Monday, June 7, 2010

A management plan for Albizia odorotissima

A management plan for Albizia odorotissima

Abstract of a seminar presentation
Based on a hypothetically formed plantation company
Niranjan Kannangara

Albizia odorotissma is a medium sized tree highly valued for shade and soil improvement. It is a multipurpose woody legume which obtains a height of 22-26 m and diameter of 120-150 cm. On good sites five-year-old trees can be 5 m in height and 14 cm in diameter. A mean annual diameter increment of 1.3 cm. Albizia odoratissimatolerates a wide range of temperatures and rainfall. In its natural range the maximum shade temperature varies from 37°-50°C and the minimum from 0°-15°C. Normal rainfall varies from 650-3000 mm.





It is used as a valuble timber for furniture making, as a fuel wood, and fodder for cattle grazing. The species is used in a plantation located in Puttalam with an extent of 50ha. 625 trees are planted in 1 ha and entire land is utilized as batch wise. After demarcating, fencing and clearing is done before the seedlings are planted. In the initial year 1 ha plot is planted with 625 seedlings. Although the natural rotation age is 40 yrs we are expecting to harvest within 25 yrs by providing more favorable conditions. This species is more resistant for pest and Diseases. Weeding is done properly. After the pruning stage there will be 3 thinnings and then the final harvest. A net profit of 51 million is expected.



2 comments: