Agricultural Land Classification detailed Post 1988 survey ALCB00689

Survey name:Hardwicke
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. Revised guidelines and criteria for grading the quality of agricultural land (MAFF, 1988)":http://webarchive.nationalarchives.gov.uk/20130402151656/http:/archive.defra.gov.uk/foodfarm/landmanage/land-use/documents/alc-guidelines-1988.pdf. 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].

调查名称：Hardwicke 1988年及以后农业土地利用分类（ALC）现场调查数据——扫描原始纸质地图和调查报告，这些地图和报告详细记录了1989年至1999年间由农业、渔业和食物部对个别地点进行的调查。当标注为第三等级时，包括第三等级细分为3a和3b子等级。调查采用了当前分级方法，该方法在《英格兰和威尔士农业土地利用分类。关于评估农业土地利用质量的修订指南和标准（MAFF，1988）》中有所描述（http://webarchive.nationalarchives.gov.uk/20130402151656/http:/archive.defra.gov.uk/foodfarm/landmanage/land-use/documents/alc-guidelines-1988.pdf）：。个别地点的地图绘制尺度各异，详略程度从1:5,000至1:50,000（通常为1:10,000）。某些调查还提供了未经编辑的样本点土壤数据和土壤坑描述。版权声明：© 自然英格兰版权所有。包含军用地形数据，版权所有© 王室版权和数据库权利[年份]。