Landscape linear feature data 1990 [Countryside Survey]

This dataset consists of stock (length) data for landscape linear features across Great Britain in 1990. Data are presented as lengths of different feature categories (such as fences, walls and lines of trees), with associated species attributes, from 506 km squares, surveyed for the Countryside Survey long term monitoring project (note: not all surveyed squares contained linear features). The Countryside Survey is a unique study or 'audit' of the natural resources of the UK's countryside, carried out by the Centre for Ecology & Hydrology. The sample sites are chosen from a stratified random sample, based on a 15 by 15 km grid of GB. Surveys have been carried out in 1978, 1984, 1990, 1998 and 2007 with repeated visits to the majority of squares. 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. In addition to linear features, habitat areas, vegetation species plot, soil plot, freshwater habitat and satellite map data are also produced by Countryside Survey. Full details about this dataset can be found at https://doi.org/10.5285/311daad4-bc8c-485a-bc8a-e0d054889219

本数据集收录了1990年大不列颠地区景观线性特征（如栅栏、墙体及树木行列）的股票（长度）数据。数据以不同特征类别的长度（例如：栅栏、墙体和树木行列）以及相应的物种属性呈现，源自于506个平方公里方格内的调查数据，这些方格构成了乡村调查长期监测项目的一部分（注：并非所有调查方格均包含线性特征）。乡村调查是一项独特的关于英国乡村自然资源的研究或‘审计’，由生态与水文研究中心执行。样本地点从基于大不列颠15公里×15公里网格的分层随机样本中选取。调查分别在1978年、1984年、1990年、1998年和2007年进行，其中大多数方格均接受了重复访问。通过严格的科学方法对乡村进行采样和调查，使得我们能够将新结果与先前调查结果进行对比。以此方式，我们可以探测到英国乡村随着时间的推移所发生的逐渐而微妙的变化。除了线性特征外，乡村调查还产生了栖息地面积、植被物种图块、土壤图块、淡水栖息地以及卫星地图数据。有关本数据集的详细信息，请参阅https://doi.org/10.5285/311daad4-bc8c-485a-bc8a-e0d054889219。