Nguyen Anh Tiep
INTRODUCTION
In Huulung area (Langson province), there are two soil types which occupy a considerable area, they are:
* Bare hill land which was rehabilitated with Rhodomyrtus tomentosa, Melastoma dodecandrum, Cratoxylum cochinchinensis and Liquidambar formosana. Soil is poor with stone pieces.
* Degraded forest land due to frequent burning for agriculture cultivation. Surface layer is thin; poor and dry; vegetation contains drought-tolerant, short shrubs and Eupatorium odoratum which covers sparsely.
These two soil types were not used for tree planting in Huulung nor were they used for any other purpose in forest production.
The problem is that research must be carried out to find how to use these two soil types in forest management. The solution must be based on the success of natural forest rehabilitation in order to choose suitable species and to use some silvicultural techniques to establish the forest.
METHODS AND CONTENT
Liquidambar formosana is a light-prefering, drought-tolerant species which can also tolerate poor soil and can form natural stands where Erythrophloeum fordii and other tree species can also be found.
It aims to use Liquidambar formosana as a pioneering tree species and after some years, Erythrophloeum fordii can be planted in mixture in order to form a forest type containing two main species.
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
- some initial basis in the normative making of timber exploitation
- preliminary determination of forest tree species for forest economical regions ( 1983 - 1985)
- Research on casuarina equisetifolia
- research on the mode of forest planting for mine prop supply
- biological characteristics of lac insects ( 1975 - 1977)
