The forest is the green lungs of the city, but the green map of the earth is fading.

The "green lungs" of the city

Forests have the role of dust removal and filtration of sewage.
The forest is a natural muffler. Planting trees on city streets can reduce noise.
The forest changes the low altitude airflow, has the function which prevents the sandstorm and reduces the flood, the conservation water source and the conservation.
Forests are the best places for all kinds of animals and plants to thrive, providing and protecting the diversity of life.

The forest is a natural oxygen production plant. Each cubic metre of wood grown in the forest absorbs about 850 kilograms of carbon dioxide in the atmosphere.
The forest can purify the air. Many trees have the ability to absorb all kinds of harmful gases, thus reducing the harm to human health.
Forests have natural epidemic prevention functions. For example, a hectare of Juniper Berlin can secrete 30 kilograms of bactericide a day, killing diphtheria, tuberculosis, dysentery and other germs.

Forests have a moderating effect on climate. Dense forest canopy in summer can absorb and scatter, reflect off part of the solar radiation, reduce ground temperature. Although most of the forest leaves withered in winter, but the dense branches can still reduce the wind speed blowing over the ground, so that the air flow reduced, play a role in the preservation of moisture.

World Forest Day
"World Forest Day" is also translated into "World Forestry Festival", and English is the "worlds Dara Days". This anniversary was introduced in 1971 by Spain and unanimously adopted at the TENERIFO Conference of the European Agricultural Union. The United Nations Food and Agriculture Organization (FAO) formally confirmed the same year in November.
The birth of "World Forest Day" marks the awakening of the forest problem.
There is a general consensus that "forests can make a huge contribution to humankind, and it has enormous potential in many areas, such as environmental security, poverty eradication and improved human living standards." "For the long-term coexistence of mankind and forests, the global imperative:" Maintain and increase forest cover, restore and improve forest function, strengthen farming to make up for forest development and use, and pay attention to the rights of forest indigenous people and forest workers. ”

Current situation of forest in China
The forest area of our country occupies the fifth place in the world. China occupies 7.2% of the world, 134 million hectares of forest area, 3.9% of the world and 14% of forest cover. China's per capita forest area occupies the 119th place in the world. The world occupies 0.6 hectares of forest per capita, with 0.5 hectares per capita in developing countries and 1.07 hectares per capita in developed countries.
China's total forest volume occupies the 8th place in the world. China's total forest volume of 9.789 billion cubic meters, accounting for the world's total accumulation of forest 384 billion cubic meters of 2.55%. The level of forest average hectares in China is lower than the world average level. The average volume of forest per hectare in China is 96 cubic meters, and the average forest volume per hectare in the world is 114 cubic meters.
Animals in the forest

Forest protection
Satellite forest map warns the Earth's green territory is fading

Forest protection refers to the measures to prevent and eliminate all kinds of forest damage and disasters, to ensure the healthy growth of trees, and to avoid or reduce the loss of forest resources. Forest protection is an important part of forest work. The main contents include the prevention and elimination of forest fires, tree pests and diseases, forest Shing and the damage of disastrous weather to forests. The precautionary approach should be adopted in forest protection and should be actively removed after the occurrence of disasters. Forest protection of the 16-word policy: "Prevention, scientific control, legal governance, promote health." ”
Production activities for the prevention or control of forest natural disasters. One of the contents of forest management. Forest disasters include diseases, pests, birds, animal pests, fire, smoke and meteorological disasters (see forest diseases, forest pests, forest fires, forest Shing, forest meteorological disasters), in which diseases, insects and fires are the greatest threat to forests.

The ten most beautiful forests in China

First place: Tianshan Snow Ridge Spruce Forest
Snow Ridge Spruce is a unique tree species in the forest of the Tianshan Mountains. Deep in the towering Tianshan mountains, it vigorous and upright, four seasons Green, climbing slope of life, endless, like a mountain along with the green Great Wall built. The wind blows the Linhai, The Pines Sound, the Green wave fluctuation, its potential is like the tide. Snow Ridge spruce, evergreen trees, needle-shaped leaves, slightly curved, fruit ball for long oval, Brown. The Snow ridge Spruce in the Tianshan Mountains is said to have migrated from the Qinghai-Tibet plateau more than 40 million years ago to become a unique and spectacular forest.

Second place: Pinus koraiensis broad-leaved Forest in Changbai Mountain
Pinus koraiensis is a rare tree species in northeast China, which is the most representative type of forest in northeast China, with Pinus koraiensis as the main coniferous and broad-leaved mixed forests. In the 1958, Heilongjiang Province in the Red pine forest, the most concentrated in the south slope of the Xiao Hinggan Mountains, established the abundant forest nature reserve, an area of 18400 hectares.

Third place: Tropical rainforest in Tsim Feng Ling
The tropical rainforest is located in the northern part of Sanya, Ledong County north of the border with the Dongfang, is the west of Hainan Island near the Beibu Gulf of a mountainous area. In this mysterious forest, 75% of Hainan's plants and 85% of wildlife species are grown and bred. The area of the Peak Ridge is currently the largest tropical forest in China, and its vegetation integrity and biodiversity are among the highest in the country, no less than the Amazon, Congo and south-East Asian rainforests.
The most famous flora and fauna in the rainforest is the "seven musketeers" and the "13 kingpin". The so-called "Seven musketeers" refers to seven kinds of national protection animals: black Crown Gibbons, Hainan slope deer, clouded leopard, monitor lizard, Boa, black bear and Peacock pheasant. "13 Tai Bao" refers to 13 kinds of national level protection plants: Alsophila, Hainan Alsophila, White Alsophila, big feather alsophila, slope base, Hainan coarse Torreya, mother, son, flower pear, wild litchi, see blood seal throat, green husk, Hainan Cycas.

Fourth place: White Horse Snow Mountain Azalea Forest
White Horse Snow Mountain Nature Reserve is located in the middle of the Hengduan Mountains, the northern part of the peak White Horse snow-capped mountains (also known as Pak snow-capped mountains) and the people of the sands Jiangpo noodles. The climate of the protected area is obvious in dry and wet seasons, with less rainfall and concentration, and the climate changes with elevation, which forms the characteristics of warm and dry valley and cold Mountain. Therefore, the natural landscape vertical spectrum is very obvious.

Fifth name: Bomi Gang Xiang Linzhi spruce forest
Bomi Hillock Township is located in the northeast of the Yarlung Zangbo River, Hyperion the middle and lower reaches of Tibet cloth. Hyperion Tibetan cloth from the northeast to the southwest through the mountains and lush Lin, north of the warm air flow in this formation of abundant precipitation and mild climate, as the Qinghai-Tibet Plateau on the development of modern glaciers, one of the central region, the formation of China's rare marine glaciers.  The change of forest vertical zone is also obvious, along with elevation, there are coniferous and broad-leaved mixed forest belt, mountain conifer forest, dark coniferous forest, mainly distributing high yielding forest and economic plants such as alpine pine, lacquer tree, maple, seabuckthorn, spruce, fir and so on. The reserve also contains a wealth of animal resources, such as takin, leopards, sheep, black bears, macaques, snow chickens, musk deer, parrots, fredii yellow and suede.

Sixth place: Luntai Populus euphratica Forest
Luntai County is located in the south of the Tianshan Mountains, the northern edge of the Tarim Basin, where the world's largest, most densely distributed, surviving the best "tertiary living fossil"-more than 400,000 mu of natural Populus euphratica forest. Populus Euphratica Forest is a typical type of desert forest meadow vegetation in Tarim He watershed, which is distributed from upstream river valley to downstream riverbed. Although the structure of Populus Euphratica forest is relatively simple, it has strong ecological imprint. Whether it is the glow of the sun, or the body draped in the sunset, it gives people the mystique at the same time, but also let people read the vitality and hope.

Seventh place: Tropical Rainforest in Xishuangbanna
Xishuangbanna Rainforest National Park is located in 3 counties (city) territory, by Menghai, Meng-Yang, Connaught, Meng Lun, Mengla, Shang six large areas of the composition of the total area 2854.21km2 is our country's first rainforest National park. The planning area of the National Park Recreation Area is 69.96km2, which accounts for 2.45% of the total area of the national park, and the overall layout is "an eco-tourism distributing center, five core ecotourism scenic spots (brand), three main ecotourism routes, six eco-tourism areas, Nine Eco-tourism key development projects as well as three major categories of eco-tourism products. Among them, the wild Elephant Valley, the lookout Day tree, the original forest Park already is the famous ecological tourist attraction.

Eighth place: Libo Karst Forest
is located in the south of Guizhou, is currently in China and even the world rare in the middle subtropical karst primary strong residual forest. The ecological system formed by the combination of forest and karst landform not only provides fresh data for the research of scientific workers, but also gives us the enjoyment of beauty. Due to its special geographical location, warm and humid climate and karst geological and geomorphic effects, the formation of a rich and diverse niche. Both exposed to rock and the climate changes the big stone bud, the avalanche big stone arid habitat, also has the soil layer to be relatively deep, the nutrient element is rich, the organic matter content is high, the climate changes the small rock groove, the stone seam moist fertile habitat; both sunny bright mirrors and dark habitats where direct light is difficult to reach. The diversity of niche leads to species richness and complex structure of ecosystem. In the floristic composition, the flora and fauna are in the transition zone, thus the resources are abundant.

Nineth Place: Xingan Larch Forest in northern daxinganling
The deciduous coniferous forest in northern daxinganling is part of the boreal coniferous forest in Eurasia, which belongs to the southern part of the deciduous coniferous forest in the south of the eastern Siberian region. Daxinganling mountain altitude of about 600-1000 meters, some peaks close to 1400 meters. The lower part of the mountain is brown forest soil, and the upper portion is gray brown coniferous forest soil, all of which are acidic. There is a distinct vertical segregation of vegetation here. The valley below 600 meters above sea level is a larch forest containing Quercus mongolica. Other tree species are black birch, Shanyang, Tilia amurensis, Manchurian Ash, Phellodendron and so on. Undergrowth shrub has two color Hu branch, hazelnut, Mao Jin and so on.

Tenth place: Shu South Bamboo Sea
Cui Jia the world of Shu South Bamboo Sea, located in the southern Sichuan Yibin territory, the area of 120 square kilometers, the core scenic 44 square kilometers, a total of eight major scenic spots of the two major scenic spots 134. There are 58 kinds of bamboo in the scenic area, more than 70,000 acres, is China's largest set of landscapes, caves, lakes, waterfalls in one, with a long history of the human landscape of the largest original "Green Bamboo Park", vegetation coverage of 87%, for China's high air anion content of the natural oxygen bar!
(Source: Yenxin   Editor: Lian Tao)