uid=KBS,o=lter,dc=ecoinformatics,dc=orgalluid=sbohm,o=lter,dc=ecoinformatics,dc=orgallpublicreadhttps://lter.kbs.msu.edu/datasets/251.emlG.RobertsonMichigan State University

3700 East Gull Lake DriveHickory CornersMI49060US

(269) 760-8364(269)671-2351robert30@msu.edu0000-0001-9771-9895BrookWilkeMichigan State University

Hickory CornersMichigan49060US

(269) 671-2242wilkebro@msu.edu0000-0001-6746-5206principal contact2026-08-09

A dataset contains LTAR lysimeter data original data source http://lter.kbs.msu.edu/datasets/251

LTERKBSKellogg Biological StationHickory CornersMichiganGreat LakeswaternitrateammoniumInorganic NutrientsLTER Core Research Areafarmingbiotahttps://apps.usgs.gov/thesaurus/thesaurus-full.php?thcode=15Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director. These restrictions are intended mainly to preserve the primary investigators' rights to first publication and to ensure that data users are aware of the limitations that may be associated with any specific data set. These restrictions apply to both the baseline data set and to the data sets associated with specific LTER-supported subprojects.All publications of KBS data and images must acknowledge KBS LTER support.The areas around the Kellogg Biological Station in southwest Michigan-85.404699-85.36685742.42026542.3910192024-05-092025-12-10Kellogg Biological StationData Managerlter.data.manager@kbs.msu.eduhttp://lter.kbs.msu.edu02vkce854KBS LTERThe collection and analysis of soil solution (leachate) provides information on nutrient availability and hydrologic loss (leaching) from a given system. To collect soil solution in situ, low-tension quartz suction lysimeters (also called soil water samplers) are installed at ~1.2m depth, which at KBS is below most roots and in the Bt2 horizon of unconsolidated sand and gravel. The lysimeters are connected to the surface via a small diameter tube, to which suction (-0.5 atm) is applied. Over a 24h period enough soil water is pulled through the tube to measure nitrate and other solutes. Leachate samples are then filtered with glass fiber filters (pore size < 0.4 um) and frozen until analyzed. Sampling frequency: Depends on experiment, time of year, and research purpose. Soil leachate is collected as part of our sampling program of the LTER Main Cropping System Experiment on a biweekly basis throughout the growing season or as allowed by precipitation and soil frost.Data Managerhttp://lter.kbs.msu.edu/protocols/41Instructions for installing quartz suction lysimeters at the KBS LTER site. Lysimeters are installed semi-permanently in the C horizon, with enclosures installed at the surface to protect access tubing. Locations are chosen near treatment alleyways for convenient access and maintenance.Data Managerhttp://lter.kbs.msu.edu/protocols/42programhttps://lter.kbs.msu.edu/datatables/830Kellogg Biological Station LTER: LTAR lysimeter data (LTAR009-001)LTAR lysimeter data. Nitrate and Ammonium concentrations, and water volumes collected from 3 soil water samplers in each plot. LTAR+lysimeter+data.csvNone281\ncolumn,no"\https://lter.kbs.msu.edu/datatables/830.csvcampaignthe sampling campaignthe sampling campaignsample_datethe date the sample was removed from the fieldYYYY-MM-DD11987-4-18treatmentthe experimental treatmentthe experimental treatmentreplicatethe field replicate plotthe field replicate plotstationthe station or lysimeter within the plot. There are 3 stations clustered together in each plotthe station or lysimeter within the plot. There are 3 stations clustered together in each plotno3_ppmthe NO3-N concentrationmilligramsPerLiterrealnh4_ppmthe NH4-N concentrationmilligramsPerLiterrealestimated_volume_mlThe estimated volume of water collected in the soil water sampler. If less than 20 ml were collected no analysis was done.milliliterrealcommenta comment about the observationa comment about the observation