Cited by 175Soil Carbon and Nitrogen DynamicsSoil and Unsaturated FlowSoil erosion and sediment transport

Biochar increased water holding capacity but accelerated organic carbon leaching from a sloping farmland soil in China

Liu, Chen, Wang, Honglan, Tang, Xiangyu, Guan, Zhuo, Reid, Brian J., Rajapaksha, Anushka Upamali, Ok, Yong Sik, Sun, Hui·2016·Environmental Science and Pollution Research

Abstract

A hydrologically contained field study, to assess biochar (produced from mixed crop straws) influence upon soil hydraulic properties and dissolved organic carbon (DOC) leaching, was conducted on a loamy soil (entisol). The soil, noted for its low plant-available water and low soil organic matter, is the most important arable soil type in the upper reaches of the Yangtze River catchment, China. Pore size distribution characterization (by N2 adsorption, mercury intrusion, and water retention) showed that the biochar had a tri-modal pore size distribution. This included pores with diameters in the range of 0.1-10 μm that can retain plant-available water. Comparison of soil water retention curves between the control (0) and the biochar plots (16 t ha(-1) on dry weight basis) demonstrated biochar amendment to increase soil water holding capacity. However, significant increases in DOC concentration of soil pore water in both the plough layer and the undisturbed subsoil layer were observed in the biochar-amended plots. An increased loss of DOC relative to the control was observed upon rainfall events. Measurements of excitation-emission matrix (EEM) fluorescence indicated the DOC increment originated primarily from the organic carbon pool in the soil that became more soluble following biochar incorporation.

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Crossref · 10.1007/s11356-015-4885-9

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  • The increase in water holding capacity of biochar amended soils can be used as an indicator of the overall rise in plant available water.

    “Therefore, the increase in water holding capacity (WHC) of biochar amended soils can be used as an indicator of the overall rise in plant available water (Hafeez et al., 2017;Liu et al., 2016).”

    From Biochar implications for sustainable agriculture and environment: A review (2019) · cites this paper as Liu et al., 2016

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Authors
Liu, C., Wang, H., Tang, X., Guan, Z., Reid, B. J., Rajapaksha, A. U., Ok, Y. S., & Sun, H.
Affiliations
  • Chinese Academy of Sciences (CN)
  • University of East Anglia (GB)
  • Kangwon National University (KR)
  • Sichuan University (CN)
Corresponding author
  • Tang, Xiangyu
  • Sun, Hui
Venue
Environmental Science and Pollution Research
Published
2015-06-25
Volume
23
Issue
2
Pages
995-1006
ISSN
  • 0944-1344 (ISSN-L)
  • 1614-7499
OpenAlex
W754238945
Cited by
175
References
44
Citations by year
2026: 10 · 2025: 13 · 2024: 20 · 2023: 15 · 2022: 30 · 2021: 17 · 2020: 22 · 2019: 19 · 2018: 14 · 2017: 8 · 2016: 6 · 2015: 1
FWCI
13.24
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science and Pollution Research (publishedVersion)
  • PubMed (publishedVersion)
  • UEA Digital Repository (University of East Anglia) (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Engineering › Civil and Structural Engineering › Soil and Unsaturated Flow
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil erosion and sediment transport
Keywords
biochar, dissolved organic carbon leaching, soil water holding capacity, soil hydraulic properties, pore size distribution, soil water retention, crop straw, Entisol, sloping farmland, rainfall-runoff, fluorescence excitation-emission matrix
MeSH terms
Adsorption, Carbon, Charcoal, China, Soil, Groundwater

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