A global database of Paired Resorption Efficiency of Nitrogen and Phosphorus (PRENP, Version 1.0)

We complied a global database of Paired Resorption Efficiency of
Nitrogen and Phosphorus (PRENP, Version 1.0) in leaves of terrestrial plants
based on literature surveyed via Web of Science (http://isiknowledge.com),
Google Scholar (https://scholar.google.com) and the China National Knowledge
Infrastructure (http://www.cnki.net). The key words ‘nitrogen resorption’ and
‘phosphorus resorption’ were used to search published studies of leaf NRE and PRE.
Data were included only when NRE and PRE were measured simultaneously. To avoid misattributing natural nutrient limitation due to anthropogenic
disturbances, we excluded data for intensively managed ecosystems (e.g.,
agroforest, fertilized plantations, sown pastures, croplands and urban
forests). Overall, our database includes observations of leaf NRE
and PRE across 171 sites. For each site, we first averaged values of NRE (NRE_dom) and
PRE (PRE_dom) for all reported dominant species, respectively. If
data on several forest stands or grassland plots were reported at the same site,
NRE_dom and PRE_dom were averaged before computing NRE_dom/PRE_dom.
Site-averaged NRE_dom/PRE_domwas then calculated as an indicator
of relative nutrient limitation. Please find more information in the Nature Geoscience paper by Du et al. Author's permission is required to use the dataset.

搜集汇总

背景与挑战

背景概述

该数据集是一个全球叶片氮和磷配对再吸收效率（PRENP）数据库，基于文献调查编译而成，覆盖171个站点，用于评估相对养分限制。数据排除了受人为干扰的生态系统（如农田和城市森林），且使用前需要作者许可。