Nguyen Thi Bich Ngoc, Truong Quang Chinh Nguyen Duy Vuong, Nguyen Thi Hang, Le Bach Dang Forest Science Institute of Vietnam On the basis of Vietnam’s available floral material sources and using prevention experiences for harmful creatures, the Forest Science Institute of Vietnam has conducted research on the evaluation of the preventive effect of wood damaging insects of some active compounds extracted from Melia azedarach L, Milletia ichthyochtona Drake, … [Read more...]
Experimental results on the preventive effect of wood damaging insects of some extracts from plant materials
December 30, 2010 by
Initial results of research on neohouzeana dulloa culms preservation as a raw material in fine handicraft commodities production
December 30, 2010 by
Nguyen Van Duc, Le Bach Dang, Dinh Van Tien, Nguyen Thi Hang Forest Science Institute of Vietnam Neohouzeana dulloa constitutes one of the valuable forest product resources. N. dulloa Culms are used in many fields such as building, handicrafts and fine-handicraft production serving consumption domestically as for export. This bamboo is however easily damaged by biological agents diminishing its quality as a raw material. In production at present this bamboo must be … [Read more...]
Preservation technique for some types of Acacia and Eucalyptus timbers used in construction and as poles
December 30, 2010 by
Bui Van Ai, Truong Quang Chinh, Dinh Van Tien Forest Science Institute of Vietnam In Vietnam, there is an increasing demand of using timber as materials for house building and poles for cultivation, and for electricity and telephone poles. Some types of forest grown timbers, such as eucalyptus and acacia, have a mechanical nature meeting the demands of use in basic construction; however, their timbers are easily harmed by insects and fungi. In order to use forest grown timbers … [Read more...]
Research result on using cashew nut oil to produce forest products preservative
December 30, 2010 by
Bui Van Ai, Nguyen Thi Bich Ngoc Forest Science Institute of VietnamCashew nut oil contains phenols with unsaturated hydrocarbon chains. There are approximately 10 -15% of oil in cashew nuts. Preliminary research results show that cashew nut oil is a preventive against forest product harming-insects. This article presents research results to improve the preventative effect of cashew nut oil with chlorine gas and using activated cashew nut oil to produce forest product preservatives in order … [Read more...]
Applying tablet-Shaped mixed biofertilizer (MF1) to pine and eucalýpt in the nusery
December 16, 2010 by
Pham Quang Thu, Tran Thanh Trang, Nguyen Hoai Thu,Nguyen Manh Ha, Dang Nhu Quynh Forest Science Institute of Vietnam With the aim of producing high-quality seedlings of eucalypt and pine species biofertilizer, including soil live-in microorganisms, has been produced and applied to seedlings in the nursery. In forest production phosphate fertilizer is usually applied to soil in order to improve the productivity of trees. However, after a while the soluble phosphate … [Read more...]
Anthracnose disease of Manglietia conifera Dandy seedlings in nursery
December 16, 2010 by
Pham Quang Thu Forest Science Institute of Vietnam Manglietia connifera Dandy young seedlings in the nursery are often infected with anthracnose disease, with a very high disease incidence in low-light and too high soil moisture condition. The pathogen is determined by the fungus Colletotrichum gloeosporioides (Penz.) Sacc (anamorphic stage). Sexual stages (telemorph) of the fungus are Glomerella cingulata (Stoneman) Spald. & H. Schrenk being found on diseased leaves. … [Read more...]
Research on forest structure of Schima superba Gardn. Et Champ in central highlands
December 16, 2010 by
Vo Dai Hai, Nguyen Hoang Tiep Forest Science Institute of Vietnam Schima superba Gardn. Et Champ is one of the large-sized, native, multi-purpose trees, often encountered in evergreen-broad-leaved forests that have undergone exploitation in provinces of the Central Highlands of Vietnam. This tree has been over used while our knowledge about it is rather little thus lacking in scientific bases for sustainable … [Read more...]
Criteria for very poor natural forests to be converted into economic sufficient forests
December 16, 2010 by
Tran Van Con Forest Science Institute of Vietnam Much tropical primary forest cover decline is accompanied by an increase in the area of secondary forests (heavily degraded forest) in Vietnam. Based on the method of establishment of secondary degraded forest, four major categories were identified in Viet Nam: (1) post-extraction secondary forests, (2) swidden fallow secondary forests; (3) post-fire secondary forests; and (4) rehabilitated secondary forest after failed … [Read more...]
Research results of evergreen broad leaved and semi-Decidouous forests in Vietnam
December 16, 2010 by
Tran Van Con Forest Science Institute of Vietnam Natural tropical forests are characterized by an immense diversity of plant and animal species, a complex structure and architecture of the vegetation and a mosaic of vegetation development phases. They are never homogeneous, neither in structure nor in architecture, even where there has been no filling or other artificial impacts. Gaps, varying in size and frequency, and here and there “climber tangles” or thickets of … [Read more...]
Research on carbon sequestration of pure Pinus massoniana forest
December 16, 2010 by
Vo Dai Hai, Dang Thinh Trieu Forest Science Institute of Vietnam Research on carbon sequestration of the forest is one of the important research activities serving as a basis for the identification of forest value and establishment of a mechanism for environmental services. This issue was and is being paid attention by the Government of Vietnam and the world in the recent years. The research is implemented under framework of a research subject entitled: "Research on carbon … [Read more...]
