Rapid positive response of young trees growth to warming reverses nitrogen loss from subtropical soil
Cite this dataset
Lyu, Maokui et al. (2024). Rapid positive response of young trees growth to warming reverses nitrogen loss from subtropical soil [Dataset]. Dryad. https://doi.org/10.5061/dryad.g79cnp5xd
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.
Funding
National Natural Science Foundation of China, Award: 31930071
National Natural Science Foundation of China, Award: 32192433
National Natural Science Foundation of China, Award: 32001169