Agricultural Land Classification detailed Post 1988 survey ALCB10189b

Survey name:Exeter, Monkerton, Baker Development
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：埃克塞特、莫克顿、贝克发展
1988年后农业土地利用分类（ALC）现场调查数据——对1989年至1999年间由农业、渔业和食物部详细调查的各单个现场的原版纸质地图和调查报告进行扫描。若图中标注了三级分类，则包括将三级分类细分为3a和3b子级的过程。调查采用了《英格兰和威尔士农业土地利用分类。修订版指导方针及评估农业土地质量分级标准》（MAFF，1988年）中描述的当前分级方法：
http://webarchive.nationalarchives.gov.uk/20130402151656/http:/archive.defra.gov.uk/foodfarm/landmanage/land-use/documents/alc-guidelines-1988.pdf。各单个现场均以不同的比例尺和详细程度进行了绘制，比例尺从1:5,000至1:50,000（通常为1:10,000）。部分调查还提供了未经编辑的样本点土壤数据和土壤坑描述。
归属声明：© 自然英格兰版权所有。包含皇家测量局数据，受皇家版权和数据库权利保护[年份]。