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Chapter 8. Assessing the Impacts of Severe Fire on Forest Ecosystem Recovery

 

作者: Kermit Cromack,   JohannaD. Landsberg,   RichardL. Everett,   Ronald Zeleny,   ChristianP. Giardina,   EvaK. Strand,   TomD. Anderson,   Robert Averill,   Rose Smyrski,  

 

期刊: Journal of Sustainable Forestry  (Taylor Available online 2000)
卷期: Volume 11, issue 1-2  

页码: 177-228

 

ISSN:1054-9811

 

年代: 2000

 

DOI:10.1300/J091v11n01_08

 

出版商: Taylor & Francis Group

 

关键词: Fire;wildfire;nutrients;erosion;soil;GIS;forest ecosystems;thunderstorm

 

数据来源: Taylor

 

摘要:

The potential for severe impacts from a wildland fire, with or without a subsequent severe precipitation event, was evaluated in western and central Colorado and in a case-study area, the former Rio Grande National Forest (NF) of the San Juan-Rio Grande NF. The evaluation involved identifying the factors that are conducive to vulnerability and, additionally, the factors that impede or enhance recovery. Forest ecosystem characteristics that can increase vulnerability to the effects of a severe fire, with or without a subsequent severe precipitation event, include: relative flammability of forest floor materials, the location of nutrient storage (above or below ground), depth of soil, site quality, steepness of slopes, propensity to produce hydrophobic soils, and likelihood of mass movement, among others. Ponderosa pine forests appear more vulnerable, with natural regeneration more difficult than for some other types because of the relatively higher flammability of the foliar material in the forest floor, storage of nutrients above ground, and the episodic and infrequent years for good natural regeneration in drier areas.

 

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