Cao Tho Ung
Hoang Minh Giam
Tran Ngoc Anh
INTRODUCTION
The coal mining branch is increasing more quickly than the supply of mine props. But until now the mine prop supply has been taken from the natural forest, which rapidly diminishing. During 5 years from 1981 – 1985 the natural forest area of Quangninh province has decreased by 6 percent. The total reserve of wood decreased 45 percent. Speed of reforestation is very slow and the low rate of growth of forested area has not compensated for that lost by mine prop exploitation. Besides which without special areas for mine prop supply and with inadaquate investment for reforestation problems of mine prop supply have arisen.
The object for forestry is to have in the shortest period of time many large planted forests with a high capacity of mine props for the coaly mining branch.
Based on the economic target, the research problems are as follows: to find species for reforestation, the technical procedures and the mode of planting for developing an area of materials with high capacity and productivity depending on the natural conditions of the area and conforming with the permitted conditions of the economy.
Latest news
- Project: Study on integrated management of insect pests and diseases on Docynia indica in northern Vietnam
- Project: Study on integrated pest management of major leaf insect pests and stem borer beetles in Acacia hybrid, A. mangium and A. auriculiformis in Vietnam
- Project: Research and develop an integrated management program for control of cinnamon pests in some main cinnamon growing areas (Northern mountainous region and Quang Nam province)
- Project: Pilot plantation and completion of planting techniques of technologically advanced germplasm of Acacia auriculiformis (AA42, AA53, AA56, AA92, AA95) for sawlog in the southeast and south central.
- Project "Research on selection of varieties and intensive afforestation techniques of Prunus arborea (Blume) Kalkman for providing lager timber in the Northeast and Northwest regions, Vietnam"
Oldest news
- biological characteristics of lac insects ( 1975 - 1977)
- study on finding measures for prevention and control of white butterfly eublemma amabilis moore which causes damage for lac insects ( 1971 - 1973)
- techniques of raising lac insects at quanhoa lac insect research station (thanhhoa province)
- research results on forest reclamation by chukrasia tabularis ( 1981 - 1985)
- Results of species and provenance trials of eucalyptus, period 1990 - 1992
