Cited by 306Bioenergy crop production and managementBiofuel production and bioconversionSoil Carbon and Nitrogen Dynamics

Energy crops and their implications on soil and environment

Blanco‐Canqui, Humberto·2010·Agronomy Journal

Abstract

Interest in producing cellulosic ethanol from renewable energy sources is growing. Potential energy crops include row crops such as corn (Zea mays L.), perennial warm‐season grasses (WSGs), and short‐rotation woody crops (SRWCs). However, impacts of growing dedicated energy crops as biofuel on soil and environment have not been well documented. This article reviews the (i) impacts of growing WSGs and SRWCs on soil properties, soil organic carbon (SOC) sequestration, and water quality, and (ii) performance of energy crops in marginal lands. Literature shows that excessive (≥50%) crop residue removal adversely impacts soil and environmental quality as well as crop yields. Growing WSGs and SRWCs can be potential alternatives to crop residue removal as biofuel. Warm‐season grasses and SRWCs can improve soil properties, reduce soil erosion, and sequester SOC. Crop residue removal reduces SOC concentration by 1 to 3 Mg ha−1 yr−1 in the top 10 cm, whereas growing WSGs and SRWCs increase SOC concentration while providing biofuel feedstocks. The WSGs can store SOC between 0 and 3 Mg C ha−1 yr−1 in the top 5 cm of soil, while the SRWCs can store between 0 and 1.6 Mg ha−1 yr−1 of SOC in the top 100 cm. The WSGs and SRWCs have more beneficial effects on soil and environment when grown in marginal lands than when grown in croplands or natural forests. Indeed, they can grow in nutrient‐depleted, compacted, poorly drained, acid, and eroded soils. Development of sustainable systems of WSGs and SRWCs in marginal lands is a high priority.

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Crossref · 10.2134/agronj2009.0333

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141 of 141 references verified0 citation errors · 0 not checkable

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  • Increasing SOC below the microbially active surface horizon acts to enhance the role of soil as a repository for organic matter as mineralization and loss of C decreases with increasing depth.

    “Increasing SOC, below the microbially active surface horizon acts to enhance the role of soil as a repository for organic matter as mineralization and loss of C decreases with increasing depth (Grigal & Berguson, 1998;Blanco-Canqui, 2010).”

    From Field-scale soil property changes under switchgrass managed for bioenergy (2011) · cites this paper as Blanco-Canqui, 2010

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Authors
Blanco‐Canqui, H.
Affiliations
Kansas State University (US)
Corresponding author
Blanco‐Canqui, Humberto
Venue
Agronomy Journal
Publisher
Wiley
Published
2010-03
Volume
102
Issue
2
Pages
403-419
ISSN
  • 0002-1962 (ISSN-L)
  • 1435-0645
OpenAlex
W1969747525
Cited by
306
References
142
Citations by year
2026: 3 · 2025: 10 · 2024: 11 · 2023: 16 · 2022: 12 · 2021: 16 · 2020: 8 · 2019: 20 · 2018: 16 · 2017: 26 · 2016: 26 · 2015: 24 · 2014: 30 · 2013: 33 · 2012: 29
FWCI
59.82
Type
journal article
Language
en
Open access
closed
Locations
Agronomy Journal (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Bioenergy crop production and management
  • Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
Keywords
energy crops, cellulosic ethanol, biofuels, warm-season grasses, short rotation woody crops, soil organic carbon sequestration, soil erosion, crop residue removal, water quality, marginal land, maize, soil properties

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