Grass productivity data from a field site in the Conwy Valley (2016)

Data are presented showing grass productivity as grammes per 100 square centimetres under four different nutrient treatments (water, nitrogen, phosphorus and nitrogen & phosphorus combined). An experimental hillslope in the Conwy catchment was selected in August 2016. Three transects, were identified across the hillslope. Along each transect, a 1 x 1 square metre quadrat was used to delineate randomly selected sampling areas. Within each quadrat 5 individual 10 x 10 x 10 centimetre (cm) swards were collected using a spade and transported to the laboratory in Bangor University for the nutrient addition. Three different harvests at different stages (initial cut, first harvest, second harvest) were conducted in order to measure grass productivity. Harvest included removal of all vegetation within the quadrat down to approximately 1 cm in height. The data were collected to identify the nutrient limitations within the hillslope by trained members of staff from Bangor University and the Centre for Ecology & Hydrology. The data were collected for the NERC project 'The Multi-Scale Response of Water quality, Biodiversity and Carbon Sequestration to Coupled Macronutrient Cycling from Source to Sea' (NE/J011991/1). The project is also referred to as Turf2Surf. Full details about this dataset can be found at https://doi.org/10.5285/6e395915-ab5c-43f4-b4de-c9a3c5c1b956

本数据集展示了在四种不同养分处理（水分、氮、磷及氮磷复合）下草地生产力（单位：每100平方厘米克数）的相关数据。实验性小山丘位于康威流域，于2016年8月选定。在小山丘上确定了三条横断面，每条横断面上均使用1 x 1平方米的样方来界定随机选取的采样区域。在每个样方内，采用铲子收集5个10 x 10 x 10厘米（cm）的独立草样，并运送至Bangor大学进行养分添加。在不同阶段（初始割草、第一次收割、第二次收割）进行了三次不同的收割，以测量草地生产力。收割包括将样方内所有植被去除至约1厘米的高度。数据收集旨在通过Bangor大学和生态水文学中心受过专业培训的员工，识别小山丘内的养分限制。这些数据收集是为NERC项目“水质、生物多样性和碳固存对源至海的耦合大量元素循环的多尺度响应”（NE/J011991/1）而进行的，该项目亦被称为Turf2Surf。关于本数据集的详细信息，请查阅https://doi.org/10.5285/6e395915-ab5c-43f4-b4de-c9a3c5c1b956。