Cho phép nhập theo phiên âm Acacia tree species that grows fast, capable of improving land. The tree has thick foliage good defense capability. Wood is hard core, dark, fine grained, used as timber, timbering, flooring, plywood, pulp, firewood and charcoal. characteristics Tall trees, up to 30 environment. Strong capacity for regeneration. Acacia leaves large, there are four main tendons, leaves Acacia auriculiformis long, slightly curved, narrow and has two main tendons. Acacia hybrid between the two types of intermediate leaves Acacia auriculiformis and Acacia midrib with 3-4. The roots have nitrogen-fixing nodules, the possibility of reclamation of large glue | CARD Project VIE 032 05 Sustainable and profitable development of acacia plantations for sawlog production in Vietnam Extension Course Hue Province 10-12 March 2008 Programme Objective To provide practical training to extension staff and interested tree farmers on how to grow acacia plantations with higher wood value and a higher proportion of the crop saleable as sawlogs rather than pulpwood 1 Day 1. Monday 3rd March. Hue and around Hue MORNING Course participants meet at Hue Provincial Forestry Office for official welcome to Course and brief introduction Travel to demonstration sites prepared by Hue Provincial Forest Service 20 km west of Hue. Three stands at various stages of development are to be inspected. Stand 1. Acacia hybrid that was planted in December 2004 and is now 3 years and 3 months old see Table below . The following should be noted A ha block received a form pruning and first-lift pruning to 2 m in September 2006 and a second-lift pruning to about 4 m height in November 2007. In the pruned plot trees are now about 11-12 cm in diameter and 11 m tall on average. First lift and form pruning was done well. The pruning wounds are starting to be covered by bark. This stand is also ready for a first thinning. How are trees for thinning selected The benefits of thinning will be considered at Dong Hoi. This stand demonstrates the results of years of silvicultural improvement. Note the comparison with the untreated areas in adjacent parts of the plantation. 2 Stand 2. Acacia hybrid that was planted in October 2005 and is now 2 years and 6 months old. The following should be noted A ha plot was singled in November 2006. The adjacent trees are not singled and 30 of the trees in this adjacent area have multiple leaders highlighting the benefits of singling. The trees are currently about 6-7 m in height. The canopies of the trees are starting to close. This is associated with the commencement of crown lift. Crown lift refers to the death of branches
