干旱区生态环境知识资源中心(Arid): Comparison of growth of annual crops used for salinity bioremediation in the semi-arid irrigation area

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DOI	10.17221/499/2018-PSE
	Comparison of growth of annual crops used for salinity bioremediation in the semi-arid irrigation area
	Gelaye, Kidia K.1,2; Zehetner, Franz 3; Loiskandl, Willibald 1; Klik, Andreas 1
通讯作者	Gelaye, Kidia K.
来源期刊	PLANT SOIL AND ENVIRONMENT
ISSN	1214-1178
EISSN	1805-9368
出版年	2019
卷号	65 期号:4 页码:165-171
英文摘要	The decline of soil organic carbon (SOC) has aggravated salinity-related problems in semi-arid irrigation areas of the Awash river basin, Ethiopia. This study aimed at evaluating the performance of potential remediation crops on saline soil and their effectiveness for remediating soil salinity and improving pH, SOC, bulk density (BD) and hydraulic conductivity (HyCo). Rhodes grass (RHG), alfalfa (ALF), sudangrass (SUG) and blue panicgrass (Retz) (BPG) were grown in saline (3-13.9 dS/m) field plots. The crop biomass was incorporated into the soil immediately before flowering. The results show that at high soil salinity levels, BPG and SUG grew well, with the harvesting frequency of BPG being much higher than for SUG. Conversely, the growth of ALF and RHG was strongly inhibited by high soil salinity. Significant (P < 0.05) reduction of soil salinity levels (-3.2 dS/m) and related ionic concentrations, an increase of SOC (0.8% to 1.6%) and improvement of BD and HyCo were observed in BPG plots. The fast-growing nature of BPG in the hot climate of the experimental area resulted in harvests every three weeks and promoted the incorporation of high amounts of biomass to the soil and efficient soil salinity remediation. At moderately saline conditions, ALF also showed a great potential for salinity reclamation (-1.8 dS/m) and SOC accumulation. The cultivation of fast-growing annual crops proved an efficient and low-cost strategy for soil salinity mitigation and the reclamation of salinity-associated soil degradation in irrigation agriculture in Ethiopia.
英文关键词	salt tolerance arid conditions drought land degradation forage
类型	Article
语种	英语
国家	Austria ; Ethiopia
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000465309400001
WOS关键词	ORGANIC-MATTER ; SOIL COMPACTION ; WATER
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218054
作者单位	1.Univ Nat Resources & Life Sci, Inst Hydraul & Rural Water Management, Dept Water Atmosphere Environm, Vienna, Austria; 2.Samara Univ, Samara, Ethiopia; 3.Univ Nat Resources & Life Sci Vienna, Inst Soil Res, Dept Forest & Soil Sci, Vienna, Austria
推荐引用方式 GB/T 7714	Gelaye, Kidia K.,Zehetner, Franz,Loiskandl, Willibald,et al. Comparison of growth of annual crops used for salinity bioremediation in the semi-arid irrigation area[J],2019,65(4):165-171.
APA	Gelaye, Kidia K.,Zehetner, Franz,Loiskandl, Willibald,&Klik, Andreas.(2019).Comparison of growth of annual crops used for salinity bioremediation in the semi-arid irrigation area.PLANT SOIL AND ENVIRONMENT,65(4),165-171.
MLA	Gelaye, Kidia K.,et al."Comparison of growth of annual crops used for salinity bioremediation in the semi-arid irrigation area".PLANT SOIL AND ENVIRONMENT 65.4(2019):165-171.