uid=KBS,o=lter,dc=ecoinformatics,dc=orgalluid=sbohm,o=lter,dc=ecoinformatics,dc=orgallpublicreadhttps://lter.kbs.msu.edu/datasets/131.emlMarginal Land Experiment at the Kellogg Biological Station, Hickory Corners, MI (2012 to 2021)G.RobertsonMichigan State University3700 East Gull Lake DriveHickory CornersMI49060US(269) 760-8364(269)671-2351robert30@msu.edu0000-0001-9771-9895KurtThelenMichigan State UniversityUS(517) 355-0271 x1232thelenk3@msu.edu0000-0003-3464-0826GreggSanfordUniversity of WisconsinMadisonWisconsin53706USgregg.r.sanford@gmail.com0000-0001-5019-9095GreggSanfordUniversity of WisconsinMadisonWisconsin53706USgregg.r.sanford@gmail.com0000-0001-5019-9095principal contactChaseKasmerchakMichigan State UniversityUSkasmerch@msu.eduprincipal contact2026-03-13Dataset Abstractoriginal data source http://lter.kbs.msu.edu/datasets/131LTERKBSKellogg Biological StationHickory CornersMichiganGreat LakesyieldPrimary ProductionInorganic 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Areafarmingbiotahttps://apps.usgs.gov/thesaurus/thesaurus-full.php?thcode=15Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director.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-85.404699-85.36685742.42026542.3910192012-01-012021-01-01Kellogg Biological StationData Managerlter.data.manager@kbs.msu.eduhttp://lter.kbs.msu.edu02vkce854KBS LTERThe GLBRC Marginal Land Experiment (MLE) was established in 2013 at north, central and south sites in Wisconsin and Michigan to evaluate the potential use of low productivity fields for low-input bioenergy biomass production. Six potential biofuel cropping systems (a.k.a. treatments; G5-G10 including switchgrass, miscanthus, native grasses, poplar, early successional, and restored prairie, respectively) from the GLBRC Biofuel Cropping Systems Experiment (BCSE) plus an historical vegetation control (G11) are replicated in each of 4 blocks (R1-R4). Split plot treatments were initiated in 2014-2016 to examine the effect of nitrogen fertilization [plus_n (+N) vs control (0N)] on all cropping systems. For more Information on site details, plot layout, and cropping systems see Marginal Land Experiment. For a taxonomic description of soils from each site, see Kasmerchak and Schaetzl (2018).
Both surface and deep-core soil samples are taken and may be analyzed for bulk density, total carbon and nitrogen, inorganic nitrogen, and for agronomic analysis and fertilizer/liming recommendations. Canopy species composition, annual net primary production (ANPP), and dry matter yields are measured in each of the cropping systems. Different methods are needed for ANPP and/or yield measurements of the poplar (G8) and historical vegetation (G11) treatments. Search for GLBRC Marginal land sites under Areas in the ag log for more specifics on sampling/harvesting equipment and procedures.
Each site has a weather station that records 5-minute observations of on-site conditions. Water profilers are installed in three replicates of each of the switchgrass (G5), poplar (G8) and restored prairie (G10) treatments; measurements are recorded at 0, 30 and 60 cm depths.
In 2018, a rainfall exclusion experiment was established in the fertilized split plot of the switchgrass (G5) treatment to examine the effects of drought on switchgrass For more information, see the Marginal Land Rainfall Exclusion Experiment protocol.
Note that Block 1 at the Wisconsin Central – Hancock site was retired in 2015. Also, the entire Wisconsin South – Oregon site was retired after the 2018 growing season due to high soil fertility and the maintenance, sampling, harvest and analysis of the remaining Wisconsin sites was transferred from UW staff to MSU staff.GLBRC Marginal Land Experiment – SamplingData Managerhttp://glbrc.kbs.msu.edu/protocols/181https://lter.kbs.msu.edu/datatables/466Kellogg Biological Station LTER: Dry Matter Yield (KBS105-002)Agronomic yields from machine harvest of the Marginal Land Experiment at sites in Michigan and Wisconsin. Yield data is given for 6 treatments (switchgrass, miscanthus, native grasses, early succession, restored prairie and historical vegetation) on the 6 Marginal Land Experiment sites (Wisconsin South – Oregon site was retired after 2018 growing season). Note that the historical vegetation (G11) treatment is not machine harvested; agronomic yield is estimated by hand harvesting. Yield data are given as dry matter expressed as Mg/ha.
G11 was hand harvested at 3 stations per split plot from 2015-2017 and at 2 stations per split plot beginning in 2018. The average harvest per split plot is given here. Raw data is available on request.
The corresponding glbrc table is https://data.sustainability.glbrc.org/datatables/465Dry+Mater+Yield.csvNone311\ncolumn,no"\https://lter.kbs.msu.edu/datatables/466.csvyearyear of the growing seasonYYYY-MM-DD11987-4-18harvest_datedate of harvestYYYY-MM-DD11987-4-18siteexperiment locationexperiment locationtreatmentexperimental treatmentexperimental treatmentreplicatereplicate nested within treatmentreplicate nested within treatmentcropcropcropfield_sectionsection of the field harvestedsection of the field harvestedn_treatmentnitrogen experimental treatmentnitrogen experimental treatmentarea_harvested_ft2area harvestedsquareFootrealdry_matter_yield_mg_hayield as dry mattermegagramsPerHectarerealmoisture_at_harvestpercent moisture measured at harvestgramsPerHectogramrealcommentsspecific notes for a given rowspecific notes for a given rowhttps://lter.kbs.msu.edu/datatables/447Kellogg Biological Station LTER: Soil Chemistry from Deep and Surface Soil Cores- Marginal Sites (KBS105-003)Deep core soil samples and surface samples are taken occasionally for fertilizer recommendations and analyzed for pH, lime index, phosphorus, potassium, calcium, magnesium, cation exchange capacity and organic matter.
KBS samples are analyzed by the Michigan State University Soil and Plant Nutrient Laboratory.Soil+Chemistry+from+Dep+and+Surface+Soil+Cores-+Marginal+Sites.csvNone381\ncolumn,no"\https://lter.kbs.msu.edu/datatables/447.csvyearyear soil sample was collectedintegersample_datedate of soil coringYYYY-MM-DD11987-4-18siteMichigan sampling siteMichigan sampling sitetreatmentexperimental treatmentexperimental treatmentreplicatereplicate nested within treatmentreplicate nested within treatmentcampaignsampling intentsampling intenttop_depth_cmupper soil sampling depthcentimeterintegerbottom_depth_cmlower soil sampling depthcentimeterintegerphpH of soil solutiondimensionlessreallime_indexindicator of potential acidityintegerp_ppmphosphorus in soilmilligramsPerKilogramrealk_ppmpotassium in soilmilligramsPerKilogramrealca_ppmcalcium in soilmilligramsPerKilogramrealmg_ppmmagnesium in soilmilligramsPerKilogramrealfield_sectionsection of the field sampledsection of the field sampledn_treatmentnitrogen treatment of given split plotnitrogen treatment of given split plotest_cecCation exchange capacity in meq/100g soilmilliEquivalentsPerHundredGramrealom_percentorganic matter percentgramsPerHectogramrealcommentsnotesnoteshttps://lter.kbs.msu.edu/datatables/468Kellogg Biological Station LTER: Agronomic Log (KBS105-004)Records of agronomic activities carried out on the GLBRC Marginal Land sites in Michigan.Agronomic+Log.csvNone281\ncolumn,no"\https://lter.kbs.msu.edu/datatables/468.csvobs_datedate the activity occurredYYYY-MM-DD11987-4-18observation_typetype of activity performedtype of activity performedcommentaglog entryaglog entrynamestate, site (northern, central or southern), treatment, replicatestate, site (northern, central or southern), treatment, replicatematerialmaterial appliedmaterial appliedraterate the material is applied atrealunitsrate unitrate unitequipmentequipmentequipmentobservation_idobservation id. This can be used to retrieve the original observation at http://aglog.kbs.msu.edu/observations/realhttps://lter.kbs.msu.edu/datatables/500Kellogg Biological Station LTER: Switchgrass Varieties Planted on the GLBRC Marginal Land Experiment (KBS105-006)Switchgrass varieties planted on the GLBRC Marginal Land Experiment by treatment. Panicum virgatum var. Cave-in-Rock is a non-native variety and Panicum virgatum var. Southlow is a native variety. Switchgrass varieties planted on all GLBRC experiments can be found at: http://lter.kbs.msu.edu/datatables/494Switchgras+Varieties+Planted+on+the+GLBRC+Marginal+Land+Experiment.csvNone261\ncolumn,no"\https://lter.kbs.msu.edu/datatables/500.csvyearyear of plantingYYYY11987-4-18siteexperiment locationexperiment locationexperimentGLBRC experimentGLBRC experimenttreatmentexperimental treatmentexperimental treatmentspeciesswitchgrass species including the varietyswitchgrass species including the varietysourceWhere the seed was purchased from.Where the seed was purchased from.commentscommentscommentshttps://lter.kbs.msu.edu/datatables/587Kellogg Biological Station LTER: MLE soil characterization (pit samples) (KBS105-009)Soil chemistry at sites of GLBRC marginal land experiment.MLE+soil+characterization+(pit+samples).csvNone441\ncolumn,no"\https://lter.kbs.msu.edu/datatables/587.csvyearsampling yearsampling yearsampling datesampling dateYYYY-MM-DD11987-4-18siteGLBRC MLE siteGLBRC MLE site top depth cmtop depth of soil samplingcentimeterrealbottom depth cmbottom depth of soil samplingcentimeterrealpHpH value of soil sample (1:1 soil:water)dimensionlessrealp_ppmphosphorus (Bray P1 extraction)microgramsPerLiterrealk_ppmpotassiummicrogramsPerLiterrealca_ppmcalciummicrogramsPerLiterrealmg_ppmmagnesiummicrogramsPerLiterrealna_ppmsodiummicrogramsPerLiterrealcecestimated cation exchange capacity (cmol/kg)centimolePerKilogramrealbase_saturationbase saturation (percent)base saturation (percent)bulk densitybulk density (g/cm^3)gramsPerCubicCentimeterrealestimated porositypercent porositycubicCentimetersPerCubicCentimetersrealminimal porositypercent porositycubicCentimetersPerCubicCentimetersrealsandpercent sandgramsPerHectogramrealsiltpercent siltgramsPerHectogramrealclaypercent claygramsPerHectogramrealtexturecategory of soil texturecategory of soil texture@article{citation_4214,
author = {Kyungjin Min and Erin Nuccio and Eric Slessarev and Megan Kan and Karis J McFarlane and Erik Oerter and Anna Jurusik and Gregg Sanford and Kurt D Thelen and Jennifer Pett-Ridge and Asmeret Asefaw Berhe},
title = {Deep-rooted perennials alter microbial respiration and chemical composition of carbon in density fractions along soil depth profiles},
year = {2025},
journal = {Geoderma},
pages = {117202},
volume = {455},
doi = {10.1016/j.geoderma.2025.117202}
}