Next Article in Journal
Sustainable Water Infrastructure Asset Management: A Gap Analysis of Customer and Service Provider Perspectives
Previous Article in Journal
Sustainable Cities and the Contribution of Historical Urban Green Spaces: A Case Study of Historical Persian Gardens
Article Menu

Export Article

Open AccessArticle
Sustainability 2015, 7(10), 13317-13333; doi:10.3390/su71013317

Stabilization of Organic Matter by Biochar Application in Compost-amended Soils with Contrasting pH Values and Textures

1
Department of Soil and Water Conservation, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
2
Department of Agricultural Chemistry, National Taiwan University, Taipei 10617, Taiwan
3
Department of Geography, National Taiwan Normal University, Taipei 10610, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Marc A. Rosen
Received: 17 August 2015 / Revised: 18 September 2015 / Accepted: 24 September 2015 / Published: 29 September 2015
(This article belongs to the Section Sustainable Agriculture, Food and Wildlife)
View Full-Text   |   Download PDF [1687 KB, uploaded 29 September 2015]   |  

Abstract

Food demand and soil sustainability have become urgent concerns because of the impacts of global climate change. In subtropical and tropical regions, practical management that stabilizes and prevents organic fertilizers from rapid decomposition in soils is necessary. This study conducted a short-term (70 days) incubation experiment to assess the effects of biochar application on the decomposition of added bagasse compost in three rural soils with different pH values and textures. Two rice hull biochars, produced through slow pyrolization at 400 °C (RHB-400) and 700 °C (RHB-700), with application rates of 1%, 2%, and 4% (w/w), were separately incorporated into soils with and without compost (1% (w/w) application rate). Experimental results indicated that C mineralization rapidly increased at the beginning in all treatments, particularly in those involving 2% and 4% biochar. The biochar addition increased C mineralization by 7.9%–48% in the compost-amended soils after 70 days incubation while the fractions of mineralized C to applied C significantly decreased. Moreover, the estimated maximum of C mineralization amount in soils treated with both compost and biochar were obviously lower than expectation calculated by a double exponential model (two pool model). Based on the micromorphological observation, added compost was wrapped in the soil aggregates formed after biochar application and then may be protected from decomposing by microbes. Co-application of compost with biochar may be more efficient to stabilize and sequester C than individual application into the studied soils, especially for the biochar produced at high pyrolization temperature. View Full-Text
Keywords: biochar; compost; carbon mineralization; carbon sequestration biochar; compost; carbon mineralization; carbon sequestration
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

Jien, S.-H.; Wang, C.-C.; Lee, C.-H.; Lee, T.-Y. Stabilization of Organic Matter by Biochar Application in Compost-amended Soils with Contrasting pH Values and Textures. Sustainability 2015, 7, 13317-13333.

Show more citation formats Show less citations formats

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