气候变化领域集成服务门户(CCPortal): Efficiency of biochar, nitrogen addition, and microbial agent amendments in remediation of soil properties and microbial community in Qilian Mountains mine soils

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DOI	10.1002/ece3.7715
	Efficiency of biochar, nitrogen addition, and microbial agent amendments in remediation of soil properties and microbial community in Qilian Mountains mine soils
	Kong, Junqia; He, Zhibin; Chen, Longfei; Yang, Rong; Du, Jun
通讯作者	He, ZB ; Chen, LF (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Linze Inland River Basin Res Stn,Chinese Ecosyst, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	2045-7758
起始页码	9318
结束页码	9331
卷号	11 期号:14
英文摘要	Lacking systematic evaluations in soil quality and microbial community recovery after different amendments addition limits optimization of amendments combination in coal mine soils. We performed a short-term incubation experiment with a varying temperature over 12 weeks to assess the effects of three amendments (biochar: C; nitrogen fertilizer at three levels: N-N1 similar to N3; microbial agent at two levels: M-M1 similar to M2) based on C/N ratio (regulated by biochar and N level: 35:1, 25:1, 12.5:1) on mine soil properties and microbial community in the Qilian Mountains, China. Over the incubation period, soil pH and MBC/MBN were significantly lower than unamended treatment in N addition and C + M + N treatments, respectively. Soil organic carbon (SOC), total nitrogen (TN), available nitrogen (AN), available phosphorus (AP), available potassium (AK), microbial biomass carbon (MBC), and nitrogen (MBN) contents increased significantly in all amended treatments (p < .001). Higher AP, AK, MBC, MBN, and lower MBC/MBN were observed in N2-treated soil (corresponding to C/N ratio of 25:1). Meanwhile, N2-treated soil significantly increased species richness and diversity of soil bacterial community (p < .05). Principal coordinate analysis further showed that soil bacterial community compositions were significantly separated by N level. C-M-N treatments significantly increased the relative abundance (>1%) of the bacterial phyla Bacteroidetes and Firmicutes, and decreased the relative abundance of fungal phyla Chytridiomycota (p < .05). Redundancy analysis illustrated the importance of soil nutrients in explaining variability in bacterial community composition (74.73%) than fungal composition (35.0%). Our results indicated that N addition based on biochar and M can improve soil quality by neutralizing soil pH and increasing soil nutrient contents in short-term, and the appropriate C/N ratio (25:1) can better promote microbial mass, richness, and diversity of soil bacterial community. Our study provided a new insight for achieving restoration of damaged habitats by changing microbial structure, diversity, and mass by regulating C/N ratio of amendments.
关键词	BACTERIAL COMMUNITY FUNGAL COMMUNITIES PLANT COMMUNITY BIOMASS FERTILIZATION DYNAMICS RECOVERY MICROORGANISMS REVEGETATION DIVERSITY
英文关键词	biochar; C/N ratio; microbial agent; microbial community; mine soil; N fertilizer; soil quality
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:000663293900001
来源期刊	ECOLOGY AND EVOLUTION
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254037
作者单位	[Kong, Junqia; He, Zhibin; Chen, Longfei; Yang, Rong; Du, Jun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Linze Inland River Basin Res Stn,Chinese Ecosyst, Lanzhou 730000, Peoples R China; [Kong, Junqia] Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Kong, Junqia,He, Zhibin,Chen, Longfei,et al. Efficiency of biochar, nitrogen addition, and microbial agent amendments in remediation of soil properties and microbial community in Qilian Mountains mine soils[J]. 中国科学院西北生态环境资源研究院,2021,11(14).
APA	Kong, Junqia,He, Zhibin,Chen, Longfei,Yang, Rong,&Du, Jun.(2021).Efficiency of biochar, nitrogen addition, and microbial agent amendments in remediation of soil properties and microbial community in Qilian Mountains mine soils.ECOLOGY AND EVOLUTION,11(14).
MLA	Kong, Junqia,et al."Efficiency of biochar, nitrogen addition, and microbial agent amendments in remediation of soil properties and microbial community in Qilian Mountains mine soils".ECOLOGY AND EVOLUTION 11.14(2021).