Environmental Data Initiative logo
EDI Staging Environment

This data package was submitted to a staging environment for testing purposes only. Use of these data for anything other than testing is strongly discouraged.

This data package is not the most recent revision of a series.  (View Newest Revision)

Data Package Summary    View Full Metadata

  • Foliar and sapwood tissue response to Ca-treatments at Hubbard Brook Experimental Forest, 2000 – 2015
  • Minocha, Rakesh
    Long, Stephanie
  • 2019-02-11
  • Minocha, R. and S. Long. 2020. Foliar and sapwood tissue response to Ca-treatments at Hubbard Brook Experimental Forest, 2000 – 2015 ver 3. Environmental Data Initiative. https://doi.org/DOI_PLACE_HOLDER (Accessed 2024-12-28).

  • Background

    Acidic deposition has caused a depletion of calcium (Ca) in the northeastern forest soils. One time application of wollastonite (CaSiO3 - 1.2 Mg ha-1 of Ca) was done at watershed 1 (WS1) of the Hubbard Brook Experimental Forest (HBEF) in 1999 to evaluate its effects on various functions of the HBEF ecosystem. This rate of application was intended to increase the existing base saturation of the soil from 10% to approximately 19%, and to increase the soil pH to the level that was estimated to exist ~50 years prior to treatment. More details on the treatment can be found at http://www.hubbardbrook.org/research/longterm/calcium/w1_overview/index.html. The overall objective of this study was to evaluate changes in foliar and sapwood metabolic parameters and microbial diversity as indicators of stress and overall health in trees exposed to Ca-supplementation. Raw data from Ca-treated WS1 are compared with WS3 (reference watershed) for cellular metabolites, exchangeable foliar chemistry (not totals) 2000-2015. These watersheds are in close proximity (less than 1.5 Km apart) with similar geology, temperature, soils, and overall climate. For more details see a list of references given below

    Ca-Supplementation-Metabolic Study (WS1 & along eastern edge of WS3)

    SUMMARY: The effects of Ca addition on foliar soluble (extractable in 5% HClO4) ions, chlorophyll, polyamines, and amino acids were studied in three hardwood species, namely sugar maple, yellow birch, and American beech. We further analyzed these effects in relation to elevation at Ca-supplemented WS1 and reference WS3 watersheds. During the earlier years foliar soluble Ca increased significantly in all species at mid and high elevations at Ca-supplemented WS1. This was accompanied by increases in soluble P, chlorophyll, and two amino acids, glutamate and glycine. A decrease in known metabolic indicators of physiological stress (i.e. the amino acids, arginine and γ-aminobutyric acid (GABA), and the diamine, putrescine) was also observed. In general, these changes were species-specific and occurred in an elevation dependent manner. Despite an observed increase in Ca at high elevation for all three species, only sugar maple exhibited a decrease in foliar putrescine at this elevation indicating possible remediation from Ca deficiency. At higher elevations of the reference WS3 site, foliar concentrations of Ca and Mg, as well as Ca:Mn ratios were lower, whereas Al, putrescine, spermidine, and GABA were generally higher. Comparison of metabolic data from these three species reinforces the earlier findings that sugar maple is the most sensitive and American beech the least sensitive species to soil Ca limitation. Furthermore, there was an increase in sensitivity with an increase in elevation.

    These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.

  • Geographic Coordinates
    • N: 43.959286, S: 43.952053, E: -71.726311, W: -71.731339
    • N: 43.962128, S: 43.939945, E: -71.687683, W: -71.725502
  • This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.
  • DOI PLACE HOLDER
  • Analyze this data package using:           

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

UNM logo UW-M logo