干旱区生态环境知识资源中心(Arid): Amendments fail to hasten biocrust recovery or soil stability at a disturbed dryland sandy site

Arid

DOI	10.1111/rec.12870
	Amendments fail to hasten biocrust recovery or soil stability at a disturbed dryland sandy site
	Chandler, David G.1; Day, Natalie 2; Madsen, Matthew D.3; Belnap, Jayne2
通讯作者	Day, Natalie
来源期刊	RESTORATION ECOLOGY
ISSN	1061-2971
EISSN	1526-100X
出版年	2019
卷号	27 期号:2 页码:289-297
英文摘要	In most drylands, biological soil crusts (biocrusts), an assemblage of lichens, bryophytes, fungi, green algae, and cyanobacteria, are critical to healthy ecosystem function. However, they are extremely sensitive to disturbance and attempts to facilitate their recovery have had variable success. In this study, we applied soil amendments designed to improve soil surface stability and accelerate biocrust recovery on an area disturbed by oil/gas exploration vehicles. Treatments included: (1) control (one time water only); (2) biocrust-only: biocrust inoculum + nutrients in water; (3) polyacrylamide gels (which are known to stabilize soils) + biocrust inoculum + nutrients in water; (4) gypsum + biocrust inoculum + nutrients in water; and (5) saline (NaCl) solution + biocrust inoculum + nutrients in water. Only the NaCl treatment showed any effects on soil properties and these were only short term. These effects included an increase in soil strength and a reduction in soil aggregate stability, unsaturated hydraulic conductivity (K-h), and cyanobacterial biomass. The inoculated biocrust material failed to develop and even after 10 years, there was only a very low natural recolonization of the plots. These results show that inoculating soils or applying these levels of soil amendments does not guarantee recovery of soil stability or biocrust, and that some sites are unlikely to recover without assistance. Thus, there is a need for more research into ways to enhance soil stability and identify the factors limiting biocrust establishment.
英文关键词	biocrust restoration gypsum PAM produced water soil disturbance soil stability
类型	Article
语种	英语
国家	USA
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000461699300007
WOS关键词	CRUST ; DESERT ; REHABILITATION ; INOCULANT ; PATTERNS ; SURVIVAL ; IMPACTS ; LICHENS ; QUALITY ; DUST
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218453
作者单位	1.Syracuse Univ, Civil & Environm Engn, 151 Link Hall, Syracuse, NY 13244 USA; 2.US Geol Survey, Southwest Biol Sci Ctr, 2290 S West Resource Blvd, Moab, UT 84532 USA; 3.Brigham Young Univ, Dept Plant & Wildlife Sci, 5048 LSB, Provo, UT 84602 USA
推荐引用方式 GB/T 7714	Chandler, David G.,Day, Natalie,Madsen, Matthew D.,et al. Amendments fail to hasten biocrust recovery or soil stability at a disturbed dryland sandy site[J]. United States Geological Survey,2019,27(2):289-297.
APA	Chandler, David G.,Day, Natalie,Madsen, Matthew D.,&Belnap, Jayne.(2019).Amendments fail to hasten biocrust recovery or soil stability at a disturbed dryland sandy site.RESTORATION ECOLOGY,27(2),289-297.
MLA	Chandler, David G.,et al."Amendments fail to hasten biocrust recovery or soil stability at a disturbed dryland sandy site".RESTORATION ECOLOGY 27.2(2019):289-297.