cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5285/ad4e3224-4674-47a1-ad1a-80c1c109f20c
title: Response of seed germination to smoke water solutions in Cerrado plant species collected between 2013 and 2020

description: This dataset contains information about how seeds collected from Brazilian Cerrado plant species germinate in smoke water and control water solutions. Seeds were collected from site across the Cerrado between 2013 and 2020. Germination was assessed in laboratory experiments by placing seeds on wet filter paper with water and smoke water solutions. Two different methods were used. One used a commercially available smokewater, Regen 2000 and the other used smoke water produced from burning biomass collected in central Brazil. Germination was counted daily by observing emergence of radicle from the seed.

The work was supported by NE/T004851/1 NERC-FAPESP Seedcorn Fund Collaboration Project "Fire-adapted seed traits in Cerrado species" between RHUL (UK) and UNESP (Brazil).
description: Seeds were germinated in control or smoke water solutions and germination was recorded daily. Data and metadata regarding collection were transferred to electronic spreadsheet.
DOI: 10.5285/ca17e364-638d-4949-befb-b18b3770aec6
title: Stable water isotopes in Western Siberian inland waters

description: The data consist of stable water isotope composition in the rivers , lakes, soils and flooded areas in the Western Siberia Lowlands (WSL). Sampling area encompassed a 1700 km south-north transect spanning from approx. 56°N to 68°N in latitude and 74°E to 84°E in longitude. Samples were collected during multiple field campaigns between February 2014 and November 2016. 

The dataset in produced as a part of the JPI/NERC funded SIWA project "Climate impact on the carbon emission and export from Siberian inland waters".

The dataset has resulted in two publications submitted to peer-review:
(i) Ala-aho et al. (2018). Using stable isotopes to assess surface water source dynamics and hydrological connectivity in a high-latitude wetland and permafrost influenced landscape. Journal of Hydrology, 556, 279-293. 
(ii) Ala-aho et al. (2018). Permafrost and lakes control river isotope composition across a boreal Arctic transect in the Western Siberian lowlands. Environmental Research Letters, 13(3), 34028.
description: The water samples for analysis were collected by the Tomsk State University, Umeå University and Géosciences Environnement Toulouse. The samples were analysed for their isotope composition, and the dataset was compiled by the University of Aberdeen. See supporting documentation for further information.
DOI: 10.5285/3ad644c9-e341-4a15-ab35-311076defc33
title: Growth, biomass allocation and tissue nutrient concentrations of subtropical and tropical tree seedlings in response to experimental manipulation of soil phosphorus pools

description: This dataset reports metrics of plant growth, including height, total biomass and the biomass of component plant parts, and percentage root colonisation by mycorrhizas, for tree seedlings of eight tropical and seven subtropical growing in pots of soil that had been amended by addition of various sources of phosphorus (inorganic phosphate, adenosine monophosphate, phytic, or a mixture of all three) plus an unfertilized control treatment with no P additions. The aim of the experiment was to test the hypothesis that seedlings of species that associate with different types of root-inhabiting mycorrhizal fungi would respond differently to the range of P sources applied in the experiment. 

The experiments were conducted as part of a NERC Discovery Science project with the title Explaining niche separation in tropical forests: feedbacks from root-fungal symbioses and soil phosphorus partitioning led by Professor David Burslem (University of Aberdeen) reference NE/M004848/1.
description: The experiments were conducted by Xubing Liu with input from all authors. Data quality checks were conducted by all authors. The data-set provides raw data on growth metrics for each seedling, plus identifying codes for the two sites where the experiment was conducted, reflecting the tropical and subtropical origin of the seedlings, as well as experimental block, P treatment, botanical names for the tree species, and mycorrhizal type. Full details of materials and methods are provided in the paper reporting the results of the study (doi: 10.1111/ele.12939).
DOI: 10.5285/cfcc0e31-e2ce-450b-a292-3427de06a687
title: Isothermal crystallisation of PHBV-based systems recorded using Fourier transform infrared spectroscopy (FTIR) at various crystallisation temperatures

description: The dataset contains information on isothermal crystallisation of Poly(hydroxybutyrate-co-valerate) – PHBV – systems performed at different temperatures. The data was collected using Fourier Transform Infrared Spectroscopy (FTIR), using poly(hydroxybutyrate) – PHB – as well as PHBV systems of various hydroxyvalerate (HV) content – 7, 12, and 21 mol%. The temperature range span from ambient temperature to 150 °C. 
description: The data was collected at the University of Strathclyde using an FTIR spectrometer with a heated stage. The sample was prepared by melting it between two Kapton sheets, using an aluminium oval mould. Then, the sample was placed in liquid nitrogen and placed at the FTIR stage, where it was equilibrated at a given temperature. The FTIR spectra were collected every 1 minute or 1.5 minutes and saved in .csv files. The data was then baseline-corrected and analysed for the changes in the peak distribution (i.e. maximum peak wavelength, peak intensity).
DOI: 10.5285/1e5da176-6697-46e1-bbad-d275c100e103
title: Survey of opinions and behaviours regarding home composting, alongside experimental data for disintegration and degradation of compostable materials, UK, 2019-2023

description: This dataset is from a UK citizen science study called the Big Compost Experiment, and includes 1) Qualitative and numerical survey data from UK citizens about their opinions and behaviours towards biodegradable and compostable plastics, food waste disposal and home composting, and 2) Qualitative and numerical data from home composting experiments carried out on biodegradable and compostable plastic materials.

Data includes opinions and behaviours towards biodegradable and compostable plastics, food waste disposal, home composting methods, geographical location, observed disintegration and degradation performance of compostable plastics in home compost. 

Data were collected between 07/11/2019 - 30/08/2023
description: Data was collected from participants via an online survey and an optional home composting experiment account. The survey comprised questions about opinions and behaviours towards biodegradable and compostable plastics, food waste and composting behaviours. The home composting experiment comprised self selecting compostable materials and testing them in participant home composters and sharing results about disintegration and degradation of the material after a participant’s normal composting timeframes via an online account. Data were analysed by the UCL Plastic Waste Innovation Hub research team (Purkiss et al., 2022).
DOI: 10.5285/28538610-0936-48b8-b167-ee6ee8fdc491
title: Annual estimates of occupancy for six invertebrate taxa in areas of high, low and no cropland cover in Great Britain, 1990-2019

description: The dataset contains occupancy estimates for 1,535 species of six invertebrate taxa (Apoidea - bees, Syrphidae - hoverflies, Coccinellidae - ladybirds, Arachnida - spiders, Carabidae - carabids and Heteroptera - plant bugs) in regions of high, low and no cropland cover in Great Britain between 1990 and 2019. Occupancy is the proportion of 1km grid cells occupied by a species, as estimated by an occupancy-detection model. The dataset includes 999 samples from the model’s posterior distribution per species:year combination and for each of three regions of high, low  and no cropland cover.
description: The dataset was generated using observations of species collated by UK recording schemes and societies as the input data for a Bayesian occupancy-detection model. The cropland cover regions were defined using the Land Cover Change 1990-2015 (25m raster, GB). The input species data was standardized according to the requirements of the model and to desired coverage. Observations of species had to meet the following criteria to be included in the final input dataset:
  - Date of the record known to the day
  - Location of the record known to 1x1km square precision
  - Record was from 1990 onwards
  - The location of the record was in GB (strictly England, Scotland and Wales)

Species names were checked with guidance from the scheme organisers, duplicate records were then removed from the dataset. The occupancy modelling framework used here was based on the random walk model. Alterations made to the modelling framework include cropland cover region year effects in the state model and a categorical specification of list length in the detection model. For a complete description of the model, see the supporting documentation.
DOI: 10.5285/252b6a14-8a0e-4a6f-a879-99dff46fec71
title: Leaf water potential of tropical forest tree species, Sirsi, Western Ghats, India, 2020-2021

description: This dataset includes time-series of pre-dawn and mid-day leaf water potentials for 10 tree species. The time-series covers one year with leaf water potentials measured every three months. These data when combined with hydraulic conductance vulnerability curves (also measured during this project) are an indicator of a tree's safe operating space under dry and high vapour pressure deficit conditions.

The overall purpose of the measurements made by this project is to determine eco-physiological limits of functioning of tropical trees in Western Ghats India and to relate them to continuously measured temperature and water status of tropical forest trees at a representative forest site (Sirsi).
description: Leaf water potential was measured on detached leaves using a Scholander pressure chamber (Model 1505D, PMS Instrument, Oregon, USA). Predawn water potential measurements were done between 4am to 6am/sunrise, mid-day water potentials between 12:30PM and 3PM. Measurements were made every two months over one year starting September 2020. Per species and for a given month measurements were made on one leaf each of five individuals.
DOI: 10.5285/c2eaade3-5395-4c62-9733-d9dbed1546af
title: Litterfall nutrient content in fertilised plots in the Central Amazon, 2017-2019

description: The data consists of leaf nutrients from litterfall in a fertilised old-growth forest in the Central Amazon. Data was collected in a full factorial nutrient addition experiment (nitrogen, phosphorus, and cation treatments). The dataset includes realized nutrient concentration carbon, nitrogen, phosphorus, potassium, magnesium, calcium in grams and manganese, zinc in miligrams. Also hemicellulose, cellulose and lignin as a percentage.

The fieldwork was completed in August of 2017, 2018, and 2019.

The study was funded by NERC, BDFFP (logistical support), and the Brazilian government (students scholarship).
description: To determine macro and micronutrients and secondary compounds, litter samples were bulked by plot using litterfall material collected during the months of August of 2017, 2018, and 2019. All analysis were conducted at INPA's soil and plants lab. After dried, samples 0.5g of each sample were ground using a knife and/ or ball mill for nutritional analysis. Leaves and insect frass were analysed separately. Micronutrients, phosphorus, and cations were analysed by nitroperchloric digestion protocol described by Malavolta et al. (1989). The base cations (K, Ca, and Mg) and micronutrients were determined by atomic absorption spectrophotometry (AAS, 1100 B, Perkin-Elmer, Ueberlingen, Germany) (Anderson and Ingram, 1993). The total P concentrations were determined by colorimetry (Anderson and Ingram, 1993), and quantified by spectrophotometry (UV-120-01, Shimadzu, Kyoto, Japan). The C and N contents were determined using an automatic C and N analyzer (VARIO MAX CHN Element Analyzer) (Nelson and Sommers, 1996). Leaves were not identified by species and leaf characteristics represent means at plot level (Metcalfe et al., 2014). 

Concentrations of lignin and cellulose in the litter were determined by the ADF- sulfuric method (Van Soest, 1963; Rowland and Roberts, 1994). The method consists in applying an acidic detergent solution (ADF), followed by the cellulose using H2SO4 72%, with lignin subsequently determined by weight loss on ignition 0 to 50° C in a muffle furnace.
DOI: 10.5285/ebbd1ba0-4497-4c80-891a-34ef3b8989cd
title: Countryside Survey 1990 estimates of linear feature lengths in Great Britain

description: This dataset consists of stock (length) data for linear features across Great Britain in 1990. The data are national estimates generated by analysing the sample data from 508 1km squares surveyed for the Countryside Survey long term monitoring project, then scaling up to a national level. The data are presented as mean lengths for 7 different feature categories within 45 different land class types, based on the ITE Land Classification. The Countryside Survey is a unique study or 'audit' of the natural resources of the UK's countryside, carried out by the Centre for Ecology & Hydrology. The sample sites are chosen from a stratified random sample, based on a 15 by 15 km grid of GB. Surveys have been carried out in 1978, 1984, 1990, 1998 and 2007 with repeated visits to the majority of squares. The countryside is sampled and surveyed using rigorous scientific methods, allowing us to compare new results with those from previous surveys. In this way we can detect the gradual and subtle changes that occur in the UK's countryside over time. In addition to linear features, habitat areas, species plot, soil plot, freshwater habitat and satellite map data are also produced by Countryside Survey.
description: The data were recorded onto paper field sheets in the summer of 1990 by surveyors. Data were recorded from 508 1km squares sited across Britain, selected by random stratified sample. The boundary lines were digitized in the 1990s. The digitized data were used to generate national estimates of the stock of linear features for Great Britain using the standard Countryside Survey methodology (refer to the online documentation). Estimates are presented by ITE Land Class (2007 version), as mean length per Land Class.
DOI: 10.5285/5100e84a-6af9-419b-b4b6-4a5df13b1aec
title: Modelled daily soil moisture and soil temperature at 1km resolution across the UK mainland, 1965-2018

description: This dataset contains model outputs of daily mean volumetric water content and topsoil temperature at 1 km resolution across the UK mainland for the years 1965-2018. The outputs are generated using neural network models trained on COSMOS-UK (cosmic-ray soil moisture) observational data. The data are presented in monthly NetCDF files on the British National Grid.
description: The driving meteorology used to produce the outputs were from the CHESS-met dataset. Specifically, the inputs required to generate topsoil temperature outputs are: current day and previous day driving meteorology (temperature, total precipitation, longwave radiation, shortwave radiation, and the sunlight-hours average shortwave radiation); soil type vector (normalized ratios of five classes: sand, silt, clay, chalk, peat); soil organic carbon; bulk density of soil; land cover vector; elevation. There is an optional input of the MODIS 1 km Land Surface Temperature satellite product Day and/or Night values. The output of the topsoil temperature model is used as input to the soil moisture model.

The inputs required for the soil moisture model are: daily driving meteorology (temperature, pressure, total precipitation, relative humidity, longwave radiation, shortwave radiation, wind speed, and the sunlight-hours average shortwave radiation); soil type vector (normalized ratios of five classes: sand, silt, clay, chalk, peat); soil organic carbon; bulk density of soil; base flow index from the hydrology of soil types (BFIHOST); land cover vector; soil temperature; elevation. There is an optional input of the daily 1 km Soil Water Index satellite product from Copernicus.

Volumetric water content values in the COSMOS-UK data (TDT point probes and neutron sensor) that were higher than 90% were removed from the training set. The COSMOS-UK site Tadham Moor was removed from the training set after visual inspection of the TDT and neutron sensor data.
DOI: 10.5285/fc1cf9a7-d7b0-4948-8328-497d6e071950
title: Light penetration for determination of the euphotic zone in Durleigh Reservoir, 2018

description: The dataset contains light penetration through the water column at a Durleigh Reservoir in Somerset, England.

HOBO Pendant Temperature/Light 8K Data Loggers (Onset) were positioned at 0.5 m, 1.5 m, and 2.5 m depths on a temperature chain Durleigh. The loggers were deployed between 30 May 2018 and 5 October 2018. 
description: The exact location of the temperature chain was latitude: 51.1210 and longitude: -3.0403, and the depth of the water column was 6 m. The chain consisted of a buoy (A2 size) attached to a 10 kg weight using rope. Measurements for light (lumens/ft2, accuracy: ± 2.5%) and temperature (°F) were taken every 10 minutes. The loggers were deployed between 30 May 2018 and 5 October 2018.
DOI: 10.5285/189900a4-f7a9-41bd-b6f5-eef694209f87
title: Soil moisture profiles from permafrost in subarctic Canada

description: This dataset consists of soil moisture profiles from permafrost in subarctic Canada. Soil mositure profiles were monitored during summer in 2013 and 2014 in Yukon and Northwest Territories. Monitored sites included peatland plateaus, unburnt and burnt black spruce forests, and additional sites.
description: Moisture was measured using a PR2 profile probe with 4 sensing elements at 10, 20, 30 and 40cm and a portable reading meter HH2 (Delta-T Devices Ltd, Cambridge, UK). Following the manufacturer instructions, access tubes were inserted in the soil using an augering kit to minimize disruption in the structure of the soil profile. The access tubes were initially placed as deep as thaw depth allowed and further inserted deeper as the active layer thickened. At time of measurement, the PR2 profile probe was connected to the reading meter, removed from the protective tube and inserted in the access tubes. Values of volumetric soil moisture (m3 m-3) were recorded from the meter using the default calibration.
DOI: 10.5285/6dd7ac13-c3e3-4156-a0d8-929227dbf9e8
title: Loch Leven monitoring data (water quality, chemistry, crustacean zooplankton), 2022

description: This dataset contains weather conditions, water quality, water chemistry and crustacean zooplankton counts sampled at Loch Leven throughout the year 2022. Loch Leven is a lowland lake in Scotland, United Kingdom. The data were collected as part of a long-term monitoring programme, which began in 1968 and is still underway. Sampling occurs roughly every 2 weeks with laboratory analysis and data processing being performed at the UK Centre for Ecology & Hydrology Edinburgh site.

The sampling and processing was supported by the Natural Environment Research Council award number NE/R016429/1 as part of the UK-SCAPE programme delivering National Capability.
description: The data was collected from fieldwork at Loch Leven during 2022 and recorded into a database with some samples being processed in the laboratory first. All data has been through a QA process, which is detailed in the metadata document.
DOI: 10.5285/07347484-5d35-4335-bdbe-ac9d7b33c84f
title: Impact of environmental radiation on the health and reproductive status of fish from Japan, 2017

description: Data set presents results from fish biometry field work within four lakes in Japan (Suzuuchi, Funazawa, Kashiramori, Abakuma). Data comprise sampling location, fish species, sex, length, weight (total fish, gonad and liver weight). Fish were sampled during May 2017; target species included crucian carp, common carp and smallmouth bass. For the health and reproductive status assessment, fish of similar weight and total length were collected. Gill nets (20 m length and 21 mm mesh size) were employed to ensure capture of homogeneous groups of mature ﬁsh. 
The work described here was conducted under the TREE project (http://tree.ceh.ac.uk/) funded by the Natural Environment Research Council, Environment Agency and Radioactive Waste Management Ltd. 
description: Fish were carefully removed from the nets and kept alive into tanks containing aerated water. Fish fell unconscious by a blow to the head and were then killed by performing a concussion of the brain to limit as much as possible the suﬀering as recommended by the UK Home Oﬃce procedure (Animals Scientiﬁc Procedures Act, 198618). Scales were sampled for age determination. Body weight, total length, and gonadal weight recorded for each ﬁsh. The gonads were dissected, weighted, fixed in buffered formalin solution for 24h and preserved in ethanol for later study. 
File uploaded is of the biometry data retrieved from the field work.
DOI: 10.5285/aec7f752-6be6-4626-bbdb-921bf8d7e3ce
title: Diatom community composition over a seasonal cycle in the Hampshire Avon catchment

description: This dataset contains diatom species count data from rivers within the Hampshire Avon catchment, UK. Data were collected from five sediment cores at each site, collected in February, April, August and November during 2013. Data were collected as part of the project "The role of lateral exchange in modulating the seaward flux of C, N, P", funded under NERC's Macronutrients Cycles research programme.
description: At each site, five sediment cores (internal diameter 8 cm) were taken within a 25 m long river reach. From this core, four sub-cores (internal diameter 2 cm) were taken in order to pair measurements. Sub-cores were stored depending on what analysis was done. All data were collected using standard methodologies as detailed in the supporting information.
DOI: 10.5285/d57abebf-b172-4d62-95b5-bd8d5cef2671
title: Monthly ammonia measurements from passive samplers using ALPHA® PTFE1010 membrane at four UK Eutrophying and Acidifying Pollutants (UKEAP) network sites, 2022

description: Data comprise monthly ammonia air concentrations from UK CEH ALPHA® (Adapted Low-cost Passive High Absorption) samplers co-located with UKEAP DELTA sites from January 2022 to December 2022. The UK Eutrophying and Acidifying atmospheric Pollutants (UKEAP) network measures air pollutants at rural sites across the UK. Originally the purpose of these measurements was for a calibrated ALPHA® uptake rate for the UK CEH Edinburgh research laboratory. Samplers are exposed in monthly cycles at the beginning of each month.
description: Local site operator duties are completed by UK Centre for Ecology and Hydrology (UKCEH) staff and Agri-Food and Biosciences Institute (AFBI) staff at Hillsborough and analysis is completed by UKCEH Edinburgh. Data analysis and preparation is conducted using the AAGA (Ammonia Acids Gases and Aerosols) data processing tool. AAGA is a database designed to introduce more reliable, reproductible and traceable way of handling data from ALPHA® samplers.