Can coppicing planted saplings improve the growing position of mid-tolerant northern hardwood tree species in harvest gaps?

Cerrenaunicolor (Bull.: Fr.) Murr. (= Daedaleaunicolor) (Aphyllophorales, Polyporaceae) was found to cause a canker rot on two northern hardwood tree species, sugar maple (Acersaccharum Marsh.) and paper birch (Betulapapyrifera Marsh.). Pathogenicity of the fungus was determined by inoculation and examination of cankers 6 months, 1.5 years, and 2.5 years later. The two isolates used were found to differ in pathogenicity. Chemical and morphological barriers formed to compartmentalize the fungus. A zone of enhanced cell wall lignification and the formation of suberized impervious cells which composed the necrophylactic periderm in the host were observed. Xylem discoloration, callus formation, and periderm layers were more pronounced in maple than in birch. Cerrenaunicolor moved past host barriers via a mass of hyphae which annually penetrated weak points in the necrophylactic periderm and subsequently killed the adjacent cambium. Once past the necrophylactic periderm and into the xylem, C. unicolor was an aggressive decay organism which caused an extensive white rot. In naturally infected trees, columns of decay were two or three times longer than the cankers. Multiple zones of decayed and discolored wood were present in the xylem as a result of repeated attacks by the fungus.

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Photosynthetic responses to understory shade and elevated carbon dioxide concentration in four northern hardwood tree species

Tree Physiology ◽

10.1093/treephys/26.12.1589 ◽

2006 ◽

Vol 26 (12) ◽

pp. 1589-1599 ◽

Cited By ~ 15

Author(s):

L. T. Sefcik ◽

D. R. Zak ◽

D. S. Ellsworth

Keyword(s):

Carbon Dioxide ◽

Tree Species ◽

Carbon Dioxide Concentration ◽

Elevated Carbon Dioxide ◽

Northern Hardwood ◽

Hardwood Tree ◽

Photosynthetic Responses ◽

Elevated Carbon Dioxide Concentration

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SEASONAL PATTERNS OF LEAF PHOTOSYNTHETIC CAPACITY IN SUCCESSIONAL NORTHERN HARDWOOD TREE SPECIES

American Journal of Botany ◽

10.1002/j.1537-2197.1986.tb09688.x ◽

1986 ◽

Vol 73 (1) ◽

pp. 131-138 ◽

Cited By ~ 17

Author(s):

Thomas W. Jurik

Keyword(s):

Tree Species ◽

Photosynthetic Capacity ◽

Seasonal Patterns ◽

Northern Hardwood ◽

Hardwood Tree

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INVESTIGATING THE EFFECTS OF SHORT- AND LONG-TERM CLIMATIC VARIATION ON THE WATER USE OF THREE NORTHERN HARDWOOD TREE SPECIES

10.37099/mtu.dc.etds/1011 ◽

2015 ◽

Author(s):

Alex R. Collins

Keyword(s):

Water Use ◽

Tree Species ◽

Climatic Variation ◽

Northern Hardwood ◽

Short And Long Term ◽

Hardwood Tree

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Forest Vegetation of Hardwood Tree Species along the Mirna River in Istria (Croatia)

South-east European forestry ◽

10.15177/seefor.18-05 ◽

2018 ◽

Vol 9 (1) ◽

Cited By ~ 1

Author(s):

Joso Vukelić ◽

Patrik Korijan ◽

Irena Šapić ◽

Antun Alegro ◽

Vedran Šegota ◽

...

Keyword(s):

Tree Species ◽

Forest Vegetation ◽

Hardwood Tree

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Metagenomic reconstruction of nitrogen and carbon cycling pathways in forest soil: Influence by different hardwood tree species

10.1101/2020.06.23.167700 ◽

2020 ◽

Author(s):

Charlene N. Kelly ◽

Geoffrey W. Schwaner ◽

Jonathan R. Cumming ◽

Timothy P. Driscoll

Keyword(s):

Tree Species ◽

Plant Litter ◽

American Chestnut ◽

Soil Microbiome ◽

Red Oak ◽

Black Cherry ◽

Soil Microbial ◽

Below Ground ◽

C And N ◽

Hardwood Tree

AbstractThe soil microbiome plays an essential role in processing and storage of nitrogen (N) and carbon (C), and is influenced by vegetation above-ground through imparted differences in chemistry, structure, mass of plant litter, root physiology, and dominant mycorrhizal associations. We used shotgun metagenomic sequencing and bioinformatic analysis to quantify the abundance and distribution of gene families involved in soil microbial N and C cycling beneath three deciduous hardwood tree species: ectomycorrhizal (ECM)-associated Quercus rubra (red oak), ECM-associated Castanea dentata (American chestnut), and arbuscular mycorrhizal (AM)-associated Prunus serotina (black cherry). Chestnut exhibited the most distinct soil microbiome of the three species, both functionally and taxonomically, with a general suppression of functional genes in the nitrification, denitrification, and nitrate reduction pathways. These changes were related to low inorganic N availability in chestnut stands as soil was modified by poor, low-N litter quality relative to red oak and black cherry soils.IMPORTANCEPrevious studies have used field biogeochemical process rates, isotopic tracing, and targeted gene abundance measurements to study the influence of tree species on ecosystem N and C dynamics. However, these approaches do not enable a comprehensive systems-level understanding of the relationship between microbial diversity and metabolism of N and C below-ground. We analyzed microbial metagenomes from soils beneath red oak, American chestnut, and black cherry stands and showed that tree species can mediate the abundance of key microbial genes involved in N and (to a lesser extent) C metabolism pathways in soil. Our results highlight the genetic framework underlying tree species’ control over soil microbial communities, and below-ground C and N metabolism, and may enable land managers to select tree species to maximize C and N storage in soils.

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Forest age and management effects on epiphytic bryophyte communities in Adirondack northern hardwood forests, New York, U.S.A.

Canadian Journal of Forest Research ◽

10.1139/x02-083 ◽

2002 ◽

Vol 32 (9) ◽

pp. 1562-1576 ◽

Cited By ~ 54

Author(s):

Gregory G McGee ◽

Robin W Kimmerer

Keyword(s):

New York ◽

Community Composition ◽

Tree Species ◽

Large Diameter ◽

Hardwood Forests ◽

Host Tree ◽

Old Growth ◽

Northern Hardwood Forests ◽

Northern Hardwood ◽

Host Tree Species

The objective of this study was to assess the influence of substrate heterogeneity on epiphytic bryophyte communities in northern hardwood forests of varying disturbance histories. Specifically, we compared bryophyte abundance (m2·ha1) and community composition among partially cut; maturing, 90- to 100-year-old, even-aged; and old-growth northern hardwood stands in Adirondack Park, New York, U.S.A. Total bryophyte cover from 0 to 1.5 m above ground level on trees [Formula: see text]10 cm diameter at breast height (DBH) did not differ among the three stand types. However, bryophyte community composition differed among host tree species and among stand types. Communities in partially cut and maturing stands were dominated by xerophytic bryophytes (Platygyrium repens, Frullania eboracensis, Hypnum pallescens, Brachythecium reflexum, Ulota crispa), while old-growth stands contained a greater representation of calcicoles and mesophytic species (Brachythecium oxycladon, Anomodon rugelii, Porella platyphylloidea, Anomodon attenuatus, Leucodon brachypus, Neckera pennata). This mesophyte-calcicole assemblage occurred in all stand types but was limited by the abundance of large-diameter (>50 cm DBH), thick-barked, hardwood host trees (Acer saccharum Marsh., Tilia americana L., Fraxinus americana L.). This study suggested that epiphytic bryophyte diversity can be sustained and enhanced in managed northern hardwood forests by maintaining host tree species diversity and retaining large or old, thick-barked residual hardwood stems when applying even-aged and uneven-aged silviculture systems.

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