Arid
DOI10.1002/ldr.2509
AGGREGATE STABILITY AND WATER RETENTION NEAR SATURATION CHARACTERISTICS AS AFFECTED BY SOIL TEXTURE, AGGREGATE SIZE AND POLYACRYLAMIDE APPLICATION
Mamedov, Amrakh I.1,2; Huang, Chi-hua3; Aliev, Fazil A.4,5; Levy, Guy J.6
通讯作者Mamedov, Amrakh I.
来源期刊LAND DEGRADATION & DEVELOPMENT
ISSN1085-3278
EISSN1099-145X
出版年2017
卷号28期号:2页码:543-552
英文摘要

Understanding the effects of soil intrinsic properties and extrinsic conditions on aggregate stability is essential for the development of effective soil and water conservation practices. Our objective was to evaluate the combined role of soil texture, aggregate size and application of a stabilizing agent on aggregate and structure stability indices (composite structure index [SI], the and n parameters of the VG model and the S-index) by employing the high energy (0-5.0 J kg(-1)) moisture characteristic (HEMC) method. We used aggregates of three sizes (0.25-0.5, 0.5-1.0 and 1.0-2.0 mm) from four semi-arid soils treated with polyacrylamide (PAM). An increase in SI was associated with the increase in clay content, aggregate size and PAM application. The value of increased with the increase in aggregate size and with PAM application but was not affected by soil texture. For each aggregate size, a unique exponential type relationship existed between SI and . The value of n and the S-index tended, generally, to decrease with the increase in PAM application; however, an increase in aggregate size had an inconsistent effect on these two indices. The relationship between SI and n or the S-index could not be generalized. Our results suggest that (i) the effects of PAM on aggregate stability are not trivial, and its application as a soil conservation tool should consider field soil condition, and (ii) , n and S-index cannot replace the SI as a solid measure for aggregate stability and soil structure firmness when assessing soil conservation practices. Copyright (C) 2016 John Wiley & Sons, Ltd.


英文关键词soil conservation stable aggregates pore size distribution soil structure retention curve
类型Article
语种英语
国家Azerbaijan ; Turkey ; USA ; Israel
收录类别SCI-E
WOS记录号WOS:000394955500015
WOS关键词PHYSICAL QUALITY ; ORGANIC-MATTER ; HYDRAULIC CONDUCTIVITY ; EROSION ; LAND ; DEGRADATION ; ERODIBILITY ; RAINFALL
WOS类目Environmental Sciences ; Soil Science
WOS研究方向Environmental Sciences & Ecology ; Agriculture
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/200944
作者单位1.ANAS, Inst Bot, Inst Soil Sci & Agrochem, Baku, Azerbaijan;
2.Selcuk Univ, Konya, Turkey;
3.USDA ARS, Natl Soil Eros Res Lab, W Lafayette, IN USA;
4.Virginia Commonwealth Univ, Coll Humanities & Sci, Richmond, VA USA;
5.Karabuk Univ, Fac Business, Karabuk, Turkey;
6.Agr Res Org, Inst Soil Water & Environm Sci, Bet Dagan, Israel
推荐引用方式
GB/T 7714
Mamedov, Amrakh I.,Huang, Chi-hua,Aliev, Fazil A.,et al. AGGREGATE STABILITY AND WATER RETENTION NEAR SATURATION CHARACTERISTICS AS AFFECTED BY SOIL TEXTURE, AGGREGATE SIZE AND POLYACRYLAMIDE APPLICATION[J],2017,28(2):543-552.
APA Mamedov, Amrakh I.,Huang, Chi-hua,Aliev, Fazil A.,&Levy, Guy J..(2017).AGGREGATE STABILITY AND WATER RETENTION NEAR SATURATION CHARACTERISTICS AS AFFECTED BY SOIL TEXTURE, AGGREGATE SIZE AND POLYACRYLAMIDE APPLICATION.LAND DEGRADATION & DEVELOPMENT,28(2),543-552.
MLA Mamedov, Amrakh I.,et al."AGGREGATE STABILITY AND WATER RETENTION NEAR SATURATION CHARACTERISTICS AS AFFECTED BY SOIL TEXTURE, AGGREGATE SIZE AND POLYACRYLAMIDE APPLICATION".LAND DEGRADATION & DEVELOPMENT 28.2(2017):543-552.
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