Rapid positive response of young trees growth to warming reverses nitrogen loss from subtropical soil
Data files
Feb 01, 2024 version files 109.57 KB
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Dataset_for_FE.xlsx
102.78 KB
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README.md
6.80 KB
Abstract
- Global warming is widely expected to alter nitrogen (N) cycling in terrestrial ecosystems by accelerating N transformations in soils. However, it is unclear how warming will affect plant–soil N cycling in subtropical ecosystems.
- Here, we measured the N transformations including net ammoniation, nitrification, nitrous oxide emissions, and nitrate in soil solution throughout the plant–soil continuum with two years of experimental soil warming (+5 °C) in a young subtropical Chinese fir mesocosm. Seasonal variations of soil and plant (foliage and root) N concentrations and isotopes (δ15N), foliar water use efficiency, and arbuscular mycorrhizal colonization rate were measured.
- Soil warming significantly increased net ammoniation and nitrification of the soil, together with the transient positive response observed in inorganic N of the soil. Warming increased nitrate N fluxes in soil solution and nitrous oxide emissions in the first year but not in the second year, suggesting N losses through leaching and gaseous in the initial period of warming. Warming primarily induced enrichment of 15N in foliage relative to the soil, which was attributed to the trade-offs of persistent increases in plant N uptake caused by enhanced tree growth and a decrease in N losses with continuous warming.
- Warming significantly increased arbuscular mycorrhizal colonization and foliar water use efficiency throughout the warming period. These results suggest that young trees’ growth and N uptake can rapidly acclimate to warming by mechanisms including increases in plant water use efficiency and mycorrhizal colonization.
- Our findings highlight that warming accelerates the plant–soil N cycle and promotes young trees’ growth and N uptake, which in turn reduces soil N lost from this subtropical ecosystem. Therefore, our study suggests that the competition for N between plants and microbes governs whether subtropical forests are opened or closed N cycle systems under climate warming. We highlight that young trees can still maintain their high productivity in facing future climate warming since warming can improve plant N uptake and reduce N loss from subtropical ecosystems.
README
- File name:README_Dataset
- Title of Dataset: Data from: Rapid positive response of young trees growth to warming reverses nitrogen loss from subtropical forest soils
- Dataset DOI: 10.5061/dryad.g79cnp5xd
- Authors: Maokui Lyu
- Email: 228lmk@163.com
- Address: num. 32 in Qishan Road, Fujian Normal University, Minhou country, Fuzhou, 350007.
- Other contributors: Shidong Chen, Qiufang Zhang, Zhijie Yang, Jinsheng Xie*, Chao Wang, Xiaohong Wang, Xiaofei Liu, Decheng Xiong, Chao Xu, Weisheng Lin, Guangshui Chen, Yuehmin Chen*, Yusheng Yang
- Organization: Fujian Sanming Forest Ecosystem National Observation and Research Station, School of Geographical Sciences, Fujian Normal University.
- Date created: 2024-01-28
*Contributor ORCID IDs
Maokui Lyu: https://orcid.org/0000-0002-9567-2170
Acknowledgements
- Funding sources: The research was funded by the National Natural Science Foundation of China (No. 31930071, 32192433, and 32001169)
Methodological Information
- Methods of data collection/generation: see article for details
- Geographic locations of data collection: Sanming, Fujian, China
Description of the data and file structure
- This dataset has one EXCEL. xlsx file with 9 sheets supporting the figures in the article.
- Description of the treatment There are two treatments in this dataset: Control, Warming treatment
*For abbreviations of variables in the sheet named Figure 1a
Abbreviation | Description | Units |
---|---|---|
Average Temperature | Daily averaged air temperature | ℃ |
Rainfall | Daily rainfall | mm |
*For abbreviations of variables in the sheet named Figure 1b
Abbreviation | Description | Units |
---|---|---|
Soil Temperature in control | Daily averaged soil temperature in Control treatment | ℃ |
Soil Temperature in Warmed | Daily averaged soil temperature in Warming treatment | ℃ |
△Temperature | The temperature differences between Control and Warming | ℃ |
*For abbreviations of variables in the sheet named Figure 1c
Abbreviation | Description | Units |
---|---|---|
Soil Moisture in control | Daily averaged soil moisture in Control treatment | % |
Soil Moisture in Warmed | Daily averaged soil moisture in Warming treatment | % |
△Moisture | The moisture differences between Control and Warming | % |
*For abbreviations of variables in the sheet named Figure 2
Abbreviation | Description | Units |
---|---|---|
Control | Ambient temperature treatment | unitless |
Warmed | Soil warming treatment | unitless |
se | Standard Error of treatments | unitless |
Details: The units for Net ammoniation and nitrification is ug N g-1 resin d-1; the units for N2O emission is ug N m-2 h-1; the units for fluxes of NO3- in soil solution is mg.
*For abbreviations of variables in the sheet named Figure 3
Abbreviation | Description | Units |
---|---|---|
Control | Ambient temperature treatment | unitless |
Warmed | Soil warming treatment | unitless |
se | Standard Error of treatments | unitless |
NH4+-N | ammonium nitrogen | mg kg-1 |
NO3- | nitrate | mg kg-1 |
DON | dissolved organic nitrogen | mg kg-1 |
MBN | microbial biomass nitrogen | mg kg-1 |
Details: The units for all indexs are the same, that is mg kg-1.
*For abbreviations of variables in the sheet named Figure 4
Abbreviation | Description | Units |
---|---|---|
Control | Ambient temperature treatment | unitless |
Warmed | Soil warming treatment | unitless |
Foliar N | Foliar nitrogen content | g kg-1 |
Foliar δ15N | 15N abundance in leaf | ‰ |
Soil N | Soil nitrogen content | g kg-1 |
Soil δ15N | 15N abundance in soil | ‰ |
Root N | Root nitrogen content | g kg-1 |
Root δ15N | 15N abundance in root | ‰ |
*For abbreviations of variables in the sheet named Figure 5
Abbreviation | Description | Units |
---|---|---|
NAG | β-1,4-N-acetylglucosaminidase | nmol ug-1 microbial biomass carbon h-1 |
AMF | Arbuscular mycorrhizal fungi | nmol g-1 soil |
Mycorrihiza Colonation | The colonation rate of arbuscular mycorrhizal in roots | % |
Control | Ambient temperature treatment | unitless |
Warmed | Soil warming treatment | unitless |
se | Standard Error | unitless |
*For abbreviations of variables in the sheet named Figure 6a
Abbreviation | Description | Units |
---|---|---|
Foliar iWUE | foliar intrinsic water use efficiency | umol mol-1 |
Control | Ambient temperature treatment | unitless |
Warmed | Soil warming treatment | unitless |
se | Standard Error | unitless |
*For abbreviations of variables in the sheet named Figure 6b
Abbreviation | Description | Units |
---|---|---|
Control | Tree height in control treatment | cm |
Warmed | Tree height in warming treatment | cm |
se | Standard Error | unitless |
Details: The data is for each year after warming.
Description of the 'Sampling time' for each sheet
We sampled the gas samples every month, and sampled soil samples seasonally.