Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.01.002 |
Influence of reproduction cutting methods on structure, growth and regeneration of longleaf pine forests in flatwoods and uplands | |
Brockway, Dale G.1; Outcalt, Kenneth W.2 | |
2017-04-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 389 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Though longleaf pine (Pinus palustris Mill.) forests have been primarily managed with even-aged methods, interest is increasing in uneven-aged systems, as a means of achieving a wider range of stewardship goals. Selection silviculture has been practiced on a limited scale in longleaf pine, but difficulty with using traditional approaches and absence of an evaluation across a range of site types has left managers in doubt concerning its suitability. This study was conducted to quantify the effects on stand dynamics of applying single-tree selection, group selection, irregular shelterwood and uniform shelterwood in longleaf pine forests on flatwoods and uplands of the southeastern United States. Selection treatments reduced stand basal area to similar to 11.5 m(2) ha(-1) and shelterwood treatments left a basal area of similar to 5.8 m(2) ha(-1). In spite of initial decreases in tree density and standing volume, growth rates were normal in all stands (1-5% per year), as were subsequent increases in basal area and tree density. Despite the continuing abundance of saw-palmetto (Serenoa repens W. Bartram) cover and absence of prescribed fire during the eight post-treatment years, significant increases in pine regeneration were observed in all treated stands in the flatwoods. Because of a. multi-year drought in the uplands, pine seedling numbers dramatically declined, no matter which reproduction approach was employed. Although seedling numbers eventually began to recover, they were again precipitously depressed by a wildfire in 2013. Even with such losses, sufficient pine seedlings remained in each treatment to foster successful stand regeneration. Single-tree selection produced less overall change in the forest ecosystem than group selection, which caused less alteration than shelterwood treatment. Single-tree selection appears to be an effective way for achieving stand regeneration, while maintaining a continuous canopy cover that aids in the control of woody competitors and supports an array of resource values. Selection silviculture seems to be a lower risk approach for guiding forests along a trajectory of gradual improvement, with adjustments provided by frequent surface fires and periodic tree harvest. Long-term observation will be required to verify that selection can sustain forest ecosystems on sites characterized by differing environments. Published by Elsevier B.V. |
英文关键词 | Pinus palustris Mill. Continuous cover forestry Pro-B method Selection systems Uneven-aged silviculture Shelterwood methods Even-aged silviculture |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398868800025 |
WOS关键词 | SOUTHEASTERN UNITED-STATES ; PRESCRIBED FIRE ; WIREGRASS ECOSYSTEMS ; NATURAL DISTURBANCE ; PALUSTRIS ; SILVICULTURE ; MANAGEMENT ; SYSTEMS ; FLORIDA ; CONSERVATION |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/22204 |
专题 | 气候变化 |
作者单位 | 1.US Forest Serv, Southern Res Stn, USDA, 521 Devall Dr, Auburn, AL 36849 USA; 2.US Forest Serv, Southern Res Stn, USDA, 320 Green St, Athens, GA 30602 USA |
推荐引用方式 GB/T 7714 | Brockway, Dale G.,Outcalt, Kenneth W.. Influence of reproduction cutting methods on structure, growth and regeneration of longleaf pine forests in flatwoods and uplands[J]. FOREST ECOLOGY AND MANAGEMENT,2017,389. |
APA | Brockway, Dale G.,&Outcalt, Kenneth W..(2017).Influence of reproduction cutting methods on structure, growth and regeneration of longleaf pine forests in flatwoods and uplands.FOREST ECOLOGY AND MANAGEMENT,389. |
MLA | Brockway, Dale G.,et al."Influence of reproduction cutting methods on structure, growth and regeneration of longleaf pine forests in flatwoods and uplands".FOREST ECOLOGY AND MANAGEMENT 389(2017). |
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