KatherineGross

Michigan State University3700 East Gull Lake DriveHickory CornersMI49060

(269) 671-2235(269)671-2351kgross@kbs.msu.eduKarenRenner

Michigan State UniversityEast LansingMI48824USA

(517) 355-0271 x1233(517)353-5174renner@msu.eduThe distribution and composition of the weed seed bank in treatments 1-7 of the main cropping system experiment (see KBS004) is periodically evaluated to determine # how well the seed bank predicts weed abundances and composition in subsequent years, and # how changes in disturbance (tillage) and plant species (cropping systems) affect the bank. Composite soil samples to two depths are periodically elutriated to determine seed densities, species composition, and viabilities of seven target species which are dominant on the site.LTERKBSKellogg Biological StationHickory CornersMichiganGreat LakesKellogg Biological StationData Manager

Kellogg Biological Station3700 East Gull Lake DriveHickory CornersMi49060USAdata.manager@kbs.msu.eduhttp://lter.kbs.msu.edu

uid=KBS,o=lter,dc=ecoinformatics,dc=orgallpublicreadSeed bank by direct germinationSeed bank data estimated by direct germinationSeed bank by direct germinationNonecolumn,http://lternt2.kbs.msu.edu/Data/table.jsp?Product=KBS006-001&limitBy=year&order=descYearThe year the observation was madeYYYY864001987-4-18ReplicateThe replicate (block) that the sample was drawn fromThe replicate (block) that the sample was drawn fromTreatmentThe treatment from the main study site that the sample was drawn fromThe treatment from the main study site that the sample was drawn fromStationThe station the sample was drawn fromThe station the sample was drawn fromPlant_CodeThe KBS Plant Code of the plants that germinatedThe KBS Plant Code of the plants that germinatedSpeciesThe Species name of the plants that germinatedThe Species name of the plants that germinatednumber of seedlingsNumber of seedlings that germinated1integerSeedbank by elutricationSeed numbers determined by elutrication of soilSeedbank by elutricationNonecolumn,http://lternt2.kbs.msu.edu/Data/table.jsp?Product=KBS006-002&limitBy=year&order=descYearThe year of the observationYYYY864001987-4-18ReplicateThe replicate (block) that the sample was taken fromThe replicate (block) that the sample was taken fromTreatmentThe treatment (main site) that the sample was taken fromThe treatment (main site) that the sample was taken fromStationThe station the sample was taken fromThe station the sample was taken fromDepthThe depth that the soil sample was taken fromPlant codeThe plant code of the seeds observedThe plant code of the seeds observedSpeciesThe Species name fo the seeds observedThe Species name fo the seeds observednumber_of_seedsThe number of seeds observed1integer