Next Article in Journal
Does Foreign Direct Investment Affect Green Growth? Evidence from China’s Experience
Previous Article in Journal
Regional Competition, Heterogeneous Factors and Pollution Intensity in China: A Spatial Econometric Analysis
Article Menu

Export Article

Open AccessArticle
Sustainability 2016, 8(2), 163; doi:10.3390/su8020163

Emission Laws and Influence Factors of Greenhouse Gases in Saline-Alkali Paddy Fields

1
Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
2
College of Environment and Resources, Jilin University, Changchun 130021, China
3
Engineering College of Jilin University, Changchun 130026, China
*
Author to whom correspondence should be addressed.
Received: 6 November 2015 / Revised: 22 January 2016 / Accepted: 4 February 2016 / Published: 16 February 2016
(This article belongs to the Section Sustainable Agriculture, Food and Wildlife)
View Full-Text   |   Download PDF [1356 KB, uploaded 16 February 2016]   |  

Abstract

The study of greenhouse gas emissions has become a global focus, but few studies have considered saline-alkali paddy fields. Gas samples and saline-alkali soil samples were collected during the green, tillering, booting, heading and grain filling stages. The emission fluxes of CO2, CH4, and N2O as well as the pH, soil soluble salt, available nitrogen, and soil organic carbon contents were detected to reveal the greenhouse gas (GHG) emission laws and influence factors in saline-alkali paddy fields. Overall, GHG emissions of paddy soil during the growing season increased, then decreased, and then increased again and peaked at booting stage. The emission fluxes of CO2 and CH4 were observed as having two peaks and a single peak, respectively. Both the total amount of GHG emission and its different components of CO2, CH4, and N2O increased with the increasing reclamation period of paddy fields. A positive correlation was found between the respective emission fluxes of CO2, CH4, and N2O and the available nitrogen and SOC, whereas a negative correlation was revealed between the fluxes of CO2, CH4, and N2O and soil pH and soil conductivity. The study is beneficial to assessing the impact of paddy reclamation on regional greenhouse gas emissions and is relevant to illustrating the mechanisms concerning the carbon cycle in paddy soils. View Full-Text
Keywords: greenhouse gas; emission law; pH; soil soluble salt; available nitrogen; soil organic carbon; saline-alkali paddy fields; reclaimation period greenhouse gas; emission law; pH; soil soluble salt; available nitrogen; soil organic carbon; saline-alkali paddy fields; reclaimation period
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

Tang, J.; Liang, S.; Li, Z.; Zhang, H.; Wang, S.; Zhang, N. Emission Laws and Influence Factors of Greenhouse Gases in Saline-Alkali Paddy Fields. Sustainability 2016, 8, 163.

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]
Sustainability EISSN 2071-1050 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top