Trajectories of deforestation, coffee expansion and displacement of shifting cultivation in the Central Highlands of Vietnam

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...]

Vietnam Journal of Forest Science Number 1-2011

1. STUDY ON SILVIC CHARACTERISTICS OF SOME MAIN FOREST ECOSYSTEMS OF VIETNAM  Tran Van Con Forest Science Instititute of Vietnam SUMMARY Successful implementation of sustainable forest management in the operational level relies on the understanding of process which occurs in natural forest ecosystems and their response to intervention. The natural forests in Vietnam have been managed for over four decades but the knowledge of such process is still limited due to a lack of data derived from … [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...]

Vietnam Journal of Forest Science Number 1-2010

1. RESEARCH ON COMPETITION INDICIES OF EVERGREEN BROAD LEAF, NATURAL FORESTS IN KON HA NUNG    Nguyen Thanh Son, Tran Van Con Silvicultural Techniques Research DivisionForest Science Institute of Vietnam Nguyen Danh Deputy head of the NA deputies delegation of Gialai province   SUMMARY Competition indices reflect the spatial growth constellation of individual trees within a stand and the interaction between them through spatial occupancy and resource exploitation. Competition indices may … [Read more...]

Vietnam Journal of Forest Science Number 3-2009

1. RESEARCH RESULTS FROM INTENSIVE PLANTING OF EUCALYPTUS AT THE NORTH-EASTERN VIETNAM FOREST SCIENCE AND PRODUCTION CENTRE Le Minh  Cuong North Eastern Vietnam Forest Scientific and Production Center Forest Science Institute of Vietnam SUMMARY For plantation forests to attain high productivity and economic effectiveness, they require not only good varieties, but also appropriate intensive planting methods. Models of intensive planting of clones U6 and PN2 were established at the … [Read more...]

Vietnam Journal of Forest Science Number 4-2009

1. PROPAGATION OF CHUKARASIA SPECIES BY TISSUE CULTURE Doan Thi Mai, Nguyen Thi My Huong, Van Thu Huyen, Vu Thi Ngoc, Tran Thanh Huong Research Centre for Forest Tree ImprovementForest Science Institute of Viet Nam SUMMARY Chukrasia is one of the most important commercial tree species in Vietnam. It is used for various purposes. Plant tissue culture can be applied to quickly propagate selected Chukrasia species. The suitable sterilization method is 1% HgCl2 for 15 minutes. The suitable … [Read more...]

Vietnam Journal of Forest Science Number 1-2009

1. MORPHOLOGICAL AND ANATOMICAL CHARACTERISTICS OF THE LEAVES OF SOME MELALEUCA SPECIES AND THEIR HYBRIDS    Hoang Vu Tho Forestry University Pham Duc Tuan Forestry Department       SUMMARY This study investigated the morphology and anatomy of the leaves of some interspecies crossing combinations of Melaleucas which were grown for testing in 2004 on swampy, seasonally flooding ground at Gia Vien county, Ninh Binh province.             The research aims at determining the difference … [Read more...]

Viet Nam Journal of Forest Science Number 4-2008

1. RESEARCH AND DETERMINE PLANTING REGION FOR E.UROPHYLLA WITH THE PURPOSE OF SUPPLYING BIG-SIZED TIMBER IN THE NORTH Central REGION OF VIETNAM Nguyen Thanh Son, Dang Van Thuyet Forest Science Institute of Vietnam SUMMARY The objective of this research is to identify the planting region for E. urophylla in North Central Vietnam suitable for supplying large timber. Groups of factors have been considered in order to determine a planting region for E. urophylla including the climate, soil, and … [Read more...]

Viet Nam Journal of Forest Science Number 3-2008

 1. Assessment oF THE Suitability of Hopea odorata plantations in Southeast Vietnam Ngo Dinh Que Research Center for Forest Ecology and Environment Forest Science Institute of  Vietnam SUMMARY Based on the results of forest inventories, surveys and research into natural conditions and soil characteristings under both Hopea odorata natural forests and plantations in Southeast Vietnam, the research has been able to develop some initial assessments on a number of soil factors that effect the … [Read more...]