Title:

Metabolic and physiological responses in the foliage and roots of three coniferous tree species growing along a hydrological gradient in southeast Alaska, USA

Author(s):

Minocha, Rakesh; Long, Stephanie; Minocha, Subhash C.; Long, James H.; Laursen, Gary A.

Publication Year:

2023

How to Cite:

These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

Minocha, Rakesh; Long, Stephanie; Minocha, Subhash C.; Long, James H.; Laursen, Gary A. 2023. Metabolic and physiological responses in the foliage and roots of three coniferous tree species growing along a hydrological gradient in southeast Alaska, USA. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2023-0066

Abstract:

This data publication includes the foliar and corresponding root data from Tsuga heterophylla, Picea sitchensis and Pinus contorta collected from 12 sites across the Douglas Island-Juneau complex in southeast Alaska that represent a hydrological gradient. The foliar and root metabolites are part of a study on the impact of comparative hydrologic conditions on tree response/adaptation. From September 30 to October 3, 2010, depending upon availability, foliage from up to 12 trees per site for each of the 3 species were randomly sampled from 3 replicate sites of Palustrine Emergent (PEM), Palustrine Scrub-Shrub (PSS), Palustrine Forested (PFO) Wetlands and Forested Uplands (U) (as defined by the National Wetlands Inventory); together these sites constitute a continuum of conditions associated with each wetland designation. Our goal was to sample, where possible, at least five taller trees (heights varied by species and site) for foliage only, and both foliage and roots from at least 3 relatively shorter trees for the ease of collecting fine roots. Foliar and root data presented here include free polyamines, free amino acids, and soluble ions analyzed by High Performance Liquid Chromatography (HPLC) and Inductively Coupled Plasma Optical Emission Spectrophotometer (ICP-OES). Site characteristics are also provided.

Keywords:

biota; environment; inlandWaters; Ecology, Ecosystems, & Environment; Ecology; Hydrology, watersheds, sedimentation; Plant ecology; Forest & Plant Health; Botany; polyamines; amino acids; exchangeable ions; foliar physiology; metabolism; nutrients; Tsuga heterophylla; western hemlock; Picea sitchensis; Sitka spruce; Pinus contorta; shore pine; Alaska; Borough of Juneau; Juneau; Douglas Island

Related publications:

• Bisbing, Sarah M.; Cooper, David J.; D'Amore, David V.; Marshall, Kristin N. 2016. Determinants of conifer distributions across peatland to forest gradients in the coastal temperate rainforest of southeast Alaska. Ecohydrology. 9: 354-367. https://www.fs.usda.gov/research/treesearch/54099. https://doi.org/10.1002/eco.1640
• Bisbing, Sarah M.; D'Amore, David V. 2018. Nitrogen dynamics vary across hydrologic gradients and by forest community composition in the perhumid coastal temperate rainforest of southeast Alaska. Journal of Forest Research. 48: 180-191. https://doi.org/10.1139/cjfr-2017-0178
• Cowardin, Lewis, M.; Carter, Virginia; Golet, Francis C.; LaRoe, Edward, T. 1979. Classification of wetlands and deepwater habitats of the United States. Fish and Wildlife Service / Office of Biological Services. FWS/OBS-79/31. Washington, DC: U.S. Department of the Interior, Fish and Wildlife Service.

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