Soil water release curves and hydraulic conductivity measurements at four long-term grassland-to-woodland land use contrasts across England

This dataset contains soil water release curves and un-saturated hydraulic conductivity measurements from four long-term grassland-to-woodland land use contrasts across England between 2018 and 2021. Each land use contrast was assigned one grassland and one woodland plot respectively. 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 four grassland-to-woodland contrasts were located across England and sampled once : Gisburn (Gisburn-1, Gisburn-2), Wytham Woods, and Kielder Forest. Soil water release curves were measured for topsoil (0-5 cm) using the HYPROP system (UMS, Munich, Germany). Soil water infiltration (unsaturated hydraulic conductivity) was measured during soil sampling campaigns. Soil hydraulic measurements in this dataset are collocated with aboveground biomass production estimates and litter layer depth measurements, soil physical, chemical and biological properties (0-1 m), and earthworm counts and identification. A file is provided to connect all co-located measurements. This project was part of the UK-SCAPE programme which started in 2018 and was funded by the Natural Environment Research Council as National Capability (award number NE/R016429/1).

本数据集汇聚了英格兰四组长期草地向林地土地利用转换过程中的土壤水分释放曲线及非饱和土壤水力传导率测量数据，时间跨度为2018年至2021年。每组土地利用转换分别对应一块草地和一块林地。每块地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和网格6相距最远。四组草地至林地的对比分别位于英格兰境内，并进行了单次采样：Gisburn（Gisburn-1，Gisburn-2）、Wytham Woods和Kielder Forest。利用HYPROP系统（UMS，慕尼黑，德国）对表层土壤（0-5厘米）进行了水分释放曲线的测量。土壤水分入渗（非饱和土壤水力传导率）的测量是在土壤采样活动中进行的。本数据集中的土壤水力测量数据与地上生物量产量估算、凋落层深度测量、土壤物理、化学及生物学性质（0-1米）、蚯蚓计数及鉴定数据同步采集。提供了一份文件，用以关联所有同步测量的数据。该项目是始于2018年的UK-SCAPE项目的一部分，该项目由英国自然环境研究委员会作为国家能力项目资助（资助编号NE/R016429/1）。