干旱区生态环境知识资源中心(Arid): Natural grassland as the optimal pattern of vegetation restoration in arid and semi-arid regions: Evidence from nutrient limitation of soil microbes

Arid

DOI	10.1016/j.scitotenv.2018.08.173
	Natural grassland as the optimal pattern of vegetation restoration in arid and semi-arid regions: Evidence from nutrient limitation of soil microbes
	Cui, Yongxing 1,2; Fang, Linchuan 1; Guo, Xiaobin 3; Han, Fu 1; Ju, Wenliang 2; Ye, Luping 2; Wang, Xia 1,2; Tan, Wenfeng 1; Zhang, Xingchang 1
通讯作者	Fang, Linchuan
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	648 页码:388-397
英文摘要	Soil microbial metabolism is vital for nutrient cycling and aboveground ecosystem stability. A general understanding of microbial metabolism and nutrient limitation under human disturbance in arid and semi-arid regions, which are the largest and most fragile oligotrophic ecosystems globally, however, is still limited. We quantified and compared the characteristics of nutrient limitation of soil microbes under natural/artificial grassland and shrubland, an ecological forest, an economic forest, and sloped cropland in typical arid and semi-arid ecosystems on the Loess Plateau, China. Vegetation restoration significantly affected the activities of extracellular enzymes and ecoenzymatic stoichiometry mainly by affecting soil nutrients and nutrient stoichiometry. A vector analysis of enzyme activity indicated that microbial communities were co-limited by carbon (C) and phosphorus (P) in all types of vegetation restoration. Linear regression indicated that microbial C and P limitations were significantly correlated with the stoichiometry of soil nutrient, suggesting that the balance of nutrient stoichiometry is an important factor maintaining microbial metabolism and elemental homeostasis. C and P limitations in the microbial communities were the lowest in the natural grassland. This implies that both vegetation and microbial communities under the restoration pattern of natural grassland were more stable under environmental stress, so the restoration of natural grassland should be recommended as the preferred option for ecosystem restoration in these arid and semi-arid regions. (C) 2018 Elsevier B.V. All rights reserved.
英文关键词	Vegetation restoration Vector analysis Extracellular enzymes Microbial nutrient limitation Fragile ecosystems
类型	Article
语种	英语
国家	Peoples R China ; Canada
收录类别	SCI-E
WOS记录号	WOS:000447805500037
WOS关键词	EXTRACELLULAR ENZYME-ACTIVITIES ; FOR-GREEN PROGRAM ; LOESS PLATEAU ; ECOENZYMATIC STOICHIOMETRY ; ORGANIC-CARBON ; LAND-USE ; CHINA GRAIN ; NITROGEN ; RHIZOSPHERE ; COMMUNITIES
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
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218593
作者单位	1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Govt Newfoundland & Labrador, Dept Fisheries & Land Resources, Agr Prod & Res Div, Corner Brook, NF A2H 6J8, Canada
推荐引用方式 GB/T 7714	Cui, Yongxing,Fang, Linchuan,Guo, Xiaobin,et al. Natural grassland as the optimal pattern of vegetation restoration in arid and semi-arid regions: Evidence from nutrient limitation of soil microbes[J]. 西北农林科技大学,2019,648:388-397.
APA	Cui, Yongxing.,Fang, Linchuan.,Guo, Xiaobin.,Han, Fu.,Ju, Wenliang.,...&Zhang, Xingchang.(2019).Natural grassland as the optimal pattern of vegetation restoration in arid and semi-arid regions: Evidence from nutrient limitation of soil microbes.SCIENCE OF THE TOTAL ENVIRONMENT,648,388-397.
MLA	Cui, Yongxing,et al."Natural grassland as the optimal pattern of vegetation restoration in arid and semi-arid regions: Evidence from nutrient limitation of soil microbes".SCIENCE OF THE TOTAL ENVIRONMENT 648(2019):388-397.