and gorgeous scenery. Wenhua Li
The primeval, magnificent and wonderful nature of this jungle deserves praise. Mixed coniferous and broad-leaved forests are rare, and primitive mixed coniferous and broad-leaved forests are even more difficult to see.
Zheng Haishui (researcher, Institute of Tropical Forestry, Chinese Academy of Forestry)
Title:
1。 The mixing of Korean pine and broad-leaved forest in Changbai Mountain reveals a three-dimensional beauty and a combined beauty. The dark brown jungle in mountainous areas has fertile soil, rich plant species and huge tribal layout. In addition to Korean pine, a native tree species in Northeast China, there are other broad-leaved associated tree species such as Tilia amurensis, Quercus mongolica, Ulmus chunensis and Acer. The tribe has a huge vertical layout, and the proportion of conifers and broadleaved trees in the forest changes regularly with altitude. With the change of seasons, the colors of classes have put gorgeous clothes on Changbai Mountain.
2。 Young Korean pine trees like shade and grow in the dark under broad-leaved forest; The tree is sunny, its brush is unique, and its branches are old and tall. Its seasonal colors are varied, especially in the Mid-Autumn Festival, and the leaf colors of mixed tree species are very colorful. ㈠
The large storage capacity of Korean pine lies in its unique rich roots, and even a Korean pine is a small reservoir. In the Korean pine forest, there is no runoff on the surface for the next two hours. They are all stored by the roots of Korean pine, which is an important guarantee for their flourishing and long life.
third place
Surrounded by the South China Sea, Hainan Island, which has the reputation of "Oriental Hawaii", is full of sunshine, coconut groves and sea rhyme beaches, showing the richness of the South China; Hainan Island, a bright green pearl, its green comes from the vast and mysterious tropical forest on the island. The tropical forest in Jianfengling forest area in the southwest of Hainan Island is the location of Huaying, a green pearl.
The distribution plane or surface of the tropical forest in Jianfengling is more than 400 square kilometers, which is constantly rising and sinking and magnificent. When you step into the rainforest, you can enjoy the unique rainforest scenery everywhere. What's more, there are 449 colorful butterflies in the tropical forest of Jianfengling, which spans Taiwan Province Province and is known as the "Butterfly Kingdom".
Different from the jungle composed of a tree species in Dadu North Banner, the biodiversity index of the tropical forest in Jianfengling is slightly higher than that of the southern subtropical forest tribes such as India and Myanmar, but it is equivalent to the tropical forests in southern East Asia and South America, with more than 250 plant species per hectare.
It is precisely because of its variety and the different individual plants in spring and autumn that the huge layout of tropical forest tribes in Jianfengling is caused. There is no obvious boundary between layers of trees, and the upper part of the trunk has continuous characteristics from bottom to top. If you climb to the commanding heights and carefully observe the surface of tropical forests, you will find that the constantly undulating canopy will be uneven. The reason for this phenomenon is that some tall old individuals in tropical forests naturally die out, or some tall individuals are blown down after the typhoon, thus forming gaps. The newer species in the gap gradually recovered, which made the vertical layout of the tribe change continuously, and on the surface, a landscape with crown not satisfied with bulge was formed.
In the tropics, the weather changes greatly in a year, and plants can grow in four seasons. The flowers and fruits of various plants are actually in different periods, showing a four-step spring-like situation. Similarly, bark doesn't need to experience extremely cold winter. Its skin is very thin and its color is gray. Moreover, the more prominent this gray tree phenomenon is, the older the white-light rain forest is, which is one of the important differences between it and the northern jungle.
Hanging garden is an important feature of tropical forest in Jianfengling, and its formation is also related to species diversity. In the tropical forest, in order to strive for natural resources such as sunlight and water, plants with different life forms have emerged: tall trees, shrubs and herbs under the forest, as well as vines, epiphytes and parasitic plants with different shapes. Lianas often climb to the top of the crown in different forms, while parasitic and epiphytic plants grow on branches to form aerial flower beds. The hanging garden features bird's nest fern and cliff fern. Usually, a plant ball with a diameter of 1-2 meters is formed on the tree body, and ferns and other plants with a book attached below are very beautiful and magnificent.
In Jianfengling, many tall trees have roots, some of which are as high as 4-5 meters. Up to now, there is no scientific view on the formation of bangen, including the theory of nutritional composition and mechanics, which needs further exploration. Column roots, as the name implies, play a supporting role. The famous column-root plants in Jianfengling are tall-rooted English, Dilun peach and various banyan trees.
Strangulation is also a unique ecological phenomenon in tropical forests, and Ficus altissima is the most typical strangulation plant. After the ovule of Ficus microcarpa is swallowed by birds, bird droppings are left on the branches of some big trees, so that the ovule existing in the feces can take root and sprout at a suitable time, and grow into green seedlings with the help of the debris of feces and bark. After the seedlings grow up gradually, the banyan tree produces aerial roots. On the one hand, aerial roots can grow vertically to unfamiliar ground, absorb nutrients from the soil after landing, and form columnar roots when they grow up. The most famous one in Jianfengling is Deer Tree. On the other hand, aerial roots can grow downward near the host tree. After reaching the ground, these aerial roots will become stronger and thicker, forming a network around the host tree to wind and grind the roots. Finally, the host tree is completely surrounded and even seriously affects the normal growth of the host tree, resulting in strangulation, and finally the host tree is hanged. A large amount of nutrients produced by the decomposition of trees after extinction can be used for the normal growth of other trees, such as very tall ladder trees and pig cage trees.
The tropical forest in Jianfengling not only has unique scenery, but also has outstanding ecological and environmental protection effects. The research results of Jianfengling National Forest Ecological Station show that tropical forest is an important storage place of atmospheric carbonic anhydride, and the net carbon content per hectare can reach more than 340 tons, so sheltering tropical forest can effectively reduce the carbon content in the atmosphere. In addition, tropical forests can effectively regulate runoff, store and regulate a large amount of rainwater brought by rainy season and typhoon rainstorm, make up for drought in dry season, and provide endless water sources for agricultural production and residents' life in the surrounding areas of tropical forests. Of course, tropical forests also have extremely high water-soil connection effect and outstanding weather environment improvement effect. Primitive forest belongs to the type of warm winter and cool summer, and the annual temperature is low; The average content of negative ions in tropical forests is extremely high, which is more helpful to the human body. Therefore, the tropical forest in Jianfengling is a good place for eco-tourism and tropical nature.
Textual research of professionals
Jianfengling tropical forest is rich in biodiversity and is an important species gene bank. The tropical forests in Hainan Island are typical tropical northern marginal rainforests, mainly distributed in Jianfengling at an altitude of 350-950 meters. Its forest is dense and steep, and the shrubs in the forest are huge and dense. The area with concentrated tropical forests in Jianfengling has long been listed as a natural protection forest area of jungle ecological type, which has been well protected for its primitiveness, diversity, naturalness and mystery. Zhang Jun
Jianfengling tropical forest is different from Banna tropical forest. Jianfengling belongs to the maritime climate zone, and the characteristics of rainforest are more obvious; Banna belongs to monsoon forest. Banna tropical forest is more famous than Jianfengling tropical forest because of elephants, while Jianfengling gibbon is not as famous as Banna's elephants. But as far as the jungle itself is concerned, the jungle in Jianfengling is stronger than Banna. Zheng haishui
Title:
1。 In the tropical forest of Jianfengling, ancient trees are towering and have a huge appearance. The uneven crown is a gap formed by fallen trees. It provides an important premise for the renewal of trees, and also brings a ray of light to the overwhelming primitive rain forest, allowing us to see the unique and peculiar conditions in the rain forest, such as roots, flowers of old trees, strangulation and so on.
2。 Asphyxiation is a unique ecological phenomenon in tropical forests. Stepping into the tropical jungle, a large number of aerial roots set off its unique magnificent scenery (1). The fruit of Ficus microcarpa in the forest is the goal pursued by many birds and animals, because the ovule is very small and the seed shell is firm and hard. They spread around with the feces of birds and animals, and germinate and grow on other branches in a humid environment. Primary air roots are as thin as hemp thread, which can absorb moisture and nutrients in the air and become epiphytes. Then the hanging air roots become longer and longer until they take root in human soil, then thicken and become tree-like pillars. The roots attached to the tree will grow numerous lateral roots to surround the tree, tightly wrap it and attach it to the tree and start strangulation. Strangled plants attack strangled trees in all directions from underground, the ground and even the upper part of the trunk, and almost all strangled plants are spared. Strangled bodies are replaced by strangled bodies, and strangled bodies are gradually enjoyed as nutrients.