uid=KBS,o=lter,dc=ecoinformatics,dc=orgalluid=sbohm,o=lter,dc=ecoinformatics,dc=orgallpublicreadhttps://lter.kbs.msu.edu/datasets/248.emlNicholasHaddadMichigan State University

3700 E Gull Lake DriveHickory Corners49060US

haddad@kbs.msu.edu0000-0002-1591-9322StaceyVanderWulpMichigan State University

3700 East Gull Lake DriveHickory CornersMI49060US

(269) 671-2339(269) 671-2333vanderws@msu.eduprincipal contact2026-09-08

original data source http://lter.kbs.msu.edu/datasets/248

LTERKBSKellogg Biological StationHickory CornersMichiganGreat LakesDisturbancePrimary ProductionLTER 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Areafarmingbiotahttps://apps.usgs.gov/thesaurus/thesaurus-full.php?thcode=15Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director.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-85.404699-85.36685742.42026542.391019Kellogg Biological StationData Managerlter.data.manager@kbs.msu.eduhttp://lter.kbs.msu.edu02vkce854KBS LTERSampling Frequency: every three years Bulk density cores consist of intact cores taken in each plot.Data Managerhttp://lter.kbs.msu.edu/protocols/38Soil 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/110https://lter.kbs.msu.edu/datatables/809Kellogg Biological Station LTER: Soil bulk density for the GLBRC Switchgrass Biodiversity Experiment (GLBRC153-001)Deep soil cores (to 1 m) are collected and sectioned into 0-10, 10-25, 25-50, and 50-100 cm soil depth intervals, and each interval analyzed for bulk density.Soil+bulk+density+for+the+GLBRC+Switchgras+Biodiversity+Experiment.csvNone351\ncolumn,no"\https://data.sustainability.glbrc.org/datatables/809.csvtarget_compositiontarget switchgrass proportion (%)realsideplot splitplot splittop_depth_bdactual section top depthcentimeterintegerbottom_depth_bdactual section bottom depthcentimeterintegerhttps://lter.kbs.msu.edu/datatables/833Kellogg Biological Station LTER: Root biomass from the GLBRC Switchgrass Biodiversity Experiment (GLBRC153-002)Dry root biomass from GLBRC Switchgrass Biodiversity Experiment.Rot+biomas+from+the+GLBRC+Switchgras+Biodiversity+Experiment.csvNone331\ncolumn,no"\https://data.sustainability.glbrc.org/datatables/833.csvtop_depthnominal top depth of core sectioncentimeterintegerbottom_depthnominal bottom depth of core sectioncentimeterintegeractual_top_depthactual top depth of core sectioncentimeterintegeractual_bottom_depthactual bottom depth of core sectioncentimeterintegerdry_root_weightdry root weight in the core sectiongramreal