Effect of particulate organic matter fractions on the distribution of heavy metals with aided phytostabilization at a zinc smelting waste slag site

2019 ◽  
Vol 253 ◽  
pp. 330-341 ◽  
Author(s):  
Youfa Luo ◽  
Yonggui Wu ◽  
Jie Shu ◽  
Zhixue Wu
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Particulate Organic Matter ◽  
Zinc Smelting ◽  
Organic Matter Fractions

Influence of compost on the physical properties and organic matter fractions of a fine sandy loam throughout the cycle of a potato rotation

2004 ◽  
Vol 84 (2) ◽  
pp. 211-218 ◽  
Author(s):  
M. R. Carter ◽  
J. B. Sanderson ◽  
J. A. MacLeod
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Physical Properties ◽  
Particulate Organic Matter ◽  
Sandy Loam ◽  
Red Clover ◽  
Soil Physical Properties ◽  
Fine Sandy Loam ◽  
Organic Matter Fractions ◽  
Potato Rotation

Potato (Solanum tuberosum L.) rotations often require organic amendments to maintain or improve soil organic matter levels and soil physical properties. However, beneficial effects of compost can be modified by time of application and rotating tillage depth and intensity. This study was conducted to evaluate the effect of compost applied once at different phases in a 3-yr potato, barley (Hordeum vulgare L.), and red clover (Trifolium pretense L.) rotation on a range of soil physical properties and organic matter fractions for a Charlottetown fine sandy loam (Orthic Humo-Ferric Podzol) in Prince Edward Island. Soil samples (0–8 cm) were obtained during the second cycle of the rotation (after two compost applications) in the fifth year of the experiment. Soil properties were influenced by compost addition, time of compost addition, and crop phase. Compost-induced benefits in soil physical properties (bulk density, macro-porosity, oxygen diffusion rate, shear vane strength, water-filled pore space) were mainly expressed in the red clover phase of the rotation, where soil density was relatively high compared to the barley and potato phases, due to the absence of tillage. The soil physical parameters, however, were mainly within their established optimum ranges for this soil type. Soil water content at −0.033 MPa was increased by compost in the potato phase, compared to the control. Soil organic matter was influenced by both compost and crop C inputs. Compost increased soil particulate organic matter (POM) in the potato and barley phases. Due to differences in crop residue inputs, compost-related differences in organic matter were minimized in the red clover phase of the rotation. Compost addition increased potato tuber yield above the maximum yield obtained with nitrogen application. This “non-nitrogen” compost yield effect may be related to the slight, but significant, improvement in soil water-holding capacity. Overall , compost application in an intensive 3-yr potato rotation provided benefits for potato productivity and in both soil physical and biological properties. Key words: Soil organic carbon, particulate organic matter, soil physical properties, compost amendment, potato yield, eastern Canada

scholarly journals Long-term effect of no-tillage on soil organic matter fractions in rainfed Aragon (NE Spain) .

2014 ◽  
Vol 1 ◽  
Author(s):  
Nuria Blanco-Moure ◽  
Ana Bielsa ◽  
Ricardo Gracia ◽  
María Victoria López
Keyword(s):  
Organic Matter ◽  
Particulate Organic Matter ◽  
Agricultural Soils ◽  
Soil Surface ◽  
Term Effect ◽  
No Tillage ◽  
Long Term Effect ◽  
Organic Matter Fractions ◽  
Ne Spain

This paper assesses the long-term effect of no-tillage (NT) on soil organic carbon (OC) content and its distribution among different organic matter fractions in rainfed agrosystems of Aragón (NE Spain). Adjacent fields of NT, conventional tillage (CT) and natural soils (NAT) were compared in three different cereal production areas. In the soil surface, the higher OC content found in the NAT soils was due to the particulate organic matter. In the case of agricultural soils, in general, the fractions responsible for the OC increase under NT were the fine particulate organic matter and the mineral-associated organic matter occluded within stable microaggregates.

Carbon and nitrogen properties of particulate organic matter fractions in an Alfisol in the mid-Southern, USA

2020 ◽  
Vol 20 ◽  
pp. e00248
Author(s):  
Johan Desrochers ◽  
Kristofor R. Brye ◽  
Edward Gbur ◽  
Erik D. Pollock ◽  
Mary C. Savin
Keyword(s):  
Organic Matter ◽  
Particulate Organic Matter ◽  
Carbon And Nitrogen ◽  
Organic Matter Fractions

Fractionation of heavy metals in sediment cores from the Ell-Ren River, Taiwan

1998 ◽  
Vol 37 (6-7) ◽  
pp. 217-224 ◽  
Author(s):  
L. J. Tsai ◽  
K. C. Yu ◽  
J. S. Chang ◽  
S. T. Ho
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Organic Matter ◽  
Metal Binding ◽  
Multivariate Analyses ◽  
Sediment Cores ◽  
Extraction Procedure ◽  
Sediment Depth ◽  
Heavy Metal Binding ◽  
Organic Matter Fractions

Fractionation of heavy metals (Cr, Cu, Co, Zn, Ni, and Pb) in sediment cores taken from three heavily polluted locations of the Ell-Ren River in southern Taiwan was studied. After the three sediment cores were separated into several depth sections, sequential extraction procedure was used to determine the variations in heavy metal binding fractions (exchangeable, bound to carbonates, bound to Mn oxides, bound to Fe oxides, and bound to organic matter) with different sediment depth, and followed by multivariate analyses. It turns out that a deeper sediment depth tended to result in smaller amounts of total extractable heavy metals (TEHMs), indicating that heavy metal pollution of the river has been intensifying these years. The decreasing order of TEHMs was: Zn > Cu > Pb > Cr > Ni > Co. The TEHMs Zn and Cu detected from different depth of the three sediment cores were mainly originated from “bound to carbonates” and “bound to organic matter” fractions, respectively. Also, the percentages of the heavy metals contained in each of the five binding fractons only slightly varied with sediment depth. From multivariate analyses, all the heavy metals except Co behaved similarly and might be discharged from the same pollution sources.

Particulate Organic Matter and Heavy Metals in Ligurian Open Sea

1988 ◽  
Vol 3 (4) ◽  
pp. 313-323 ◽  
Author(s):  
M. Fabiano ◽  
F. Baffi ◽  
P. Povero ◽  
R. Frache
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Particulate Organic Matter ◽  
Open Sea
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