Arid
DOI10.1002/ldr.2510
The Coupling Effects of Using Coal Fly-Ash and Bio-Inoculant for Rehabilitation of Disturbed Biocrusts in Active Sand Dunes
Zaady, Eli1; Katra, Itzhak2; Barkai, Daniel1; Knoll, Yaakov1; Sarig, Shlomo3
通讯作者Zaady, Eli
来源期刊LAND DEGRADATION & DEVELOPMENT
ISSN1085-3278
EISSN1099-145X
出版年2017
卷号28期号:4页码:1228-1236
英文摘要

Active wind-borne sand dunes, which lead to covering of fertile soils and agricultural fields, are one of the main problems in desertified lands worldwide, and stabilizing them poses a significant challenge. Such sand dunes may be naturally stabilized by biocrusts (biological soil crusts). One of the main restraints of biocrust development is the typical lack of fine particles in sand dunes. A possible artificial source of fine particles is coal fly-ash, which is the by-product of power stations and comprises of particles having a diameter of less than 100 mu m. This study tested the influence of the coupling effects of coal fly-ash and bio-inoculant of filamentous cyanobacteria, isolated from natural stabilized sand dunes nearby, on the soil surface of active sands for increasing resistance to wind erosion. Boundary-layer wind tunnel experiments were conducted in experimental plots within a greenhouse for examining the effects of adding coal fly-ash and bio-inoculant to active sands. The biocrust development was evaluated via several physical and bio-physiological variables. In all the physical measurements and the bio-physiological variables, the treatment of sand+inoculum+coal fly-ash showed significant differences from the sand-control. The combination led to the best results of surface stabilization in boundary-layer wind tunnel experiments, with the lowest sand fluxes. The filamentous cyanobacteria use the fine particles of the coal fly-ash as bridges for growing toward and adhering to the large sand particles. The cumulative effects of biocrusts and coal fly-ash enhance soil surface stabilization and may allow long-term sustainability. Copyright (c) 2016 John Wiley & Sons, Ltd.


英文关键词biological soil crusts soil surface stability dry ecosystem land degradation boundary-layer wind tunnel sand flux
类型Article
语种英语
国家Israel
收录类别SCI-E
WOS记录号WOS:000401322900006
WOS关键词BIOLOGICAL SOIL CRUSTS ; PULVERIZED FUEL ASH ; ISRAEL-EGYPT BORDER ; NEGEV DESERT ; WIND EROSION ; TERM IMPACT ; VEGETATION ; WATER ; STABILIZATION ; SURFACE
WOS类目Environmental Sciences ; Soil Science
WOS研究方向Environmental Sciences & Ecology ; Agriculture
来源机构Ben-Gurion University of the Negev
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/200967
作者单位1.Agr Res Org, Inst Plant Sci, Gilat Res Ctr, Dept Nat Resources, IL-85280 Negev, Israel;
2.Ben Gurion Univ Negev, Dept Geog & Environm Dev, IL-84105 Beer Sheva, Israel;
3.Katif Res Ctr, IL-85200 Sdot Negev, Mobile Post Neg, Israel
推荐引用方式
GB/T 7714
Zaady, Eli,Katra, Itzhak,Barkai, Daniel,et al. The Coupling Effects of Using Coal Fly-Ash and Bio-Inoculant for Rehabilitation of Disturbed Biocrusts in Active Sand Dunes[J]. Ben-Gurion University of the Negev,2017,28(4):1228-1236.
APA Zaady, Eli,Katra, Itzhak,Barkai, Daniel,Knoll, Yaakov,&Sarig, Shlomo.(2017).The Coupling Effects of Using Coal Fly-Ash and Bio-Inoculant for Rehabilitation of Disturbed Biocrusts in Active Sand Dunes.LAND DEGRADATION & DEVELOPMENT,28(4),1228-1236.
MLA Zaady, Eli,et al."The Coupling Effects of Using Coal Fly-Ash and Bio-Inoculant for Rehabilitation of Disturbed Biocrusts in Active Sand Dunes".LAND DEGRADATION & DEVELOPMENT 28.4(2017):1228-1236.
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