uid=KBS,o=lter,dc=ecoinformatics,dc=orgalluid=sbohm,o=lter,dc=ecoinformatics,dc=orgallpublicreadhttps://lter.kbs.msu.edu/datasets/70.emlKatherineGrossMichigan State University

3700 East Gull Lake DriveHickory CornersMI49060US

(269) 671-2235(269)671-2351grossk@kbs.msu.eduG.RobertsonMichigan State University

3700 East Gull Lake DriveHickory CornersMI49060US

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

3700 East Gull Lake DriveHickory CornersMI49060US

(269) 671-2339(269) 671-2333vanderws@msu.eduprincipal contact2026-04-12

original data source http://lter.kbs.msu.edu/datasets/70

LTERKBSKellogg Biological StationHickory CornersMichiganGreat LakesmoisturesoilInorganic NutrientsDisturbanceLTER Core Research Areamoisture soilfarmingbiotahttps://apps.usgs.gov/thesaurus/thesaurus-full.php?thcode=15Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director.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-85.404699-85.36685742.42026542.3910192001-11-142020-12-31Kellogg Biological StationData Managerlter.data.manager@kbs.msu.eduhttp://lter.kbs.msu.edu02vkce854KBS LTERSoil bulk density is a measurement of the dry mass of soil per unit soil volume (g/cm3) and thus includes the combined volume of solids and pores that may contain gases or water, or both. Bulk density can affect many soil processes, such as water passage, heat transfer, aeration and root growth. It is also a necessary factor to convert mass-based units to area-based units. This protocol describes bulk density analyses associated with deep (1 m) soil cores sampled at approximate 5-10 year intervals to examine changes in soil carbon with depth. Cores are delineated into soil sections and bulk density is determined either by depth interval or by soil horizon (MCSE in 2008). For each core section or interval, dried subsamples are also pulverized and sampled for carbon and nitrogen analysis, and the remainder or a portion thereof is archived. Sampling frequency: Usually every 5-10 years Data Managerhttp://lter.kbs.msu.edu/protocols/110The amount of water or moisture in a given mass of soil is highly variable and is important to measure in field studies because it affects microbial activity, nutrient movement, and plant growth. To measure soil moisture content by the gravimetric method, a subsample of a fresh, sieved composite sample or a fresh soil core is weighed, oven dried until there is no further mass loss, and then reweighed. The moisture content is expressed as mass of water per mass of dry soil. Sampling frequency: Depends on experiment and research objective. Soil moisture is routinely measured as part of our LTER core soil sampling for inorganic N, N mineralization, and greenhouse gas fluxes.Data Managerhttp://lter.kbs.msu.edu/protocols/24Sample collection and processing protocol for the LTER Biodiversity Gradient Experiment plots.Data Managerhttp://lter.kbs.msu.edu/protocols/43programNational Science Foundationhttp://dx.doi.org/10.13039/100000001DEB 2224712https%3A%2F%2Fnsf.gov%2Fawardsearch%2FshowAward%3FAWD_ID%3D2224712%26HistoricalAwards%3Dfalsehttps://lter.kbs.msu.edu/datatables/674Kellogg Biological Station LTER: Soil Bulk Density of Deep Cores (KBS044-003)Soil bulk density of deep cores (to ~ 1m) taken in treatments B2, B5, B8, B11, B15, B18 and B21 of the LTER Biodiversity Gradient Experiment in the fall 2020 after its retirement in 2019 and during the following planting to sorghum. Two cores were taken per replicate plot (one in the sorghum row, the other between rows) and sectioned into 4 depth intervals.Soil+Bulk+Density+of+Dep+Cores.csvNone321\ncolumn,no"\https://lter.kbs.msu.edu/datatables/674.csvsample_datesample of soil samplingYYYY-MM-DD11987-4-18locationsampling locationsampling locationdescriptionpre-2020 crop historypre-2020 crop historyactual_top_depthactual top depth of samplingcentimeterrealactual_bottom_depthactual bottom depth of soil samplingcentimeterrealsoil_volumesoil volume of sampling cubicCentimeterrealrocks_weightweight of rocks greater than 4 mmgramrealhttps://lter.kbs.msu.edu/datatables/76Kellogg Biological Station LTER: Soil Moisture (Gravimetric) (KBS065-001)Gravimetric soil moisture measured in the fall 2001.Soil+Moisture+(Gravimetric).csvNone251\ncolumn,no"\https://lter.kbs.msu.edu/datatables/76.csvDatedate of the observationYYYY-MM-DD11987-4-18Plotplot IDplot IDTreatmenttreatment IDtreatment IDMoisturesoil moisture (dry weight basis)gramsPerGram0.01realDescriptiontreatment descriptiontreatment descriptionSystemtreatment system idtreatment system idhttps://lter.kbs.msu.edu/datatables/792Kellogg Biological Station LTER: Soil Archive (kbs065-002)Archived Soil samples from the Biodiversity gradient experiment.Soil+Archive.csvNone251\ncolumn,no"\https://lter.kbs.msu.edu/datatables/792.csvyearsample yearsample yearsitesample sitesample sitedateapproixmate sample dateYYYY-MM-DD11987-4-18depthsample depthsample depthplotplotplotcommentscomments about the samplecomments about the sample