When things get MESI: The Manipulation Experiments Synthesis Initiative—A coordinated effort to synthesize terrestrial global change experiments

作者：Kevin Van Sundert, Sebastian Leuzinger, Martin Karl‐Friedrich Bader, Scott X. Chang, Martin G. De Kauwe, Jeffrey S. Dukes, J. Adam Langley, Zilong Ma, Bertold Mariën, Simon Reynaert, Jingyi Ru, Jian Song, Benjamin D. Stocker, César Terrer, Joshua Thoresen, Eline Vanuytrecht, Shiqiang Wan, Kai Yue, Sara Vicca · 发表于：Global Change Biology · 年份：2023 · DOI：10.1111/gcb.16585 · 被引用次数：27 · 研究领域：Atmospheric and Environmental Gas Dynamics、Soil Carbon and Nitrogen Dynamics、Climate variability and models

Abstract Responses of the terrestrial biosphere to rapidly changing environmental conditions are a major source of uncertainty in climate projections. In an effort to reduce this uncertainty, a wide range of global change experiments have been conducted that mimic future conditions in terrestrial ecosystems, manipulating CO 2 , temperature, and nutrient and water availability. Syntheses of results across experiments provide a more general sense of ecosystem responses to global change, and help to discern the influence of background conditions such as climate and vegetation type in determining global change responses. Several independent syntheses of published data have yielded distinct databases for specific objectives. Such parallel, uncoordinated initiatives carry the risk of producing redundant data collection efforts and have led to contrasting outcomes without clarifying the underlying reason for divergence. These problems could be avoided by creating a publicly available, updatable, curated database. Here, we report on a global effort to collect and curate 57,089 treatment responses across 3644 manipulation experiments at 1145 sites, simulating elevated CO 2 , warming, nutrient addition, and precipitation changes. In the resulting Manipulation Experiments Synthesis Initiative (MESI) database, effects of experimental global change drivers on carbon and nutrient cycles are included, as well as ancillary data such as background climate, vegetation type, treatment magnitude...