Reduction in soil CO2 efflux through alteration of hydrothermal factor in milk vetch (Astragalus sinicus L.)-rapeseed (Brassica napus L.) intercropping system

• DOI: 10.3389/fpls.2022.1093507
• Publication Date: 2023-01-10T21:29:38Z
• Authors: Quan Zhou; Anna Gunina; Jiao Chen; Yi Xing; Ying Xiong; Zhiming Guo; Longchang Wang
• Keywords: Intercropping; Monoculture

Intercropping has a potential to reduce the CO2 emission from farmlands. Limited information is available on underlying reasons.This study investigated effect of milk vetch (Astragalus sinicus L.) (MV), rapeseed (Brassica napus monoculture (RS) and intercropping (Intercrop) soil emissions, moisture temperature in bucket experiment during 210 days October 2015 May 2016 Chongqing, China.The results showed that efflux MV, RS Intercrop was 1.44, 1.55 2.08 μmol·m-2·s-1 seedling stem elongation stages 3.08, 1.59 1.95 flowering podding stages. At seeding had 1.4 times higher than mean MV RS. In contrast, MVhad 1.6 thereafter, which shows it inhibited if presents as only. Decreased sensitivity respiration lower by were found compared MV. decreased moisture, especially at stages, monoculture. The fluctuation slight with changes moisture.Thus, vetch-rapeseed system decrease farmland, however should be regulated properly.