Calperum Chowilla Flux Data Release 2025_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 (v3.4.21) 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). The Calperum Chowilla site was established in July 2010 and is managed by the University of Adelaide, coordinated by Prof Wayne Meyer and Prof David Chittleborough of the Landscape Futures Program as part of the Environment Institute. This is a former sheep grazing property that has been destocked and is being managed as a conservation area in this type of ecosystem. The landscape is flat with a series of low east–west sand dunes. The dunes are remnants of a previous dry era and are mostly now stabilized by mallee (multi-stemmed Eucalypt trees) and various shrubs. It is a semi-arid environment fringing the River Murray floodplains of the Riverland.本数据集包含采用涡度协方差（eddy covariance）技术获取的地表与大气边界层间能量、物质交换通量塔观测数据。数据按照Isaac等（2017）的处理方法，使用PyFluxPro（v3.4.21）完成预处理。PyFluxPro可生成经过间隙填充的最终数据集，将生态系统净交换（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）。 卡尔佩鲁-乔维拉（Calperum Chowilla）站点于2010年7月设立，由阿德莱德大学（University of Adelaide）管理，作为环境研究所（Environment Institute）下属景观未来项目（Landscape Futures Program）的组成部分，由韦恩·迈耶（Wayne Meyer）教授与戴维·奇特尔伯勒（David Chittleborough）教授牵头协调。该站点前身为牧羊牧场，现已撤去放牧牲畜，作为该类生态系统的保护地进行管护。区域地势平坦，分布有一系列东西走向的低矮沙丘。这些沙丘是过往干旱时期的地貌遗存，目前多数已被马利树（mallee，即多茎桉属树木）与各类灌丛固定。该区域属于毗邻里弗兰（Riverland）墨累河（River Murray）泛滥平原的半干旱生态环境。