uid=KBS,o=lter,dc=ecoinformatics,dc=orgalluid=sbohm,o=lter,dc=ecoinformatics,dc=orgallpublicreadhttps://lter.kbs.msu.edu/datasets/6.emlG.RobertsonMichigan State University

3700 East Gull Lake DriveHickory CornersMI49060US

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

Fort CollinsCO80523

(970) 491-2504(970)491-3945diana@nrel.colostate.eduKatherineGrossMichigan State University

3700 East Gull Lake DriveHickory CornersMI49060US

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

East LansingMichigan48824

(517) 355-0271 x1233renner@msu.eduNicholasHaddadMichigan State University

3700 E Gull Lake DriveHickory Corners49060US

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

East LansingMI48824

(517) 355-0271 x1134(517)353-5174crum@msu.eduoriginal investigatorBoydEllisMichigan State University

East LansingMI48824USA

ellis@msu.eduoriginal investigatorKathrineKlingensmithKeuka College

Keuka ParkNY14478USA

(315) 536-5379original investigatorEldorPaulColorado State University

Fort CollinsCO80523US

eldor@nrel.colostate.eduoriginal investigatorMichaelKlugMichigan State University

Hickory CornersMI49060US

klug@kbs.msu.eduoriginal investigatorStaceyVanderWulpMichigan State University

3700 East Gull Lake DriveHickory CornersMI49060US

(269) 671-2339(269) 671-2333vanderws@msu.eduprincipal contact2026-06-12

original data source http://lter.kbs.msu.edu/datasets/6

LTERKBSKellogg Biological StationHickory CornersMichiganGreat LakessoilphysicalpropertiesbulkdensitygisgeoreferencedspatialsandsiltclayInorganic NutrientsDisturbanceOrganic MatterPopulationsPrimary ProductionLTER Core Research AreaNO3 NH4 microbial biomass mineralization seed bank elevation biomass bulk density pH fungi nematodes plant phenology soil horizons topography insects soil chemistry carbonfarmingbiotahttps://apps.usgs.gov/thesaurus/thesaurus-full.php?thcode=15Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director.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-85.404699-85.36685742.42026542.3910191988-01-011988-01-01Kellogg Biological StationData Managerlter.data.manager@kbs.msu.eduhttp://lter.kbs.msu.edu02vkce854KBS LTERprogramNational 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/14Kellogg Biological Station LTER: Soil Bulk Density and Texture of MCSE Baseline Study (KBS003-001)Soil bulk density and texture (percentage sand, silt and clay) of surface soils (0-15 cm) sampled in 1988 at an array of spatially referenced points across the LTER Main Site prior to the establishment of the MCSE. The designated MCSE treatment plot that includes the referenced point is also given.Soil+Bulk+Density+and+Texture+of+MCSE+Baseline+Study.csvNone291\ncolumn,no"\https://lter.kbs.msu.edu/datatables/14.csvyearyear of the observationYYYY11987-4-18eastingeasting of sampling location in UTM 16Nmeterrealnorthingnorthing of the sampling location in UTM 16Nmeterrealbulk_density_gravelbulk density of gravel in mg/cm3gramsPerCubicCentimeterrealbulk_density_soilbulk density of soil in mg/cm3gramsPerCubicCentimeterrealsandpercent sandgramsPerHectogramrealsiltpercent siltgramsPerHectogramrealclaypercent claygramsPerHectogramrealplotthe current plot the current plot https://lter.kbs.msu.edu/datatables/15Kellogg Biological Station LTER: Soil Total Carbon and Nitrogen of MCSE Baseline Study (KBS003-002)Total carbon and nitrogen content, plus soil moisture and pH, of surface soils (0-15 cm) sampled in 1988 at an array of geo-referenced points across the LTER Main Site prior to establishment of the MCSE. The designated MCSE treatment plot that includes the referenced point is also given.Soil+Total+Carbon+and+Nitrogen+of+MCSE+Baseline+Study.csvNone331\ncolumn,no"\https://lter.kbs.msu.edu/datatables/15.csvyearyear of the observationYYYY11987-4-18eastingeasting of sampling location in UTM 16Nmeterrealnorthingnorthing of sampling location in UTM 16Nmeterrealh2o_fwsoil moisture (fresh weight basis) in %gramsPerHectogramrealpHsoil pHdimensionlessrealhplussoil H+ activity in 10E+6 H+dimensionlessrealtotal_ctotal C in %gramsPerHectogramrealtotal_ntotal N in %gramsPerHectogramrealsoil_cnC:N ratiodimensionlessrealh2o_dwsoil moisture (dry weight basis) in %gramsPerHectogramrealh2o_m2soil moisture (dry weight, areal basis) in kg/m2kilogramsPerSquareMeterrealtotal_c_m2total C (areal basis) in kg/m2kilogramsPerSquareMeterrealtotal_n_m2total N (areal basis) in kg/m2kilogramsPerSquareMeterrealplotthe current plotthe current plothttps://lter.kbs.msu.edu/datatables/138Kellogg Biological Station LTER: Elevation of MCSE Baseline Study (KBS003-003)Elevation in 1988 at an array of geo-referenced points across the LTER Main Site prior to establishment of the MCSE.Elevation+of+MCSE+Baseline+Study.csvNone231\ncolumn,no"\https://lter.kbs.msu.edu/datatables/138.csvyearthe year the observation was recordedthe year the observation was recordedeastingeasting of the sample location in UTM 16Nmeterrealnorthingnorthing of the sample location in UTM 16Nmeterrealz_meterelevation above mean sea levelmeterrealhttps://lter.kbs.msu.edu/datatables/139Kellogg Biological Station LTER: Soil Microbial Biomass and Respiration of MCSE Baseline Study (KBS003-004)Biomass C, respiration and population counts of soil microbial communities in surface soils (0-15 cm) sampled in 1988 at an array of geo-referenced points across the LTER Main Site prior to establishment of the MCSE.Soil+Microbial+Biomas+and+Respiration+of+MCSE+Baseline+Study.csvNone281\ncolumn,no"\https://lter.kbs.msu.edu/datatables/139.csvyearyear that the observation was madeYYYY11987-4-18eastingeasting of the sample location in UTM 16Nmeterrealnorthingnorthing of the sample location in UTM 16Nmeterrealorganisms_gnumber of microbes per gram of soilnumberPerGramintegermicrobial_respirationmicrobial respiration in ng C/gram/daynanogramsPerGramPerDayrealmicrobial_biomassmicrobial biomass in ug C/g soilmicrogramsPerGramrealorganisms_m2number of microbes on areal basis in number per square meternumberPerMeterSquaredrealmicrobial_respiration_m2microbial respiration on areal basis in mg C per square meter per daymilligramsPerSquareMeterPerDayrealmicrobial_biomass_m2microbial biomass on areal basis in mg C per square metermilligramsPerSquareMeterrealhttps://lter.kbs.msu.edu/datatables/140Kellogg Biological Station LTER: Nematode Density of MCSE Baseline Study (KBS003-005)Population counts, by feeding group, of nematodes in surface soils (0-15 cm) sampled in 1988 at an array of geo-referenced points across the LTER Main Site prior to establishment of the MCSE. These data are summarized in the following publication: Robertson, G. P. and D. W. Freckman. 1995. The spatial distribution of nematode trophic groups across a cultivated ecosystem. Ecology 76:1425-1432. https://doi.org/10.2307/1938145Nematode+Density+of+MCSE+Baseline+Study.csvNone271\ncolumn,no"\https://lter.kbs.msu.edu/datatables/140.csvyearyear of the observationYYYY11987-4-18eastingeasting of the sample location in UTM 16Nmeterrealnorthingnorthing of the sample location in UTM 16Nmeterrealfungivorus_nematodes_m2number of fungivorus nematodes per square meternumberPerMeterSquaredrealbacteriovorus_nematodes_m2number of bacteriovorus nematodes per square meter numberPerMeterSquaredrealomnivorus_predacious_nematodes_m2number of omnivorous/predaceous nematodes per square meternumberPerMeterSquaredrealplant_parasitic_nematodes_m2number of plant parasitic nematodes per square meternumberPerMeterSquaredrealtotal_nematodes_m2number of total nematodes per square meternumberPerMeterSquaredrealhttps://lter.kbs.msu.edu/datatables/141Kellogg Biological Station LTER: Soybean Biomass and Total Carbon and Nitrogen of MCSE Baseline Study (KBS003-006)Biomass and total carbon and nitrogen content of whole, aboveground soybean plants at harvest in 1988 at an array of geo-referenced points across the LTER Main Site prior to establishment of the MCSE.Soybean+Biomas+and+Total+Carbon+and+Nitrogen+of+MCSE+Baseline+Study.csvNone281\ncolumn,no"\https://lter.kbs.msu.edu/datatables/141.csvyearyear of the observationYYYY11987-4-18eastingeasting of the sample location in UTM 16Nmeterrealnorthingnorthing of sample location in UTM 16Nmeterrealsoynsoybean whole-plant N content at maturity in %NgramsPerHectogramrealsoycsoybean whole-plant C content at maturity in %CgramsPerHectogramrealsoycnsoybean whole-plant C:N ratiodimensionlessrealsoy_gmsoybean whole-plant biomass at maturity (areal basis) in g/m2gramsPerSquareMeterrealsoy_gpsoybean whole-plant biomass at maturity (per plant basis) in g/ plantgramrealsoy_n_gmsoybean whole-plant N content at maturity (areal basis) in g N/m2gramsPerYearrealhttps://lter.kbs.msu.edu/datatables/142Kellogg Biological Station LTER: Nitrogen Mineralization of MCSE Baseline Study (KBS003-007)Nitrate (NO3-) and mineral nitrogen (NO3- + ammonium (NH4+)) and nitrification and minearlization potentials of surface soils (0-15 cm) collected in 1988 at an array of geo-referenced points across the LTER Main Site prior to the establishment of the MCSE.Nitrogen+Mineralization+of+MCSE+Baseline+Study.csvNone301\ncolumn,no"\https://lter.kbs.msu.edu/datatables/142.csvyearyear of the observationYYYY11987-4-18eastingeasting of the sample location in UTM 16Nmeterrealnorthingnorthing of the sample location in UTM 16Nmeterrealino3nitrate-N pool in ug N/g soilmicrogramsPerGramrealpno3net nitrification potential in ug N/g soil/dmicrogramsPerGramPerDayrealiminmineral-N pool (NH4-N + NO3-N) in ug N/g soilmicrogramsPerGramrealpminnet N mineralization potential in ug N/g soil/dmicrogramsPerGramPerDayrealino3_m2nitrate-N pool (areal basis) in g N/m2gramsPerSquareMeterrealpno3_m2net nitrification potential (areal basis) in g N/m2/dgramsPerSquareMeterPerDayrealimin_m2mineral-N pool (NH4 + NO3 ) (areal basis) in g N/m2gramsPerSquareMeterrealpmin_m2net mineralization potential (areal basis) in g N/m2/dgramsPerSquareMeterPerDayrealhttps://lter.kbs.msu.edu/datatables/137Kellogg Biological Station LTER: Seed Bank of MCSE Baseline Study (KBS003-008)Seedbank analysis of surface soils sampled in 1988 at an array of geo-referenced points across the LTER Main Site prior to establishment of the MCSE.Sed+Bank+of+MCSE+Baseline+Study.csvNone261\ncolumn,no"\https://lter.kbs.msu.edu/datatables/137.csvyearyear of the observationYYYY11987-4-18eastingeasting of the sample location in UTM 16Nmeterrealnorthingnorthing of the sample location in UTM 16Nmeterrealspeciesspecies namespecies namedepthsoil sample depth in cmsoil sample depth in cmseedlingsnumber of seedlings per samplenumber of seedlings per samplecommenta comment about this sample pointa comment about this sample pointhttps://lter.kbs.msu.edu/datatables/266Kellogg Biological Station LTER: Plot Polygons (KBS003-009)Spatial coordinates of the 1-ha treatment plots of the Main Cropping System Experiment (MCSE) at the LTER Main Site and the unmanaged successional sites. Plot ids are given as MCSE treatment number (T1-T8, SF, CF, DF) and replicate number (R1-R6).Plot+Polygons.csvNone211\ncolumn,no"\https://lter.kbs.msu.edu/datatables/266.csvPlotidThe plot name (treatment and replicate)The plot name (treatment and replicate)wktThe polygon as well known textThe polygon as well known text@article{citation_2807, author = {G P Robertson and K M Klingensmith and M J Klug and E A Paul and J R Crum and B G Ellis}, title = {Soil resources, microbial activity, and primary production across an agricultural ecosystem}, year = {1997}, journal = {Ecological Applications}, pages = {158-170}, volume = {7}, doi = {10.1890/1051-0761(1997)007[0158:SRMAAP]2.0.CO;2} } @article{citation_2807, author = {G P Robertson and K M Klingensmith and M J Klug and E A Paul and J R Crum and B G Ellis}, title = {Soil resources, microbial activity, and primary production across an agricultural ecosystem}, year = {1997}, journal = {Ecological Applications}, pages = {158-170}, volume = {7}, doi = {10.1890/1051-0761(1997)007[0158:SRMAAP]2.0.CO;2} } @article{citation_4208, author = {S Carolina Cordova and Alexandra N Kravchenko and Jessica R Miesel and G Philip Robertson}, title = {Soil carbon change in intensive agriculture after 25 years of conservation management}, year = {2025}, journal = {Geoderma}, pages = {117133}, volume = {453}, doi = {10.1016/j.geoderma.2024.117133} } @data{citation_4230, author = {S Carolina Cordova and Alexandra N Kravchenko and Jessica R Miesel and G Philip Robertson}, title = {Data from: Soil carbon change in intensive agriculture after 25 years of conservation management [Dataset]}, publisher = {Dryad}, year = {2025}, doi = {10.5061/dryad.1rn8pk0x1} } @article{citation_2807, author = {G P Robertson and K M Klingensmith and M J Klug and E A Paul and J R Crum and B G Ellis}, title = {Soil resources, microbial activity, and primary production across an agricultural ecosystem}, year = {1997}, journal = {Ecological Applications}, pages = {158-170}, volume = {7}, doi = {10.1890/1051-0761(1997)007[0158:SRMAAP]2.0.CO;2} } @article{citation_2807, author = {G P Robertson and K M Klingensmith and M J Klug and E A Paul and J R Crum and B G Ellis}, title = {Soil resources, microbial activity, and primary production across an agricultural ecosystem}, year = {1997}, journal = {Ecological Applications}, pages = {158-170}, volume = {7}, doi = {10.1890/1051-0761(1997)007[0158:SRMAAP]2.0.CO;2} } @article{citation_2884, author = {G P Robertson and D W Freckman}, title = {The spatial distribution of nematode trophic groups across a cultivated ecosystem}, year = {1995}, journal = {Ecology}, pages = {1425-1432}, volume = {76}, doi = {10.2307/1938145} } @article{citation_2807, author = {G P Robertson and K M Klingensmith and M J Klug and E A Paul and J R Crum and B G Ellis}, title = {Soil resources, microbial activity, and primary production across an agricultural ecosystem}, year = {1997}, journal = {Ecological Applications}, pages = {158-170}, volume = {7}, doi = {10.1890/1051-0761(1997)007[0158:SRMAAP]2.0.CO;2} } @article{citation_2807, author = {G P Robertson and K M Klingensmith and M J Klug and E A Paul and J R Crum and B G Ellis}, title = {Soil resources, microbial activity, and primary production across an agricultural ecosystem}, year = {1997}, journal = {Ecological Applications}, pages = {158-170}, volume = {7}, doi = {10.1890/1051-0761(1997)007[0158:SRMAAP]2.0.CO;2} } @article{citation_2807, author = {G P Robertson and K M Klingensmith and M J Klug and E A Paul and J R Crum and B G Ellis}, title = {Soil resources, microbial activity, and primary production across an agricultural ecosystem}, year = {1997}, journal = {Ecological Applications}, pages = {158-170}, volume = {7}, doi = {10.1890/1051-0761(1997)007[0158:SRMAAP]2.0.CO;2} }