English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The  in situ  application of rice straw enhances CH 4  emissions by a large margin. The  ex situ  application of rice straw in uplands, however, may mitigate total global warming potential (GWP) of CH 4  and N 2 O emissions from paddy-upland coexisting systems. To evaluate the efficiency of this practice, two field trials were conducted in rice-rice-fallow and maize-rape cropping systems, respectively. Year-round measurements of CH 4  and N 2 O emissions were conducted to evaluate the system-scaled GWP. The results showed that CH 4  accounted for more than 98% of GWP in paddy. Straw removal from paddy decreased 44.7% (302.1 kg ha −1  yr −1 ) of CH 4  emissions and 51.2% (0.31 kg ha −1  yr −1 ) of N 2 O emissions, thus decreased 44.8% (7693 kg CO 2 -eqv ha −1  yr −1 ) of annual GWP. N 2 O accounted for almost 100% of GWP in upland. Straw application in upland had insignificant effects on CH 4  and N 2 O emissions, which increased GWP only by 91 kg CO 2 -eqv ha −1  yr −1 . So, the transfer of straw from paddy to upland could decrease GWP by 7602 kg CO 2 -eqv ha −1  yr −1 . Moreover, straw retention during late rice season contributed to 88.2% of annual GWP increment. It is recommended to transfer early rice straw to upland considering GWP mitigation, nutrient recycling and labor cost.

Mitigating effects of ex situ application of rice straw on CH4 and N2O emissions from paddy-upland coexisting system