Agricultural Land Classification detailed Post 1988 survey ALCC00397

Survey name: Downham Market, Crimplesham Quarry Post 1988 Agricultural Land Classification (ALC) site survey data – scanned original paper maps and survey reports for individual sites surveyed in detail between 1989 and 1999 by the Ministry of Agriculture Fisheries and Food. Where Grade 3 is mapped this includes the subdivision of Grade 3 into subgrades 3a and 3b. Surveys use the current grading methodology as described in "Agricultural Land Classification of England and Wales," a link for which is provided with the data. Individual sites have been mapped at varying scales and level of detail from 1:5,000 to 1:50,000 (typically 1:10,000). Unedited sample point soils data and soil pit descriptions are also available for some surveys. Attribution statement: © Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right [year]. Attribution statement: © Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right [year].调查名称：唐厄姆市场、克里姆普尔沙姆采石场 1988年后农业土地分类（Agricultural Land Classification, ALC）场地调查数据——包含由英国农业、渔业与食品部在1989至1999年间对各详细调研场地扫描得到的原始纸质地图与调查报告。若场地标注为三级农用地，则数据包含将三级农用地细分为3a与3b亚级的内容。本次调查采用《英格兰与威尔士农业土地分类》中所述的现行分级方法，数据中附带该文献的链接。各调研场地的制图比例尺与细节详略程度存在差异，覆盖范围为1:5000至1:50000，通常采用1:10000的比例尺。部分调查还提供未经编辑的采样点土壤数据与土壤坑剖面描述。 署名声明：© 自然英格兰（Natural England）版权所有。包含英国地形测量局（Ordnance Survey）数据，© 皇家版权与数据库权利[年份]。署名声明：© 自然英格兰（Natural England）版权所有。包含英国地形测量局（Ordnance Survey）数据，© 皇家版权与数据库权利[年份]。