首页   按字顺浏览 期刊浏览 卷期浏览 Historical and Anticipated Changes in Forest Ecosystems of the Inland West of the Unite...
Historical and Anticipated Changes in Forest Ecosystems of the Inland West of the United States

 

作者: W.Wallace Covington,   RichardL. Everett,   Robert Steele,   LarryL. Irwin,   TomA. Daer,   AllanN.D. Auclair,  

 

期刊: Journal of Sustainable Forestry  (Taylor Available online 1994)
卷期: Volume 2, issue 1-2  

页码: 13-63

 

ISSN:1054-9811

 

年代: 1994

 

DOI:10.1300/J091v02n01_02

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Euro-American settlement of the Inland West has altered forest and woodland landscapes, species composition, disturbance regimes, and resource conditions. Public concern over the loss of selected species and unique habitats (e.g., old-growth) has caused us to neglect the more pervasive problem of declining ecosystem health. Population explosions of trees, exotic weed species, insects, diseases, and humans are stressing natural systems. In particular, fire exclusion, grazing, and timber harvest have created anomalous ecosystem structures, landscape patterns, and disturbance regimes that are not consistent with the evolutionary history of the indigenous biota. Continuation of historical trends of climate change, modified atmospheric chemistry, tree density increases, and catastrophic disturbances seems certain. However, ecosystem management strategies including the initiation of management experiments can facilitate the adaptation of both social and ecological systems to these anticipated changes. A fairly narrow window of opportunity-perhaps 15-30 years-exists for land managers to implement ecological restoration treatments.

 

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