Bond, B.; Allen, S. 2016. Throughfall and Isotopic Ratios on WS1 at the Andrews Experimental Forest, 2010-2011 Long-Term Ecological Research Andrews Forest LTER Site. [Database]. Available: https://andrewsforest-stage.forestry.oregonstate.edu/data/fsdb-data-catalog/MV003 Accessed 2026-05-10.

The data in this set describes the throughfall collection on WS1 during 2010 and 2011, as well as the isotopic data assessed from these samples. In the Fall of 2010 there were eleven collection periods and in the Spring of 2011 there were eight collection periods. Data is no longer being collected. Throughfall and rainfall were measured at point locations, measured for the quantity and isotopic composition (Oxygen-16/18 and Hydrogen/Deuterium). Stemflow was also collected off of two PSME trees, one on the north-facing and one on the south-facing slope. These are the "plots" for this study, although they have no defined radius. During the Fall 2010 collection period, thirteen collectors were used, near the stream channel, along the trail in WS1. During the Spring 2011, there were eighteen collectors at each of two plots. Rainfall was also measured in an opening at the WS1 landing for comparison.

Temporal coverage: 2010-10-09 to 2011-07-10

Geographic coverage: WS01 at the HJ Andrews Experimental Forest

Spatial coverage:

Bounds: W -122.25850600, E -122.25591200, N 44.20695800, S 44.20596900

• Our goal was to develop a better understanding of the canopy processes that control the isotopic variations of throughfall. Additionally we were interested in patterns of throughfall isotopic composition and depth. Better understanding of throughfall patterns in heterogeneous terrain is important because since both rainfall and vegetation patterns are highly variable in complex terrain, and summer interception loss could be an important control over the spatial variability of the availability of moisture, coinciding with when vegetation is most water-limited.

Title: Long-Term Ecological Research

• Barbara J Bond
  Role: Principal Investigator
  Oregon State University;Dept. of Forest Science;330 Richardson Hall, Corvallis, OR, 97331, USA
  Phone: (541) 737-6110, (541) 908-2515
  Email: barbara.bond@oregonstate.edu
• Barbara J Bond
  Role: Creator
  Oregon State University;Dept. of Forest Science;330 Richardson Hall, Corvallis, OR, 97331, USA
  Phone: (541) 737-6110, (541) 908-2515
  Email: barbara.bond@oregonstate.edu
• Scott Thomas Allen
  Role: Creator
  Phone: 410-336-3383
  Email: scottallen1@gmail.com

• Information Manager
  Andrews Forest LTER Program, US Forest Service Pacific Northwest Research Station, 3200 SW Jefferson Way, Corvallis, OR, 97331
  Email: hjaweb@fsl.orst.edu
  URL: http://andrewsforest.oregonstate.edu/

• Andrews Forest LTER Site
  Role: Publisher
  Forest Ecosystems and Society Department in Forestry, Oregon State University, 201K Richardson Hall, Corvallis, OR, 97331-5752
  Phone: (541) 737-8480
  Email: lterweb@fsl.orst.edu
  URL: http://andrewsforest.oregonstate.edu/

The data in this set describes the throughfall collection on WS1 during 2010 and 2011, as well as the isotopic data assessed from these samples. In the Fall of 2010 there were eleven collection periods and in the Spring of 2011 there were eight collection periods. Data is no longer being collected. Throughfall and rainfall were measured at point locations, measured for the quantity and isotopic composition (Oxygen-16/18 and Hydrogen/Deuterium). Stemflow was also collected off of two PSME trees, one on the north-facing and one on the south-facing slope. These are the "plots" for this study, although they have no defined radius. During the Fall 2010 collection period, thirteen collectors were used, near the stream channel, along the trail in WS1. During the Spring 2011, there were eighteen collectors at each of two plots. Rainfall was also measured in an opening at the WS1 landing for comparison. Our goal was to develop a better understanding of the canopy processes that control the isotopic variations of throughfall. Additionally we were interested in patterns of throughfall isotopic composition and depth. Better understanding of throughfall patterns in heterogeneous terrain is important because since both rainfall and vegetation patterns are highly variable in complex terrain, and summer interception loss could be an important control over the spatial variability of the availability of moisture, coinciding with when vegetation is most water-limited. Field Methods - MV003

Purpose: Our goal was to develop a better understanding of the canopy processes that control the isotopic variations of throughfall. Additionally we were interested in patterns of throughfall isotopic composition and depth. Better understanding of throughfall patterns in heterogeneous terrain is important because since both rainfall and vegetation patterns are highly variable in complex terrain, and summer interception loss could be an important control over the spatial variability of the availability of moisture, coinciding with when vegetation is most water-limited.

Method Steps

Sampling

No software entries listed in this EML file.

• LTER controlled vocabulary: interception (theme), throughfall (theme), water balance (theme), evaporation (theme)

• All Organisms: All Organisms
• Highest common category (ca. kingdom): Plantae
• Division or Phylum: Magnoliophyta
• Class: Magnoliopsida
• Subclass: Hamamelididae
• Order: Fagales
• Family: Fagaceae
• Genus: Chrysolepis
• Species: Castanopsis chrysophylla
• Family: Betulaceae
• Genus: Alnus
• Species: Alnus rubra
• Subclass: Rosidae
• Order: Rhamnales
• Family: Rhamnaceae
• Genus: Rhamnus
• Species: Rhamnus purshiana
• Order: Rosales
• Family: Rosaceae
• Genus: Prunus
• Species: Prunus emarginata
• Order: Sapindales
• Family: Aceraceae
• Genus: Acer
• Species: Acer macrophyllum
• Subclass: Dilleniidae
• Order: Ericales
• Family: Ericaceae
• Genus: Arbutus
• Species: Arbutus menziesii
• Division or Phylum: Coniferophyta
• Class: Pinopsida
• Order: Pinales
• Family: Cupressaceae
• Genus: Thuja
• Species: Thuja plicata
• Family: Pinaceae
• Genus: Pseudotsuga
• Species: Pseudotsuga menziesii
• Genus: Tsuga
• Species: Tsuga heterophylla
• Order: Taxales
• Family: Taxaceae
• Genus: Taxus
• Species: Taxus brevifolia

No related dataset codes found in the EML text fields.

• Allen, Scott T. 2012. Trickle-down Ecohydrology: Complexity of Rainfall Interception and Net Precipitation under Forest Canopies. Corvallis, OR: Oregon State University. 174 p. M.S. thesis.
• Allen, S. T.; Brooks, J. R.; Keim, R. F.; Bond, B. J.; McDonnell, J. J. 2014. The role of pre-event canopy storage in throughfall and stemflow by using isotopic tracers. Ecohydrology. 7: 858-868. doi: 10.1002/eco.1408
• Allen, Scott T.; Keim, Richard F.; McDonnell, Jeffrey J. 2015. Spatial patterns of throughfall isotopic composition at the event and seasonal timescales. Journal of Hydrology. 522: 58-66. doi: 10.1016/j.jhydrol.2014.12.029

No related files listed in this EML file.

Data Use Agreement:

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. This Data Set is released under the Creative Commons license CC BY "Attribution" (see: https://creativecommons.org/licenses/by/4.0/). Creative Commons license CC BY - Attribution is a license that allows others to distribute, remix, tweak, and build upon your work (even commercially), as long as you are credited for the original creation. This license accommodates maximum dissemination and use of licensed materials.

It is considered professional conduct and an ethical obligation to acknowledge the work of other scientists. The Data User is asked to provide attribution of the original work if this data package is shared in whole or by individual parts or used in the derivation of other products. A recommended citation is provided for each Data Set in the Andrews LTER data catalog (see: http://andlter.forestry.oregonstate.edu/data/catalog/datacatalog.aspx). A generic citation is also provided for this Data Set on the website https://portal.edirepository.org in the summary metadata page. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed and 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.

General acknowledgement: Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.

License: N/A

Maintenance update frequency: notPlanned

Description

• An update history is logged and maintained with each new version of every dataset.

Change History

• Version1 (2012-06-14)
  Study code and preliminary metadata established
• Version2 (2013-08-12)
  Metadata and data have been uploaded to SQL and QC'd. Data is being restricted pending publication of journal articles.
• Version3 (2016-05-04)
  Data is being released per originator after the publication of 2 journal papers.