干旱区生态环境知识资源中心(Arid): Effects of terracing on root distribution of Pinus tabulaeformis Carr. forest and soil properties in the Loess Plateau of China

Arid

DOI	10.1016/j.scitotenv.2020.137506
	Effects of terracing on root distribution of Pinus tabulaeformis Carr. forest and soil properties in the Loess Plateau of China
	Qi, Yulin; Wei, Wei; Li, Junran; Chen, Cungen; Huang, Yuanyuan
通讯作者	Chen, CG
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2020
卷号	721
英文摘要	Terracing is one of the most effective ecological engineering practices that improve soil anti-erosivity properties and support plant growth in the dryland loess hilly area and other similar regions. The objective of the study was to understand the vertical distribution of root in different terraces and their relationships with soil environmental factors in the Loess Plateau of China. The vertical root distribution in the 0-400 cm soil profile, fine root distribution and soil moisture, soil nutrients (soil organic carbon, total nitrogen, and total phosphorus) and soil anti-erosivity in 0-160 cmsoil profiles (every 20 cm for one layer) were investigated using the ground-penetrating radar and soil coring methods in a Pinus tabulaeformis Carr. forest under three terrace types during the growing season of 2018. We highlight several key findings here. First, level benches had the highest root density (18.14 kg m(-2)), followed by fish-scale pits (13.95 kg m(-2)) and reverse-slope terraces (9.84 kg m(-2)), as well as the highest soilwater content, nutrients and soil stability. Second, terracing caused significant differences in root distribution (P < 0.05), leading to the variation of soilmoisture, nutrients, anti-erosivity (explained over 80% variation) and reduced spatial heterogeneities of soil water content and nutrients. Third, fine root density parameters attained the highest values in the topsoil (0-40 cm soil layer) and decreased with increasing soil depth in all the three terrace types (P < 0.05). Finally, fine roots contributed to soilwater improvement, nutrient promotion and soil stabilization, while higher density of coarse rootsmight consume soil nutrients and reduce soil anti-erosivity. We thus suggest that level benches could be a more suitable terracing measure for plantation of P. tabulaeformis Carr., and to achieve soil melioration and fixation during the ecosystem restoration process in the Loess Plateau and other arid and semiarid regions. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Root density Fine root Soil properties Terracing Loess Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000535900200015
WOS关键词	NET PRIMARY PRODUCTION ; PLANT-ROOTS ; VERTICAL-DISTRIBUTION ; LAND PREPARATION ; VEGETATION TYPE ; CARBON STOCKS ; QUERCUS-ILEX ; FINE ROOTS ; EROSION ; BIOMASS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	西北农林科技大学 ; Commonwealth Scientific and Industrial Research Organisation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324551
作者单位	[Qi, Yulin; Chen, Cungen] Northwest A&F Univ, Coll Forestry, Yangling 712100, Shaanxi, Peoples R China; [Qi, Yulin; Wei, Wei] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China; [Li, Junran] Univ Tulsa, Dept Geosci, Tulsa, OK 74104 USA; [Huang, Yuanyuan] CSIRO Oceans & Atmosphere, Aspendale, Vic 3195, Australia
推荐引用方式 GB/T 7714	Qi, Yulin,Wei, Wei,Li, Junran,et al. Effects of terracing on root distribution of Pinus tabulaeformis Carr. forest and soil properties in the Loess Plateau of China[J]. 西北农林科技大学, Commonwealth Scientific and Industrial Research Organisation,2020,721.
APA	Qi, Yulin,Wei, Wei,Li, Junran,Chen, Cungen,&Huang, Yuanyuan.(2020).Effects of terracing on root distribution of Pinus tabulaeformis Carr. forest and soil properties in the Loess Plateau of China.SCIENCE OF THE TOTAL ENVIRONMENT,721.
MLA	Qi, Yulin,et al."Effects of terracing on root distribution of Pinus tabulaeformis Carr. forest and soil properties in the Loess Plateau of China".SCIENCE OF THE TOTAL ENVIRONMENT 721(2020).