摘要
湿地松早期生长迅速,如何使湿地松最快地产生经济效益就显得十分重要。本试验通过对广西环江毛南族自治县华山林场5年生湿地松人工林进行采脂试验,结果表明:湿地松早期采脂经济效益显著,具有较高的获利能力,采脂林分NPV(16 089.13)、IRR(39.2%)均远高于未采脂林分NPV(-3 165.91)、IRR(-2.2%)。同时可带来相当可观的劳动力需求,具有良好的社会效益。采脂对湿地松的生长有一定的影响,松脂产量与其胸径相关紧密。
Slash Pine is rapid to grow in early,how to make it to produce economic benefits quickly is important.In this experiment,5 years old Slash Pine plantation was tapped to study in Huashan forest farm of Huanjiang Maonan autonomous County of Guangxi.The results showed that the economic benefit of early tapping on Slash Pine trees is notable,and profitability is very high,the NPV and IRR of tapped stand are much higher than that of not tapped.Tapping also brings considerable labor demand and have good social benefit,but have some influence to the growth of trees.Resin yield was associated with diameter of brest-height.
出处
《林业经济问题》
北大核心
2011年第4期334-336,356,共4页
Issues of Forestry Economics
基金
国家科技支撑计划课题"马尾松大径材及高产脂林定向选育及栽培关键技术研究与示范"(2006BAD24B0301-2)
广西科技创新能力建设项目(桂科能0443001-9)
关键词
湿地松
人工林
松脂
经济效益
Pinus ellottii Engelm
plantation
tapping
economic benefit
