Forest Science Institute of Vietnam I. The Importance of Forest Tree Gene Resources Forest tree varieties and their gene resources management and conservation play a very important role for the implementation of all national plantation programmes either in full commercial plantations or as dispersed trees for timber production, environmental protection and/or special use of the forests and their resource. Following the tasks and work plan as shaped out by the ''Five-Million-Hectare … [Read more...]

  Dr. Pham Van Mach (1) Prof. Pham Van Ty (2) Bsc. Nguyen Thi Thu (2)       I. INTRODUCTION     Pinus merkusiiis rather widely planted in some provinces in the North and Centre of our country and is one of the main forest plantation species. However one of the difficulties encountered in the course of planting Pinus merkusii is its frequent susceptibility to damping - off disease in the nursery stage. The proportion of infected … [Read more...]

Dr. Ngo Que INTRODUCTION For nearly 30 years we have carried out the planting of P. merkusii on a large scale, on tens of thousands of hectares, but the ratio of established plantations remains small. Plantation quality is uneven and unstable. The choice and use of land for P. merkusii forest planting and management have remained a great problem with a regard to concrete policy and the approach of the forestry branch in the past years. Problems arise namely: what is the cause of many … [Read more...]

Nguyen Ngoc Binh   INTRODUCTION   Scientific analysis and evaluation of existing experience in agroforestry production in the country, and identification of a number of important agroforestry models that are widely applicable in each production area.   Identification of the remaining technical problems, orientation of the research work aimed at perfecting the trials in production and working out new agroforestry models suitable for each region.   1. … [Read more...]

Le Quang Lien   I. INTRODUCTION Dendrocalamus membranaceusis a species of the Bambusaceae family, which grows in clumps with a high growth rate. During one night, bamboo shoots can reach up to 0.6 - 0.7m and after 45 days, bamboo trees can attain a height of 18-20m with a breast height diameter of 10-12 cm and a fresh weight of 35-40kgs. After two years, they can be harvested for the paper industry, to supply electric poles, gutters, house pillars and other products. This native … [Read more...]

Nguyen Hoang Nghia INTRODUCTION Vietnam is a tropical country located in South - East Asia with a total area of about 330,000 km2 ranging from latitude 9o N to latitude 23o N, of which 20 million ha are forest and forest land (about 60% of the country's area). The country has very abundant and diverse flora containing about 12,000 plant species of which over 7.000 species belonging to 1,850 genera and 267 families have been identified. This flora contains many types of forest … [Read more...]

Hoang Xuan Ty 1. The role of casuarina on coastal sandy soil Vietnam has a 3,200 km long coastline, with a total of about 600,000 ha coastal sandy soil. One part of that sandy soil has been used for agriculture. The remainder of about 462,000 ha is not favourable for industrial plants (Phan Lieu, 1987). On these kinds of sandy soil, Casuarina equisetifolia is the most superior wooden species and is widely planted with the following objectives: · Sand stabilization forest, forest … [Read more...]