Loading content, please wait..
loading..
Logo
Version 3.15
or
Publication Type J
Authors Al Marzooqi, F. and L. F. Yousef
Title Biological response of a sandy soil treated with biochar derived from a halophyte (Salicornia bigelovii)
Source Applied Soil Ecology
Author Keywords Microbial biomass Respiration Saline agriculture Soil enzyme microbial biomass short-term metabolic quotient enzyme-activities land-use carbon mineralization pyrolysis growth torr
Abstract Cultivation of halophytes for food and fuel is highly desirable because these plants can be irrigated with brackish or sea water, and they can be grown on saline non-arable soils. Of particular interest is the high oil seed content halophyte Salicornia bigelovii. The vegetative biomass remaining after harvesting of plant seeds could be used as feedstock for the production of biochar; a product potentially useful for saline agricultural systems. In this study biochar was produced from S. bigelovii biomass (350 degrees C, 6 h) and characterized; pH 8.6; BET surface area 1.72 m(2) g(-1); proximate analysis (29.8% fixed carbon, 27.4% volatiles and 41.1% ash), elemental 0/C and FIX ratios of 0.2 and 0.9 respectively. Treatment: of a sandy soil with 5% (wt.) biochar increased the organic carbon concentration from 10 to 26 g kg(-1) in the soil, and did not affect plant available water. Subsequently, microbial biomass carbon, basal respiration and enzyme activities (beta-glucosidase, acid phosphatase and alkaline phosphatase) were measured over a 30 day period. Higher respiration rates were observed over the course of the incubation study for biochar treated soil (similar to 0.35 mu g CO2-Cg(-1) soil h(-1)) when compared to control soil (similar to 0.05 mu g CO2-Cg(-1)), but similar microbial biomass carbon measurements were found in both soils (similar to 350 mg C Kg(-1) soil). There was also a 1.5 fold increase in S-glucosidase and alkaline phosphatase activities in biochar treated soil when compared to control soil. The results collectively indicate that treatment of soil with S.bigelovii biochar stimulates biological activity and treatment does not appear to have an adverse effect on soil biological processes. Therefore, there is potential for the utility of halophyte derived biochars such as the one used in this study in saline agricultural systems. (C) 2017 Elsevier B.V. All rights reserved.
Author Address [Al Marzooqi, Fatima; Yousef, Lina F.] Masdar Inst Sci & Technol, Dept Chem & Environm Engn, POB 54224, Abu Dhabi, U Arab Emirates. Yousef, LF (reprint author), Masdar Inst Sci & Technol, Dept Chem & Environm Engn, POB 54224, Abu Dhabi, U Arab Emirates. lyousef@masdar.ac.ae
ISSN 0929-1393
ISBN 0929-1393
29-Character Source Abbreviation Appl. Soil Ecol.
Publication Date Jun
Year Published 2017
Volume 114
Beginning Page 9-15
Digital Object Identifier (DOI) 10.1016/j.apsoil.2017.02.012
Unique Article Identifier WOS:000401383400002

LEGAL NOTICES — This website is protected by Copyright © The University of Sussex, 2012, 2013, 2014, 2015, 2016, 2017. The eHALOPH database is protected by Database Right and Copyright © The University of Sussex and other contributors, 2006, 2012, 2013, 2014, 2015, 2016, 2017. This database is based on an earlier work by James Aronson.
THIS WEBSITE AND THIS DATABASE ARE PROVIDED ON AN "AS IS" BASIS, AND YOU USE THEM AND RELY ON THEM AT YOUR OWN RISK.

Contact email: halophytes@sussex.ac.uk
Credits – Tim Flowers, Joaquim Santos, Moritz Jahns, Brian Warburton, Peter Reed