uid=KBS,o=lter,dc=ecoinformatics,dc=orgalluid=sbohm,o=lter,dc=ecoinformatics,dc=orgallpublicreadhttps://lter.kbs.msu.edu/datasets/60.emlKatherineGrossMichigan State University

3700 East Gull Lake DriveHickory CornersMI49060US

(269) 671-2235(269)671-2351grossk@kbs.msu.eduJenniferLauIndiana Univeristy Bloomington

US

jenlau@iu.edu0000-0002-8344-5421MarkHammondMichigan State University

3700 East Gull Lake DriveHickory CornersMI49060USA

(269) 671-2222mhammond@kbs.msu.eduprincipal contactCarolBakerMichigan State University

3700 East Gull Lake DriveHickory CornersMI49060

(269) 671-2222(269)671-2351cbaker@kbs.msu.eduprincipal contact2026-03-13

original data source http://lter.kbs.msu.edu/datasets/60

LTERKBSKellogg Biological StationHickory CornersMichiganGreat LakesbiomassfertilizationdisturbanceplantsT7Primary ProductionPopulationsInorganic NutrientsDisturbanceLTER Core Research Areaold fieldsuccessionplant communitiesplant communitysuccessional dynamicscommunity dynamicsfertilizationdisturbancediversitynitrogenbiomassfarmingbiotahttps://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in the KBS LTER core database may not be published without written permission of the lead investigator or project director.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-85.404699-85.36685742.42026542.3910191989-07-152022-09-21Kellogg Biological StationData Managerlter.data.manager@kbs.msu.eduhttp://lter.kbs.msu.edu02vkce854KBS LTERAbove ground net primary productivity (ANPP) in the LTER Trt7 (early successional community) microplots is measured by harvesting the current year’s above ground plant biomass. The harvest is timed to occur at peak biomass for the predominant species in the untilled and tilled fields. The harvested plant material is sorted to species, dried and weighed.Data Managerhttp://lter.kbs.msu.edu/protocols/143Data Managerhttp://lter.kbs.msu.edu/protocols/27programNational 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/154Kellogg Biological Station LTER: Early Successional Microplot Biomass (Sorted to species) (KBS055-001)Plant biomass measured in response to long-term nitrogen fertilization and disturbance. Biomass was sorted to species, The remaining biomass that was not identifiable was classified as un-sorted.Early+Sucesional+Microplot+Biomas+(Sorted+to+species).csvNone281\ncolumn,no"\https://lter.kbs.msu.edu/datatables/154.csvsample_datedate of samplingYYYY-MM-DD11987-4-18speciesspecies observedspecies observedtreatmentLTER treatment identifierLTER treatment identifierreplicatereplicatereplicatemethodthe sampling protocol used. "sorted to species" means that the samples were sorted to species and any remaining material is classified as unsorted. "not_sorted" means that no attempt was made to sort and the material is just classified as unsorted.the sampling protocol used. "sorted to species" means that the samples were sorted to species and any remaining material is classified as unsorted. "not_sorted" means that no attempt was made to sort and the material is just classified as unsorted.disturbedhas the plot been tilled annually (true or false)has the plot been tilled annually (true or false)fertilizedhas nitrogen fertilizer been applied to the plot (true or false)has nitrogen fertilizer been applied to the plot (true or false)biomass_g_m2dry biomass measured per square metergramsPerSquareMeterrealarea_sampledarea that was sampledsquareMeterrealhttps://lter.kbs.msu.edu/datatables/348Kellogg Biological Station LTER: Soil Inorganic Nitrogen - Early Successional Microplots (KBS055-002)Inorganic nitrogen concentrations of ammonia and nitrate in soils of the fertilization and disturbance microplots on the LTER Early Successional treatment (T7). 5 soil cores (0-10 cm, diam=1.9 cm) were collected on the SW-NE diagonal in the center of the 3×3m plotSoil+Inorganic+Nitrogen+-+Early+Sucesional+Microplots.csvNone311\ncolumn,no"\https://lter.kbs.msu.edu/datatables/348.csvsample_datecollection date of the samplecollection date of the sampleYearyear the sample is assigned toyear the sample is assigned totreatmentMain Site treatment that the microplot is located inMain Site treatment that the microplot is located inreplicateMain Site replicate that microplot is located inMain Site replicate that microplot is located inplot_idplot ID that the sample was collected fromplot ID that the sample was collected fromdisturbedindicates whether the plot is tilled (true) or not (false)indicates whether the plot is tilled (true) or not (false)fertilizedindicates whether the plot is fertilized (true) or not (false)indicates whether the plot is fertilized (true) or not (false)top_depth_cmthe top of the sample column with 0 cm as the soil surfacecentimeterrealbottom_depth_cmthe bottom of the soil column collected with 0 cm as the soil surfacecentimeterrealmoisture_percentsoil moisture of the sample in percent (w/w)soil moisture of the sample in percent (w/w)nh4_n_ug_gammonium N content of the sample (micro grams NH4-N per gram of soil)ammonium N content of the sample (micro grams NH4-N per gram of soil)no3_n_ug_gnitrate N content of the sample (micro grams NO3-N per gram of soil)nitrate N content of the sample (micro grams NO3-N per gram of soil)https://lter.kbs.msu.edu/datatables/685Kellogg Biological Station LTER: Early Successional Microplot Biomass (Bulk samples) (KBS055-003)Plant biomass measured in response to long-term nitrogen fertilization and disturbance. Bulk biomass samples and surface litter was collected. In some years the spring burn did not leave any surface litter.Early+Sucesional+Microplot+Biomas+(Bulk+samples).csvNone281\ncolumn,no"\https://lter.kbs.msu.edu/datatables/685.csvsample_datethe date of the field sampleYYYY-MM-DD11987-4-18speciesthe species or material classification. the species or material classification. treatmentthe field treatment sampledthe field treatment sampledreplicatethe field replicate sampledthe field replicate sampledmethodthe sampling method. "not_sorted" means that no attempt was made to sort the bulk sample.the sampling method. "not_sorted" means that no attempt was made to sort the bulk sample.disturbedwas the microplot was tilled?was the microplot was tilled?fertilizedwas the microplot fertilized?was the microplot fertilized?biomass_g_m2the dry weight of the biomass sampled in grams/square metergramsPerSquareMeterrealarea_sampledthe size of the sample area.squareMeterrealhttps://lter.kbs.msu.edu/datatables/686Kellogg Biological Station LTER: Early Successional Microplot ANPP (KBS055-004)This table is drawn from https://lter.kbs.msu.edu/datatables/154 and https://lter.kbs.msu.edu/datatables/685 by excluding surface litter and summing the biomass.Early+Sucesional+Microplot+ANP.csvNone271\ncolumn,no"\https://lter.kbs.msu.edu/datatables/686.csvsample_datethe date the plot was sampledYYYY-MM-DD11987-4-18treatmentthe field treatment that was sampledthe field treatment that was sampledreplicatethe field replicate that was sampledthe field replicate that was sampledmethodthe sample method used. 'sorted to species' means that an attempt was made to sort the biomass to species and any remaining biomass was classified as unsorted. 'not_ sorted' indicates that no attempt was made to sort the biomass to species and all of the biomass was classified as unsorted.the sample method used. 'sorted to species' means that an attempt was made to sort the biomass to species and any remaining biomass was classified as unsorted. 'not_ sorted' indicates that no attempt was made to sort the biomass to species and all of the biomass was classified as unsorted.disturbedwas the microplot tilled?was the microplot tilled?fertilizedwas the microplot fertilized?was the microplot fertilized?biomass_g_m2the dry weight of the biomass in grams/meter squaredgramsPerSquareMeterrealarea_sampledthe area that was harvested for the sample in square meterssquareMeterreal@article{citation_4074, author = {Joseph Waterton and Mark Hammond and Jennifer A Lau}, title = {Evolutionary effects of nitrogen are not easily predicted from ecological responses}, year = {2022}, journal = {American Journal of Botany}, pages = {1741-1756}, volume = {109}, number = {11}, doi = {10.1002/ajb2.16095} }