Next Article in Journal
Phenotypic Plasticity Explains Response Patterns of European Beech (Fagus sylvatica L.) Saplings to Nitrogen Fertilization and Drought Events
Next Article in Special Issue
The Role of Respiration in Estimation of Net Carbon Cycle: Coupling Soil Carbon Dynamics and Canopy Turnover in a Novel Version of 3D-CMCC Forest Ecosystem Model
Previous Article in Journal
Tree Species Identity Shapes Earthworm Communities
Previous Article in Special Issue
Partitioning Forest‐Floor Respiration into Source  Based Emissions in a Boreal Forested Bog: Responses  to Experimental Drought
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Forests 2017, 8(3), 90; doi:10.3390/f8030090

Climate Impacts on Soil Carbon Processes along an Elevation Gradient in the Tropical Luquillo Experimental Forest

1
Department of Biology, University of Puerto Rico-Río Piedras, San Juan, PR 00936, USA
2
Department of Environmental Sciences, University of Puerto Rico-Río Piedras, San Juan, PR 00936, USA
3
USDA Forest Service, International Institute of Tropical Forestry, 1201 Ceiba Street, Río Piedras, PR 00926, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Robert Jandl and Mirco Rodeghiero
Received: 14 January 2017 / Revised: 11 March 2017 / Accepted: 13 March 2017 / Published: 19 March 2017
(This article belongs to the Special Issue Forest Soil Respiration under Climate Changing)
View Full-Text   |   Download PDF [1856 KB, uploaded 19 March 2017]   |  

Abstract

Tropical forests play an important role in regulating the global climate and the carbon cycle. With the changing temperature and moisture along the elevation gradient, the Luquillo Experimental Forest in Northeastern Puerto Rico provides a natural approach to understand tropical forest ecosystems under climate change. In this study, we conducted a soil translocation experiment along an elevation gradient with decreasing temperature but increasing moisture to study the impacts of climate change on soil organic carbon (SOC) and soil respiration. As the results showed, both soil carbon and the respiration rate were impacted by microclimate changes. The soils translocated from low elevation to high elevation showed an increased respiration rate with decreased SOC content at the end of the experiment, which indicated that the increased soil moisture and altered soil microbes might affect respiration rates. The soils translocated from high elevation to low elevation also showed an increased respiration rate with reduced SOC at the end of the experiment, indicating that increased temperature at low elevation enhanced decomposition rates. Temperature and initial soil source quality impacted soil respiration significantly. With the predicted warming climate in the Caribbean, these tropical soils at high elevations are at risk of releasing sequestered carbon into the atmosphere. View Full-Text
Keywords: soil respiration; tropical forest; soil translocation experiment; elevation gradient; climate change soil respiration; tropical forest; soil translocation experiment; elevation gradient; climate change
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Chen, D.; Yu, M.; González, G.; Zou, X.; Gao, Q. Climate Impacts on Soil Carbon Processes along an Elevation Gradient in the Tropical Luquillo Experimental Forest. Forests 2017, 8, 90.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Forests EISSN 1999-4907 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top