GSTDTAP  > 气候变化
DOI10.1016/j.foreco.2017.02.050
Forest succession along a productivity gradient following fire exclusion
Johnston, James D.
2017-05-15
发表期刊FOREST ECOLOGY AND MANAGEMENT
ISSN0378-1127
EISSN1872-7042
出版年2017
卷号392
文章类型Article
语种英语
国家USA
英文摘要

Numerous studies have documented significant change in conifer forests of the American West following the cessation of recurrent fire at the end of the 19th century. But the successional dynamics that characterize different forested settings in the absence of fire remain poorly understood. This study reconstructs structural and compositional change over 150 years across a productivity gradient that includes both mixed conifer and ponderosa pine forests within a 688,000 ha study area in the southern Blue Mountains of eastern Oregon. Moister and more productive forest stands dominated by grand fir did not support more tree basal area and were not appreciably denser in 1860 than drier and less productive stands dominated by ponderosa pine. The greatest magnitude of change over the last 150 years has occurred in the most productive mixed conifer stands. Drier ponderosa pine dominated stands with significant live old-growth structure have experienced relatively little change even after more than a century without fire. Reconstruction of historical forest density in productive mixed conifer forests suggests these sites were historically coupled to the broader dry forest landscape pattern via frequent fire disturbance and should be a priority for restoration if a return to historical conditions is a goal of management. (C) 2017 Elsevier B.V. All rights reserved.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000400201900005
WOS关键词MIXED-CONIFER FORESTS ; PONDEROSA PINE FORESTS ; WESTERN UNITED-STATES ; SOUTHERN CASCADES ; PACIFIC-NORTHWEST ; OLD-GROWTH ; STRUCTURAL DEVELOPMENT ; SPATIAL-PATTERNS ; MONTANE FORESTS ; CENTRAL OREGON
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/22507
专题气候变化
作者单位Oregon State Univ, Coll Forestry, 140 Peavy Hall,3100 SW Jefferson Way, Corvallis, OR 97333 USA
推荐引用方式
GB/T 7714
Johnston, James D.. Forest succession along a productivity gradient following fire exclusion[J]. FOREST ECOLOGY AND MANAGEMENT,2017,392.
APA Johnston, James D..(2017).Forest succession along a productivity gradient following fire exclusion.FOREST ECOLOGY AND MANAGEMENT,392.
MLA Johnston, James D.."Forest succession along a productivity gradient following fire exclusion".FOREST ECOLOGY AND MANAGEMENT 392(2017).
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