Ma Liang, Yang Tiexin, Dong Liqiang, Pan Zhengyan, Feng Yingying, Li Zhiqiang, Sun Fuyu
Liaoning Rice Research Institute, Shenyang, China.
Liaoning Academy of Agricultural Sciences, Shenyang, China.
Front Microbiol. 2025 Jan 8;15:1395544. doi: 10.3389/fmicb.2024.1395544. eCollection 2024.
In order to investigate the effects of a rice-crab coculture mode and its duration on the richness and diversity of the soil microbial community.
Soil from long-term rice-crab coculture mode (MY), newly established rice-crab coculture mode (OY) and rice monoculture mode (N) were used to measured soil physicochemical properties, enzyme activity and 16S and ITS soil microbial communities.
The results revealed that in terms of mode, the MBC, MBN and CAT of OY were significantly greater than those of N by 10.75, 23.47 and 30.71% ( < 0.05), respectively. The richness and diversity of the soil microbial communities changed little, and there was no difference in the main species. In terms of duration, the OM, SC and PPO contents of MY were significantly greater than those of OY by 21.96, 41.89 and 11.52% ( < 0.05), respectively. The soil fungi changed significantly, and the main species were and in genus level. The soil physicochemical properties and soil enzymes explained 93.38 and 93.66%, respectively, of the variation in the soil microbial community, and OM and DHA were the main factors influencing the change in soil biodiversity.
Our results suggested that long-term rice-crab coculture mode altered the richness and diversity of the soil microbial community and soil carbon sequestration.
为了研究稻蟹共养模式及其持续时间对土壤微生物群落丰富度和多样性的影响。
采用长期稻蟹共养模式(MY)、新建立的稻蟹共养模式(OY)和水稻单作模式(N)的土壤,测定土壤理化性质、酶活性以及土壤微生物群落的16S和ITS。
结果表明,在模式方面,OY的MBC、MBN和CAT分别比N显著高10.75%、23.47%和30.71%(P<0.05)。土壤微生物群落的丰富度和多样性变化不大,主要物种无差异。在持续时间方面,MY的OM、SC和PPO含量分别比OY显著高21.96%、41.89%和11.52%(P<0.05)。土壤真菌变化显著,属水平上主要物种为 和 。土壤理化性质和土壤酶分别解释了土壤微生物群落变异的93.38%和93.66%,OM和DHA是影响土壤生物多样性变化的主要因素。
我们的结果表明,长期稻蟹共养模式改变了土壤微生物群落的丰富度和多样性以及土壤碳固存。