Effects of exotic plantation forests on soil edaphon and organic matter fractions

doi:10.1016/j.scitotenv.2018.01.088

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Effects of exotic plantation forests on soil edaphon and organic matter fractions
	Xu, Gang 1; Liu, Yao 1; Long, Zhijian 1; Hu, Shanglian 1; Zhang, Yuanbin2 ; Jiang, Hao2
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2018-06-01
卷号	626 页码:59-68
关键词	Land cover change Pure fast-growing plantation Phospholipid fatty acid Soil carbon and nitrogen-use efficiency
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2018.01.088
英文摘要	There is uncertainty and limited knowledge regarding soil microbial properties and organic matter fractions of natural secondary forest accompanying chemical environmental changes of replacement by pure alien plantation forests in a hilly area of southwest of Sichuan province China. The aimof this study was to evaluate the impact of natural secondary forest (NSF) to pure Cryptomeria fortunei forest (CFF) and Cunninghamia lanceolata forest (CLF) on soil organic fractions and microbial communities. The results showed that the soil total phospholipid fatty acids (PLFAs), total bacteria and fungi, microbial carbon pool, organic recalcitrant carbon (C) and (N) fractions, soil microbial quotient and labile and recalcitrant C use efficiencies in each pure plantation were significantly decreased, but their microbial N pool, labile C and N pools, soil carbon dioxide efflux, soil respiratory quotient and recalcitrant N use efficiency were increased. An RDA analysis revealed that soil total PLFAs, total bacteria and fungi and total Gram-positive and Gram-negative bacteria were significantly associated with exchangeable Al3+, exchangeable acid, Al3+, available P and Mg2+ and pH, which resulted into microbial functional changes of soil labile and recalcitrant substrate use efficiencies. Modified microbial C-and N-use efficiency due to forest conversion ultimately meets those of rapidly growing trees in plantation forests. Enlarged soil labile fractions and soil respiratory quotients in plantation forests would be a potential positive effect for C source in the future forest management. Altogether, pure plantation practices could provoke regulatory networks and functions of soil microbes and enzyme activities, consequently leading to differentiated utilization of soil organicmatter fractions accompanying the change in environmental factors. (C) 2018 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000428194000007
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/22897]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Xu, Gang
作者单位	1.Southwest Univ Sci & Technol, Sch Life Sci & Engn, Mianyang 621010, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Xu, Gang,Liu, Yao,Long, Zhijian,et al. Effects of exotic plantation forests on soil edaphon and organic matter fractions[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,626:59-68.
APA	Xu, Gang,Liu, Yao,Long, Zhijian,Hu, Shanglian,Zhang, Yuanbin,&Jiang, Hao.(2018).Effects of exotic plantation forests on soil edaphon and organic matter fractions.SCIENCE OF THE TOTAL ENVIRONMENT,626,59-68.
MLA	Xu, Gang,et al."Effects of exotic plantation forests on soil edaphon and organic matter fractions".SCIENCE OF THE TOTAL ENVIRONMENT 626(2018):59-68.