Claim · model-written summary
DIV rotation significantly increased GPP relative to CONV.
- Taxon
- crop rotationt0
- Treatment
- DIV rotatione0
- Outcome
- gross primary production (GPP)e0
- Direction
- increasede0
- Value
- –3750e0
- Comparator
- CONVe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Verbatim
e0“DIV rotation significantly increased cumulative NEE, gross primary production (GPP), and ecosystem respiration (Re) –578, –3750 and 3170 g C m −2 , respectively, compared to the CONV (–501, –3361, 2859 g C m −2 ) over three years.”
t0“diverse crop rotation using cover crops”
Title
Keerthika N. Ranathunga; Jacob Evans; Nikolett Toth; et al. Agriculture Ecosystems & Environment 2024. doi:10.1016/j.agee.2024.109418
Other claims from this paper (10)
- Intervention effect DIV rotation significantly increased cumulative NEE relative to CONV.
- Intervention effect DIV rotation significantly increased ecosystem respiration relative to CONV.
- Intervention effect DIV rotation had a 15 % increase in NEE compared to CONV.
- Observation Corn and soybean fields in both rotations were annual carbon sources after accounting for grain carbon removal.
- Observation DIV winter wheat with cover crops was a carbon sink when only grain was removed.
- Observation DIV winter wheat with cover crops became a carbon source when straw and grain were removed.
- Observation Both rotation fields were carbon sources across three study years.
- Intervention effect DIV rotation was a net GHG source relative to CONV with straw and grain removal.
- Intervention effect DIV and CONV rotations had similar net GHG emissions when only wheat grain was removed.
- Recommendation The authors call for long-term measurements to confirm the GHG trend.