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Soil carbon insures arable crop production against increasing adverse weather due to climate change

Droste, Nils LU orcid ; May, Wilhelm LU ; Clough, Yann LU ; Börjesson, Gunnar ; Brady, Mark Vincent LU orcid and Hedlund, Katarina LU orcid (2020) In Environmental Research Letters 15(12).
Abstract
Intensification of arable crop production degrades soil health and production potential through loss of soil organic carbon. This, potentially, reduces agriculture's resilience to climate change and thus food security. Furthermore, the expected increase in frequency of adverse and extreme weather events due to climate change are likely to affect crop yields differently, depending on when in the growing season they occur. We show that soil carbon provides farmers with a natural insurance against climate change through a gain in yield stability and more resilient production. To do this, we combined yield observations from 12 sites and 54 years of Swedish long-term agricultural experiments with historical weather data. To account for... (More)
Intensification of arable crop production degrades soil health and production potential through loss of soil organic carbon. This, potentially, reduces agriculture's resilience to climate change and thus food security. Furthermore, the expected increase in frequency of adverse and extreme weather events due to climate change are likely to affect crop yields differently, depending on when in the growing season they occur. We show that soil carbon provides farmers with a natural insurance against climate change through a gain in yield stability and more resilient production. To do this, we combined yield observations from 12 sites and 54 years of Swedish long-term agricultural experiments with historical weather data. To account for heterogenous climate effects, we partitioned the growing season into four representative phases for two major cereal crops. Thereby, we provide evidence that higher soil carbon increases yield gains from favourable conditions and reduces yield losses due to adverse weather events and how this occurs over different stages of the growing season. However, agricultural management practices that restore the soil carbon stock, thus contributing to climate change mitigation and adaptation, usually come at the cost of foregone yield for the farmer in the short term. To halt soil degradation and make arable crop production more resilient to climate change, we need agricultural policies that address the public benefits of soil conservation and restoration. (Less)
Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
soil organic carbon, soil biodiversity, arable crop production, climate change, agricultural long-term experiments
in
Environmental Research Letters
volume
15
issue
12
article number
124034
publisher
IOP Publishing
external identifiers
  • scopus:85103257465
ISSN
1748-9326
DOI
10.1088/1748-9326/abc5e3
language
English
LU publication?
yes
id
6432b8bd-4f31-4190-a274-0fc8a4aa53af
date added to LUP
2020-11-17 13:30:29
date last changed
2024-05-15 21:18:29
@article{6432b8bd-4f31-4190-a274-0fc8a4aa53af,
  abstract     = {{Intensification of arable crop production degrades soil health and production potential through loss of soil organic carbon. This, potentially, reduces agriculture's resilience to climate change and thus food security. Furthermore, the expected increase in frequency of adverse and extreme weather events due to climate change are likely to affect crop yields differently, depending on when in the growing season they occur. We show that soil carbon provides farmers with a natural insurance against climate change through a gain in yield stability and more resilient production. To do this, we combined yield observations from 12 sites and 54 years of Swedish long-term agricultural experiments with historical weather data. To account for heterogenous climate effects, we partitioned the growing season into four representative phases for two major cereal crops. Thereby, we provide evidence that higher soil carbon increases yield gains from favourable conditions and reduces yield losses due to adverse weather events and how this occurs over different stages of the growing season. However, agricultural management practices that restore the soil carbon stock, thus contributing to climate change mitigation and adaptation, usually come at the cost of foregone yield for the farmer in the short term. To halt soil degradation and make arable crop production more resilient to climate change, we need agricultural policies that address the public benefits of soil conservation and restoration.}},
  author       = {{Droste, Nils and May, Wilhelm and Clough, Yann and Börjesson, Gunnar and Brady, Mark Vincent and Hedlund, Katarina}},
  issn         = {{1748-9326}},
  keywords     = {{soil organic carbon; soil biodiversity; arable crop production; climate change; agricultural long-term experiments}},
  language     = {{eng}},
  month        = {{12}},
  number       = {{12}},
  publisher    = {{IOP Publishing}},
  series       = {{Environmental Research Letters}},
  title        = {{Soil carbon insures arable crop production against increasing adverse weather due to climate change}},
  url          = {{http://dx.doi.org/10.1088/1748-9326/abc5e3}},
  doi          = {{10.1088/1748-9326/abc5e3}},
  volume       = {{15}},
  year         = {{2020}},
}