Soil parent material prediction for Brazil via proximal soil sensing

AbstractDue to the special sensitivity of typical ecologically fragile areas, a series of human life, mining, and other activities have a greater impact on the environment. In this study, three coal mines in Ordos City on the Loess Plateau were selected as the study area, and the pollution levels of heavy metals in the area were studied by measuring As, Hg, Cr, Cd, Cu, Ni, and Pb in the soil of 131 sampling points. Combined with the concept of “co-occurrence network” in biology, the level of heavy metals in soil was studied using geostatistics and remote sensing databases. The results showed that the concentrations of Hg, Cr, Ni, Cu, and Pb in more than half of the sampling points were higher than the local environmental background value, but did not exceed the risk control value specified by China, indicating that human factors have a greater influence, while Cd and As elements are mainly affected Soil parent material and human factors influence. Heavy metal elements have nothing to do with clay and silt but have an obvious correlation with gravel. Cd, Pb, As and Ni, Cd, Cr are all positively correlated, and different heavy metals are in space The distribution also reflects the autocorrelation, mainly concentrated in the northeast of the TS mining area and the middle of the PS mining area.

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The influence of forest site on rate and extent of soil compaction and profile disturbance of skid trails during ground-based harvesting

Canadian Journal of Forest Research ◽

10.1139/x00-041 ◽

2000 ◽

Vol 30 (8) ◽

pp. 1196-1205 ◽

Cited By ~ 95

Author(s):

J R Williamson ◽

W A Neilsen

Keyword(s):

Root Growth ◽

Soil Compaction ◽

Forest Type ◽

Soil Bulk Density ◽

Parent Material ◽

Forest Site ◽

Undisturbed Soil ◽

Soil Parent Material ◽

Wet Forests

Soil compaction has been considered a principal form of damage associated with logging, restricting root growth and reducing productivity. The rate and extent of soil compaction on skid trails was measured at six field locations covering a range of dry and wet forests. Data was collected for up to 21 passes of a laden logging machine. A similar extent of compaction, averaging 0.17 g·cm-3 increase in total soil bulk density (BD), was recorded for all field sites despite substantial site and soil differences. On average, 62% of the compaction in the top 10 cm of the soil occurred after only one pass of a laden logging machine. The environment under which soils had formed played a major role in determining the BD of the undisturbed soil. Compaction was strongly related to the original BD, forest type, and soil parent material. Soil strengths obtained in the field fell below levels found to restrict root growth. However, reduction in macropores, and the effect of that on aeration and drainage could reduce tree growth. On the wettest soils logged, machine forces displaced topsoils rather than causing compaction in situ. Recommended logging methods and implications for the development of sustainability indices are discussed.

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Soil Parent Material, Weathering, and Primary Particles

Soils in Natural Landscapes ◽

10.1201/b15574-3 ◽

2013 ◽

pp. 13-34

Keyword(s):

Parent Material ◽

Soil Parent Material ◽

Primary Particles

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THE EFFECT OF DRAINAGE CONDITION ON THE REDOX POTENTIAL, LEACHATE COMPOSITION AND MORPHOLOGICAL CHARACTERISTICS OF A SOIL PARENT MATERIAL STUDIED IN THE LABORATORY

Canadian Journal of Soil Science ◽

10.4141/cjss60-017 ◽

1960 ◽

Vol 40 (2) ◽

pp. 121-129 ◽

Cited By ~ 1

Author(s):

J. A. McKeague ◽

C. F. Bentley

Keyword(s):

Redox Potential ◽

Water Table ◽

Morphological Characteristics ◽

Parent Material ◽

Soil Material ◽

Soil Parent Material ◽

Leachate Analysis ◽

Loam Soil ◽

Leachate Composition ◽

Measurable Change

Plastic columns containing a calcareous clay loam soil parent material with and without ground aspen leaves at the surface were maintained under different drainage conditions for 32 months. Distilled water was added at regular intervals. Results of redox potential (Eh) measurements at four depths, leachate analysis and analysis of the soil material are presented.With water table to the surface and a layer of surface leaves, low Eh readings and appreciable iron movement resulted. In a column with fluctuating water table and surface leaves, raising the water table brought about a decrease in the Eh of the soil below the water table. Height of water table had no effect on the Eh of a column which had no leaves at the surface. In columns where the soil material was mixed with quartz sand, leaching brought about marked downward movement of silt and clay size particles. Apart from the removal of soluble salts, there was little measurable change in columns which had no admixture of sand.

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Effects of Soil Parent Material and Climate on the Performance of Vitis vinifera L. cvs. Sauvignon blanc and Cabernet Sauvignon - Part II. Climate, Leaf Analysis, Juice Analysis and Wine Quality

South African Journal of Enology and Viticulture ◽

10.21548/33-2-1117 ◽

2016 ◽

Vol 33 (2) ◽

Author(s):

L.P. Shange ◽

W.J. Conradie

Keyword(s):

Vitis Vinifera ◽

Parent Material ◽

Vitis Vinifera L ◽

Cabernet Sauvignon ◽

Wine Quality ◽

Sauvignon Blanc ◽

Leaf Analysis ◽

Soil Parent Material

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Soil parent material and stand development stage effects on labile soil C and N pools in Chinese fir plantations

Geoderma ◽

10.1016/j.geoderma.2018.11.050 ◽

2019 ◽

Vol 338 ◽

pp. 247-258 ◽

Cited By ~ 9

Author(s):

Yun Zhang ◽

Mulualem Tigabu ◽

Zhigang Yi ◽

Huitong Li ◽

Zheng Zhuang ◽

...

Keyword(s):

Development Stage ◽

Parent Material ◽

Chinese Fir ◽

Stand Development ◽

Soil C ◽

Soil Parent Material ◽

Soil C And N ◽

C And N ◽

C And N Pools

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Lability of Pb in soil: effects of soil properties and contaminant source

Environmental Chemistry ◽

10.1071/en14100 ◽

2014 ◽

Vol 11 (6) ◽

pp. 690 ◽

Cited By ~ 16

Author(s):

Lingchen Mao ◽

Elizabeth H. Bailey ◽

Jonathan Chester ◽

Joseph Dean ◽

E. Louise Ander ◽

...

Keyword(s):

Soil Properties ◽

Soil Ph ◽

Extraction Procedure ◽

Parent Material ◽

Isotopic Dilution ◽

Human Populations ◽

Isotopic Ratios ◽

Contaminant Source ◽

Adverse Health Effects ◽

Soil Parent Material

Environmental context There is growing concern that lead in the environment may cause adverse health effects in human populations. We investigated the combined use of isotopic abundance and isotopic dilution to show how the origins of soil Pb and soil characteristics affect lability. Soil pH and soil Pb content are the dominant controls on Pb lability; the lability of recent petrol-derived Pb is similar to that of other sources in urban soils but greater than geogenic Pb in rural roadside topsoils. Abstract Lability of lead in soils is influenced by both soil properties and source(s) of contamination. We investigated factors controlling Pb lability in soils from (i) land adjacent to a major rural road, (ii) a sewage processing farm and (iii) an archive of the geochemical survey of London. We measured isotopically exchangeable Pb (E-values; PbE), phase fractionation of Pb by a sequential extraction procedure (SEP) and inferred source apportionment from measured Pb isotopic ratios. Isotopic ratios (206Pb/207Pb and 208Pb/207Pb) of total soil Pb fell on a mixing line between those of petrol and UK coal or Pb ore. The main determinant of the isotopically exchangeable Pb fraction (%E-value) was soil pH: %E-values decreased with increasing pH. In rural roadside topsoils, there was also evidence that petrol-derived Pb remained more labile (35%) than Pb from soil parent material (27%). However, in biosolid-amended and London soils, %E-values were low (~25%), covered a restricted range and showed no clear evidence of source-dependent lability.

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