Home About Browse Search
Svenska


How does tillage intensity affect soil organic carbon? A systematic review protocol

Haddaway, Neal R. and Hedlund, Katarina and Jackson, Louise E and Kätterer, Thomas and Lugato, Emanuele and Thomsen, Ingrid K. and Bracht Jørgensen, Helene and Isberg, Per-Erik (2016). How does tillage intensity affect soil organic carbon? A systematic review protocol. Environmental Evidence. 5:1, 1-8
[Article Review/Survey]

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution.

1MB

Abstract

Background
Soils contain the greatest terrestrial carbon (C) pool on the planet. Since approximately 12% of soil C is held in cultivated soils, management of these agricultural areas has a huge potential to affect global carbon cycling; acting sometimes as a sink but also as a source. Tillage is one of the most important agricultural practices for soil management and has been traditionally undertaken to mechanically prepare soils for seeding and minimize effects of weeds. It has been associated with many negative impacts on soil quality, most notably a reduction in soil organic carbon (SOC), although still a matter of considerable debate, depending on factors such as depth of measurement, soil type, and tillage method. No tillage or reduced intensity tillage are frequently proposed mitigation measures for preservation of SOC and improvement of soil quality, for example for reducing erosion. Whilst several reviews have demonstrated benefits to C conservation of no till agriculture over intensive tillage, the general picture for reduced tillage intensity is unclear. This systematic review proposes to synthesise an extensive body of evidence, previously identified through a systematic map.
Methods
This systematic review is based on studies concerning tillage collated in a recently completed systematic map on the impact of agricultural management on SOC restricted to the warm temperate climate zone (i.e. boreo-temperate). These 311 studies were identified and selected systematically according to CEE guidelines. An update of the original search will be undertaken to identify newly published academic and grey literature in the time since the original search was performed in September 2013. Studies will be critically appraised for their internal and external validity, followed by full data extraction (meta-data describing study settings and quantitative study results). Where possible, studies will be included in meta-analyses examining the effect of tillage reduction (‘moderate' (i.e. shallow) and no tillage relative to ‘intensive' tillage methods such as mouldboard ploughing, where soil is turned over throughout the soil profile). The implications of the findings will be discussed in terms of policy, practice and research along with a discussion of the nature of the evidence base.

Authors/Creators:Haddaway, Neal R. and Hedlund, Katarina and Jackson, Louise E and Kätterer, Thomas and Lugato, Emanuele and Thomsen, Ingrid K. and Bracht Jørgensen, Helene and Isberg, Per-Erik
Title:How does tillage intensity affect soil organic carbon? A systematic review protocol
Series/Journal:Environmental Evidence (2047-2382)
Year of publishing :2016
Volume:5
Number:1
Page range:1-8
Number of Pages:8
Publisher:BioMed Central
ISSN:2047-2382
Language:English
Publication Type:Article Review/Survey
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Keywords:agriculture, conservation, till, plough, farmingland management, climate change, land use change, carbon sequestration
URN:NBN:urn:nbn:se:slu:epsilon-e-3638
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-3638
Additional ID:
Type of IDID
DOI10.1186/s13750-016-0052-0
ID Code:13590
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
External funders:MISTRA
Deposited By: SLUpub Connector
Deposited On:05 Sep 2016 07:22
Metadata Last Modified:05 Sep 2016 07:23

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits