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| New techniques of afforestation on the dry and barren land in the mountainous region of Shandong Province |
| Forestry Sciences Academy of Shandong Province,250014,Jinan,China |
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Abstract The survival rate,tree top growth in early days after plantation and Platycladus orientalis plantation cost of eight afforestation techniques and nine tree species on the dry and barre land of mountainous region of Shandong Province were studied.The afforestation techniques in this experiment were included using no-woven-cloth container seedling with balance-root-system,rational arrangement of tree-shrub-rattan,scale-shaped pit soil preparation,level step soil preparation,terraced field,shrub and grass covering,super absorbent polymer,and traditional afforestation techniques(hole shape soil preparation,CK).The result showed that the seven new techniques improved the mean survive rate by 2.6%12.7% than CK.In the first year after plantation,compared to the CK,the mean treetop growth was increased 5.9%36.3% by using the seven new techniques,the plantation cost was decreased by 9.3% using the no-woven-cloth container with balance-root-system,while the plantation cost by using the other six techniques was increased 6.2%158.4%.Among the eight new techniques,the using of no-woven-cloth container seedling not only made the highest survive rate,but also made the biggest treetop growth in the early days after plantation,as well as the lowest plantation cost.
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Received: 27 February 2006
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