Transport of sediment-borne carbon with different tillage practices

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: L.B. Owens, R.W. Malone, G.C. Starr and R. Lal
Publication_Date: Unknown
Title: Transport of sediment-borne carbon with different tillage practices
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place: Coshocton, Ohio
Publisher: North Appalachian Experimental Watershed Research Unit, USDA-ARS
Other_Citation_Details:
Online_Linkage:
Description:
Abstract:
(adapted from project decription) Problems: Tillage practices impact the movement of sediment within and from watersheds. How do conservation tillage practices influence the movement of carbon attached to the sediments -- both loss and deposition within a watershed as well as the amount moved from a small watershed? Approach: In small watersheds instrumented with H-flumes and Coshocton wheels, flume floor sediments and sediment in runoff have been collected from several conservation tillage practices (no-till, chisel-plow, paraplow, disk) for 11 years. Samples of sediment deposited within watersheds following a runoff event have also been collected. Findings: Our work with carbon storage research is recent, and the results are still only preliminary. Although the weighted averages of total soil carbon may not be significantly different for the sediment from the different tillage treatments, carbon content of no-till sediments was greatest (2.8%) and chisel-plow was lowest (1.9%). Annual total carbon transport (the product of total sediment transport times the carbon content) was similar for these two practices; 11.9 and 12.1 kg/ha, respectively. Annual average carbon transport from the disk treatment was 17.1 kg/ha. Although tillage treatments may reduce carbon transport in sediment by lower content, a greater factor for reducing carbon movement is by reducing sediment transport. With soil samples from two conservation tillage watersheds (no-till and chisel-plow) following summer thunderstorms, characterization of soil deposited in rills and inter-rill areas and the sediment carried in runoff waters was contrasted with the near-surface topsoil. The two watersheds showed similar trends. Suspended sediments from large events had higher C and slightly lower C/N ratio than flume floor samples. The C/N ratios of soil samples (0-1 and 0-5 cm depth) and landscape deposits (averaging between 14 and 22) were higher than the C/N ratios of fiume deposits and runoff sediments (averaging 8 to 11 ). Future Plans: We have stored soil and sediment samples for nearly 12 years from conservation tillage watersheds. These will be analyzed for total C (some C fractionation will be done, if adequate resources are available). Carbon content changes overtime will be studied and contrasts with C content of sediments will be made to validate preliminary findings. The study of carbon content and transport on sediments within a watershed will be expanded to other watersheds and conservation tillage practices. Understanding transport mechanisms may lead to development of conceptional models for predicting C dynamics in agriculture.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Owens, L.B., R.W. Malone, G.C. Starr, and R. Lal. 1999. Carbon concentrations and transport in sediment leaving small tilled watersheds. Abstracts of the 1Oth International Soil Conservation Organization Conference.
Supplemental_Information:
REFERENCE: Starr, G.C., R. Lal, L. Owens, R. Malone, and J. Kimble. 1999. Conservation tillage effects on preferential transport of sediment-borne C and N from watersheds in Ohio. Abstracts of the 1Oth International Soil Conservation Organization Conference.
Supplemental_Information:
REFERENCE: Starr, G.C., R. Lal, L. Owens, R. Malone, and J. Kimble. 1998. Assessing carbon losses by erosion from soil and nutrient loss on a watershed scale. An International Workshop on Assessment Methods for Soil C Pools -- Abstract Volume. p. 34.
Supplemental_Information:
REFERENCE: Starr, G.C., R. Lal, R. Malone, L. Owens, and J. Kimble. 1998. Modeling soil carbon losses in erosion. An International Workshop on Assessment Methods for Soil C Pools - Abstract Volume. p. 35.
Status:
Progress: In Work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -82.0
East_Bounding_Coordinate: -80.0
North_Bounding_Coordinate: 41.0
South_Bounding_Coordinate: 39.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > AGRICULTURE > AGRICULTURAL PLANT SCIENCE > CROPPING SYSTEMS
Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > ORGANIC MATTER
Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL CHEMISTRY
Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL STRUCTURE
Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > DISCHARGE/FLOW
Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > RUNOFF
Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > ORGANIC MATTER
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > EROSION
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENT CHEMISTRY
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENT COMPOSITION
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENT TRANSPORT
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENTS
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > ORGANIC MATTER
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL CHEMISTRY
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL STRUCTURE
Theme_Keyword: GROUND-BASED OBSERVATIONS
Theme_Keyword: Carbon Loss In Erosion
Theme_Keyword: Carbon Pools
Theme_Keyword: Carbon Sequestration
Theme_Keyword: Carbon Sink
Theme_Keyword: Carbon Storage
Theme_Keyword: Carbon Transport
Theme_Keyword: Chisel-plow
Theme_Keyword: Conservation Tillage
Theme_Keyword: Disk
Theme_Keyword: H-flumes
Theme_Keyword: No-till
Theme_Keyword: Paraplow
Theme_Keyword: Runoff
Theme_Keyword: Sediment Carbon
Theme_Keyword: Watershed Sediment
Theme_Keyword: Conservation
Theme_Keyword: FARMING
Theme_Keyword: ENVIRONMENT
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: INLAND WATERS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OHIO
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: Collected On A Storm Event Basis
Access_Constraints: not available yet / not completed yet
Use_Constraints:
none
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: LLOYD B. OWENS
Contact_Position: INVESTIGATOR
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: North Appalachian Experimental Watershed Research Unit, USDA-ARS
Address: P.O. Box 488
City: Coshocton
State_or_Province: OH
Postal_Code: 43812
Country: USA
Contact_Voice_Telephone: 740-545-6349
Contact_Facsimile_Telephone: 740-545-5125
Contact_Electronic_Mail_Address: naew@coshocton.com
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
have not been peer reviewed/completed yet
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA/ARS/NAEWRU > North Appalachian Experimental Watershed Research Unit, Agricultural Research Service, U. S. Department of Agriculture
Contact_Person: LLOYD B. OWENS
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: North Appalachian Experimental Watershed Research Unit, USDA-ARS
Address: P.O. Box 488
City: Coshocton
State_or_Province: OH
Postal_Code: 43812
Country: USA
Contact_Voice_Telephone: 740-545-6349
Contact_Facsimile_Telephone: 740-545-5125
Contact_Electronic_Mail_Address: naew@coshocton.com
Resource_Description: USDA.ARS.NAEWRU.SedimentC
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.ars-grin.gov/ars/MidWest/Coshocton/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date:
Metadata_Review_Date: 20010626
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: TYLER B. STEVENS
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NASA Goddard Space Flight Center
Address: Global Change Master Directory
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA
Contact_Voice_Telephone: (301) 614-6898
Contact_Facsimile_Telephone: 301-614-5268
Contact_Electronic_Mail_Address: Tyler.B.Stevens@nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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