Durkaya Ali, Durkaya Birsen
Faculty of Forestry, Bartin University, Bartin-74100, Turkey.
J Environ Biol. 2009 Jul;30(4):577-81.
Hazelnut plantations, which are a major source of income for the villagers in the eastern Black sea region are notable to provide sufficient income to the villagers due to price fluctuations and sudden falls witnessed in recent years. Alternative investments in place of hazelnut cultivation are being investigated in order to prevent migration to urban areas and to increase the welfare of the rural population in the region. Black alder plantation investments have been assessed as one of the most essential alternative investment tools within the framework of the study Assessment was carried out by comparing expected possible net present values (NPV). Although value increase occurs 12-18 years later more income can be obtained through black alder than hazelnut plantation. In hazelnut plantations, the best NPV emerged in the lower zone. NPV was positive in the moderate zone but values were close to zero. In upper zone, positive NPV couldn't emerge. As a result, it was understood that black alder plantation investment is an effective alternative for hazelnut plantations.
榛子种植园是黑海东部地区村民的主要收入来源，但由于近年来价格波动和突然下跌，无法为村民提供足够的收入。为了防止村民向城市地区迁移并提高该地区农村人口的福利，正在研究替代榛子种植的投资项目。在该研究框架内，黑桤木种植园投资被评估为最重要的替代投资工具之一。评估是通过比较预期可能的净现值（NPV）进行的。尽管价值增长在12至18年后才会出现，但通过黑桤木种植比榛子种植园能获得更多收入。在榛子种植园中，最佳净现值出现在较低区域。中等区域的净现值为正，但数值接近零。在上部区域，无法出现正的净现值。因此，可以理解黑桤木种植园投资是榛子种植园的有效替代方案。
