Countryside Survey 1998 estimates of Broad Habitat areas in Great Britain

This dataset consists of stock (area) data for Broad Habitats across Great Britain in 1998. The data are national estimates generated by analysing the sample data from 569 1km squares and scaling up to a national level. The data are summarized as habitat area per Land Class (areas of similar environmental characteristics). The sample sites are chosen from a stratified random sample, based on a 15 by 15 km grid of GB and using the 'ITE Land Classification' as a method of stratification. The data were collected as part of Countryside Survey, a unique study or 'audit' of the natural resources of the UK's countryside. The Survey has been carried out at regular intervals since 1978. The countryside is sampled and surveyed using rigorous scientific methods, allowing us to compare new results with those from previous surveys. In this way we can detect the gradual and subtle changes that occur in the UK's countryside over time. Surveys have been carried out in 1978, 1984, 1990, 1998 and 2007 with repeated visits to the majority of squares. In addition to habitat areas, vegetation species data, soil data, linear habitat data, and freshwater habitat data are also gathered by Countryside Survey. Full details about this dataset can be found at https://doi.org/10.5285/acbb0f9c-f2a5-4cbd-97c3-84e786f2e479

本数据集收录了1998年大不列颠地区广域生境的股票（面积）数据。数据通过分析来自569个1平方公里网格样本点的数据，并据此扩展至全国范围，形成了国家层面的估计值。数据按土地类别（具有相似环境特征的区域）汇总，以生境面积的形式呈现。样本点采用分层随机抽样的方式选取，基于15x15公里的大不列颠网格，并以‘ITE土地分类法’作为分层方法。这些数据是作为乡村调查的一部分收集的，乡村调查是对英国乡村自然资源的独特研究或审计。自1978年以来，该调查定期进行。通过严格的科学方法对乡村进行抽样和调查，使我们能够将新的调查结果与之前的结果进行比较。通过这种方式，我们可以探测到英国乡村随着时间的推移所发生的渐进性和微妙的变化。调查于1978年、1984年、1990年、1998年和2007年进行，并对大多数网格进行了重复访问。除了生境面积外，乡村调查还收集了植被物种数据、土壤数据、线性生境数据和淡水生境数据。关于本数据集的详细信息，请参阅https://doi.org/10.5285/acbb0f9c-f2a5-4cbd-97c3-84e786f2e479。