PSInet: a new global water potential network

作者：Ana Maria Restrepo-Acevedo, Jessica Guo, Steven A. Kannenberg, Michael Benson, Daniel P. Beverly, Renata Diaz, William R. L. Anderegg, Daniel M. Johnson, George W. Koch, Alexandra G. Konings, Lauren E. L. Lowman, Jordi Martínez‐Vilalta, Rafael Poyatos, H. Jochen Schenk, Ashley M. Matheny, Katherine A. McCulloh, Jesse B. Nippert, Rafael S. Oliveira, Kimberly A. Novick · 发表于：Tree Physiology · 年份：2024 · DOI：10.1093/treephys/tpae110 · 被引用次数：15 · 研究领域：Plant Water Relations and Carbon Dynamics、Soil Moisture and Remote Sensing、Tree-ring climate responses

Given the pressing challenges posed by climate change, it is crucial to develop a deeper understanding of the impacts of escalating drought and heat stress on terrestrial ecosystems and the vital services they offer. Soil and plant water potential play a pivotal role in governing the dynamics of water within ecosystems and exert direct control over plant function and mortality risk during periods of ecological stress. However, existing observations of water potential suffer from significant limitations, including their sporadic and discontinuous nature, inconsistent representation of relevant spatio-temporal scales and numerous methodological challenges. These limitations hinder the comprehensive and synthetic research needed to enhance our conceptual understanding and predictive models of plant function and survival under limited moisture availability. In this article, we present PSInet (PSI-for the Greek letter Ψ used to denote water potential), a novel collaborative network of researchers and data, designed to bridge the current critical information gap in water potential data. The primary objectives of PSInet are as follows. (i) Establishing the first openly accessible global database for time series of plant and soil water potential measurements, while providing important linkages with other relevant observation networks. (ii) Fostering an inclusive and diverse collaborative environment for all scientists studying water potential in various stages of their careers. (iii)...