Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/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
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ISSN | 1085-3278 |
EISSN | 1099-145X |
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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