期刊
FORESTS
卷 13, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/f13081156
关键词
early PCT; late PCT; mixed forest; Norway spruce; pre-commercial thinning; stump sprouting
类别
资金
- FRAS (Future Silviculture for Southern Sweden) research project
This study aimed to investigate the effect of pre-commercial thinning (PCT) and timing of PCT on the production and profitability of Norway spruce stands. The results showed that PCT has a positive effect on the long-term profitability of Norway spruce plantations, but the timing of PCT has little effect on profitability. Additionally, retaining a certain number of Norway spruce and birch trees can lead to profitable mixed forests with little or no economic loss compared to pure Norway spruce stands.
Pre-commercial thinning (PCT) is a common measure in Norway spruce (Picea abies L. Karst.) stands but the profitability of doing PCT and timing of PCT has not been fully investigated over a full rotation. Further, limited knowledge is available for mixed forest management compared to monocultures. In this study, different PCT strategies were tested to investigate the effect of PCT and timing of PCT on the production and profitability of Norway spruce monocultures and mixed Norway spruce-birch stands. A forest decision support system was used to simulate stand development during the whole rotation. Our study findings show that there is a positive effect of PCT on Norway spruce plantations' long-term profitability but that the timing of PCT has little effect on profitability. However, site variation might influence the effect of PCT timing on the profitability of Norway spruce stands. Moreover, we also found that retaining 1000 Norway spruce ha(-1) and 1000 birch ha(-1) after PCT supports a mixture of Norway spruce and birch over a full rotation, with little or no economic loss compared to pure Norway spruce stands. Therefore, such a mixture can lead to profitable production while still providing other ecosystem services.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据