Fire regimes and forest structure in a sky island mixed conifer forest, Guadalupe Mountains National Park, Texas, USA

2007 ◽  
Vol 241 (1-3) ◽  
pp. 62-73 ◽  
Author(s):  
John Sakulich ◽  
Alan H. Taylor
Keyword(s):  
Forest Structure ◽  
National Park ◽  
Fire Regimes ◽  
Conifer Forest ◽  
Mixed Conifer ◽  
Mixed Conifer Forest ◽  
Sky Island ◽  
Guadalupe Mountains National Park

scholarly journals Historical and current landscape-scale ponderosa pine and mixed conifer forest structure in the Southern Sierra Nevada

Ecosphere ◽  
2015 ◽  
Vol 6 (5) ◽  
pp. art79 ◽  
Author(s):  
Scott L. Stephens ◽  
Jamie M. Lydersen ◽  
Brandon M. Collins ◽  
Danny L. Fry ◽  
Marc D. Meyer
Keyword(s):  
Sierra Nevada ◽  
Forest Structure ◽  
Ponderosa Pine ◽  
Landscape Scale ◽  
Conifer Forest ◽  
Mixed Conifer ◽  
Mixed Conifer Forest

Stand-level spatial dependence in an old-growth Jeffrey pine – mixed conifer forest, Sierra San Pedro Mártir, Mexico

2010 ◽  
Vol 40 (9) ◽  
pp. 1803-1814 ◽  
Author(s):  
Danny L. Fry ◽  
Scott L. Stephens
Keyword(s):  
Spatial Pattern ◽  
Forest Structure ◽  
Forest Ecosystems ◽  
Conifer Forest ◽  
Spatial Correlations ◽  
Mixed Conifer ◽  
Old Growth ◽  
Jeffrey Pine ◽  
Old Growth Forest ◽  
Mixed Conifer Forest

Descriptions of spatial patterns are important components of forest ecosystems, providing insights into functions and processes, yet basic spatial relationships between forest structures and fuels remain largely unexplored. We used standardized omnidirectional semivariance modeling to examine the spatial pattern of fuels and forest structure measured in a systematic nested plot grid covering 144 ha. Forest structure variables were spatially dependent at scales ranging from 62 to 572 m. Cross-variograms of fuels and forest structure showed both positive and negative correlations, ranging from 0.04 to 0.67. Notably, fine fuels were correlated positively and negatively with forest structure variables of white fir ( Abies concolor (Gord. & Glend.) Lindl. ex Hildebr.) and Jeffrey pine ( Pinus jeffreyi Balf.), respectively. Old-growth Jeffrey pine – mixed conifer forest within the study area exhibited both identifiable spatial correlations and high stand-level spatial heterogeneity, as demonstrated by the influence of outliers on the underlying spatial pattern. The spatial dependency of fuels with species-specific variables suggests that less common species may have a large influence in the characterization of forest attributes and that fuel classifications may be improved by accounting for the spatial distributions of overstory species. Spatial correlations have many applications to forest management, including the classification and mapping of forest structure, establishing guidelines for fuel treatments, and restoration of old-growth forest ecosystems.

Long-term effects of prescribed fire on mixed conifer forest structure in the Sierra Nevada, California

2011 ◽  
Vol 261 (6) ◽  
pp. 989-994 ◽  
Author(s):  
Phillip J. van Mantgem ◽  
Nathan L. Stephenson ◽  
Eric Knapp ◽  
John Battles ◽  
Jon E. Keeley
Keyword(s):  
Sierra Nevada ◽  
Prescribed Fire ◽  
Forest Structure ◽  
Conifer Forest ◽  
Long Term Effects ◽  
Mixed Conifer ◽  
Mixed Conifer Forest
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