The Forests of Economic Value Institute under the Academy of Forest Science is one of the leading scientific research units contributing greatly to the forest restoration campaign now underway across the DPRK.
Established in the 1960s, it has more than 10 labs including those of oil-bearing trees and medicinal plants, a large greenhouse and several-hectare tree sapling fields. And it has over ten scientific research forests in different parts of the country.
The institute has mainly been engaged in the development of wild-fruit tree varieties with good taste and high quality and productivity that are suitable for the climatic and soil conditions of the country, the preservation of their characteristics and the spread of them.
In the course of this, its researchers succeeded in growing saplings of high-yielding trees and perfecting the methods of producing saplings of major tree species of economic value including grafting like seed sprout grafting and cleft grafting for pine-nut trees and the planting of cuttings of seabuckthorn trees, thus creating a large area of forests of chestnut, pine-nut, Korean evodia and seabuckthorn trees in different parts of the country.
“We have bred 15 national forest plant varieties such as high-yielding chestnut, seabuckthorn, walnut and white pine-nut trees in the period of the fifth five-year plan for scientific and technological development that started in 2016. Several of them were awarded certificates of registration of sci-tech achievements and introduction of state sci-tech hits,” said director Ri Hyon Song.
He added that a technology of tissue culture for saplings was completed in the period.
Since the country has been bustling with afforestation, the demand for tree saplings of high economic value is on a steady rise.
Such ordinary vegetative propagation methods as grafting and cutting planting are insufficient to meet the needs.
Therefore, the institute laid foundations for annually producing one million saplings through tissue culture this year.
At present the tissue culture lab is conducting inoculation for multiplication of such trees as Actinidia arguta, Zizythus jujuba, Crataegus pinnatifida, Corylus heterophylla and Cerasus humiis (Bge) Sok.
Progress in study of native trees
Chestnut and pine-nut trees are indigenous species of Korea.
Chestnut is very familiar with the Koreans as it always reminds them of the mouthwatering roast fruit and makes them hum the tune of Roast Chestnut Ballad.
The scientists developed a method of boosting the production of high-yielding chestnut trees to open up a prospect of covering all the chestnut forests of the country with them in the near future.
“Two to three years were required for producing high-yielding chestnut saplings in the past. But the development of the method of doing a graft directly to seed sprouts has made it possible to reduce the sapling production cycle to a year and increase the land utilization rate and sapling output 2.5 and 4 times respectively,” said deputy director Kil Myong Chol.
The method has been introduced into forests in such areas as Unjon County of North Phyongan Province to replace native chestnut trees with the high-yielding variety, and it saves much labour and will bring benefits in the near future, Kil added.
“In general, a pine-nut tree bears fruits 15 years after it is planted. That’s why people say the tree is planted for the coming generations, I think. But this new variety begins to produce fruit five years after,” said researcher Ri Myong Chol.
The institute established a technology of producing pine-nut saplings based on a new grafting method to ensure they bear fruits five years after planting and increase output two to three times.
A bonsai lab was set up in the institute this year.
“Tray planting is an art. You can succeed in this study only when you love trees and develop the ability to interact with them,” said the lab chief Kim In Sop.
According to him, the Koreans have a long history of tray planting.
He added that pot trees and shrubs and tray landscapes on different themes that are cultivated and created by applying plastic arts have been presented to national flower exhibitions in recent years.
The lab is now busy with securing the seeds of trees and shrubs fit for tray planting including the pine tree naturally growing in alpine regions. It is also engaged in developing a grafting method for giving shapes to trees, a method of making flowers open and bear fruits at desired time by controlling growing points and growth, a method of determining the size, shape and colour suitable for pots.
The researchers are striving to present new products in the period of the sixth five-year plan for sci-tech development.
Over 100 hectares of seabuckthorn forests were planted in the Unhung area of Ryanggang Province.
The trees laden with yellow, yellowish brown and other colour fruits add beauty to the scenery of the area and serve as an asset for its economic development.
The forests are also associated with the painstaking efforts of the scientists of the institute.
As all parts of the tree, from the leaf to root, are rich in various medicinal and nutritional components, seabuckthorn is called the king of wild fruits.
The researchers completed a method of mass-producing the saplings of the tree of good breed which grows well even in the alpine regions with a considerable variation in temperature between day and night. They also expounded its biological features and fruit productivity according to soil composition in northern areas, and several varieties of it have been inscribed on the list of national forest plants.
“Active support of overseas compatriots was a great help to our success,” said Kim Un Ho, PhD.
Overseas compatriots donated saplings of high-yielding seabuckthorn variety and essential materials for its study, he noted.
The institute is working to achieve the target of planting some 1 000-hectare forests of seabuckthorn trees in northern highlands including Ryanggang Province during the second stage of the forest restoration campaign.
In addition, it established a technology of breeding and cultivating aronia, walnut, Korean evodia and other trees of good breed and an agroforestry technology for major tree species of economic value.
It also developed a technology of double and triple cultivation of tree saplings in containers to increase sapling production over five to seven times more than previously and root protective agents, growth stimulants and nutrient solutions for trees as well.
The pyroligneous acid it developed with forest by-products is regarded as a promising soil disinfectant and vegetable nutrient.
The institute is making preparations for setting up raw materials bases for bioindustry from next year in order to build more forests of economic value as early as possible.
More From Pyongyang Times
Kim Jong Un, general secretary of the Workers’ Party of Korea and president of the State Affairs of the Democratic People’s
April 26, 2024
Kim Jong Un, general secretary of the Workers’ Party of Korea and president of the State Affairs of the Democratic People’s
Kang Jin Song, an international affairs analyst of the Democratic People's Republic of Korea, on April 25 issued the following
April 26, 2024
Kang Jin Song, an international affairs analyst of the Democratic People's Republic of Korea, on April 25 issued the following
April 26 is World Intellectual Property Day.The World Intellectual Property Organization (WIPO) was established with the aim of en
April 26, 2024
April 26 is World Intellectual Property Day.The World Intellectual Property Organization (WIPO) was established with the aim of en
Kim Jong Un, general secretary of the Workers’ Party of Korea and president of the State Affairs of the Democratic People’s
April 26, 2024
Kim Jong Un, general secretary of the Workers’ Party of Korea and president of the State Affairs of the Democratic People’s
Senior Party and government officials visited the Korean Revolution Museum on April 24 on the occasion of the 92nd founding
April 26, 2024
Senior Party and government officials visited the Korean Revolution Museum on April 24 on the occasion of the 92nd founding
Streets of Pyongyang have been decorated with flowers this spring giving out fragrance. Among them are marigold, Viola tricolor,
April 26, 2024
Streets of Pyongyang have been decorated with flowers this spring giving out fragrance. Among them are marigold, Viola tricolor,
Making selfless and devoted efforts for the good of the people is the essence and foundation of the politics of the Workers’ Party
April 26, 2024
Making selfless and devoted efforts for the good of the people is the essence and foundation of the politics of the Workers’ Party
Officials and members of the Union of Agricultural Workers of Korea (UAWK) held a pledge-making meeting at the Kuksabong
April 26, 2024
Officials and members of the Union of Agricultural Workers of Korea (UAWK) held a pledge-making meeting at the Kuksabong
Workers and members of the General Federation of Trade Unions of Korea held an oath-taking meeting at the Central Hall of Workers
April 26, 2024
Workers and members of the General Federation of Trade Unions of Korea held an oath-taking meeting at the Central Hall of Workers
Premier Kim Tok Hun, who is also member of the Presidium of the Political Bureau of the Central Committee of the Workers' Party of
April 26, 2024
Premier Kim Tok Hun, who is also member of the Presidium of the Political Bureau of the Central Committee of the Workers' Party of
A delegation of the DPRK Ministry of External Economic Relations led by Minister Yun Jong Ho left Pyongyang by air on April 23 to
April 25, 2024
A delegation of the DPRK Ministry of External Economic Relations led by Minister Yun Jong Ho left Pyongyang by air on April 23 to
Maria Zakharova, a spokeswoman for the Russian Foreign Ministry, warned against the US military aid to Ukraine, Israel and Taiwan
April 25, 2024
Maria Zakharova, a spokeswoman for the Russian Foreign Ministry, warned against the US military aid to Ukraine, Israel and Taiwan
The DPRK health delegation led by Jong Mu Rim, minister of Public Health, returned home by air on April 23 after visiting Russia.
April 25, 2024
The DPRK health delegation led by Jong Mu Rim, minister of Public Health, returned home by air on April 23 after visiting Russia.
The anti-Japanese armed struggle was a revolutionary war to defeat Japanese imperialism and achieve the cause of Korea’s
April 25, 2024
The anti-Japanese armed struggle was a revolutionary war to defeat Japanese imperialism and achieve the cause of Korea’s
The first revolutionary armed forces in Korean history were founded on April 25 1932. In order to defend the dignity of the nation
April 25, 2024
The first revolutionary armed forces in Korean history were founded on April 25 1932. In order to defend the dignity of the nation
Palestinian President Mahmud Abbas, in an interview with the Warpa News Agency on April 20, condemned the US for its unreasonable
April 25, 2024
Palestinian President Mahmud Abbas, in an interview with the Warpa News Agency on April 20, condemned the US for its unreasonable
The idea of “The people are God” and devoted service for the good of the people are the foundation of all lines and policies of th
April 25, 2024
The idea of “The people are God” and devoted service for the good of the people are the foundation of all lines and policies of th
The participants in the second workshop of officials in the field of information work of the Workers' Party of Korea conducted
April 25, 2024
The participants in the second workshop of officials in the field of information work of the Workers' Party of Korea conducted
The Spring National Footwear Exhibition-2024 opened in Pyongyang under the sponsorship of the Ministry of Light Industry.
April 25, 2024
The Spring National Footwear Exhibition-2024 opened in Pyongyang under the sponsorship of the Ministry of Light Industry.
Sea Kumgang Gate is situated about 20 kilometres away from the county town of Kosong in Kangwon Province.The area abounds with fis
April 24, 2024
Sea Kumgang Gate is situated about 20 kilometres away from the county town of Kosong in Kangwon Province.The area abounds with fis
More Articles