Variation of soil nitrate and bacterial diversity along soil profiles in manure disposal maize field and adjacent woodland

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Variation of soil nitrate and bacterial diversity along soil profiles in manure disposal maize field and adjacent woodland
	Cai, Yujia; Shen, Ju-Pei; Di, Hong J.; Zhang, Li-Mei; Zhang, Chengjun; He, Ji-Zheng
刊名	JOURNAL OF SOILS AND SEDIMENTS
	2020-10
卷号	20 期号:10 页码:3557-3568
关键词	Manure disposal Nitrate isotope Bacterial community assembly \|Spatio-temporal variation \|Land use
ISSN号	1439-0108
英文摘要	Purpose Intensified livestock system produced large amount of bio-waste, and improper disposal of livestock manure has led to severe environmental consequences. However, knowledge about the time-dependent changes of manure-derived nitrate and soil bacterial diversity along the soil profiles is limited. Materials and methods Vertical variation of soil bacterial diversity and composition in a manure-amended maize field and adjacent non-manured woodland was investigated using high-throughput sequencing technique in spring and autumn along a 1-m profile depth. The soil is classified as aquic inceptisol with a bulk density of 1.31 g cm(-3), and a sandy loam texture. Results The results showed that significant higher amount of nitrate (up to 172.13 mg kg(-1)) was detected along the soil profile loaded with cattle manure compared with the adjacent non-manured woodland. Soil delta N-15-NO(3)(-)composition from maize field fall between + 5 and 25 parts per thousand, while those from woodland fall between - 5 and 15 parts per thousand. No significant difference in bacterial richness between the two land uses was found, while clear separation of bacterial structure was detected even to the deep soil layers. Canonical correspondence analysis showed that soil organic matter, C/N ratio, nitrate content, pH, and moisture were the major factors influencing the variance of bacterial community composition. Bacterial networks in the maize field harbor more modules than those in the adjacent woodland. Negative standardized effect size measure of mean nearest taxon distance in the soils tended to be more phylogenetically clustered than expected by chance, and was more likely to be clustered along the depth. Conclusions These findings suggested that soil bacterial beta diversity was strongly affected by multi-nutrient properties in terms of high livestock manure load, and had important implications for assessing the environmental impacts on belowground biodiversity in sandy loam soils.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44510]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Cai, Yujia,Shen, Ju-Pei,Di, Hong J.,et al. Variation of soil nitrate and bacterial diversity along soil profiles in manure disposal maize field and adjacent woodland[J]. JOURNAL OF SOILS AND SEDIMENTS,2020,20(10):3557-3568.
APA	Cai, Yujia,Shen, Ju-Pei,Di, Hong J.,Zhang, Li-Mei,Zhang, Chengjun,&He, Ji-Zheng.(2020).Variation of soil nitrate and bacterial diversity along soil profiles in manure disposal maize field and adjacent woodland.JOURNAL OF SOILS AND SEDIMENTS,20(10),3557-3568.
MLA	Cai, Yujia,et al."Variation of soil nitrate and bacterial diversity along soil profiles in manure disposal maize field and adjacent woodland".JOURNAL OF SOILS AND SEDIMENTS 20.10(2020):3557-3568.