Information on Forest Science and Technology Number 3 2004

July 11, 2006 by

Summaries of papers in the bulletin; for more information contact info@fsiv.org.vn



1. Results of Brazilian Eucalypt trial planting in Tan Lac — Hoa Binh Province

(Nguyen Ba Trieu and Bui Kieu Hung)

After three years of trial planting with 6 Eucalypt clones (5 Brazilian clones and the clone PH2) at the Tan Lac Scientific and Technical Experimentation Station in Hoa Binh, reasonably good results have been obtained by the Forest Science and Techniques Application Centre. Of the 6 clones tested, 3 are suitable to climatic and edaphic conditions in the area, namely GU8, PN2 and 1407. The clone GU8 had the fastest growth. However, to accurately evaluate the growth potential of the clones in the whole production rotation, further observations and measurements must be done for 2-3 years. Results of this experiment show that the three clones GU8, PN2 and 1407 can be introduced to Hoa Binh province and other areas of similar climatic and edaphic conditions.


2. A survey to evaluate the forest nursery system and the capability of seedling supply to provide a base for the planning and management of the nursery network serving a 5 million hectare reforestation project

(Pham Dinh Tam, Lai Thanh Hai, Pham Dinh Sam and Dang Quang Hung)


To meet the requirement for seedling production to serve the 5 million hectare reforestation project, The Ministry of Agriculture and Rural Development approved a survey to evaluate the existing forest nursery system and the capability of seedling supply as a base for the planning and management of the nursery network to service the 5 million hectare reforestation project. The survey, which was carried out by the Forest Science and Techniques Application Centre in 2000—2001, showed that the requirement for seedlings for forest planting to the year 2010 is about 795,841,000 seedlings (524,507,600 seedlings for the project and 271,333,330 seedlings for raw material forest planting). The various units engaged in seedling production are either state-owned, privately owned or collectives but the state owned units are the main establishments which supply seedlings for forest planting. Of the total nurseries surveyed, 7.1% are large nurseries (capacity greater than one million seedlings/year); 10.9% are medium-sized nurseries (capacity 500,000—1,000,000 seedlings/year) and the remaining 82% are small nurseries (capacity less than 50,000 seedlings/year); 3.7% of nurseries use technology while the other 96.3% use hand labour. The results of the survey also reveal that the level of investment in forest nurseries is inadequate. The problems are low investment, limited application of technology, quality of the seedlings is not yet improved and income of the workers in the nurseries is too low. Finally, the project puts forward a nurseries network planning for provinces in the forest economic zones in the whole country as a base for future investment in the industry.


3. Preliminary research results on Canarium nigrum propagation by grafting


(Tran Duc Manh)



Canarium nigrum is an indigenous species 20-30m in height, its breast-high diameter can reach 50-70cm, its bole is straight and round and the crown large and green all the year round. C. nigrum is a much-desired, multi-purpose tree species. Its wood can be used for house construction, furniture and as raw material for plywood. The research focuses on selection for germplasm and on propagation techniques by grafting to obtain new generations of high and stable productivity. Fifteen plus trees of three provenances: Hoa Binh, Ninh Binh and Ha Tay were obtained and two grafting methods: top wedge grafting and stem lateral grafting gave survival rates of 25.8% and 30.8% respectively.


4. Forest planting in semi-water submersion areas adjacent to water reservoirs in North Vietnam

(Au Van Bay)

Northern Vietnam has many large freshwater reservoirs, such as Hoa Binh hydro-electric lake (21,000 ha), Ke Go lake (Ha Tinh; 2,806 ha), Cam Son Lake (Bac Giang; 2,600 ha), Nui Coc lake (Thai Nguyen; 1,000 ha), Thac Ba lake (Yen Bai; 23,400 ha).

Vietnam has a rainy season (April to October) and a dry season (November to March) and water in the lake fluctuates with the season, resulting in seasonal water submersion in some areas adjacent to the lake. This land is known as semi-water submersion land.

Research on forest planting in these areas is just beginning. The Forest Science and Techniques Application Centre is carrying out the research subject ‘Establishment of Forest planting models in semi-water submersion areas adjacent to water reservoirs in North Vietnam, 2002 — 2006’.

Initial results of establishing forest planting models in semi-water submersion areas adjacent to Ke Go, Thac Ba, Cam Son lakes affirm the success of forest planting in semi-water submersion areas.


5. Examination and supplementation of economic and technical set standards in forest planting

(Lai Thanh Hai, Pham Dinh Sam and Nguyen Tien Linh)

Many documents on set standards exist in the forestry branch — the basic ones are the 532/VKT set standards, 1988 and the 426/KLND set standards 1990. These are temporary set standards, which were promulgated some time ago and many of them are now out of date. In 2002, The Ministry of Agriculture and Rural Development carried out a project: “Survey, evaluation and supplementation of economic and technical standards in forest planting, forest regrowth maintenance, forest regeneration promotion and forest protection” in 46 provinces which had large forest plantation areas and forest planting projects with foreign investment capital. Using statistical and time study methods, unnecessary standards have been removed and supplementary standards have been added.

The new document on set standards consists of 7 parts arranged in order of forest production with tables of set standards and different annexes.


6. Results from the implementation of the research subject “Establishment of the Canarium album forest planting model”

(Pham Dinh Tam, Tran Duc Manh and Hoang Nguyen Viet Hoa)

C. album is a large indigenous tree species of high economic value. Wood of C.album is used for common furniture making, house construction and as plywood raw material. C.album resin is used in soap, scent and synthetic paint industries and for electrical insulation and shoe polish. C.album fruit is used as a foodsfuff, as sugared dry Canarium nuts and also as an anti-poison preparation. The research makes use of previous results on C. album forest planting technique from FSIV (1995-1999) to establish forest planting models for timber and fruit. The research is managed by the Forest Science and Techniques Application Centre and was implemented from 1999 to 2004 in Hoa Binh and Vinh Phuc.

The research project succeeded in developing a grafting method for C. album (survival of the grafts is 70%); 50 mother trees of high yield of 3 different provenances have been selected to supply branches for grafting; the models have been established on 15 ha (6 ha for fruit, 9 ha for timber) The models are now performing well with a survival rate of over 90%. Plantations in 1999 attain a mean height of 4.9 m and diameter at tree base of 8.7 cm.

Latest news

Oldest news

Filed Under: 2000 - 2009
[logo-slider]