Throughfall Chemistry In:Canopy and Soil Modification of Precipitation Chemistry in a Temperate Rain Forest

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

Robert L. Edmonds, Ted B. Thomas, and Jon J. Rhodes

Publication_Date: 199111

Title:

Throughfall Chemistry In:Canopy and Soil Modification of Precipitation Chemistry in a Temperate Rain Forest

Series_Information:

Series_Name: Soil Science Society of America Journal

Issue_Identification: Vol 55, No. 6, pp. 1685-1693

Publication_Information:

Publication_Place: Madison, WI

Publisher: Soil Science Society of America

Description:

Abstract:

Little is known about the chemistry of solutions moving through old-growth coastal temperate coniferous rain forests. The major objective of this study was to examine throughfall in an old-growth temperate rain forest in the Hoh River valley on the northwest Washington coast 32 km from the Pacific Ocean, and to determine mechanisms involved with changes in solution chemistry. Dominant species were Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco), western hemlock (Tsuga heterophylla [Raf.] Sarg.), western redcedar (Tsuja plicata Donn), and Pacific silver fir (Abies amabilis [Dougl.] Forbes). Throughfall had an average pH of 5.0, and organic acids were important contributors to acidity. Throughfall was generally enriched in cations, especially K. Organic anions contributed greatly to cation leaching in the canopy, with a much smaller contribution from SO4. Na and Cl dominated throughfall. Throughfall under Pacific silver fir had the highest concentration of both cations and anions.

Purpose:

The major objective of this study was to examine throughfall in an old-growth temperate rain forest.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1986

Ending_Date: 199110

Currentness_Reference: Observed

Status:

Progress: In Work

Maintenance_and_Update_Frequency: Continually

Spatial_Domain:

Description_of_Geographic_Extent:

West Twin Creek and Hoh watersheds in the Olympic National Park, Washington

Bounding_Coordinates:

West_Bounding_Coordinate: -124.05

East_Bounding_Coordinate: -123.93

North_Bounding_Coordinate: 47.87

South_Bounding_Coordinate: 47.83

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: throughfall chemistry

Theme_Keyword: water quality

Theme_Keyword: biogeochemistry

Theme_Keyword: old-growth forest

Theme_Keyword: temperate rain forest

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: USA

Place_Keyword: Washington

Place_Keyword: Olympic Peninsula

Place_Keyword: Olympic National Park

Place_Keyword: Hoh River Valley

Place_Keyword: West Twin Creek Watershed

Stratum:

Stratum_Keyword_Thesaurus: None

Temporal:

Temporal_Keyword_Thesaurus: None

Taxonomy:

Taxonomic_Keywords: tsuga heterophylla

Taxonomic_Keywords: western redcedar

Taxonomic_Keywords: thuja plicata

Taxonomic_Keywords: pacific silver fir

Taxonomic_Keywords: abies amabilis

Taxonomic_Keywords: pseudotsuga menziesii

Taxonomic_Keywords: douglas-fir

Taxonomic_Keywords: western hemlock

Taxonomic_Coverage:

Specific_Taxonomic_Information:

Kingdom: Plant

Division-Phylum: Coniferophyta

Class: Pinopsida

Order: Pinales

Family: Pinaceae

Genus: Abies

Species: Abies amabilis

Applicable_Common_Names: Pacific silver fir

Taxonomic_Coverage:

Specific_Taxonomic_Information:

Kingdom: Plant

Division-Phylum: Coniferophyta

Class: Pinopsida

Order: Pinales

Family: Pinaceae

Genus: Pseudotsuga

Species: Pseudotsuga menziesii

Applicable_Common_Names: Douglas-fir

Taxonomic_Coverage:

Specific_Taxonomic_Information:

Kingdom: Plant

Division-Phylum: Coniferophyta

Class: Pinopsida

Order: Pinales

Family: Pinaceae

Genus: Tsuga

Species: Tsuga heterophylla

Applicable_Common_Names: western hemlock

Taxonomic_Coverage:

Specific_Taxonomic_Information:

Kingdom: Plant

Division-Phylum: Coniferophyta

Class: Pinopsida

Order: Pinales

Family: Cupressaceae

Genus: Thuja

Species: Thuja plicata

Applicable_Common_Names: Western redcedar

Access_Constraints: Must contact author for data.

Use_Constraints: Must cite author if using data in publication.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Georgia Murray

Contact_Organization: University of Washington

Contact_Position: Research Scientist

Contact_Address:

Address_Type: Mailing and Physical Address

Address: University of Washington

Address: PO Box 352100

City: Seattle

State_or_Province: WA

Postal_Code: 98195

Country: USA

Contact_Voice_Telephone: (206) 543-8242

Contact_Electronic_Mail_Address: gmurray@u.washington.edu

Security_Information:

Security_Classification_System: None

Security_Classification: None

Security_Handling_Description: None

Cross_Reference:

Citation_Information:

Originator:

Robert L. Edmonds, Ted B. Thomas, and Roger D. Blew

Publication_Date: 199506

Title:

Precipitation Trends and Chemistry in West Twin Creek Watershed In:Biogeochemistry of an Old-Growth Forested Watershed, Olympic National Park, Washington

Series_Information:

Series_Name: Water Resources Bulletin

Issue_Identification: Vol 31, No. 3 pp. 409-419

Publication_Information:

Publication_Place: Urbana, Il

Publisher: American Water Resources Association

Cross_Reference:

Citation_Information:

Originator: Robert L. Edmonds

Originator: Roger D. Blew

Originator: James L. Marra

Originator: Amy K. Barg

Originator: Georgia Murray

Originator: Ted B. Thomas

Publication_Date: In press

Title:

Vegetation Patterns, Hydrology, and Water Chemistry in Small Watersheds in the Hoh River Valley, Olympic National Park

Series_Information:

Issue_Identification: Scientific Monograph NPSD/NRUSGS/NRSM - 98/02

Publication_Information:

Publisher:

United States Department of Interior, National Park Service

Data_Quality_Information:

Lineage:

Methodology:

Methodology_Type: Field

Methodology_Identifier:

Methodology_Keyword_Thesaurus: None

Methodology_Keyword: throughfall chemistry

Methodology_Description:

Plots for studying throughfall were established in West Twin Creek watershed in areas representing the two major vegetation zones of the basin; at the base (180 m elevation) and top (800 m elevation) of the watershed. Sampling began October 1986 and was conducted through to October 1991. Samples were collected bi-weekly. Throughfall was collected around four tree species. The trees were of different diameters and ages; at lower elevation, two western red cedar (40 and 112 cm dbh), two Douglas-fir (145 and 247 cm dbh), and two western hemlock (49 and 77 cm dbh) trees, and at higher elevation, two western hemlock (73 and 81 cm dbh) and two Pacific silver fir (59 and 141 cm dbh) trees were monitored. The trees were located in a 2.2 ha area in the upper watershed and a 3.3 ha area in the lower watershed. Throughfall collectors were constructed of 10 cm PVC rain gutters extending from the bole of a sampling tree to the edge of the crown. One collector per tree was used; they were placed such that throughfall would be collected from that tree only. Collectors were lined with acid-washed and triple-rinsed linear polyethylene and covered with 2 mm nylon chiffon mesh to keep out litterfall. Throughfall was collected in 120 L polyethylene containers lined with polyethylene bags. Volumes were determined in the field and a 1 L sample from each collector was returned to the laboratory for chemical analysis.

Process_Step:

Process_Description:

Specific conductance, pH and alkalinity were determined on non-filtered samples within a few days after arrival at the laboratory. Specific conductance was determined with a YSI Model 31 Conductivity Bridge (Yellow Springs Instrument Co., Yellow Springs, OH) and pH with a Radiometer PHM 85 pH meter (Radiometer, Copenhagen, Denmark). Alkalinity was determined by titration (Rhoades 1982) to an end point of pH 5. After these measurements the water samples were filtered through a Whatman GF/A filter, stored at 4° C and analyzed within a month after arrival at the laboratory. Solutions were analyzed for Ca, Mg, K, and Na using an IL 951 Atomic Absorption Analyzer (Instrumentation Laboratory, Wilmington, MA). Ammonium and NO3 were determined with a Technicon Autoanalyzer II (Technicon, Tarrytown, NY). Sulfate, Cl, and PO4 were determined with a Dionex 2100 Ion Chromatograph (Dionex, Sunnyvale, CA). Dissolved organic carbon (DOC) was determined using persulfate oxidation at 100° C and an OI Model 700 Organic Carbon Analyzer (OI Corporation, College Station, TX)., Throughfall quantities were used to determine volume-weighted average concentrations.

Process_Date: unknown

Process_Time: unknown

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Georgia Murray

Contact_Organization: University of Washington

Contact_Position: Research Scientist

Contact_Address:

Address_Type: Mailing and Physical Address

Address: University of Washington

Address: PO Box 352100

City: Seattle

State_or_Province: WA

Postal_Code: 98195

Country: USA

Contact_Voice_Telephone: (206) 543-8242

Contact_Electronic_Mail_Address: gmurray@u.washington.edu

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Georgia Murray

Contact_Organization: University of Washington

Contact_Position: Research Scientist

Contact_Address:

Address_Type: Mailing and Physical Address

Address: University of Washington

Address: PO Box 352100

City: Seattle

State_or_Province: WA

Postal_Code: 98195

Country: USA

Contact_Voice_Telephone: (206) 543-8242

Contact_Electronic_Mail_Address: gmurray@u.washington.edu

Resource_Description: Excel file

Metadata_Reference_Information:

Metadata_Date: 19980929

Metadata_Review_Date: 19990329

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Olympic Natural Resources Center

Contact_Position: GIS Specialist

Contact_Address:

Address_Type: mailing address

Address: PO Box 1628

City: Forks

State_or_Province: WA

Postal_Code: 98331

Country: USA

Contact_Voice_Telephone: 360.374.3220 x258

Contact_Facsimile_Telephone: 360.374.3336

Contact_Electronic_Mail_Address: onrc@u.washington.edu

Hours_of_Service: M-F 8-5

Contact_Instructions: Email preferred

Metadata_Standard_Name:

Content Standards for National Biological Information Infrastructure Metadata

Metadata_Standard_Version:

NBII Draft of December 1995, Based FGDC of June 8, 1994

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None

Metadata_Security_Information:

Metadata_Security_Classification_System: None

Metadata_Security_Classification: Unclassified

Metadata_Security_Handling_Description: None