Pham Van Dau I. Introduction The natural forests play a very important role in the living conditions of local people. Besides their functions as natural suppliers of wood, timber, wildlife and many other precious forest products, they are also active in their role of crop protection, soil conservation, water supply regulation, and climatic and environmental stabilization. The Forest Development Department has clearly pointed out that there are some 8.252 million hectares of natural … [Read more...]
Survey and selection of good forest stands for conversion in to seed stands in South Vietnam provinces and the Central Highland
June 30, 2005 by
Ha Chu Chu, Pham Dinh Tam, Pham Van Tuan I. Introduction According to the project of planting 5 million hectares of forest from now to the year 2010 of the Government, South Vietnam provinces must plant about 377,800 hectares of forest and the Central Highlands must plant about 495,000ha of forest... Annually, the provinces must plant mean 40,000 ha of forest and tens million scattered trees with native tree species such as Hopea sp., Dipterocarpus sp., Amisoptera cochinchinensis, … [Read more...]
Research on technique for creating agar-wood in the stem of Agar-wood crassna Pierre
June 30, 2005 by
Nguyen Hong Lam Centre for Special Forest Products Research I. Introduction Agar-wood crassnaPierre has the Vietnamese names: Tram Huong, Tra Huong, or Do bau. A. crassna is a large timber, evergreen species with thin crown and straight bole, average height of 15 - 18m, diameter breast high 35 - 40cm in average. A. crassna is usually distributed in primary or secondary forest in Vietnam Laos, Cambodia and Southern China. In our country A. crassna is rather widely distributed from North … [Read more...]
Results of introduction of Phyllostachys pubescens from Cao Bang prov. in Hoa Binh Prov.
June 30, 2005 by
Dinh Van Tu Centre for Forest Products Research I. Introduction Phyllostachys pubescens Magel ex de Lehaie has the local names May khoan - Rao pen. This is a species of many economic values. It was brought from China and introduced in our country from long ago. Today, this species is much planted and well adapted to many mountainous areas in Cao Bang, Bac Kan, Thai Nguyen provinces. In recent years, the demand for bamboos as raw material for manufacturing of commodities for home … [Read more...]
Research on establishment of Eucalytus microcorys forest plantation model in the Central Highland
June 30, 2005 by
Hua Vinh Tung, Pham Trong Nhan Lam Dong Silvicultural Experimentation Research Centre I. Introduction Eucalypt species are among main forest tree species in many countries in the world. Up to 1990s, the area planted with eucalypt species outside their distribution range in 90 countries amounted to over 4 million hectares. Eucalypt wood is used as timber, paper and composite board raw material. Eucalypts are also planted as landscape and environment amenities. Through over a decade, … [Read more...]
Compilation of lists of tree and plant species in a number of main historical and regious relics areas in North Vietnam and recommendation on their upgradation
June 30, 2005 by
Tran Ngoc Dang, Au Van Bay, Pham Thi Hai, Trinh Xuan Tu I. Introduction The State of Vietnam has great respect for the national cultural relics. Right in the early days of the foundation of the Demonatic Republic of Vietnam, President Ho did sign the decree 65 dated 18/11/1945 “Prohibition of destruction of Communal houses churches and temples”. The 1992 Constitution has the Article 34: “The State and the society conserve, develop national, cultural relics; pay … [Read more...]
Biomass of Rhizophora apiculata forest
June 30, 2005 by
Dang Trung Tan Minh Hai Centre for Mangrove Forest Technique Application I. Introduction Of the studies on mangrove forest, study on biomass is an important link due to its scientific and practical significance. According to Prof. B.F. Clough and K. Scott of Marine Science Institute. Australia, then, “estimates in biomass and development rates constitute a basis for the estimation of total pure primary productivity in the ecological studies and the evaluation of benifits from … [Read more...]
Results of Melaleuca cajuputi and M. leucadendra provenances trial with different planting density levels and types of seedlings in the Mekong River Delta
June 30, 2005 by
Ho Van Phuc, Nguyen Tran Nguyen, Nguyen Thi Tron Sub- Institute of Forest Science of Southern Vietnam Melaleuca cajuputi is a tree species popularly planted in severe acid sulphate soil in the Mekong River Delta. Intensive management of M. cajuputi forest is a measure much interested by many forest owners now to improve the efficiency of using acid sulphate soil. Factors of intensive management of forest consist of seed selection, land preparation, forest tending... Which factors are … [Read more...]
IMPROVEMENT of Tectona grandis for Eastern South Vietnam and the Central Highland
June 30, 2005 by
Tran Van Sam FSIV Due to various causes, the natural forest area in our country is diminishing day by day, thus reforestation work is of significant and urgent importance. Besides the traditional native tree species planted by our people such as bamboos, pines, dipterocarps, etc..., some species of origin from other countries have also been introduced into our country and Tectona grandis is one of them. Teak is a large timber species with rather fast growth rather wide ecological … [Read more...]
Technology and practice development research for the cultivation of Paulownia fortunei
June 30, 2005 by
Silvicultural Research Division FSIV I. Introduction Intensive research and investigations have been carried out the world over to find out fast growing tree species for raw material supply to industries, in particular species that can produce light - colour timber of high quality for the wood - based panel and utility furniture industries. Among many other species, Paulownia spp. have attracted the attention of more than one investor and scientist. Their timber is well - known for its … [Read more...]
