Single time point sampling of site characteristics, soil parameters and soil greenhouse gas emissions for extensive and intensive sheep-farming sites in North Wales and Devon, 2016

The data pertains to a single time point ‘snapshot’ spatial sampling of site characteristics, soil parameters and soil greenhouse gas emissions for two sites (Extensive and Intensive). The extensively managed site (‘Extensive’; 240-340 m above sea level; a.s.l.) consisted of an 11.5 ha semi-improved, sheep-grazed pasture at Bangor University’s Henfaes Research Station, Abergwyngregyn, North Wales (53°13’13’’N, 4°0’34’’W). The intensively managed site (‘Intensive’; on average 160 m a.s.l.) was a 1.78 ha sheep-grazed pasture located in south-west England, at the North Wyke Farm Platform (NWFP), Rothamsted Research, Okehampton, Devon (50°46’10’’N, 30°54’05’’W). At the Extensive site soil and gas sampling was conducted on 30th November 2016. At the Intensive site soil and gas sampling was conducted on 1st August 2016. The data contains: site characteristics including elevation, slope, compound topographic index, vegetation type or manure application, and sample point grid references; soil parameters including soil bulk density, soil percentage water-filled pore space, soil moisture, soil organic matter contents, soil pH, soil nitrate nitrogen concentration, soil ammonium nitrogen concentration, soil percentage total carbon contents, soil percentage total nitrogen contents, and carbon to nitrogen content ratio; and soil greenhouse gas flux data for nitrous oxide, carbon dioxide and methane. The study was conducted as a wider part of the NERC funded Uplands-N2O project and BBSRC-supported Rothamsted Research, North Wyke Farm Platform (Grant Nos: NE/M015351/1, NE/M013847/1, NE/M013154/1, BBS/E/C/000J0100, BBS/E/C/000I0320, BBS/E/C/000I0330). Quantifying the spatial and variability of the drivers of greenhouse gas emissions and their interactions in grazing systems is critical to improve our understanding of nitrous oxide, carbon dioxide and methane fluxes, enabling better estimates of aggregated greenhouse gas emissions and associated uncertainties at the landscape scale.

本数据集针对两个试验站点（集约型与粗放型）的站点特征、土壤参数及土壤温室气体排放开展了单次时间点的“快照式”空间采样。粗放管理站点（下称“粗放站点”；海拔240~340米）位于威尔士北部阿伯温格林的班戈大学亨法斯研究站，为一片面积11.5公顷的半改良绵羊放牧牧场，地理坐标为53°13’13’’N，4°0’34’’W。集约管理站点（下称“集约站点”；平均海拔160米）位于英格兰西南部德文郡奥克汉普顿的洛桑研究所（Rothamsted Research）北怀克农场平台（North Wyke Farm Platform, NWFP），为一片面积1.78公顷的绵羊放牧牧场，地理坐标为50°46’10’’N，30°54’05’’W。粗放站点的土壤与气体采样于2016年11月30日开展，集约站点的土壤与气体采样则于2016年8月1日完成。本数据集涵盖三类核心内容：其一为站点特征数据，包括海拔、坡度、复合地形指数、植被类型或粪肥施用情况，以及采样点网格坐标；其二为土壤参数数据，涵盖土壤容重、土壤充水孔隙度百分比、土壤含水率、土壤有机质含量、土壤pH值、土壤硝态氮浓度、土壤铵态氮浓度、土壤总碳百分比含量、土壤总氮百分比含量及碳氮比；其三为土壤温室气体通量数据，涉及一氧化二氮、二氧化碳及甲烷。本研究是自然环境研究委员会（Natural Environment Research Council, NERC）资助的Uplands-N2O项目，以及生物技术与生物科学研究理事会（Biotechnology and Biological Sciences Research Council, BBSRC）支持的上述洛桑研究所北怀克农场平台项目的重要组成部分，相关资助编号为：NE/M015351/1、NE/M013847/1、NE/M013154/1、BBS/E/C/000J0100、BBS/E/C/000I0320、BBS/E/C/000I0330。量化放牧系统中温室气体排放驱动因子的空间变异及其交互作用，对于深化我们对一氧化二氮、二氧化碳及甲烷通量的理解至关重要，同时可助力提升景观尺度下总温室气体排放估算及其相关不确定性的评估精度。