https://researchdata.se/en/catalogue Search results en The project "Åkerogräsinventeringen" (the inventory of arable plants), done by the Swedsh University of Agricultural Sciences and the Swedish Botanical Society 2020-2023, aimed to map out the occurrences of arable plants in Swedish fields. Here, cleaned and filtered data from the survey is presented. The dataset and the project are thoroughly described in the article "A national-scale dataset of arable plant abundance from citizen science surveys of Swedish field margins" (Note that this article is a data description, and not a study). Collection method: Volunteers from the Swedish Botanical Society surveyed a 100*1 m transect, along the ploughed part of the field margin. All plants in the transect were noted and their abundance estimated. Fields from all of Sweden were surveyed. Data cleaning: The data have been checked and errors corrected in communication with the surveyors. In the cases where uncertainties remained, the sites have been removed in this cleaned and filtered version of the dataset. The excel file consists of two tabs. The first tab provides important information on the proper usage of the data. The second tabs contains the data. The data file consists of 24 columns and 7364 rows. Note that all coordinates are given according to WGS84. Mon, 26 Jan 2026 16:22:43 GMT https://researchdata.se/en/catalogue/dataset/2025-338 https://researchdata.se/en/catalogue/dataset/2025-338 Swedish University of Agricultural Sciences Rebecca C. Örnberg Alexander Menegat Darwin T. Hickman Alistair G. Auffret Johan Nilsson Gunnar Nyborg Sofie Wikberg Jan Y. Andersson Sebastian Sundberg This dataset presents the results of a soil sampling field campaign conducted at four sites in Sweden, which constitute the humus balance experimental series. The humus balance experiments include the R3-0020, which contains data for soil organic carbon and nitrogen in cereal cropping systems, and the R3-0021series, which contains data for soil organic carbon and nitrogen in a ley rotation system and This series was established between 1971 and 1980 at Röbäcksdalen, Säby, Lanna, and Lönnstorp, along a climate gradient. The research objective of the study was to study the effect of cropping systems and nitrogen fertilization on soil organic carbon (SOC) and nitrogen (SON) stocks. The main outputs of this field campaign are SOC and N content at different soil depths along the profile. The file contains 560 rows (observations) and 10 columns (variables). Thu, 06 Nov 2025 08:21:17 GMT https://researchdata.se/en/catalogue/dataset/2025-183 https://researchdata.se/en/catalogue/dataset/2025-183 Swedish University of Agricultural Sciences Benjamin Bukombe Martin Bolinder Gunnar Börjesson Thomas Kätterer Data deposited in association with above named article to be published in the journal: Biogeosciences. Biogenic Volatile Organic Compound (BVOC) data covers full processing from retention times, comparison to standards and quantification of relevant compounds. Ecosystem respiration data has already been converted to flux (linear increase in concentration of carbon dioxide (CO2) over time over sampling period). Plant Root Simulator (PRS) probe, moisture, and temperature data listed for each site and treatment. Vegetation community described for each community based on percent cover of each species. Mon, 02 Oct 2023 06:24:27 GMT https://researchdata.se/en/catalogue/dataset/2023-177 https://researchdata.se/en/catalogue/dataset/2023-177 University of Gothenburg Cole Brachmann Tage Vowles Riikka Rinnan Mats Björkman Anna Ekberg Robert Björk This study makes part of the research project GINFRA – green rights-of-way infrastructure for biodiversity and ecosystem services. The aim of the project was to quantify whether linear infrastructure habitats (road verges and power-line corridors) support biodiversity by assessing the influence of the area of these habitats in the landscape, their contribution to landscape connectivity and population persistence. The linked data was collected by surveying butterflies, bumblebees, and vascular plants in five types of prevalent grasslands (pastures, road verges along small gravel roads, road verges along big paved roads, power line corridors, and field borders). These grasslands were embedded in 32 landscapes with area 4 km² each, that differed in the area of linear infrastructure habitats (road verges and power line corridors) and semi-natural grasslands of high nature value, while other land-use types were kept constant. The landscapes were dominated by forest. Within each grassland habitat, the surveyor established a 200 m transect and then identified all butterflies and bumblebees along it. For plants, a 1 x 1 m quadrat was established at the centre of a 50 m section in each transect, i.e. each transect had four plots in which all plant species were identified. Denna studie är en del av projektet GINFRA – green rights-of-way infrastructure for biodiversity and ecosystem services. Projektets huvudsyfte var att kvantifiera om linjära infrastrukturmiljöer (vägkanter och kraftledningsgator) bidrar till mångfalden av växter och insekter i olika rumsliga skalor. Detta gjordes genom att uppskatta hur linjära infrastrukturmiljöers mängd i landskapet bidrar till mångfalden samt hur mycket de bidrar till landskapets konnektivitet. Datan samlades genom att inventera dagfjärilar, humlor, och växter i fem typer av gräsmarker (betesmarker, vägrenar längs enskilda vägar, vägrenar längs allmänna vägar, kraftledningsgator, och åkerkanter). Alla dessa habitat typer fanns inom 32 landskap med area 4 km2 som skilde sig i areal av linjära infrastrukturmiljöer (vägrenar och kraftledningsgator) och ängs-och betesmarker. Arealen av andra markanvändningar var konstanta mellan landskap och alla landskap var skogsdominerade. Thu, 04 Apr 2024 09:16:47 GMT https://researchdata.se/en/catalogue/dataset/2023-23-1 https://researchdata.se/en/catalogue/dataset/2023-23-1 Swedish University of Agricultural Sciences Juliana Dániel-Ferreira Yoan Fourcade Riccardo Bommarco Jörgen Wissman Erik Öckinger