ABSTRACT Production of commodities for global markets is an increasingly important factor of tropical deforestation, taking over smallholders subsistence farming. Measures to reduce deforestation and convert shifting cultivation systems towards permanent crops have recently been strengthened in several countries. But these changes have variable environmental and social impacts, including on ethnic minorities. In Vietnam, although a forest transition – i.e. shift from shrinking to expanding … [Read more...]
Trajectories of deforestation, coffee expansion and displacement of shifting cultivation in the Central Highlands of Vietnam
Progress in the genetic improvement for some main commercial planting tree species in Vietnam
Research Centre for Forest Tree Improvement, FSIV SUMMARY FSIV has a long running program of genetic improvement for some of the principle plantation species to select the best genetic material for high productivity and wood quality for the various wood and non-wood forest products. FSIV has also been developing mass-propagation techniques to assist in the technological transfer of the genetically improved planting material to commercial plantations while maintaining diversified breeding … [Read more...]
Research on the scientific basis for grouping wood species in Vietnam
Do Van Ban Forest Plant Resources Research Division (FPRRD) Forest Science Institute of Vietnam (FSIV) The temporary grouping table for wood species in Vietnam was enforced in 1977 by the Ministry of Forestry as summarizing the grouping table of wood species in Southern Vietnam. For Northern Vietnam, Decree 10-CP of the Vietnamese regime issued in 1964 applies. The temporary wood species grouping table 1977 listed a total of 362 wood species. Since enforcing the temporary grouping … [Read more...]
Research on the scientific basis for grouping wood species in Vietnam
Do Van Ban Forest Plant Resources Research Division (FPRRD) Forest Science Institute of Vietnam (FSIV) The temporary grouping table for wood species in Vietnam was enforced in 1977 by the Ministry of Forestry as summarizing the grouping table of wood species in Southern Vietnam. For Northern Vietnam, Decree 10-CP of the Vietnamese regime issued in 1964 applies. The temporary wood species grouping table 1977 listed a total of 362 wood species. Since enforcing the temporary grouping … [Read more...]
Determination some physical and mechanical properties and usability of edrela odorata wood
Do Van Ban Forest Plant Resources Research Division (FPRRD) Forest Science Institute of Vietnam (FSIV) The tree species Cedrela odorata L. belongs to the family Meliaceae, and is distributed widely in Latin America. In 1986 and 1989 Nguyen Huu Loc, Pham Quang Minh and Do Xuan Quy brought some seeds from Mexico and seeded them in places such as Huu Lung (Lang Son Province) and Xuan Mai (Hanoi City). Ten years after seeding, some seedlings have become big trees with … [Read more...]
Wood properties of some commercial tree species for the central North region of Vietnam
Le Thu Hien, Do Van ban, Le Qui Thang Forest Plant Resources Research Division There are 13 species in the list of popular commercial tree species for planting in the Central North of Vietnam, of which wood properties of 8 species have been researched. The methodology complied with the national stardards of Vietnam, from TCVN 358-70 to TCVN 370-70. Styrax tonkinensis (Pierre) Craib ex Hardw: Wood density was … [Read more...]
Initial determining mechanism of resistancein Pinus merkusii Jungh. and Vriese to Dendrolimus punctatus Walker
Dao Ngoc Quang, Le Van Binh Forest Science Institute of Vietnam Dendrolimus punctatus Walker is the most damaging pest to Pinus merkusii Jungh. &Vriese in terms of both level of attack per individual tree and percentage of trees attacked in a location. It causes not only serious losses in yield as well as wood and resin quality, but also effects the ecological environment. However, about three hectares of 30 year old P. merkusii plantation in Son Loc commune, Can Loc district, Ha Tinh … [Read more...]
Applying tablet-shaped mixed biofertilizer (MF1) to pine and Eucalypts in the nusery
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 fertilizer tends to … [Read more...]
Applying tablet-Shaped mixed biofertilizer (MF1) to pine and eucalýpt in the nusery
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
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...]