Underground forest

Underground forest is a National Nature Reserve, also known as "crater primeval forest". It is located about 50 kilometers northwest of Jingpo Lake in Heilongjiang Province, in the deep mountains on the southeast slope of zhangguangcai mountain, with an altitude of about 1000 meters. When visitors step on the southeast slope of zhangguangcai mountain, go up the mountain road and climb to the top of the volcano, huge craters will suddenly appear in front of them. According to the investigation of scientists, these craters are distributed from northeast to southwest, with a total of 10 in a narrow strip 40 km long and 5 km wide. They are 400 to 550 meters in diameter and 100 to 200 meters deep. Among them, crater 3 is the largest, with a diameter of 550 meters and a depth of 200 meters. Jingpo volcano is a dormant volcano. It erupted about 10000 years ago and formed 10 craters of different sizes and shapes. After thousands of years of vicissitudes, it has formed a unique and rare underground forest, so it is called the crater primeval forest. Because of the particularity of its environment, it has not only become a beautiful scenic spot, but also an ideal scientific research base for geographers, historians and biologists at home and abroad. The volcanic forest is composed of seven pits of different sizes, with a total area of more than 60000 hectares. These craters are distributed from northeast to southwest in a narrow strip of 40 km long and 5 km wide, with a total of 10 craters. Their alignment ranges from? 00 m to 550 m, and their depth ranges from 100 m to 200 m. Among them, crater 3 is the largest, with a diameter of 550 meters and a depth of 200 meters. Hard lava in the crater, covered with layers of Korean pine, Fraxinus mandshurica, purple forging, yellow pineapple, etc. In addition, there are many precious animals, such as Amur tiger, black bear, red deer, Swertia, spores and so on

Underground forest

Underground forest, also known as "Crater National Forest Park", is listed as a National Nature Reserve together with Jingpo Lake area of more than 1200 square kilometers. It is located about 50 kilometers northwest of Jingpo Lake in Mudanjiang City, Heilongjiang Province, and in the deep mountains on the southeast slope of zhangguangcai mountain, with an altitude of about 1000 meters.

When visitors step on the southeast slope of zhangguangcai mountain, go up the mountain road and climb to the top of the volcano, huge craters will suddenly appear in front of them. According to the investigation of scientists, after thousands of years of vicissitudes, the volcano erupted about 10000 years ago, forming a unique and rare "underground forest", so it is called the crater primeval forest. These craters are distributed from northeast to southwest in a narrow strip of 40 km long and 5 km wide, with a total of 10 craters. They are 400 to 550 meters in diameter and 100 to 200 meters deep. Among them, crater 3 is the largest, with a diameter of 550 meters and a depth of 200 meters.

Cause of formation

There are different opinions on the causes of underground forest, and it is still difficult to reach a conclusion. But it is quite reasonable and convincing. According to this theory, the rocks on the inner wall of the crater, after long-term weathering and erosion, have become fertile soil together with volcanic ash and other materials, while the birds flying over the crater with various plant seeds become natural planters. For so long, the inner wall of the crater is finally covered with trees, forming a forest. Because of its special environment, it has not only become a beautiful scenic spot, but also an ideal scientific research base for geographers, historians and biologists at home and abroad.

Resource overview

Underground forest is rich in plant resources, such as Korean pine, yellow larch, Tilia amurensis, Fraxinus mandshurica, yellow pineapple and other valuable wood; ginseng, astragalus, Panax notoginseng, Schisandra and other valuable medicinal materials; Auricularia auricula, Hazel mushroom, fern and other valuable mountain treasures.

Underground forest is also rich in animal resources. When visitors climb down the stairs, they often see birds flying, snakes crawling, rabbits jumping and rats passing through the forest, which is full of vitality. According to the investigation of scientists, there are not only the small animals mentioned above, but also big animals such as red deer, wild boar and black bear, and even rare national protected animals such as Qingyang and northeast tiger, which can be called "underground zoo".

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The forest is magnificent, covering the sky and the sun. The wind comes like a green sea, and the night is still like a solid wall. That is the forest, the earth has not yet created human, but has created it, the proud representative of the plant world.

But why do you grow up here? In this dark and deep canyon. In order to find you, I climbed the high mountains, through the long caves. Curling clouds floating around me, and your vibrant treetop, but just enough to reach my toes, not as high as the grass on the hillside. You don't seem to see the bottom and the width. No one has seen your whole picture. Although you have precious trees, the priceless wealth of nature, it's unfair that you are silent and independent. You are a rare underground forest in the world. Where did you come from? What misfortune did you suffer that made you sink into this dark abyss and survive such a long time?

It must have been a long time ago. At that time, maybe it was a fragrant grassland, maybe it was a beautiful lake, beautiful nature, and everything was prosperous. But suddenly a huge volcanic eruption changed everything in a flash. The wind is blowing, the waves are burning, the sand and rocks are flying, the magma is overflowing, the sky is dark and the earth is collapsing, it seems that it is the end of the world

People don't know why the earth is so angry. Maybe it's just because it likes sports. Ah, listen to the gloomy giant wood snap in the storm, and see the "blood" from the center of the earth ejecting into the sky. Even the sun should be awed by the magnificent momentum.

However, it finally calmed down. So everything calmed down. Calm, the grass into a mirror like Lake, the bottom of the lake has become a strange shape of rock, it melts rocks into gravel, the steep mountains into the abyss. Everything changed: the green forest was replaced by charred stones, and the beautiful wild flowers were covered with black magma. What a quiet world! There are no birds chirping, no leaves rustling

Just like all the traces left by the volcanic eruption, here, in the mountain forest 180 km away from Jingpo Lake in Ning'an County, Heilongjiang Province, the long silent volcano left seven irregular pits, surrounded by cliffs, dangerous rocks and jagged rocks. It is 100 meters deep and 30 or 40 meters shallow. The bottom of the valley is wide and strewn with boulders that collapsed when the mountains and the ground shook ten thousand years ago.

Volcanoes create canyons and abysses, but they leave no life. Mountains are bare, valleys are bare, and the sun is still high, but mountains have no color, valleys have no color

Years later, the wind turned the surface of the rock on the top of the mountain into soil, barren and fine; it took no pains to bring seeds from the dense forest in the distance, so that the rain could wake them up. The green seedlings on the slope are liked by the sunshine, and the sunshine caresses them generously. As a result, the gray and black volcanic rocks turned green. On the cliffs and mountains, there was a lush area, and the birds came back to sing life.

However, the dark Canyon is still the same. It was dark, bare, gloomy and quiet. The woodcutter could hear the echo of the spring in the cave at the bottom of the valley. The hunter followed the wolf and the tiger. So far, there was nothing but thick moss. Thousands of years later, life in nature is everywhere, but the canyon is not qualified to get even a little grass

Maybe the birds skimmed over the cliff, and the grass stem in their mouth once dropped grass seeds here, but the grass seeds didn't germinate; maybe the spring flowed through the bottom of the valley and carried a few flower seeds, but the little flowers didn't grow up. It is said that the sunshine is fair, but here it is not, no! It indulges in the high mountains and the cheers of Hirano, but has never been to the bottom of this deep canyon. It is stingy to linger in the mouth of the cliff, pretending to nod. It has never noticed the collapse of the pit, and has long forgotten it. Even if there are a few beams of light at noon in summer, peeping at the bottom of the valley due to curiosity, it is also squinting, not a few threads of warmth.

The sun doesn't like canyons. Don't you know that?

Is sunshine fair? Don't you understand?

Unfortunately, the canyon could have turned into a small lake like a string of pearls. Like the "Wudalianchi" barrier lake in dedu County, it could easily win people's praise. But it doesn't. It lies quietly under the broken wall and is not eager to show off in the world. It lives in seclusion among the mountains and seems to be expecting something. What is it expecting and hoping for?

The gale in the sky passed here and stopped. Without waiting for inquiry, I soon understood it. It grinds the rocks at the mouth of the pit into powder and scatters them into the crevices of the canyon bit by bit.

The clean mountain spring accompanies it day by day, and finally understands it. It flows out of the cave, and drops of it seep into the cracks, turning the crushed stone powder into soil.

The cypress on the top of the mountain looks at it from time to time. Although they are speechless, they are interlinked. It admires the deep character of the canyon, the tenacious perseverance of the canyon, the preference of the sun and the injustice of the abyss. In autumn, when it bears heavy seeds, it resolutely jumps into the embrace of the canyon and dedicates itself to the "underground" where there is no sunshine. Perhaps it is inspired by the pure birch, tall and straight poplar, and beautiful scenery

Chinese PinYin : Di Xia Sen Lin