Samford Ecological Research Facility Flux Data Release 2022_v2

This release consists of flux tower measurements of the exchange of energy and mass between the surface and the atmospheric boundary-layer using eddy covariance techniques. Data were processed using PyFluxPro (v3.4.7) as described by Isaac et al. (2017). PyFluxPro produces a final, gap-filled product with Net Ecosystem Exchange (NEE) partitioned into Gross Primary Productivity (GPP) and Ecosystem Respiration (ER).

Samford flux station is situated on an improved (Paspalum dilatum) pasture in the humid subtropical climatic region of coastal south-east Queensland. Located only 20 km from the centre of Brisbane city, Samford Valley provides an ideal case study to examine the impact of urbanisation and land use change on ecosystem processes. The valley covers an area of some 82 km2 and is drained in the southern regions by the Samford creek, which extends some 13 km to Samford Village and into the South Pine River. The Samford Valley is historically a rural area experiencing intense urbanisation, with the population increasing almost 50% in the 10 years to 2006 (Morton Bay Regional Council, 2011). Within the Samford valley study region, the Samford Ecological Research Facility (SERF) not only represents a microcosm of current and historical land uses in the valley, but provides a unique opportunity to intensively study various aspects of ecosystem health in a secure, integrated and long term research capacity. Mean annual minimum and maximum temperatures at a nearby Bureau of Meteorology site are 13.1 °C and 25.6 °C respectively while average rainfall is 1102 mm.

本数据集包含采用涡度协方差技术（eddy covariance）获取的地表与大气边界层间能量与物质交换通量塔观测数据。数据按照Isaac等人（2017年）的方法，使用PyFluxPro（v3.4.7）进行处理。PyFluxPro可生成经过间隙填充的最终数据集，将净生态系统交换量（Net Ecosystem Exchange, NEE）划分为总初级生产力（Gross Primary Productivity, GPP）与生态系统呼吸（Ecosystem Respiration, ER）。

萨姆福德通量站（Samford flux station）设于昆士兰州东南部沿海湿润亚热带气候区的一处改良的（Paspalum dilatum）牧场中。该站点距布里斯班市中心仅20公里，萨姆福德谷（Samford Valley）为探究城市化与土地利用变化对生态系统过程的影响提供了理想的研究案例。该谷面积约82平方公里，南部区域由萨姆福德溪（Samford creek）汇流排水，该溪流全长约13公里，流经萨姆福德村后注入南派恩河（South Pine River）。萨姆福德谷历史上为乡村区域，目前正经历快速城市化，截至2006年的十年间人口增长近50%（莫顿湾区域议会，2011年）。在萨姆福德谷研究区域内，萨姆福德生态研究设施（Samford Ecological Research Facility, SERF）不仅是该谷当前与历史土地利用的缩影，更为在安全、集成且长期的研究框架下深入探究生态系统健康的多个维度提供了独特契机。邻近的澳大利亚气象局（Bureau of Meteorology）站点观测显示，该区域年平均最低气温为13.1℃，年平均最高气温为25.6℃，年平均降雨量为1102毫米。