Phosphogypsum with Rice Cultivation Driven Saline-Alkali Soil Remediation Alters the Microbial Community Structure

磷石膏 土壤盐分 碱土 环境科学 农学 微生物种群生物学 环境修复 化学 土壤水分 土壤科学 生物 生态学 细菌 原材料 有机化学 污染 遗传学
作者
Guanru Lu,Zhonghui Feng,Yang Xu,Fachun Guan,Yangyang Jin,Guohui Zhang,Jiafeng Hu,Tianhe Yu,Mingming Wang,Miao Liu,Haoyu Yang,Weiqiang Li,Zhengwei Liang
出处
期刊:Plants [Multidisciplinary Digital Publishing Institute]
卷期号:13 (19): 2818-2818
标识
DOI:10.3390/plants13192818
摘要

The improvement of saline-alkali land plays a key role in ensuring food security and promoting agricultural development. Saline soils modifies the response of the soil microbial community, but research is still limited. The effects of applying phosphogypsum with rice cultivation (PRC) on soil physicochemical properties and bacterial community in soda saline-alkali paddy fields in Songnen Plain, China were studied. The results showed that the PRC significantly improved the physicochemical properties of soil, significantly reduced the salinity, increased the utilization efficiency of carbon, nitrogen, and phosphorus, and significantly increased the activities of urease and phosphatase. The activities of urease and phosphatase were significantly correlated with the contents of total organic carbon and total carbon. A redundancy analysis showed that pH, AP, ESP, HCO3−, and Na+ were dominant factors in determining the bacterial community structure. The results showed that PRC could improve soil quality and enhance the ecosystem functionality of soda saline-alkali paddy fields by increasing nutrient content, stimulating soil enzyme activity, and regulating bacterial community improvement. After many years of PRC, the soda-alkali soil paddy field still develops continuously and healthily, which will provide a new idea for sustainable land use management and agricultural development.
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