Trends in soil organic matter contents in Dutch grasslands and maize fields on sandy soils

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Abstract

There is considerable concern in Europe that soil organic matter (SOM) contents are declining, which would threaten both agriculture and the environment. We performed a trend analysis of SOM contents in sandy soils, using historic data from routine agricultural soil analyses. Data were selected from grass, grass-maize rotation and maize fields in four adjacent provinces that had been sampled four to five times during the period 1984¿2004. Absolute (at least 1%) and relative changes (SOMt=20/SOMt=0) were calculated and regressed against initial SOM contents. Mean SOM content showed a north-south gradient per cropping system. We found no single uniform trend in SOM contents for any of the three systems. Over the 20-year period, SOM declined in c. 25% of all grasslands, amounting to 185 000 of the 635 000 hectares of land under grass and forage crops in the four provinces, and increased in a total of 267 000 hectares. Carbon accumulation in grassland sandy soils was calculated at 39 g C m¿2 year¿1 (top 5 cm). For the grasslands, initial SOM contents were linearly and negatively related to absolute changes in SOM; the relation with the relative change was best explained by using log-transformed values of SOM. We conclude that in grassland soils in the Netherlands, conservation of SOM requires identification of high-risk fields rather than high-risk areas. For continuous maize on sandy soils, the entire area may be denoted as high-risk, because all fields could reach the critical limit of 3.4% SOM in the near future
Original languageEnglish
Pages (from-to)213-222
JournalEuropean Journal of Soil Science
Volume60
Issue number2
DOIs
Publication statusPublished - 2009

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sandy soil
sandy soils
soil organic matter
grasslands
grassland
maize
corn
grassland soils
grassland soil
grass
grasses
trend
forage crops
trend analysis
agricultural soils
agricultural soil
cropping systems
cropping practice
Netherlands
agriculture

Keywords

  • agricultural soils
  • carbon storage
  • management
  • emissions
  • accurate
  • quality
  • losses

Cite this

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title = "Trends in soil organic matter contents in Dutch grasslands and maize fields on sandy soils",
abstract = "There is considerable concern in Europe that soil organic matter (SOM) contents are declining, which would threaten both agriculture and the environment. We performed a trend analysis of SOM contents in sandy soils, using historic data from routine agricultural soil analyses. Data were selected from grass, grass-maize rotation and maize fields in four adjacent provinces that had been sampled four to five times during the period 1984¿2004. Absolute (at least 1{\%}) and relative changes (SOMt=20/SOMt=0) were calculated and regressed against initial SOM contents. Mean SOM content showed a north-south gradient per cropping system. We found no single uniform trend in SOM contents for any of the three systems. Over the 20-year period, SOM declined in c. 25{\%} of all grasslands, amounting to 185 000 of the 635 000 hectares of land under grass and forage crops in the four provinces, and increased in a total of 267 000 hectares. Carbon accumulation in grassland sandy soils was calculated at 39 g C m¿2 year¿1 (top 5 cm). For the grasslands, initial SOM contents were linearly and negatively related to absolute changes in SOM; the relation with the relative change was best explained by using log-transformed values of SOM. We conclude that in grassland soils in the Netherlands, conservation of SOM requires identification of high-risk fields rather than high-risk areas. For continuous maize on sandy soils, the entire area may be denoted as high-risk, because all fields could reach the critical limit of 3.4{\%} SOM in the near future",
keywords = "agricultural soils, carbon storage, management, emissions, accurate, quality, losses",
author = "M.C. Hanegraaf and E. Hoffland and P.J. Kuikman and L. Brussaard",
year = "2009",
doi = "10.1111/j.1365-2389.2008.01115.x",
language = "English",
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pages = "213--222",
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Trends in soil organic matter contents in Dutch grasslands and maize fields on sandy soils. / Hanegraaf, M.C.; Hoffland, E.; Kuikman, P.J.; Brussaard, L.

In: European Journal of Soil Science, Vol. 60, No. 2, 2009, p. 213-222.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Trends in soil organic matter contents in Dutch grasslands and maize fields on sandy soils

AU - Hanegraaf, M.C.

AU - Hoffland, E.

AU - Kuikman, P.J.

AU - Brussaard, L.

PY - 2009

Y1 - 2009

N2 - There is considerable concern in Europe that soil organic matter (SOM) contents are declining, which would threaten both agriculture and the environment. We performed a trend analysis of SOM contents in sandy soils, using historic data from routine agricultural soil analyses. Data were selected from grass, grass-maize rotation and maize fields in four adjacent provinces that had been sampled four to five times during the period 1984¿2004. Absolute (at least 1%) and relative changes (SOMt=20/SOMt=0) were calculated and regressed against initial SOM contents. Mean SOM content showed a north-south gradient per cropping system. We found no single uniform trend in SOM contents for any of the three systems. Over the 20-year period, SOM declined in c. 25% of all grasslands, amounting to 185 000 of the 635 000 hectares of land under grass and forage crops in the four provinces, and increased in a total of 267 000 hectares. Carbon accumulation in grassland sandy soils was calculated at 39 g C m¿2 year¿1 (top 5 cm). For the grasslands, initial SOM contents were linearly and negatively related to absolute changes in SOM; the relation with the relative change was best explained by using log-transformed values of SOM. We conclude that in grassland soils in the Netherlands, conservation of SOM requires identification of high-risk fields rather than high-risk areas. For continuous maize on sandy soils, the entire area may be denoted as high-risk, because all fields could reach the critical limit of 3.4% SOM in the near future

AB - There is considerable concern in Europe that soil organic matter (SOM) contents are declining, which would threaten both agriculture and the environment. We performed a trend analysis of SOM contents in sandy soils, using historic data from routine agricultural soil analyses. Data were selected from grass, grass-maize rotation and maize fields in four adjacent provinces that had been sampled four to five times during the period 1984¿2004. Absolute (at least 1%) and relative changes (SOMt=20/SOMt=0) were calculated and regressed against initial SOM contents. Mean SOM content showed a north-south gradient per cropping system. We found no single uniform trend in SOM contents for any of the three systems. Over the 20-year period, SOM declined in c. 25% of all grasslands, amounting to 185 000 of the 635 000 hectares of land under grass and forage crops in the four provinces, and increased in a total of 267 000 hectares. Carbon accumulation in grassland sandy soils was calculated at 39 g C m¿2 year¿1 (top 5 cm). For the grasslands, initial SOM contents were linearly and negatively related to absolute changes in SOM; the relation with the relative change was best explained by using log-transformed values of SOM. We conclude that in grassland soils in the Netherlands, conservation of SOM requires identification of high-risk fields rather than high-risk areas. For continuous maize on sandy soils, the entire area may be denoted as high-risk, because all fields could reach the critical limit of 3.4% SOM in the near future

KW - agricultural soils

KW - carbon storage

KW - management

KW - emissions

KW - accurate

KW - quality

KW - losses

U2 - 10.1111/j.1365-2389.2008.01115.x

DO - 10.1111/j.1365-2389.2008.01115.x

M3 - Article

VL - 60

SP - 213

EP - 222

JO - European Journal of Soil Science

JF - European Journal of Soil Science

SN - 1351-0754

IS - 2

ER -