Soil physical, chemical, and biological properties (0-1 m) at five long-term grassland-to-woodland land use contrasts across England, 2018-2019

This dataset contains soil chemical, physical and biological properties for up to six soil layers between 0 and 100 cm, measured once at each of the five long-term grassland-to-woodland land use contrasts across England between November 2018 and March 2019. Each of the plots was further divided into three grids (grassland grids 1 to 3 / woodland grids 4 to 6) with grids 1 and 6 being the furthest apart. The contrast boundary is between grids 3 and 4. In each plot, nine sampling locations were randomly sampled (three in each grid). The five grassland-to-woodland contrasts were located across England: Gisburn (Gisburn-1, Gisburn-2), Alice Holt, Wytham Woods, and Kielder Forest. Common soil physical and chemical properties were measured; field water content, soil water content, electrical conductivity, bulk density, pH in DIW, pH in CaCl2, Loss-on-ignition, total soil carbon, total soil nitrogen, and total soil phosphorus. Less common properties were also measured; extractable soil nitrogen, dissolved organic carbon, soil aggregate sizes, and soil texture. And for specific soil cores these additional following properties were measured; soil density fractions and their carbon and nitrogen contents, cation exchange capacity, Sodium concentration, potassium concentration, calcium concentration, magnesium concentration, and extracellular enzyme activities. Derived metrics resulting from the bioinformatic processing of the raw sequence files are provided as part this dataset. The properties in this dataset are co-located with ANPP estimates, litter layer depth measurements, soil hydraulic measurements (soil water release curves and hydraulic conductivity), earthworm counts and identification. A file is provided to connect all co-located measurements. Full details about this dataset can be found at https://doi.org/10.5285/8a2451f8-7999-47c4-9e2a-8e9567377ffb

本数据集收录了英格兰五处长期草地至林地土地利用转换对比区域（2018年11月至2019年3月间测量）的0至100厘米深度范围内土壤的化学、物理及生物学特性，涉及多达六层土壤。每一地块均被进一步划分为三个网格（草地网格1至3/林地网格4至6），其中网格1与网格6相距最远，网格3与网格4之间为对比边界。在每个地块中，随机选取了九个采样点（每个网格三个）。英格兰境内的五处草地至林地对比区域包括：吉斯伯恩（吉斯伯恩-1，吉斯伯恩-2）、爱丽丝霍尔特、威瑟姆森林和基尔德森林。测量了常见的土壤物理和化学性质，包括田间含水量、土壤含水量、电导率、体积密度、去离子水中的pH值、CaCl2中的pH值、灼烧失重、土壤碳总量、土壤氮总量和土壤磷总量。此外，还测量了较少见的性质，如可提取土壤氮、溶解有机碳、土壤团聚体大小和土壤质地。对于特定土壤样本，还测量了土壤密度分数及其碳氮含量、阳离子交换能力、钠浓度、钾浓度、钙浓度、镁浓度和细胞外酶活性。本数据集还提供了由原始序列文件生物信息学处理得出的衍生指标。该数据集中的特性与净初级生产力估算值、凋落层深度测量值、土壤水力测量值（土壤水分释放曲线和水力传导率）、蚯蚓计数及鉴定数据相匹配。提供了一份文件以连接所有匹配的测量数据。关于本数据集的详细信息可在以下链接找到：https://doi.org/10.5285/8a2451f8-7999-47c4-9e2a-8e9567377ffb。