Enchytraeids simultaneously stimulate rice straw degradation and mitigate CO 2 release in a paddy soil
John K., Degtyarev M., Gorbunova A., Korobushkin D., Knöss H., Wolters V., Zaytsev A. S.
Soil Biology and Biochemistry
Vol.131, P. 191-194
Опубликовано: 2019
Тип ресурса: Статья
DOI:10.1016/j.soilbio.2019.01.014
Аннотация:
The contribution of soil enchytraeids (potworms) to carbon cycling is often considered marginal and is therefore rarely quantified. In our experiment we aimed at evaluating the impact of the model enchytraeid species Enchytraeus buchholzi Vejdovsky, 1879 on rice straw degradation and associated CO 2 release from soil. We filled 48 microcosms with soil collected in rice paddies of the Republic of Kalmykia, Russia, at 75[%] water holding capacity and added 0.5 g dry rice straw sealed in litterbags to each of them. Half of the microcosms were inoculated with 100 potworms. On days 3, 6, 9, 14, 21 and 31 after the start of the experiment, we measured CO 2 emissions from soil. In addition, we terminated four microcosms with and four without enchytraeids at each of these dates to measure both rice straw mass loss and enchytraeid recovery rates. E. buchholzi significantly accelerated the relative rice straw mass loss (10.2 ± 1.4 and 14.2 ± 2.0[%], respectively). It also significantly reduced CO 2
Ключевые слова:
Carbon dioxide; Carbon sequestration; Enchytraeidae; Greenhouse gas mitigation; Litter mass loss
Agricultural wastes; Animals; Greenhouse gases; Soils; Carbon sequestration; Enchytraeidae; Greenhouse gas mitigation; Management measures; Mass loss; Mitigation of co2; Observation Period; Water holding capacity; Carbon dioxide; agricultural soil; carbon cycle; carbon dioxide; carbon emission; carbon sequestration; crop residue; earthworm; greenhouse gas; litter; paddy field; soil fauna; straw; Kalmykia; Russian Federation; Enchytraeidae; Enchytraeus buchholzi
Язык текста: Английский
ISSN: 0038-0717
John K.
Degtyarev M.
Gorbunova A.
Korobushkin D.
Knöss H.
Wolters V.
Zaytsev A. S. Andrej Stanislavovich 1975-
Йохн К.
Дегтярев М.
Горбунова А.
Коробушкин Д.
Кнöсс Х.
Wолтерс В.
Зайцев А. С. Андрей Станиславович 1975-
Enchytraeids simultaneously stimulate rice straw degradation and mitigate CO 2 release in a paddy soil
Текст визуальный непосредственный
Soil Biology and Biochemistry
Elsevier Science Publisher B.V.
Vol.131 P. 191-194
2019
Статья
Carbon dioxide Carbon sequestration Enchytraeidae Greenhouse gas mitigation Litter mass loss
Agricultural wastes Animals Greenhouse gases Soils Carbon sequestration Enchytraeidae Greenhouse gas mitigation Management measures Mass loss Mitigation of co2 Observation Period Water holding capacity Carbon dioxide agricultural soil carbon cycle carbon dioxide carbon emission carbon sequestration crop residue earthworm greenhouse gas litter paddy field soil fauna straw Kalmykia Russian Federation Enchytraeidae Enchytraeus buchholzi
The contribution of soil enchytraeids (potworms) to carbon cycling is often considered marginal and is therefore rarely quantified. In our experiment we aimed at evaluating the impact of the model enchytraeid species Enchytraeus buchholzi Vejdovsky, 1879 on rice straw degradation and associated CO 2 release from soil. We filled 48 microcosms with soil collected in rice paddies of the Republic of Kalmykia, Russia, at 75[%] water holding capacity and added 0.5 g dry rice straw sealed in litterbags to each of them. Half of the microcosms were inoculated with 100 potworms. On days 3, 6, 9, 14, 21 and 31 after the start of the experiment, we measured CO 2 emissions from soil. In addition, we terminated four microcosms with and four without enchytraeids at each of these dates to measure both rice straw mass loss and enchytraeid recovery rates. E. buchholzi significantly accelerated the relative rice straw mass loss (10.2 ± 1.4 and 14.2 ± 2.0[%], respectively). It also significantly reduced CO 2