Calperum Chowilla Flux Data Release 2021_v1

This data release consists of flux tower measurements of the exchange of energy and mass between the surface and the atmospheric boundary-layer in semi-arid eucalypt woodland using eddy covariance techniques. It been processed using PyFluxPro (v3.3.0) as described in Isaac et al. (2017), https://doi.org/10.5194/bg-14-2903-2017. PyFluxPro takes data recorded at the flux tower and process this data to a final, gap-filled product with Net Ecosystem Exchange (NEE) partitioned into Gross Primary Productivity (GPP) and Ecosystem Respiration (ER). For more information about the processing levels, see https://github.com/OzFlux/PyFluxPro/wiki.

The Calperum Chowilla site was established in July 2010 and is managed by the University of Adelaide (UA), 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 stabilised by mallee (multi-stemmed Eucalypt trees) and various shrubs. It is a semi-arid environment fringing the River Murray floodplains of the Riverland.For additional site information, see http://www.landscapescience.org/.

本数据集发布内容包含利用涡度协方差（eddy covariance）技术，对半干旱桉树林地内地表与大气边界层之间的能量与物质交换开展的通量塔观测数据。该数据已按照Isaac等人（2017年）的研究方法，使用PyFluxPro（v3.3.0）完成处理，相关文献链接：https://doi.org/10.5194/bg-14-2903-2017。PyFluxPro可对通量塔采集的原始数据进行处理，最终生成经间隙填充的数据集，并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）。如需了解更多关于数据处理层级的信息，请访问：https://github.com/OzFlux/PyFluxPro/wiki。

Calperum Chowilla观测站始建于2010年7月，由阿德莱德大学（University of Adelaide, UA）负责管理，作为环境研究所下属项目，由景观未来计划的Wayne Meyer教授与David Chittleborough教授牵头协调。该站点前身为绵羊放牧牧场，现已移除全部牲畜，并作为该类型生态系统的保护区进行管护。区域地势平坦，分布有一系列东西走向的低矮沙丘。这些沙丘为末次干旱时期的遗迹，目前大多已由多茎桉灌丛（mallee，多茎桉属树木）与各类灌丛固定。该区域属于半干旱环境，毗邻里弗兰（Riverland）区域的墨累河漫滩。如需获取更多站点相关信息，请访问：http://www.landscapescience.org/