Forest management practices of Pinus tabulaeformis plantations alter soil organic carbon stability by adjusting microbial characteristics on the Loess Plateau of China

doi:10.1016/j.scitotenv.2020.144209

	Forest management practices of Pinus tabulaeformis plantations alter soil organic carbon stability by adjusting microbial characteristics on the Loess Plateau of China
	Song, Yahui 3,5; Zhai, Jiaying 3,4; Zhang, Jiaoyang 3,4; Qiao, Leilei 2,3; Wang, Guoliang 2,3; Ma, Lihui 1,2; Xue, Sha 2,3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-04-20
卷号	766 页码:8
关键词	Microbial characteristic Soil organic carbon stability Forest management practices Loess Plateau
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.144209
通讯作者	Ma, Lihui(gjzmlh@126.com)
英文摘要	Sustainable management practices can enhance the capacity and potential for soil carbon (C) sequestration, significantly contributing towards mitigating regional climate change. Here, we investigated how the microbial characteristics of a Pinus tabulaeformis plantation responded to different management practices to identify the role of microbial characteristics in influencing the stability of soil organic carbon (SOC). We chose a Pinus tabulaeformis plantation on the Loess Plateau where forest management practices had been conducted since 1999. Five forest management practices were implemented: two at the forest level (P. tabulaeformis with and without ground litter), and three using different vegetation restoration approaches after dear-cutting (P. tabulaeformis seedlings, abandoned grassland, and natural shrub regeneration). Microbial biomass, soil respiration, microbial community structure, microbial metabolic function, and soil oxidizable organic carbon (OC) fractions were evaluated. Forest management practices changed SOC stability by adjusting the microbial characteristics (e.g. soil microbial community diversity and microbial metabolic function diversity). The result of path analysis was that the direct path coefficient of microbial biomass on soil oxidizable OC fractions was the largest, which was 1,499. Path analysis and redundancy analysis showed that microbial biomass had the largest direct influence on soil oxidizable OC fractions. Compared with other forest management practices, natural shrub regeneration increased the nonlabile carbon fraction by increasing soil microbial characteristics, and contributed the most towards stabilizing SOC, which enhanced the stability of the soil ecosystem on the plateau. In conclusion, microbial biomass was the biggest influence factor of SOC stability. In contrast, the stability of SOC may be most stable in the area of natural shrub regeneration. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[41671510]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000617676800065
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162066]
专题	中国科学院地理科学与资源研究所
通讯作者	Ma, Lihui
作者单位	1.Northwest A&F Univ, Inst Water Saving Agr Arid Areas China, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Northwest A&F Univ, Coll Forestry, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Song, Yahui,Zhai, Jiaying,Zhang, Jiaoyang,et al. Forest management practices of Pinus tabulaeformis plantations alter soil organic carbon stability by adjusting microbial characteristics on the Loess Plateau of China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,766:8.
APA	Song, Yahui.,Zhai, Jiaying.,Zhang, Jiaoyang.,Qiao, Leilei.,Wang, Guoliang.,...&Xue, Sha.(2021).Forest management practices of Pinus tabulaeformis plantations alter soil organic carbon stability by adjusting microbial characteristics on the Loess Plateau of China.SCIENCE OF THE TOTAL ENVIRONMENT,766,8.
MLA	Song, Yahui,et al."Forest management practices of Pinus tabulaeformis plantations alter soil organic carbon stability by adjusting microbial characteristics on the Loess Plateau of China".SCIENCE OF THE TOTAL ENVIRONMENT 766(2021):8.