Investigation of the work productivity of the mini-excavators used for terrace forestations.

The machine use in the afforestation activities includes tasks such as land clearing and soil cultivation under different site conditions. Covering about half of Turkey's land is steeply sloping, therefore terrace plantations is obligatory. Growth problems of sampling caused by lack of water and soil on the steep slopes can be solved by the terracing of the land. In this study, working productivity mini-excavator used in terrace forestation was investigated in Bursa region. In this context, mini-excavators operations in the terrace forestation were investigated, and time measurements were carried out. According to data obtained, working efficiencies determined according to the types of the terrace and machinery, and their ecosystem effects on determined. Mean working efficiencies were calculated as trenched terraces 34.12 m/sa, pitted terraces 20.25 m/sa. As a result, use of mini-excavators with high productivity and not harming the ecosystem should be encouraged in terrace plantations on the steep terrain.