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ORCID: 0000-0002-6506-1889
Affiliation: Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg (Germany), GRID: 433014.1
Contact Person: Michael Glemnitz, ZALF, Müncheberg (Germany) GRID: : 433014.1
Data Collector: Cornelia Fischer
HostingInstitution: Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg (Germany), GRID: 433014.1
Other: weed flora, species composition, biodiversity, crop stand architecture
The dataset contains data from a yearly monitoring on at all 43 agricultural fields in a typical agricultural landscape located in the North east of the German lowlands. Three different indicators are included in the data: (i) species richness of weed flora, (ii) abundance of single species per plot and year and (iii) data on crop stands structure. The data set contains information on the spatial arrangements of the investigated plots and on the crop stands per investigational plot and year as well as code tables for the used abbreviations in the data tables.
Methods:
The monitoring was started in year 2000 on 43 single arable fields within a closed watershed area of about 250 km². The selection of fields was based on a preliminary analysis of soil type distribution in the overall area, representing the relative distribution of main soil types as well as integrating specific soil configurations. (This analysis is not included in the data). On every selected field three permanent plots were investigated year by year. The weed survey was done on an area of 4m² per plot on 1-2 dates per year. Weed species abundance was estimated by assessments of their coverage used the classification scale of BRAUN- Blanquet, modified after Pfadenhauer (1992). Due to pest management reasons, surveying oilseed rape fields was stopped in 2007. Not every field could be monitored every year (see data table on cropping per year). The nomenclature for the weed flora follow the nomenclature of Rothmaler et al.(2017).
Tables
View Sample Data
Table Code_species_names
Table CropStandStructure_YearPlotReplication
Table Cumulative_Species_Number_ReplicationPlotYear
Table Coverage_per_species_ReplicatioPlotYear
Table DK_156_Species_number_Coverage_ReplicationPlotFieldYearMonth
Table Species_number_CropPlotYear
Table Species_Occurrence_YearPlotReplication
Table Metadata_Crop_ReplicationPlotYear
Table GPS_Coordinates_PlotReplicates
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This data by ZALF is licensed under the Creative Commons Attribution 4.0
| Table name | Column name | Description | Instrument | Method | Reference |
| Metadata_Crop_ReplicationPlotYear | Name, Content | Cropping per plot, replicate and year | |||
| Code_crops | Cropcode, description | Code used for crops | |||
| Code_Species | ID_Art, Speciesname, Family, Order, Species, Aggregat, subspecies, Code | Code used for weed species | |||
| Coverage_per_species_ReplicatioPlotYear | Year, Plot, Replication, Crop code names (see table Code_species) | Coverage per species replication_plot Year | Braun-Blanquet scale | mapping | Braun-Blanquet, J., - 1964 - Pflanzensoziologie, Grundzüge der Vegetationskunde, 3rd ed. Springer, Wien-New York. 865 pp. |
| Species_number_CropPlotYear | Crop, plot, year, speciesnumber | cummulative species number per plot year and crop | Braun-Blanquet scale | mapping | Braun-Blanquet, J., - 1964 - Pflanzensoziologie, Grundzüge der Vegetationskunde, 3rd ed. Springer, Wien-New York. 865 pp. |
| Species_number_ Coverage_ReplicationPlotFieldYearMonth | Year, plot, month, replication, numberosSpecies, crop, sumOfWeedSpeciesCoverage | Species number and summarized weed coverage per replication plot year and month | Braun-Blanquet scale | mapping | Braun-Blanquet, J., - 1964 - Pflanzensoziologie, Grundzüge der Vegetationskunde, 3rd ed. Springer, Wien-New York. 865 pp. |
| CropStandStructure_YearPlotReplication | Year, plot, month, Replicate, crop, coverage_total, coverage_crops, coverage_weeds, coverage_mulch, coverage_moss, crop_stand_height, BBCH, Comment | Crop stands archticture(Structure) per replication Plot and year with coverage of crops, weeds, mulch, moss, heigt and BBCH growth stages | Expert knowledge | optical assessment | Estimation of growth stages of mono- and dicotyledous plants based on expert knowledge and BBCH scale |
| Cumulative_species_number_ReplicationPlotYear | Plot; Replication; Year | Cumulative species number per replication plot and year | Rothmaler 2017 | mapping | Jäger, E.J. (Hrsg.) (2017): Rothmaler - Exkursionsflora von Deutschland. Gefäßpflanzen: Grundband. Verlag Springer Spektrum.924 pp. doi:10.1007/978-3-662-49708-1 |
| Species_Occurrence_YearPlotReplication | Year, Plot, Replication, Speciesname | Weed species occurrence per replication plot and year | Rothmaler 2017 | mapping | Jäger, E.J. (Hrsg.) (2017): Rothmaler - Exkursionsflora von Deutschland. Gefäßpflanzen: Grundband. Verlag Springer Spektrum.924 pp. doi:10.1007/978-3-662-49708-1 |
| GPS_Coordinates_PlotReplicates | Plot, Replication, etrsx, etrsy, wgs84x, wgs84y | GPS Coordinates per replicates and plot in ETRS89 reference layer and WGS 84 coordinates |
Table CropStandStructure_YearPlotReplication
Table Cumulative_Species_Number_ReplicationPlotYear
Table Coverage_per_species_ReplicatioPlotYear
Table DK_156_Species_number_Coverage_ReplicationPlotFieldYearMonth
Table Species_number_CropPlotYear
Table Species_Occurrence_YearPlotReplication
Table Metadata_Crop_ReplicationPlotYear
Table GPS_Coordinates_PlotReplicates