1. China lacks forest resources and lacks papermaking raw materials. China has a population of 1.2 billion and a large amount of paper. Since the 1990s, with the rapid development of the economy, the amount of paper used has increased. According to statistics, in 1980 China’s paper consumption was 6.2 million tons, 6.29 kilograms per capita; in 1998 it increased to 32.69 million tons, 26.5 kilograms per capita. The maintenance of this drastic increase in consumption mainly depends on imports. Therefore, China imports paper from abroad every year, and consumes a large amount of foreign exchange funds. In 1993, US$1.6 billion was spent on foreign exchange purchases, 2.5 billion U.S. dollars in 1994, and 4.8 billion U.S. dollars in 1996. In 1998, the flood escalated the natural forest ban, and the consumption of imported paper and timber reached 11.7 billion U.S. dollars, equivalent to 97 billion yuan. . The huge amount of money of 100 billion yuan was actually spent on paper. It was quite an investment in the Three Gorges of the Yangtze River. The construction of the Three Gorges on the Yangtze River is only half a century old before it is ready for construction. However, in the year when we buy paper, it is equivalent to building a Three Gorges on the Yangtze River. This amazing cost is unbearable.
In view of this, the State Council has repeatedly studied ways to get rid of this heavy burden, hoping that forestry, like steel and petroleum, will take a few years to fight for a turnaround and realize self-reliance. However, it is easier said than that, as wood production does not have ready-made reserves such as mining and oil production, it is only necessary to dig down to the ground. Wood is a product of photosynthesis and the carrier relies on a forest that has been growing up into decades. China lacks sufficient forests, and clothing is not covered with soil (the soil). The forest coverage rate is only 13%. In the rainy season, the rivers are flooded with rivers and rivers, and the existing forests are so small that they cannot play an ecological barrier and maintain the role of water and soil, let alone send them to papermaking fields. This is China's national conditions: the lack of forest resources, there is no papermaking raw materials, had no choice but to import, it is costly.
2. There are many paper mills, most of which are grass mills. China has a large amount of paper in serious pollution. It was 32.69 million tons in 1998 and it is the second largest paper-consuming country in the world. However, the average per capita consumption is 26.5 kilograms, which is only half of the 53 kilograms consumed by the world. Moreover, among the 32.69 million tons, the paper is not mainly paper made of wood pulp. The proportion of wood pulp is very small, less than 10%, and more than 50% of the ingredients are made from non-wood pulp raw materials such as straw and wheat straw. Such raw materials are easily processed. However, papermaking wastewater is difficult to deal with and it has to be discharged into rivers, lakes and seas, causing great harm to the ecological environment. As grass pulp plants use grass as pulp, they are easily sourced and the equipment is simple, and they can be launched without huge amounts of money. Therefore, small grass pulp mills in China are 5,360 in 1990 and more than 20,000 in 1997. It is the hero of papermaking in our country. Because 65% of paper consumption in China is supported by them, if not for them, the consumption of imported paper in China will inevitably be greater.
However, from the point of view of the polluted environment, they have no responsibility to escape. They set up factories everywhere, 95% of the factories are still below 10,000 tons, and the paper mills are heavily polluted. The green mountains are polluted by the black smoke they emit. A mess. Recently, the State Council ordered the closing of a grass pulp mill below 5,000 tons, which is certainly a wise move. However, more than half of the paper consumption depends on the grass pulp mill. How to arrange the layoff of hundreds of thousands of employees is another difficult problem. It is difficult for the world to have the best of both worlds and to overcome the dilemma of non-wood papermaking. This is probably a feature of China's national papermaking situation.
3. Lin Linlin, Lin Paper, China's forestry and paper industry has introduced some policies in order to solve the papermaking problem. In the 1950s, it emulated the mining and oil production. The geological department discovered the minerals to find out the raw materials, and then handed them to specialized departments. Go mining. Indeed, the Ministry of Oil took out oil in the 1960s; the Ministry of Metallurgy took out steel in the 1970s; in the 1990s, China's steelmaking reached 100 million tons. In the same model, the afforestation and papermaking issue was first proposed by afforestation and papermaking. That is to say, the forest was taken out by the Ministry of Forestry and taken out of wood and sent to the Ministry of Light Industry for paper making. However, due to the slow growth of trees and the long period of afforestation, the Ministry of Light Industry, which has been waiting for 10 to 20 years, still has no raw materials at the end, and papermaking has become a no-till. Later, the state changed its policies. In the 1980s, the state encouraged the forestry departments to directly afforest and make paper without having to distribute the large profits of papermaking to the Ministry of Light Industry. The Ministry of Light Industry could also directly invest in afforestation, thus mobilizing the enthusiasm and relaxing policies. Go ahead. However, this arrangement did not work. The amount of paper used in China has risen sharply. Papermaking is still dominated by straw pulp. Wood pulp depends on imports. In the 1990s, it was suggested to go to Thailand and Malaysia to solve the problem of wood pulp production and prepare to take one billion US dollars to afforestation. This is the third phase of the production of foreign paper. However, China’s land and labor force are probably the cheapest in the world. It may be even harder to do things that cannot be accomplished in China. At the end, it will be fruitless.
The story of forest afforestation, forestry and papermaking, and production of foreign forests has not been resolved after half a century. On the other hand, the records of China's imported pulp are skyrocketing and must not be reversed. It is not worth the 100 billion yuan spent on paper. The Republic is unbearably burdened with this kind of burden. Therefore, the Central Minister stated that it is necessary to treat pulp raw materials as a major issue and quickly seize their own forestry science and technology development work. This is exactly the right point and shows that the solution to the problem of China’s papermaking industry must be based on China’s own forestry. Starting from scientific research and taking the road of self-reliant breeding, this is the solution.
4. To solve the problem of Chinese papermaking raw materials, it is necessary to grasp from forestry breeding as if to solve literature, dance, and computer problems. To solve the problem of China's papermaking raw materials, it is necessary to grasp the origin of forestry tree breeding. This is another feature of China's papermaking national conditions, and it is also a place where China distinguishes itself from other countries. Because China is a Shaolin country, there are no ready-made forests. Unlike the United States and Canada, the raw materials used for their papermaking are populus tremuloides. They are rich in resources, and they have been cut into pieces. Films have been cut down by several generations, so their papermaking problem is simply to build factories. In China, it is not the case that China's papermaking industry must start with solving the species of papermaking raw materials. In order to get rid of the wild species, the improved seed species are used to produce wood with the fastest tree species in the shortest period of time. This results in paper tree species and papermaking varieties.
The tree species problem is first of all to have a fast-growing and high-yield product, followed by a material-to-road method; and the variety problem is based on the fast-growing and high-yielding material-to-road method, and the varieties with short cycle, good resistance, and high wood pulp yield are selected. China has no ready-made wood pulp varieties that meet the above requirements. This must be solved from the standpoint of forest tree breeding and select the ideal papermaking varieties. This is another feature of China's papermaking that distinguishes itself from foreign papermaking. Breeding.
In the hardwood pulp raw materials, there are two commonly used tree species in foreign countries. Aspen is used in North America and Europe, and Eucalyptus is used in Brazil and Australia. Nanyang is a fast-growing species, of course, the first choice for papermaking. The Populus tremuloides used in North America and Europe (Populus ascendens and Populus euphratica) are poplar poplars. They are the most suitable poplar tree species for papermaking. China has no major distribution, but China has poplars to send another tree species. - Populus tomentosa, which is better than the poplar material and grows faster, is an ideal raw material for papermaking in China. However, this tree species grows slowly in the early stage, afforestation is serious and the seedlings enter the fast growth period after 5 to 6 years. After 10 years, it grows into a breast diameter of 15 to 20 cm. Secondly, this tree species is difficult to breed. Do not solve the two major problems of Populus tomentosa, especially the problem of shortening the cultivation cycle, Populus tomentosa can not be included in the paper tree species, can not serve as papermaking raw materials.
It is necessary to cultivate short-term fast-growing tree species and make trees grow in a hurry. After 5 to 6 years of time, they will walk more than 10 years and grow more than 10 years of wood (cubic meters). This 10-year volume has reached the skill of 5 years. It is the excellent ability of short-cycle breeding in tree breeding. Without this ability, the use of wild slow-growing species of papermaking, due to slow growth, long cycle, papermaking raw materials is ultimately difficult to solve.
5, poplar science and technology, the Yellow River paper industry, bright in the hope to solve the paper issue, need to start from the raw materials; and raw materials problems, need to start from breeding. Shortening the cycle time of trees and speeding up the growth rate will speed up the growth of trees through tree breeding. It is entirely feasible for us to see this. From 1983 to 1997, the author was entrusted by the State Science and Technology Commission and the Ministry of Forestry to participate in the national key scientific and technological research to solve the short-cycle new species breeding of Populus tomentosa. Over the past 15 years, I and my disciples have used the chromosome replacement and chromosome doubling techniques of Populus tomentosa cells to replace the disease-causing genes (chromosomes) that caused slow growth (seedlings) and early fall of leaves in Chinese common poplar, and then added them. Into a chromosome group (19 chromosomes), the traditional 38-chromosome diploid old Populus to 57 triploid new Populus tomentosa, to achieve the genetic composition of Populus tomentosa quality and quantity of transformation, eventually leading to The birth of a new artificial hybrid triploid Populus tomentosa that has never existed in nature.
The new breed has a series of advantages, of which the most prominent is fast growth, 5 years of rotation. Fast-growing emerged from the seedling stage. The original seedlings with an average diameter of 3 cm and a seedling height of 3 to 4 meters required 2 to 3 years, while the new varieties reached a year old, and then they passed the nursery; the old Maoyang trees were planted in the following year and afforestation was severe. The first 3 to 4 years are basically not long; while the triploid New Populus tomentosa is seedling-free, the tree height in the year of afforestation can reach 5 to 6 meters, and the diameter at breast height is 5 centimeters. The branches and leaves are luxuriant and one year into trees; by the 5th year, The new species can reach breast heights of 15 to 20 cm, tree heights of 12 to 14 meters, and individual plant volumes of 0.1 to 0.2 cubic meters. Under a row spacing of 2 meters by 3 meters, the volume per mu is 10 to 20 cubic meters, which is equivalent to the old one. Populus tomentosa 2 to 3 times the amount of growth. In addition, the new varieties have early leaves and late leaves, strong resistance to disease in leaves, and basic immunity to leaf rust, brown spot, and coal pollution, and are ideal as short-cycle papermaking raw material varieties. It is the shortest growth cycle (5 years) in the world of poplars in the world. It is also the fastest-growing and high-yield variety. In 1993 and 1997, the Ministry of Forestry carried out the identification and acceptance of new varieties. The evaluation of this product ranks first in the world. It is a rare high-tech achievement in cell chromosome engineering, allowing it to be distributed in the area of ​​Populus tomentosa-Huang and Huai. Haiyuan Plain Agricultural Region Promotion.
After the hybrid triploid Populus tomentosa was introduced, it was provided by the seedlings that had been out of the nursery for one year (the original required two years), the ecological benefit of the forested ones for three years (which originally required five to six years), and the urgently-required timber for five years of rotation (original It took more than 10 years) to change people's understanding of the long-term effectiveness of the forestry cycle. Believe in poplar technology is a good way to increase the growth rate of Populus tomentosa and to stimulate people's enthusiasm for planting Triploid Chinese White Poplar. According to statistics, 250 million new varieties have been promoted in the country, and the annual increase in revenue is more than 1 billion yuan compared to the old white poplar. This has promoted the cultivation and processing industry of triploid Chinese white poplar in Huang, Huai, and Hai regions (papermaking and board building). The rise of a combination of new industries has resulted in significant ecological, social, and economic benefits. The leaders of the State Council and the Ministry of Forestry visited the base several times and believed that the breeding of the new triploid species of Populus tomentosa “will bring a revolutionary change to China's forestry†(Yang Shuzhe, 1998). “It is the pride of the country†(Li Yucai, 1997). year). Premier Wen Jiabao (1998) and Premier Zhu Rongji (2001) made special instructions on triploid Chinese white poplar.
Under the kind concern of the State Planning Commission, the Economic and Trade Commission, the Ministry of Science and Technology, the State Forestry Administration and other leaders, the establishment and papermaking work of the triploid Populus pulpwood forest has been greatly promoted. The State Forestry Administration is currently constructing 770,000 hectares of Yellow River Promenade based on triploid white poplar along the Yellow River, which is 2,000 kilometers from Shanxi's border to Dongying, Shandong, according to the instructions of Vice Premier Wen Jiabao. Some visionary entrepreneurs are also They are aiming at the papermaking of triploid Chinese white poplar, which has made the progress of afforestation and papermaking in our country a new one. It has entered the new stage (phase 4) of Baiyang Paper, which is operated by the market and is operated by the enterprise, such as the Luzhou Sun, High Tang Quanlin, Dongying Huatai, Heze Chengwu and Shanxi Xi, Henan Wuyi, Jiaozuo, Mengzhou and other paper industries have started the construction of a technical plant for the conversion of triploid Chinese white poplar pulp and wood pulp. It is expected that the project will be completed within five years. The Pulp Forest built by the above-mentioned papermaking enterprises can reach 200,000 hectares (3 million mu), which is sufficient for the production of 2 million tons of organic pulp raw materials. The situation is very gratifying. According to estimates of economic circles, the situation in which China imports nearly 100 billion yuan of pulp each year in 10 years will be reversed. The breeding of an agricultural variety (such as Yuan Longping rice) can raise more than 100 million people; and the advent of a new forestry variety will enable China's papermaking raw material production to achieve self-reliance. The thoroughbred species, especially high-tech varieties, have traditionally been used as a lever to promote the advancement of agriculture and forestry industries, and will bring hope to the Yellow River paper industry.
6, the number of up, how quality from the triploid Populus afforestation 10 years of growth
In view of this, the State Council has repeatedly studied ways to get rid of this heavy burden, hoping that forestry, like steel and petroleum, will take a few years to fight for a turnaround and realize self-reliance. However, it is easier said than that, as wood production does not have ready-made reserves such as mining and oil production, it is only necessary to dig down to the ground. Wood is a product of photosynthesis and the carrier relies on a forest that has been growing up into decades. China lacks sufficient forests, and clothing is not covered with soil (the soil). The forest coverage rate is only 13%. In the rainy season, the rivers are flooded with rivers and rivers, and the existing forests are so small that they cannot play an ecological barrier and maintain the role of water and soil, let alone send them to papermaking fields. This is China's national conditions: the lack of forest resources, there is no papermaking raw materials, had no choice but to import, it is costly.
2. There are many paper mills, most of which are grass mills. China has a large amount of paper in serious pollution. It was 32.69 million tons in 1998 and it is the second largest paper-consuming country in the world. However, the average per capita consumption is 26.5 kilograms, which is only half of the 53 kilograms consumed by the world. Moreover, among the 32.69 million tons, the paper is not mainly paper made of wood pulp. The proportion of wood pulp is very small, less than 10%, and more than 50% of the ingredients are made from non-wood pulp raw materials such as straw and wheat straw. Such raw materials are easily processed. However, papermaking wastewater is difficult to deal with and it has to be discharged into rivers, lakes and seas, causing great harm to the ecological environment. As grass pulp plants use grass as pulp, they are easily sourced and the equipment is simple, and they can be launched without huge amounts of money. Therefore, small grass pulp mills in China are 5,360 in 1990 and more than 20,000 in 1997. It is the hero of papermaking in our country. Because 65% of paper consumption in China is supported by them, if not for them, the consumption of imported paper in China will inevitably be greater.
However, from the point of view of the polluted environment, they have no responsibility to escape. They set up factories everywhere, 95% of the factories are still below 10,000 tons, and the paper mills are heavily polluted. The green mountains are polluted by the black smoke they emit. A mess. Recently, the State Council ordered the closing of a grass pulp mill below 5,000 tons, which is certainly a wise move. However, more than half of the paper consumption depends on the grass pulp mill. How to arrange the layoff of hundreds of thousands of employees is another difficult problem. It is difficult for the world to have the best of both worlds and to overcome the dilemma of non-wood papermaking. This is probably a feature of China's national papermaking situation.
3. Lin Linlin, Lin Paper, China's forestry and paper industry has introduced some policies in order to solve the papermaking problem. In the 1950s, it emulated the mining and oil production. The geological department discovered the minerals to find out the raw materials, and then handed them to specialized departments. Go mining. Indeed, the Ministry of Oil took out oil in the 1960s; the Ministry of Metallurgy took out steel in the 1970s; in the 1990s, China's steelmaking reached 100 million tons. In the same model, the afforestation and papermaking issue was first proposed by afforestation and papermaking. That is to say, the forest was taken out by the Ministry of Forestry and taken out of wood and sent to the Ministry of Light Industry for paper making. However, due to the slow growth of trees and the long period of afforestation, the Ministry of Light Industry, which has been waiting for 10 to 20 years, still has no raw materials at the end, and papermaking has become a no-till. Later, the state changed its policies. In the 1980s, the state encouraged the forestry departments to directly afforest and make paper without having to distribute the large profits of papermaking to the Ministry of Light Industry. The Ministry of Light Industry could also directly invest in afforestation, thus mobilizing the enthusiasm and relaxing policies. Go ahead. However, this arrangement did not work. The amount of paper used in China has risen sharply. Papermaking is still dominated by straw pulp. Wood pulp depends on imports. In the 1990s, it was suggested to go to Thailand and Malaysia to solve the problem of wood pulp production and prepare to take one billion US dollars to afforestation. This is the third phase of the production of foreign paper. However, China’s land and labor force are probably the cheapest in the world. It may be even harder to do things that cannot be accomplished in China. At the end, it will be fruitless.
The story of forest afforestation, forestry and papermaking, and production of foreign forests has not been resolved after half a century. On the other hand, the records of China's imported pulp are skyrocketing and must not be reversed. It is not worth the 100 billion yuan spent on paper. The Republic is unbearably burdened with this kind of burden. Therefore, the Central Minister stated that it is necessary to treat pulp raw materials as a major issue and quickly seize their own forestry science and technology development work. This is exactly the right point and shows that the solution to the problem of China’s papermaking industry must be based on China’s own forestry. Starting from scientific research and taking the road of self-reliant breeding, this is the solution.
4. To solve the problem of Chinese papermaking raw materials, it is necessary to grasp from forestry breeding as if to solve literature, dance, and computer problems. To solve the problem of China's papermaking raw materials, it is necessary to grasp the origin of forestry tree breeding. This is another feature of China's papermaking national conditions, and it is also a place where China distinguishes itself from other countries. Because China is a Shaolin country, there are no ready-made forests. Unlike the United States and Canada, the raw materials used for their papermaking are populus tremuloides. They are rich in resources, and they have been cut into pieces. Films have been cut down by several generations, so their papermaking problem is simply to build factories. In China, it is not the case that China's papermaking industry must start with solving the species of papermaking raw materials. In order to get rid of the wild species, the improved seed species are used to produce wood with the fastest tree species in the shortest period of time. This results in paper tree species and papermaking varieties.
The tree species problem is first of all to have a fast-growing and high-yield product, followed by a material-to-road method; and the variety problem is based on the fast-growing and high-yielding material-to-road method, and the varieties with short cycle, good resistance, and high wood pulp yield are selected. China has no ready-made wood pulp varieties that meet the above requirements. This must be solved from the standpoint of forest tree breeding and select the ideal papermaking varieties. This is another feature of China's papermaking that distinguishes itself from foreign papermaking. Breeding.
In the hardwood pulp raw materials, there are two commonly used tree species in foreign countries. Aspen is used in North America and Europe, and Eucalyptus is used in Brazil and Australia. Nanyang is a fast-growing species, of course, the first choice for papermaking. The Populus tremuloides used in North America and Europe (Populus ascendens and Populus euphratica) are poplar poplars. They are the most suitable poplar tree species for papermaking. China has no major distribution, but China has poplars to send another tree species. - Populus tomentosa, which is better than the poplar material and grows faster, is an ideal raw material for papermaking in China. However, this tree species grows slowly in the early stage, afforestation is serious and the seedlings enter the fast growth period after 5 to 6 years. After 10 years, it grows into a breast diameter of 15 to 20 cm. Secondly, this tree species is difficult to breed. Do not solve the two major problems of Populus tomentosa, especially the problem of shortening the cultivation cycle, Populus tomentosa can not be included in the paper tree species, can not serve as papermaking raw materials.
It is necessary to cultivate short-term fast-growing tree species and make trees grow in a hurry. After 5 to 6 years of time, they will walk more than 10 years and grow more than 10 years of wood (cubic meters). This 10-year volume has reached the skill of 5 years. It is the excellent ability of short-cycle breeding in tree breeding. Without this ability, the use of wild slow-growing species of papermaking, due to slow growth, long cycle, papermaking raw materials is ultimately difficult to solve.
5, poplar science and technology, the Yellow River paper industry, bright in the hope to solve the paper issue, need to start from the raw materials; and raw materials problems, need to start from breeding. Shortening the cycle time of trees and speeding up the growth rate will speed up the growth of trees through tree breeding. It is entirely feasible for us to see this. From 1983 to 1997, the author was entrusted by the State Science and Technology Commission and the Ministry of Forestry to participate in the national key scientific and technological research to solve the short-cycle new species breeding of Populus tomentosa. Over the past 15 years, I and my disciples have used the chromosome replacement and chromosome doubling techniques of Populus tomentosa cells to replace the disease-causing genes (chromosomes) that caused slow growth (seedlings) and early fall of leaves in Chinese common poplar, and then added them. Into a chromosome group (19 chromosomes), the traditional 38-chromosome diploid old Populus to 57 triploid new Populus tomentosa, to achieve the genetic composition of Populus tomentosa quality and quantity of transformation, eventually leading to The birth of a new artificial hybrid triploid Populus tomentosa that has never existed in nature.
The new breed has a series of advantages, of which the most prominent is fast growth, 5 years of rotation. Fast-growing emerged from the seedling stage. The original seedlings with an average diameter of 3 cm and a seedling height of 3 to 4 meters required 2 to 3 years, while the new varieties reached a year old, and then they passed the nursery; the old Maoyang trees were planted in the following year and afforestation was severe. The first 3 to 4 years are basically not long; while the triploid New Populus tomentosa is seedling-free, the tree height in the year of afforestation can reach 5 to 6 meters, and the diameter at breast height is 5 centimeters. The branches and leaves are luxuriant and one year into trees; by the 5th year, The new species can reach breast heights of 15 to 20 cm, tree heights of 12 to 14 meters, and individual plant volumes of 0.1 to 0.2 cubic meters. Under a row spacing of 2 meters by 3 meters, the volume per mu is 10 to 20 cubic meters, which is equivalent to the old one. Populus tomentosa 2 to 3 times the amount of growth. In addition, the new varieties have early leaves and late leaves, strong resistance to disease in leaves, and basic immunity to leaf rust, brown spot, and coal pollution, and are ideal as short-cycle papermaking raw material varieties. It is the shortest growth cycle (5 years) in the world of poplars in the world. It is also the fastest-growing and high-yield variety. In 1993 and 1997, the Ministry of Forestry carried out the identification and acceptance of new varieties. The evaluation of this product ranks first in the world. It is a rare high-tech achievement in cell chromosome engineering, allowing it to be distributed in the area of ​​Populus tomentosa-Huang and Huai. Haiyuan Plain Agricultural Region Promotion.
After the hybrid triploid Populus tomentosa was introduced, it was provided by the seedlings that had been out of the nursery for one year (the original required two years), the ecological benefit of the forested ones for three years (which originally required five to six years), and the urgently-required timber for five years of rotation (original It took more than 10 years) to change people's understanding of the long-term effectiveness of the forestry cycle. Believe in poplar technology is a good way to increase the growth rate of Populus tomentosa and to stimulate people's enthusiasm for planting Triploid Chinese White Poplar. According to statistics, 250 million new varieties have been promoted in the country, and the annual increase in revenue is more than 1 billion yuan compared to the old white poplar. This has promoted the cultivation and processing industry of triploid Chinese white poplar in Huang, Huai, and Hai regions (papermaking and board building). The rise of a combination of new industries has resulted in significant ecological, social, and economic benefits. The leaders of the State Council and the Ministry of Forestry visited the base several times and believed that the breeding of the new triploid species of Populus tomentosa “will bring a revolutionary change to China's forestry†(Yang Shuzhe, 1998). “It is the pride of the country†(Li Yucai, 1997). year). Premier Wen Jiabao (1998) and Premier Zhu Rongji (2001) made special instructions on triploid Chinese white poplar.
Under the kind concern of the State Planning Commission, the Economic and Trade Commission, the Ministry of Science and Technology, the State Forestry Administration and other leaders, the establishment and papermaking work of the triploid Populus pulpwood forest has been greatly promoted. The State Forestry Administration is currently constructing 770,000 hectares of Yellow River Promenade based on triploid white poplar along the Yellow River, which is 2,000 kilometers from Shanxi's border to Dongying, Shandong, according to the instructions of Vice Premier Wen Jiabao. Some visionary entrepreneurs are also They are aiming at the papermaking of triploid Chinese white poplar, which has made the progress of afforestation and papermaking in our country a new one. It has entered the new stage (phase 4) of Baiyang Paper, which is operated by the market and is operated by the enterprise, such as the Luzhou Sun, High Tang Quanlin, Dongying Huatai, Heze Chengwu and Shanxi Xi, Henan Wuyi, Jiaozuo, Mengzhou and other paper industries have started the construction of a technical plant for the conversion of triploid Chinese white poplar pulp and wood pulp. It is expected that the project will be completed within five years. The Pulp Forest built by the above-mentioned papermaking enterprises can reach 200,000 hectares (3 million mu), which is sufficient for the production of 2 million tons of organic pulp raw materials. The situation is very gratifying. According to estimates of economic circles, the situation in which China imports nearly 100 billion yuan of pulp each year in 10 years will be reversed. The breeding of an agricultural variety (such as Yuan Longping rice) can raise more than 100 million people; and the advent of a new forestry variety will enable China's papermaking raw material production to achieve self-reliance. The thoroughbred species, especially high-tech varieties, have traditionally been used as a lever to promote the advancement of agriculture and forestry industries, and will bring hope to the Yellow River paper industry.
6, the number of up, how quality from the triploid Populus afforestation 10 years of growth
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