干旱区生态环境知识资源中心(Arid): Natural recovery rates of moss biocrusts after severe disturbance in a semiarid climate of the Chinese Loess Plateau

Arid

DOI	10.1016/j.geoderma.2018.09.054
	Natural recovery rates of moss biocrusts after severe disturbance in a semiarid climate of the Chinese Loess Plateau
	Xiao, Bo 1,2; Hu, Kelin 1; Veste, Maik 3,4; Kidron, Giora J.5
通讯作者	Xiao, Bo
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2019
卷号	337 页码:402-412
英文摘要	Biocrusts are vulnerable to large scale disturbances including trampling activities, and their recovery rates are highly variable with estimates fluctuating by more than one order of magnitude, from < 5 years (very fast) to > 250 years (very slow). Also, the development of microbial abundance and community diversity of biocrusts after disturbances is poorly understood. In a semiarid climate of the Chinese Loess Plateau, we conducted a recovery experiment on well-developed moss biocrusts after a severe disturbance, during which the entire upper 3 cm of the surface was removed. In the following nine years, the general characteristics and microbial community of the recovering and undisturbed biocrusts as well as a substrate with no crust (bare sand) were periodically determined. Through linear or logistic extrapolation of the observed recovery rates, the recovery time of the biocrusts after disturbance was estimated by both biocrust characteristics and microbial community. Recovery time yielded the following estimates: a) coverage within 3 years, b) thickness within 8 years, c) biomass within 9-13 years, and d) cultivable microbial density within 11-13 years. More importantly, the recovery time of the disturbed moss-biocrusts estimated by the number of bacteria and fungi was similar to 10 and 20 years, respectively, and that estimated by the bacterial and fungal community diversity was 12-14 and 12-16 years, respectively. In conclusion, moss biocrusts would take 15-20 years to achieve full recovery, which was shorter than many previously published estimates that regarded biocrusts and especially moss-dominated biocrusts to have a long recovery time of hundreds of years. However, it should be also kept in mind that very fast recovery ( < 5 years) of biocrusts was less reliable because such estimations are mostly based on visual cover only rather than on the multi-variables of the recovering biocrusts.
英文关键词	Biological soil crust Microbiotic crust Soil microbial community Soil microbial diversity High-throughput sequencing Best-fit asymptote model
类型	Article
语种	英语
国家	Peoples R China ; Germany ; Israel
收录类别	SCI-E
WOS记录号	WOS:000456761500042
WOS关键词	BIOLOGICAL SOIL CRUSTS ; MICROBIAL COMMUNITY STRUCTURE ; TENGGER DESERT ; SPATIAL-DISTRIBUTION ; BACTERIAL COMMUNITIES ; TEMPORAL VARIABILITY ; PHYSICAL DISTURBANCE ; SUCCESSIONAL STAGES ; FUNGAL COMMUNITIES ; NEGEV DESERT
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	西北农林科技大学 ; 中国农业大学 ; Hebrew University of Jerusalem
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215919
作者单位	1.China Agr Univ, Coll Resources & Environm Sci, 2 Yuanmingyuan West Rd, Beijing 100193, Peoples R China; 2.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Diyland Fanning Loess P, Yangling 712100, Shaanxi, Peoples R China; 3.Univ Hohenheim, Inst Bot 210, D-70599 Stuttgart, Germany; 4.Brandenburg Univ Technol Cottbus Senftenberg, Soil Protect & Recultivat, D-03046 Cottbus, Germany; 5.Hebrew Univ Jerusalem, Inst Earth Sci, Givat Ram Campus, IL-91904 Jerusalem, Israel
推荐引用方式 GB/T 7714	Xiao, Bo,Hu, Kelin,Veste, Maik,et al. Natural recovery rates of moss biocrusts after severe disturbance in a semiarid climate of the Chinese Loess Plateau[J]. 西北农林科技大学, 中国农业大学, Hebrew University of Jerusalem,2019,337:402-412.
APA	Xiao, Bo,Hu, Kelin,Veste, Maik,&Kidron, Giora J..(2019).Natural recovery rates of moss biocrusts after severe disturbance in a semiarid climate of the Chinese Loess Plateau.GEODERMA,337,402-412.
MLA	Xiao, Bo,et al."Natural recovery rates of moss biocrusts after severe disturbance in a semiarid climate of the Chinese Loess Plateau".GEODERMA 337(2019):402-412.