|
| Effects of fallow winter wheat on soil fauna community and feeding activity |
| Received:March 10, 2022 |
| View Full Text View/Add Comment Download reader |
| KeyWord:farmland soil;microarthropods;fallow;feeding activity;temperature;humidity;wheat |
| Author Name | Affiliation | E-mail | | LI Qicong | College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Quality of Ministry of Agriculture and Rural Affairs/Tianjin Key Laboratory of Agro-Environmental and Agro-Product Safety, Tianjin 300191, China | | | ZHANG Siyu | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Quality of Ministry of Agriculture and Rural Affairs/Tianjin Key Laboratory of Agro-Environmental and Agro-Product Safety, Tianjin 300191, China | | | JIA Mengyuan | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Quality of Ministry of Agriculture and Rural Affairs/Tianjin Key Laboratory of Agro-Environmental and Agro-Product Safety, Tianjin 300191, China | | | LI Gang | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Quality of Ministry of Agriculture and Rural Affairs/Tianjin Key Laboratory of Agro-Environmental and Agro-Product Safety, Tianjin 300191, China | | | XIU Weiming | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Quality of Ministry of Agriculture and Rural Affairs/Tianjin Key Laboratory of Agro-Environmental and Agro-Product Safety, Tianjin 300191, China | | | YANG Dianlin | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Quality of Ministry of Agriculture and Rural Affairs/Tianjin Key Laboratory of Agro-Environmental and Agro-Product Safety, Tianjin 300191, China | | | ZHAO Jianning | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Key Laboratory of Original Agro-Environmental Quality of Ministry of Agriculture and Rural Affairs/Tianjin Key Laboratory of Agro-Environmental and Agro-Product Safety, Tianjin 300191, China | zhaojn2008@163.com |
|
| Hits: 1650 |
| Download times: 1834 |
| Abstract: |
| To clarify the response of farmland soil fauna to different tillage regimes, this study took soil microarthropods in North China wheat fields as the research object to explore the effects of fallow on soil microarthropod communities and their feeding activities. In the experiment, the plots without sowing crops were set as the fallow treatment, and normal sowing was regarded as the non-fallow treatment. The spatial and temporal differences in soil temperature and humidity between treatments and different soil layers were analyzed, and the feeding activities of soil fauna were analyzed in situ using the Bait-Lamina test（BLT）. The results showed that soil microarthropods in the fallow and non-fallow treatments were dominated by Acariformes, accounting for 89% of the total abundance, and had obvious surface aggregation effects. In addition, fallow had inconsistent effects on the soil microarthropod communities at different soil depths. In the 0-5 cm soil layer, the abundance of soil microarthropods in the non-fallow treatment increased significantly to approximately 4.4 times that of the fallow treatment. In the 5-10 cm soil layer, the number of microarthropods in the non-fallow treatment increased by approximately 46% compared to the fallow treatment. Correlation analysis showed significant positive correlation between soil microarthropod feeding activity and soil temperature, humidity and different planting patterns. From the jointing stage to the maturity stage of wheat, the feeding activity of soil microarthropods in the fallow treatment was significantly higher than that in the non-fallow treatment, and reached maximum at the heading stage with the highest soil humidity. This study showed that fallow significantly reduced the number and diversity of soil microarthropods at 0-10 cm depth but increased their feeding activity. The feeding activity of soil microarthropod communities was mainly affected by soil humidity. |
|
|
|
