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- Title
余姚滨海不同盐碱度土壤微生物群落组成及土壤酶活性的变化.
- Authors
孙慧; 张建锋; 许华森; 陈光才; 王利平
- Abstract
In October 2015, soil samples with different salinity were collected in a coast area in Yuyao, Zhejiang, and soil microbial community composition, soil catalase, urease activities, as well as soil physical and chemical properties were studied. The results showed that Nitrospira took absolute advantage in the bacterial community, and showed good correlations to total potassium. Cladosporium and Fusarium were predominant in the fungal community. Meanwhile, Cladosporium was related to soil urease and total nitrogen, and same correlation was found between Fusarium and soil urease. Catalase activity ranged from 3.52 to 4.56 mL·g-1, 3.08 to 4.61 mL·g-1 and 5.81 to 6.91 mL·g-1 for soils with heavy, medium and weak salinity, respectively. Catalase activity increased with the soil layer deepening, which was directly related to soil total potassium, and indirectly related to pH, organic matter, total nitrogen and total phosphorus through total potassium. Soil urease activity ranged among 0.04 to 0.52 mg·g-1, 0.08 to 1.07 mg·g-1 and 0.27 to 8.21 mg·g-1 for each saline soil, respectively. Urease activity decreased with soil layer deepening which was directly related to soil total nitrogen, and was indirectly related to pH, organic matter and total potassium through total nitrogen. The total phosphorus was the largest effect factor on the bacterial community CCA ordination, and the urease was on fungal community.
- Publication
Yingyong Shengtai Xuebao, 2016, Vol 27, Issue 10, p3361
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001-9332.201610.034