Influence of parent material and soil type on the root chemistry of forest species grown on acid soils

2004 ◽  
Vol 193 (3) ◽  
pp. 307-320 ◽  
Author(s):  
M.Camps Arbestain ◽  
C Mourenza ◽  
E Álvarez ◽  
F Macı́as
Keyword(s):  
Soil Type ◽  
Acid Soils ◽  
Parent Material ◽  
Forest Species ◽  
Root Chemistry

scholarly journals Polish Soil Classification, 6th edition – principles, classification scheme and correlations

2019 ◽  
Vol 70 (2) ◽  
pp. 71-97 ◽  
Author(s):  
Cezary Kabała ◽  
Przemysław Charzyński ◽  
Jacek Chodorowski ◽  
Marek Drewnik ◽  
Bartłomiej Glina ◽  
...  
Keyword(s):  
Soil Type ◽  
Classification Scheme ◽  
Soil Classification ◽  
Parent Material ◽  
Soil Taxonomy ◽  
Soil Science Society ◽  
Sixth Edition ◽  
Living Organisms ◽  
Diagnostic Horizons ◽  
Scientific System

Abstract The sixth edition of the Polish Soil Classification (SGP6) aims to maintain soil classification in Poland as a modern scientific system that reflects current scientific knowledge, understanding of soil functions and the practical requirements of society. SGP6 continues the tradition of previous editions elaborated upon by the Soil Science Society of Poland in consistent application of quantitatively characterized diagnostic horizons, properties and materials; however, clearly referring to soil genesis. The present need to involve and name the soils created or naturally developed under increasing human impact has led to modernization of the soil definition. Thus, in SGP6, soil is defined as the surface part of the lithosphere or the accumulation of mineral and organic materials permanently connected to the lithosphere (through buildings or permanent constructions), coming from weathering or accumulation processes, originated naturally or anthropogenically, subject to transformation under the influence of soil-forming factors, and able to supply living organisms with water and nutrients. SGP6 distinguishes three hierarchical categories: soil order (nine in total), soil type (basic classification unit; 30 in total) and soil subtype (183 units derived from 62 unique definitions; listed hierarchically, separately in each soil type), supplemented by three non-hierarchical categories: soil variety (additional pedogenic or lithogenic features), soil genus (lithology/parent material) and soil species (soil texture). Non-hierarchical units have universal definitions that allow their application in various orders/types, if all defined requirements are met. The paper explains the principles, classification scheme and rules of SGP6, including the key to soil orders and types, explaining the relationships between diagnostic horizons, materials and properties distinguished in SGP6 and in the recent edition of WRB system as well as discussing the correlation of classification units between SGP6, WRB and Soil Taxonomy.

scholarly journals Penentuan Jenis Tanah untuk Menghasilkan Genteng Berkualitas Menggunakan Fuzzy ELECTRE

2020 ◽  
Vol 5 (1) ◽  
pp. 32-36
Author(s):  
Mufarrohah Mufarrohah ◽  
Tony Yulianto ◽  
Faisol Faisol
Keyword(s):  
Decision Support ◽  
Decision Support System ◽  
Support System ◽  
Soil Type ◽  
Recommendation System ◽  
Black Soil ◽  
Parent Material ◽  
Red Soil ◽  
Brown Soil ◽  
The Past

Soil is the layer of the earth's surface that comes from parent material which has undergone an advanced process. In the past, roof tiles came from clay that was molded and heated to dry. Therefore, for selecting quality tile, it must be in accordance with the specified soil. Some of the soils that have been selected from tile making are clay clay, red soil, black soil, brown soil (kobih), yellow soil (kombung). while good soil is of course land that can meet the maker of his needs. Some of the criteria for good and quality tile, for example in terms of strength, precision, non-cracking, and yellow ivory. The decision support system is a method designed to assist users in making decisions and can also be used as a quality tile selection recommendation system for makers. This decision support system uses the Fuzzy ELETRE method as a process in determining the best soil type so that the results show that TA (combination of clay, brown (kobih), black) and TC (combination of clay, yellow, black) dominates more than TB (combination). loam, red, black).

Selenium concentration in the blood of ruminants grazing in Northern New South Wales. 2. Relationship with geological, pedological and other variables

1981 ◽  
Vol 32 (3) ◽  
pp. 523 ◽  
Author(s):  
JP Langlands ◽  
JE Bowles ◽  
AJ Smith ◽  
GE Donald
Keyword(s):  
Soil Type ◽  
New South ◽  
New South Wales ◽  
Selenium Concentration ◽  
Cattle Grazing ◽  
Parent Material ◽  
Igneous Rocks ◽  
Podzolic Soils ◽  
South Wales ◽  
Low Concentrations

Selenium concentrations in blood from cattle from 794 farms in northern New South Wales were classified on the basis of underlying parent material, soil type, altitude and rainfall. Blood selenium concentrations declined from west to east, and with increasing rainfall and altitude; low concentrations were particularly evident on both acid and basic igneous rocks. There were significant differences between basalts in different locations and between particular plutonic bodies. Cattle grazing on soils with contrasting and gradational profiles generally had lower selenium concentrations than those grazing on soils with uniform profiles. Podzolic soils and chocolate-prairie and kraznozem-chocolate soil associations were present in areas with low blood selenium concentrations.

EFFETS DES REGIMES HYDRIQUES ET DES pH DU SOL SUR LA REPONSE AU MOLYBDENE DE LA LUZERNE

1986 ◽  
Vol 66 (3) ◽  
pp. 421-435
Author(s):  
J. L. DIONNE ◽  
A. R. PESANT
Keyword(s):  
Soil Moisture ◽  
Key Words ◽  
Soil Ph ◽  
Soil Type ◽  
Sandy Loam ◽  
Acid Soils ◽  
Combined Effect ◽  
Moisture Regimes ◽  
Mo Content

The objectives of this study were to determine the changes in response of alfalfa (cv. Saranac) to molydbenum applications from variations in soil pH and soil moisture. To achieve these ends the test crop was grown on three replicates of the following treatments: Three soils (Ste Rosalie clay, Greensboro loam and Danby sandy loam) adjusted to approximately pH 5.0, 6.5, and 7.5 fertilized at 0.0, 0.1, 0.2 and 0.3 mg Mo kg−1 of soil and maintained at three moisture levels: dry, optimal and saturated. Yields were not affected by molybdenum applications regardless of soil type, soil pH or soil moisture regimes. Mo content of alfalfa increased linearly with rates of Mo from 0.2 ppm to 23 ppm Mo. Liming soil to pH 7.2 produced the same increase of Mo content in alfalfa as applying Mo at the rate of 0.2 mg kg−1 to acid soils. Mo content of alfalfa was also slightly increased by soil moisture. A Mo content of 20 ppm or more was obtained as a result of the combined effect of molybdenum application, liming and soil moisture regimes. The exchangeable Mo content found in soils after the experiment increased with rate of Mo but decreased with increasing soil pH. The uptake of molybdenum was increased so much by liming that the Mo left in soil after cropping was decreased as soil pH increased. Key words: Mo content of soil, Mo content of alfalfa, soil pH, soil moisture, alfalfa

Pyrophosphate as a source of phosphorus for maize in some acid soils from southern Nigeria

1983 ◽  
Vol 100 (2) ◽  
pp. 477-483
Author(s):  
F. O. Uzu ◽  
E. J. Udo ◽  
A. S. R. Juo
Keyword(s):  
Adsorption Capacity ◽  
Soil Type ◽  
Langmuir Isotherm ◽  
Acid Soils ◽  
Bonding Energy ◽  
Energy Index ◽  
Short Term ◽  
Southern Nigeria ◽  
Rate Of Hydrolysis ◽  
Glasshouse Experiment

SUMMARYHydrolysis and sorption reaction of pyrophosphate (PP) in soils and uptake of PP by maize were studied using some acid soils from southern Nigeria. Rate of hydrolysis varied with the soil type, and half-lives of hydrolysis ranged from 10 to over 40 days in unsterilized soils and more than 40 days in all cases when the soils were sterilized. An appreciable fraction (over 40%) of the added PP resisted hydrolysis, the effect being more pronounced in the sterilized soils.Sorption of both PP and orthophosphate (OP) by soils followed the Langmuir isotherm. The adsorption capacity and bonding energy index for all soils were greater for PP than for OP.A short-term glasshouse experiment showed that PP was as good as OP as a source of P to maize. When the soils were limed to pH 6, PP appeared to be superior to OP.

scholarly journals Clay formation and podzol development from postglacial moraines in Switzerland

Clay Minerals ◽  
1999 ◽  
Vol 34 (2) ◽  
pp. 319-332 ◽  
Author(s):  
D. Righi ◽  
K. Huber ◽  
C. Keller
Keyword(s):  
Acid Soils ◽  
Soil Development ◽  
Parent Material ◽  
Soil Horizon ◽  
Significant Finding ◽  
X Ray Diffraction ◽  
Soil Parent Material ◽  
Fine Clay ◽  
Clay Formation ◽  
Mixed Layers

AbstractThe fine silt (2–5 μm) and fine clay (<0.1 μm) fractions from four acid soils developed from moraines of increasing age (80, 400, 3,000 and 6,500 years old) in Switzerland, were studied by X-ray diffraction and chemical analyses. The soil parent material is homogeneous at the four sites and the soils can be considered as forming a chronosequence of soil development leading to the formation of Podzols. Mineralogical evolution of silt-sized phyllosilicates and fine clay fractions follows different pathways according to their composition and the soil horizon in which they are located. Dioctahedral and trioctahedral minerals in the soil parent material were both weathered in the Bw and Bs horizons but the trioctahedral phase more strongly and faster than the dioctahedral one. Weathering products are mica-vermiculite mixed-layers, vermiculite and finally gibbsite and Fe oxy-hydroxides. Weathering of the trioctahedral fraction was faster in the eluvial A or E horizons than in the B horizons, being almost complete after 3,000 years of soil development. Appreciable weathering of the dioctahedral fraction occurs only in the eluvial horizons leading to the formation of mica-smectite mixed-layers and smectite. Although smectite has been reported in the E horizon of Podzols in different environments, the significant finding in this work is the presence of this mineral in soils developed from the same parent material. This supports the fact that smectite is the end- product of mica alteration in strongly leached and acidified E horizons of Podzols.

scholarly journals Changes in forest cover in Sudety Mountains during the last 250 years: patterns, drivers, and landscape-scale implications for nature conservation

2018 ◽  
Vol 87 (1) ◽  
Author(s):  
Tomasz Henryk Szymura ◽  
Sandra Murak ◽  
Magdalena Szymura ◽  
Małgorzata Wiktoria Raduła
Keyword(s):  
Eighteenth Century ◽  
Population Density ◽  
Soil Type ◽  
Human Population ◽  
Forest Cover ◽  
Forest Area ◽  
Forest Species ◽  
Forest Patch ◽  
Human Population Density ◽  
Ancient Forest

Historical ecology gives a reference point to explain the contemporary state of particular ecosystems as well as entire landscapes. In this study, we examined the quantitative changes in forest cover in the central part of the Sudety Massif (area ca. 1,120 km<sup>2</sup>) during the last 250 years. The information regarding forest patch distribution and its changes was derived by comparison of maps from 1747 and the 1970s drawn at scales of 1:33,000 and 1:25,000, respectively. To examine the effect of environmental variables (topography and soil conditions) and human population density on forest patch distribution and its changes (afforestation, deforestation), a set of 100 circular plots with a diameter of 1 km was established. The influence of explanatory variables was examined using regression tree methods. Changes at the level of the entire landscape were tested using a set of 25 landscape windows (5 × 5 km each). We found that the overall forest cover increased to 36.4% in the twentieth century from 30.4% in the middle of the eighteenth century. The ancient forests constituted 59% of the total forest area existing more recently. The forests in the eighteenth century occurred mostly on steep slopes, deep valley bottoms, and summits. The land relief explains more than half of the total variation in forest distribution (<em>R</em><sup>2</sup> = 0.56). The effects of soil type and human population density were negligible. The contemporary forest pattern results from both land relief and the historical pattern of human population density in the middle of the eighteenth century (<em>R</em><sup>2</sup> = 0.64), while the effect of soil type was negligible. The pattern of deforestation (<em>R</em><sup>2</sup> = 0.53) and afforestation (<em>R</em><sup>2</sup> = 0.36) results from both land relief as well as recent and nineteenth-century human population density. About 83% of the recent forest area is in physical contact with patches of the ancient forest, which provides an optimistic outlook for the migration of ancient forest species into new areas. Furthermore, changes in landscape structure reveal increased connectivity among forest patches, with potential benefits for the migration of forest species with long-range dispersal.

Sign in / Sign up

Export Citation Format

Share Document