Sources of information on agricultural census, land use, imports/exports, CAP and greenhouse gas emissions
Geoff Squire, James Hutton Institute
Guidance at the Citizen’s July event at the Scottish Parliament, 29-31 March 2019, was based on analysis of mainly online resources available through official government web sites. These are not all the useful sources but give some idea of the range of information that researchers working on land use and food systems need to be familiar with.
General information on environment
The Scottish Government, the Scottish Environment Protection Agency (SEPA) and Scottish Natural Heritage (SNH) offer a wide range of material on land and water, for example Scotland’s Environment https://www.environment.gov.scot/ and https://www.sepa.org.uk/ (look at the list under ‘Environment’) and https://www.nature.scot/.
Agriculture, land areas occupied and crop yield
The annual (June) agricultural census gives areas of the different types of crops and grass and the numbers of farm animals. In recent years it has been included as part of the Economic Report on Scottish Agriculture (see later). It is available online:
- Agriculture, Fisheries and Rural Statistics: Scottish Government web page leading to various annual summaries and publications – https://www2.gov.scot/Topics/Statistics/Browse/Agriculture-Fisheries
- Essential for trends – annual summaries from 1912 in the early years of which are data going back to the 1880s: https://www2.gov.scot/Topics/Statistics/Browse/Agriculture-Fisheries/Publications/histagstats.
- Towards the end of each year, the government publishes preliminary and then in December final estimates of yield and total output from the main field crops in Scotland (e.g. barley, wheat, oats, oilseed rape): https://www2.gov.scot/Topics/Statistics/Browse/Agriculture-Fisheries/Publications/harvestsummary. To begin, look at the excel files and diagrams giving crop area, yield per unit area and total production over the last couple of decades.
- See also https://www.statisticsauthority.gov.uk/correspondence/compliance-check-of-statistics-from-the-scottish-june-agricultural-census/
Land use and soils
Various datasets, most available to the public, can be viewed and downloaded from the James Hutton Institute’s web site and various sites on soils and environment. Here are some of them:
- Natural Resource databases at the James Hutton Institute – for an introduction see https://www.hutton.ac.uk/learning/natural-resource-datasets
- Land cover of Scotland – descriptions and maps of different types of land cover https://www.hutton.ac.uk/learning/exploringscotland/landcover-scotland-1988
- Land capability for agriculture https://www.hutton.ac.uk/learning/natural-resource-datasets/landcover/land-capability-agriculture
- Soil database and maps – start at National Soils Archive and follow links to maps etc. https://www.hutton.ac.uk/about/facilities/national-soils-archive
- See also Scotland’s Soils https://soils.environment.gov.scot/
Agricultural inputs – fertiliser and pesticide
The government carries out regular survey of fertiliser and pesticide usage for England & Wales and Scotland. The UK is well ahead of the pack compared to most countries in its recording of farm inputs.
- Fertiliser Usage on the gov.uk web site at https://www.gov.uk/government/collections/fertiliser-usage – links available to download annual reports of Fertiliser Practice, and go to the tables at the back for details of Scotland or England & Wales separately.
- Pesticide Use Survey by Science and Advice for Scottish Agriculture – arable crops surveyed every two years, grass every four years, etc. https://www.sasa.gov.uk/pesticides/pesticide-usage/pesticide-usage-survey-reports
Economics of Scottish Agriculture, import-export, use of products
Economics of land use, farm business and imports vs exports are well resourced online, but the best way to check how much of the food you eat is grown locally is to look at the labels on the products in your shopping basket. Many of the products do not state clearly where the contents were grown or reared, but typically much more than half will be imported.
- Links to farm business etc. from https://www2.gov.scot/Topics/Statistics/Browse/Agriculture-Fisheries
- Economic Report on Scottish Agriculture, the standard annual account – https://www2.gov.scot/Topics/Statistics/Browse/Agriculture-Fisheries/PubEconomicReport
- Origins of Food consumed in the UK – https://www.gov.uk/government/publications/food-statistics-pocketbook-2017/food-statistics-in-your-pocket-2017-global-and-uk-supply#uk-food-production-to-supply-ratio-1988-to-2017 – with links to other sites. Also ‘pocket books’ which may be hard to interpret – https://www.gov.uk/government/publications/food-statistics-pocketbook-2017/food-statistics-in-your-pocket-2017-summary
- Food and Drink in Scotland: key facts 2009 contains a mass of statistics but it is well worth looking down the list of contents to check for data on diet, health, agricultural production and many other topics https://www.webarchive.org.uk/wayback/archive/20180517143714/http://www.gov.scot/Publications/2009/06/24144522/0
- There are several other sources giving summaries at UK and EU level: but worth checking where the they get their facts from.
EU farm payments scheme – Integrated Administration and Control System
The EU keeps a record of all fields that landowners submit for farm payments. The scheme is called the Integrated Administration and Control System or IACS. Each field is referenced to a spatial location. Over several years, it is possible to build an understanding of the sequence of crops and grass grown throughout in each field the country. The maps generated from these data are now used in research. More on IACS at:
- European Commission web site for a description of IACS https://ec.europa.eu/agriculture/direct-support/iacs_en
- The James Hutton Institute’s review of Greening is given below at ‘Common Agriculture Policy Greening’.
Common agriculture policy ‘greening’
The Common Agriculture Policy (CAP) has been under scrutiny for some time. Its main deficiencies are that it has at various times paid land owners simply for being there, paid in proportion to the land they own and has done little to solve the many environmental problems related to modern land usage. ‘Greening’ measures which were intended to improve environmental effects of land use also gained much negative publicity. There have been several recent reviews of CAP Greening:
- European Court of Auditors special report on CAP Greening, begins with an executive summary at http://publications.europa.eu/webpub/eca/special-reports/greening-21-2017/en/ from where the report itself can be downloaded. Concludes that CAP Greening does not work.
- James Hutton Institute – major review and analysis published in 2017, including trends in environmental indicators, report in several volumes available at https://www2.gov.scot/Topics/farmingrural/Agriculture/CAP/CAP2015/Greening/CAP-Greening-Review. Start with the summary. [NB Error in link found 4 July 2019, new links now located and will be provided.]
- Scottish Government’s review of greening prepared by a small working group of people from farming, conservation and research, summary paper of 6 pages at https://www.gov.scot/publications/cap-greening-group-discussion-paper/
- Geoff Squire’s own analysis of the working group’s discussions at http://curvedflatlands.co.uk/eu/cap/greening-with-decision-trees/
Greenhouse gas emissions (GHG)
A highly technical subject. The UK and Scottish governments have formal targets to reduce emissions of greenhouse gases, which are considered to cause global warming. However, many countries including the largest industrial nations are doing little about it. Emissions related to rural land use are given in two broad categories: 1) Agriculture, including emissions from livestock, soils, etc. and 2) Emissions due to change in land use (Land use, land use change and forestry or LULUCF). Those from agriculture rank third behind industry and transport in terms of total emissions but reductions of agricultural emissions have stalled over the past decade. While agriculture loses gases to the air, some aspects of LULUCF take in and store gases, the most obvious being forestry (trees store carbon dioxide from the air). If aspects of land use change related to agriculture are included (e.g. land converted from grassland to ploughed land) then agricultural land use ranks second in Scotland.
- The Scottish Government’s latest summary is for the year 2016 and available at https://www.gov.scot/publications/scottish-greenhouse-gas-emissions-2016/pages/6/
- Annual summaries of progress for Scotland are also published by the Committee on Climate Change (CCC), the latest for 2018 available at: https://www.theccc.org.uk/2018/09/24/scotland-still-outperforms-the-uk-in-reducing-emissions-but-transport-and-agriculture-remain-significant-challenges/. This link goes to a summary from where the report can be viewed (link on right). Not too technical.
- The National Atmospheric Emissions Inventory keeps stock of changing emissions in different sectors. Main web page is at – http://naei.beis.gov.uk/emissions/. Trends from 1990 when the estimates began are given separately for Scotland.
- More detailed summaries (e.g. emissions from beef cattle, dairy cattle, fertiliser, dung, etc.) can be accessed at the UK Emissions data selector http://naei.beis.gov.uk/data/data-selector
Even if GHG reductions in Scotland or the UK as a whole have negligible effects on the global picture, there is still benefit in reducing agricultural emissions here because at the same time they reduce the nitrogen fertiliser applied to land, some of which is wasted and pollutes other land and water.
Climate and weather
The Met Office keeps records of climate and assesses trends and the potential for change. They maintain a large web site – here are some links (but note that they are upgrading their web site and for some data you get redirected to the older site). The are also EU-wide and worldwide datasets – climate change is a hot topic, but it might be best to begin with those below.
- State of UK climate annual reports – https://www.metoffice.gov.uk/climate/uk/about/state-of-climate: the picture-summary is useful, but take care about some of the generalisations. For example, the increase in the last decade in what’s called ‘growing degree days’ (which is roughly the temperature conditions for good plant/crop growth) does not translate into higher crop yield because a warm summer is also usually a dry summer.
- UK and regional data series – long term records for e.g. Scotland E, N and W for certain variables such as temperature, sunshine and rainfall https://www.metoffice.gov.uk/climate/uk/summaries/datasets.
- Long term data for regional rainfall – https://www.metoffice.gov.uk/hadobs/hadukp/
- Maps https://www.metoffice.gov.uk/climate/uk/summaries/anomacts
‘Who owns land’ in Scotland is becoming a subject of increasing interest. The following major report from the Scottish Land Commission was published March 2019.
- Scale and Concentration: Investigation into the issues associated with scale and concentration of land ownership in Scotland available at https://landcommission.gov.scot/pub/scale-concentration-investigation-into-the-issues-associated-with-scale-and-concentration-land-ownership-in-scotland/ plus a summary and detailed reports.
Natural environment, nature and biodiversity
The natural environment and biodiversity are widely recorded by several organisations. One of the best places to start and to examine trends is the State of Nature Report produced by a group of leading conservation bodies. Anyone with particular interests can follow the links within.
- State of Nature Report downloadable from several organisations e.g. https://www.bto.org/research-data-services/publications/state-nature/2016/state-nature-report-2016
- More on Scotland’s biodiversity at Scottish Natural Heritage https://www.nature.scot/
There is much other data about land use and its effects on the economy and environment. The list above concentrates on UK and mainly Scottish sources and is typically used by Squire and colleagues to help form opinions and give advice. Other sources commonly referred to are those from the Food and Agriculture Organisation of the United Nations (FAO), Organisation for Economic Cooperation and Development (OECD), World Health Organisations (WHO), World Trade Organisation (WTO) and links around the UN’s Sustainable Development Goals (SDG). To find these search for the abbreviation (FAO, etc.) plus a topic of interest such as ‘annual crop production’.
Researchers also use a wealth of scientific reports and papers, but many of them are not available without subscription or payment for download. This non-availability of much scientific and technical research can be a major problem for the interested member of the public who wants to find out more. Matters are improving since both the Scottish Government and the EU increasingly require the results of research are available online or ‘open access’. An example of a recent open access paper is published by the journal Food and Energy Security at https://doi.org/10.1002/fes3.175
G R Squire
James Hutton Institute Dundee UK (Principle Scientist to 2018, honorary 2019 onwards)
Online 2 July 2019 (draft with limited circulation 5 April 2019). This page will be edited and amended as necessary to give new links and repair broken ones.