干旱区生态环境知识资源中心(Arid): Physicochemical mechanisms underlying soil and organic amendment effects on runoff P losses

Arid

DOI	10.1002/ldr.3607
	Physicochemical mechanisms underlying soil and organic amendment effects on runoff P losses
	Mamedov, Amrakh I.1,2,3; Bar-Yosef, Benayahu 1; Levkovich, Irit 1; Fine, Pinchas 1; Silber, Avner 1; Levy, Guy J.1
通讯作者	Mamedov, Amrakh I.
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2020
卷号	31 期号:16 页码:2395-2404
英文摘要	Phosphorus depletion from cultivated lands by runoff is a significant contributor to soil chemical degradation. Our objective was to elucidate the mechanisms through which soil and organic matter amendments affect rain-induced runoff P losses in Mediterranean soils. Clay, loam, and loamy sand mixed with noncomposted activated sludge (AS), manure compost (MC), industrial humic acid (HA), orthophosphate (Pi), or inositol hexaphosphate (IHP) were subjected to six consecutive artificial rainstorms. Adding amendments significantly increased runoff available Pi loss (the sum of solution and sediments bicarbonate extractable Pi) for all soils. The order of loss (Pi, mg m(-2)) was soil dependent; greatest and lowest in the loam and loamy sand, respectively (loam: Pi[270] > IHP[128] > AS[108] > MC[97] > HA[49] > Control[33], and loamy sand: AS[42] > HA[23] > Pi[22] > IHP[18] > MC[13] > Control[4]), although order of runoff and soil loss were clay > loam > loamy sand. Treating with IHP and Pi at a similar total P level led to comparable cumulative total-P runoff losses, but runoff available Pi loss was much greater in the Pi treatment of soils with higher clay content (clay > loam > loamy sand). A derived isotherm relating sediment Olsen Pi to dissolved reactive Pi (DRP) concentration in runoff was found useful for estimating runoff Pi losses from measured DRP, runoff volume, and sediment concentration. The results could be explained by the impact of the amendments on soil structure stability, sealing, runoff, and erosion levels associated with soil physical and chemical degradation.
英文关键词	bicarbonate soluble P arid and semi-arid regions humic acid Langmuir P adsorption pH runoff P losses runoff sediment soil texture
类型	Article
语种	英语
国家	Israel ; Japan ; Turkey
收录类别	SCI-E
WOS记录号	WOS:000527050200001
WOS关键词	HUMIC-ACID ; AGRICULTURAL PHOSPHORUS ; AMENDING SOIL ; MANURE ; PHOSPHATE ; SLUDGE ; ORTHOPHOSPHATE ; EXTRACTION ; COMPLEXES ; TRANSPORT
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/2XILL650/315135
作者单位	1.Agr Res Org, Volcani Ctr, Inst Soil Water & Environm Sci, IL-7505101 Bet Dagan, Israel; 2.Tottori Univ, Fac Agr, Arid Land Res Ctr, Tottori 6680001, Japan; 3.OMU, Fac Agr, TR-55139 Samsun, Turkey
推荐引用方式 GB/T 7714	Mamedov, Amrakh I.,Bar-Yosef, Benayahu,Levkovich, Irit,et al. Physicochemical mechanisms underlying soil and organic amendment effects on runoff P losses[J],2020,31(16):2395-2404.
APA	Mamedov, Amrakh I.,Bar-Yosef, Benayahu,Levkovich, Irit,Fine, Pinchas,Silber, Avner,&Levy, Guy J..(2020).Physicochemical mechanisms underlying soil and organic amendment effects on runoff P losses.LAND DEGRADATION & DEVELOPMENT,31(16),2395-2404.
MLA	Mamedov, Amrakh I.,et al."Physicochemical mechanisms underlying soil and organic amendment effects on runoff P losses".LAND DEGRADATION & DEVELOPMENT 31.16(2020):2395-2404.