2026-10-14T21:50:17Z https://www.scidb.cn/oai

10.57760/sciencedb.35578 2026-05-07T09:32:10Z

2026-05-07 Plant–soil C:N:P stoichiometry and phosphorus availability data from a vegetation restoration chronosequence in the Pisha sandstone landscape doi:10.57760/sciencedb.35578 en This dataset supports the manuscript entitled “Vegetation restoration reshapes plant–soil C:N:P stoichiometry and phosphorus availability in the Pisha sandstone landscape”. The repository contains the final cleaned analysis-ready dataset and related analysis scripts used for statistical analyses and figure generation.The dataset includes three vegetation restoration stages in the Pisha sandstone landscape, representing 12-, 25-, and 38-year restoration stages. Four independent 50 m × 50 m sampling units were established for each restoration stage, and 30 sampling points were arranged within each sampling unit, resulting in a total of 360 sampling points.The dataset includes plant carbon, nitrogen and phosphorus concentrations, plant C:N, C:P and N:P stoichiometric ratios, soil organic carbon, total nitrogen, total phosphorus, available phosphorus, phosphorus activation coefficient, soil C:N, C:P and N:P stoichiometric ratios, and environmental variables including vegetation cover, litter biomass, soil moisture, bulk density, pH, slope, topographic wetness index, sand content and gravel content.The variables x_m and y_m represent local coordinates within each 50 m × 50 m sampling unit and are not geographic longitude and latitude. Plant and soil C:N:P stoichiometric ratios were calculated on a mass basis. The phosphorus activation coefficient was calculated from the ratio of available phosphorus to total phosphorus, where available phosphorus is expressed in mg kg-1 and total phosphorus is expressed in g kg-1.This dataset can be used to reproduce the statistical analyses, figure generation, and plant–soil nutrient coupling analyses reported in the associated manuscript. Pisha sandstone; vegetation restoration; ecological stoichiometry; phosphorus availability; soil profile; dryland; spatial heterogeneity Zhiqiang Ma Yan Wang Ting Du Hongjie Zhu Yue Li Minghao Huang Feng Du EMBARGO https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank