Are datasets from commercial agricultural analyses sufficiently robust for national-scale monitoring of topsoil indicators?
商业农业分析的数据集对于国家范围内表土指标的监测是否足够可靠?
基本信息
- 批准号:NE/N012380/1
- 负责人:
- 金额:$ 3.87万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Fellowship
- 财政年份:2016
- 资助国家:英国
- 起止时间:2016 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Soil is a vital natural resource which performs a range of functions including acting as a growth medium for food, fuel and fibre, filtering water, storing carbon (climate regulation) and as a repository for biodiversity. Agricultural soils in Great Britain are subject to a range of pressures which lead to changes in their properties over time that can (despite farmers' best efforts) exacerbate degradation threats such as erosion (loss of the soil resource), compaction and nutrient losses to freshwater. Agricultural soils must also have sufficient nutrients in available forms to ensure they can maintain large crop yields to feed an increasing population. It is therefore essential that we carefully monitor (over time) key properties of British soils to ensure they can continue to function effectively and also that these properties of the soil resource mean it is less likely to be degraded. These key properties include the organic matter content of the soil, the available quantity of two key nutrients for plant growth (phosphorus and potassium) and soil pH (its level of acidity - important in determining nutrient availability and plant growth in general). Government administrations across Great Britain (Defra, Welsh and Scottish Governments) have funded national-scale research to monitor the properties of agricultural topsoil since 1971 and various data have been analysed statistically to report on changes and trends of key soil indicators up to 2007. With declining research budgets, government departments are considering alternative, cost-effective ways to monitor these indicators and one approach is to utilise the soil measurements which farmers pay for, undertaken by commercial laboratories. Although there are many more of these farmer-initiated measurements in comparison to those undertaken using government research funds, the former are not collected to a statistical design and so need to be analysed in a different way to the latter. The farmer-initiated soil measurements may not be representative of soils more generally which could lead to different (biased) results in comparison with the measurements led by government-funded researchers. The aim of our project is to undertake comparisons between the data from farmer-initiated soil measurements and research led measurements to determine the size of any differences in the average values of the key indicators at regional and national scale. We will use statistical procedures which mean we can make consistent comparisons between the two types of data. If the differences we observe are small, it may be possible to use the farmer initiated surveys to monitor soil properties, thereby avoiding the costs of future national-scale, government funded surveys. Rather than approaching individual farmers, we have secured permission to use those data generated by the largest commercial agricultural soil laboratory in Great Britain. We will compare the values of key soil indicators from farmers' data and government-funded research data for the two main agricultural land use types (arable production and grassland) over the last ten years. We will work with, and present our findings to, those in government which have responsibility for soil policy at national scales.
土壤是一种重要的自然资源,具有一系列功能,包括作为食物、燃料和纤维的生长介质,过滤水,储存碳(气候调节)以及作为生物多样性的储存库。大不列颠的农业土壤受到一系列压力的影响,这些压力导致土壤性质随时间发生变化,这些变化可能(尽管农民尽了最大努力)加剧退化威胁,如侵蚀(土壤资源损失)、压实和养分流失到淡水中。农业土壤还必须以可利用的形式提供足够的养分,以确保它们能够维持大的作物产量,以养活不断增长的人口。因此,我们必须仔细监测(随着时间的推移)英国土壤的关键特性,以确保它们能够继续有效地发挥作用,而且土壤资源的这些特性意味着它不太可能退化。这些关键特性包括土壤的有机质含量、植物生长的两种关键养分(磷和钾)的有效量和土壤pH值(其酸度水平----对确定养分的有效性和一般植物生长很重要)。自1971年以来,大不列颠各地的政府行政部门(Defra、威尔士和苏格兰政府)资助了全国范围的研究,以监测农业表土的特性,并对各种数据进行了统计分析,以报告截至2007年关键土壤指标的变化和趋势。随着研究预算的减少,政府部门正在考虑替代的、具有成本效益的方法来监测这些指标,其中一种方法是利用农民支付的、由商业实验室进行的土壤测量。虽然与利用政府研究基金进行的测量相比,农民发起的测量要多得多,但前者并不是按照统计设计收集的,因此需要以与后者不同的方式进行分析。农民发起的土壤测量可能不能代表更普遍的土壤,这可能导致与政府资助的研究人员领导的测量相比不同的(有偏见的)结果。我们项目的目的是对农民发起的土壤测量数据和研究主导的测量数据进行比较,以确定区域和国家范围内关键指标平均值的任何差异。我们将使用统计程序,这意味着我们可以在两种类型的数据之间进行一致的比较。如果我们观察到的差异很小,就有可能使用农民发起的调查来监测土壤特性,从而避免未来国家规模的政府资助调查的成本。我们没有接触个别农民,而是获得了使用英国最大的商业农业土壤实验室生成的数据的许可。我们将比较过去十年中两种主要农业土地利用类型(耕地和草地)的农民数据和政府资助的研究数据中关键土壤指标的值。我们将与那些在国家范围内负责土壤政策的政府人员合作,并将我们的研究结果提交给他们。
项目成果
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Are data collected to support farm management suitable for monitoring soil indicators at the national scale?
为支持农场管理而收集的数据是否适合监测全国范围的土壤指标?
- DOI:10.1111/ejss.12417
- 发表时间:2017
- 期刊:
- 影响因子:4.2
- 作者:Rawlins B
- 通讯作者:Rawlins B
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Barry Rawlins其他文献
Landscape‐scale controls on the spatial distribution of caesium 137: A study based on an airborne geophysical survey across Northern Ireland
对铯 137 空间分布的景观尺度控制:基于北爱尔兰航空地球物理调查的研究
- DOI:
- 发表时间:
2011 - 期刊:
- 影响因子:0
- 作者:
Barry Rawlins;C. Scheib;D. Beamish;Richard Webster;Andrew N. Tyler;M. E. Young - 通讯作者:
M. E. Young
Investigating multi-element soil geochemical signatures and their potential for use in forensic studies
研究多元素土壤地球化学特征及其在法医学研究中的应用潜力
- DOI:
10.1144/gsl.sp.2004.232.01.18 - 发表时间:
2004 - 期刊:
- 影响因子:0
- 作者:
Barry Rawlins;Mark Cave - 通讯作者:
Mark Cave
Barry Rawlins的其他文献
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