Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.07.040 |
Ecological effects and effectiveness of silvicultural restoration treatments in whitebark pine forests | |
Maher, Colin T.1; Nelson, Cara R.2; Larson, Andrew J.3; Sala, Anna4 | |
2018-12-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 429页码:534-548 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Silvicultural thinning treatments to restore whitebark pine (Pima albicaulis) are widely used in subalpine forests throughout the western United States (US) and Canada. The objectives of these treatments are to (1) improve the condition of whitebark pine at all ages, (2) to improve seedling recruitment processes, and (3) mitigate the damage caused by mountain pine beetle (MPB; Dendroctonus ponderosae) and white pine blister rust (WPBR; caused by the fungus Cronartium ribicola). However, there is some disagreement about the ecological basis of restoration and a paucity of information on the effects these activities few treatments have been monitored to assess their success. We investigated the ecological effects of silvicultural restoration treatments in whitebark pine forests and evaluated their success by retrospectively sampling five treatment sites in the western US 6-10 years after implementation. We found strong evidence of growth release at a site previously characterized by closed-canopy stands. Growth responses in more open, park-like stands, however, were variable: we found weak growth increases at one site, weak growth decreases at another and no response at two other sites. At the site with strong growth increases, trees with previous damage from WPBR infection had growth increases similar to uninfected trees. We found low rates of whitebark pine seedling recruitment overall, and no increase in whitebark pine recruitment associated with treatments at any site. However, at one site, treated stands had higher regeneration of non-target species than did untreated stands. Post-treatment mortality (mostly from the late 2000s MPB outbreak) was significantly lower in the treated stand at the closed-canopy site; at the other sites, there was no difference in mortality between treated and untreated stands. The treatments had little detectable effect on short-term growth-climate relationships, although our analyses revealed that whitebark pine growth at our sites was more temperature limited than water limited. While some management goals were achieved, many were not, and there were some unintended consequences. Our results call for a closer examination of the ecological basis of silvicultural restoration treatments in whitebark pine and an expanded use of adaptive management. |
英文关键词 | Pinus albicaulis Growth response Regeneration Seedling recruitment White pine blister rust, mountain pine beetle |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447103700053 |
WOS关键词 | NORTHERN ROCKY-MOUNTAINS ; RADIAL GROWTH-PATTERNS ; CLIMATIC WATER-DEFICIT ; WESTERN MONTANA ; COMPETITION INDEXES ; ALBICAULIS FORESTS ; CLARK NUTCRACKER ; TREE MORTALITY ; STAND DYNAMICS ; UNITED-STATES |
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/22994 |
专题 | 气候变化 |
作者单位 | 1.Univ Montana, WA Franke Coll Forestry & Conservat, 32 Campus Dr, Missoula, MT 59812 USA; 2.Univ Montana, WA Franke Coll Forestry & Conservat, Dept Ecosyst & Conservat Sci, 32 Campus Dr, Missoula, MT 59812 USA; 3.Univ Montana, WA Franke Coll Forestry & Conservat, Dept Forest Management, 32 Campus Dr, Missoula, MT 59812 USA; 4.Univ Montana, Div Biol Sci, 32 Campus Dr, Missoula, MT 59812 USA |
推荐引用方式 GB/T 7714 | Maher, Colin T.,Nelson, Cara R.,Larson, Andrew J.,et al. Ecological effects and effectiveness of silvicultural restoration treatments in whitebark pine forests[J]. FOREST ECOLOGY AND MANAGEMENT,2018,429:534-548. |
APA | Maher, Colin T.,Nelson, Cara R.,Larson, Andrew J.,&Sala, Anna.(2018).Ecological effects and effectiveness of silvicultural restoration treatments in whitebark pine forests.FOREST ECOLOGY AND MANAGEMENT,429,534-548. |
MLA | Maher, Colin T.,et al."Ecological effects and effectiveness of silvicultural restoration treatments in whitebark pine forests".FOREST ECOLOGY AND MANAGEMENT 429(2018):534-548. |
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