Data from: Multiple global change factors alter the scaling of nitrogen to phosphorus in alpine plants
Data files
May 30, 2025 version files 47.43 KB
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Li_et_al_FE_data.csv
42.58 KB
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README.md
4.84 KB
Abstract
The stoichiometry and allometry of nitrogen (N) and phosphorus (P) reflect plant nutrient absorption and dynamic allocation. They can be regulated by global change factors (e.g., climate warming, nitrogen enrichment, and altered precipitation). Yet, how multiple global change factors act interactively to influence the stoichiometric characteristics of N and P and their scaling relationships in different plant organs remains poorly understood. In a field experiment with treatments of nitrogen addition (Nadd), warming (W), and reduced precipitation (Pr) in an alpine meadow, we examined how global change factors interact to alter N and P stoichiometric characteristics of leaves and seeds. An allometry model (i.e., N = βPα) was employed to detect changes in the scaling of plant N to P under different treatments. Our results showed that nitrogen addition significantly increased leaf N concentration (+44.0 %), seed N concentration (+16.9 %) and leaf N : P ratios (+27.8 %) under ambient temperatures and significantly increased leaf N concentration (+53.7 %) and leaf N : P ratios (+46.4 %) under ambient precipitation. Importantly, nitrogen addition and warming/reduced precipitation had synergistic effects on P concentration of leaves and seeds, and antagonistic effects on N : P ratios of leaves. Moreover, although none of the three global change factors individually altered the scaling of N to P, nitrogen addition interacted with warming or with reduced precipitation to decrease the scaling exponents in leaves and increased them in seeds. Our results suggest that multiple global change factors can alter the N and P allocation patterns and result in a decoupling of N and P in different plant organs. These findings highlight the importance of considering interactions of multiple factors when predicting dynamic changes in plant stoichiometric characteristics and nutrient utilization strategies under global change scenarios.
GENERAL INFORMATION
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Title of Dataset:
Data from: Multiple global change factors alter the scaling of nitrogen to phosphorus in alpine plants -
Author Information
Co-investigator 1
Name: Jiapu Li
Institution: College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaCo-investigator 2
Name: Xuebin Yan
Institution: College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaCo-investigator 3
Name: Pinwei Zhang
Institution: College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaCo-investigator 4
Name: Zhonghui Zhuo
Institution: College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaCo-investigator 5
Name: Xiaoyi Wang
Institution: College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaCo-investigator 6
Name: Kailing Huang
Institution: College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaCo-investigator 7
Name: Peng Wang
Institution: College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaCo-investigator 8
Name: Xianhui Zhou
Institution: State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, Gansu 730000, ChinaCo-investigator 9
Name: Miaojun Ma
Institution: State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou, Gansu 730000, ChinaCorresponding Investigator
Name: Yanwen Zhao
Institution: College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
Email: ywzhao@njau.edu.cnCorresponding Investigator
Name: Hui Guo
Institution: College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
Email: hui.guo@njau.edu.cn -
Date of data collection:
2022 -
Geographic location of data collection:
at the eastern Tibetan Plateau (33°38′N, 101°53′E) of Maqu county, Gansu Province, China -
Recommended citation for this dataset:
Li, Jiapu et al. (2025), Data from: Multiple global change factors alter the scaling of nitrogen to phosphorus in alpine plants, Dryad, Dataset.
DATA OVERVIEW
Description of dataset:
These data were about plant nutrient concentrations and soil properties data under nitrogen addition, warming and reduced precipitation treatments.
DATA-SPECIFIC INFORMATION FOR: Li_et_al_FE_data.csv
- Number of cases/rows: 384 and variables are as follows:
- Plot: ID of 32 treatment plots
- Treatment: treatments of 32 plots; CK-control, N-nitrogen addition, W-warming, Pr-reduced precipitation, NW-combination of nitrogen addition and warming, NPr-combination of nitrogen addition and reduced precipitation, NWPr-combination of nitrogen addition, warming, and reduced precipitation
- Nitrogen_addition: whether this plot was treated with nitrogen addition; no-no nitrogen was added, yes-nitrogen was added
- Warming: whether this plot was treated with warming, no-no warming, or yes warming
- Nitrogen_addition: whether this plot was treated with reduced precipitation; no-no reduced precipitation, yes-reduced precipitation
- Block: the experiment is a randomized block design and there are 4 blocks/replications.
- Species: name of the species that we studied in this experiment
- Organ: the organs of a plant that we studied in this experiment
- Nitrogen(mg g-1): plant nitrogen concentration in each plot
- Phosphorus(mg g-1): plant phosphorus concentration in each plot
- N:P_ratios: plant nitrogen and phosphorus ratios in each plot
- Soil_available_nitrogen(mg kg-1): soil available nitrogen concentration in each plot
- Soil_available_phosphorus(mg kg-1): soil available phosphorus concentration in each plot
- Soil_available_N:P_ratios: soil available nitrogen and phosphorus ratios in each plot
- Soil_pH: soil pH value in each plot
- Missing data codes:
'null' represent missing values, cause by varied plant diversity across sampling plots resulted in no plant material available for collection in those specific areas - Abbreviations used:
CK: control; N: nitrogen; W: warming; Pr: reduced precipitation; P: phosphorus - Other relevant information:
None of the species included in the dataset are considered vulnerable or endangered.