Modeling desorption kinetics of the native and applied zinc in biochar-amended calcareous soils of different land uses

Modeling desorption kinetics of the native and applied zinc in biochar-amended calcareous soils... Soil components including organic matter (OM) are of vital importance in sorption/desorption kinetics of potentially toxic trace elements (PTEs), e.g., zinc (Zn). Nowadays, biochars as a source of OM have received increased attention because of their potential for improving soil properties. Effect of wheat straw biochar (0, 1.5 and 3% w/w) and zinc levels (0 and 10 mg Zn kg−1 soil as ZnSO4·7H2O) on Zn desorption kinetics was evaluated in an incubation experiments with agricultural, rangeland and forest soils. There was a rapid desorption rate during the first 2 h, followed by a slower rate during the next 14 h in all soil types. High rates of Zn desorption were observed in Zn-treated soils. In all soil types, biochar reduced Zn desorption, whereas, Zn increased it. The highest amounts of Zn desorption in both no Zn-treated and Zn-treated soils corresponded to the forest soil followed by the rangeland and agricultural soils. The simple Elovich and two-constant rate models were the best models to describe Zn desorption from the soils. Biochar decreased the release of Zn to the soil solutions. Therefore, it may reduce the probable excessive amount of Zn uptake by plant root, transfer to food chain, Zn leaching to surface and subsurface waters and their possible risks to human health. These issues should be considered in management practices for different land uses under various Zn application strategies. Furthermore, evaluation of other levels/sources of biochar and Zn on desorption kinetics of Zn in soils of various land use types is recommended. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Environmental Earth Sciences Springer Journals

Modeling desorption kinetics of the native and applied zinc in biochar-amended calcareous soils of different land uses

Loading next page...
 
/lp/springer_journal/modeling-desorption-kinetics-of-the-native-and-applied-zinc-in-biochar-08BtRxLkUI
Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by Springer-Verlag GmbH Germany
Subject
Earth Sciences; Geology; Hydrology/Water Resources; Geochemistry; Environmental Science and Engineering; Terrestrial Pollution; Biogeosciences
ISSN
1866-6280
eISSN
1866-6299
D.O.I.
10.1007/s12665-017-6895-z
Publisher site
See Article on Publisher Site

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial