Physical properties of chernozems on slopes in the landscape farming system

Smirnova, L. G.; Novykh, L. L.; Pelekhotse, E. A.

doi:10.1134/s1064229306030069

Cited by 6 publications

(7 citation statements)

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“…High values of dMWD usually indicate high water permeability and air capacity but lower erodability of soil. In countries in Eastern Europe, the structural coefficient (Ks) is principally used to describe the structural status of soils (Shein et al, 2001;Smirnova et al, 2006). This coefficient stresses the proportion of agronomically valuable fractions (10-0.25 mm) in relation to the proportion of >10 and <0.25 mm fractions.…”

Section: Introductionmentioning

confidence: 99%

Soil dry aggregate size distribution: effects of soil type and land use

Ćirić¹,

Manojlovic²,

Nešić³

et al. 2012

J. Soil Sci. Plant Nutr.

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Soil structure is an important physical property of soil and has a great impact on the environment and agriculture. Dry aggregate size distribution and related soil structure indices are essential parameters in understanding the structural state of the soil. This study was conducted to determine the effects of different soil types and land uses on structure parameters and to relate them to selected soil properties. The investigation was performed on five soil types (Arenosols, Fluvisols, Chernozems, Gleysols and Solonetz), each from three different locations and under three different land uses (cropland, meadow and forest), so that a total of 135 undisturbed soil samples were collected. Dry sieving analysis was performed to obtain eight aggregate size classes (ASCs) (>10, 10-5, 5-3, 3-2, 2-1, 1-0.5, 0.5-0.25 and <0.25mm). The results suggest a highly significant impact of soil type on all ASCs and structure indices. Land use has a highly significant impact on the >10, 5-3 and 3-2 mm ASCs. Chernozems and Gleysols have more favorable structure than Arenosols, Fluvisols and Solonetz. Long term cultivation leads to the deterioration of soil structure and the formation of clods. Forest soils have a significantly better structure than soils under meadows and croplands. The application of principal component analysis and regression models identifies water retention at -33 kPa, bulk density and pH value as for the most important factors in predicting dMWD and dGMD.

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Section: Introductionmentioning

confidence: 99%

Soil dry aggregate size distribution: effects of soil type and land use

Ćirić¹,

Manojlovic²,

Nešić³

et al. 2012

J. Soil Sci. Plant Nutr.

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“…That means that under the same climatic conditions the factor of relief is not necessarily determinant for Chernozems. The practice proves that relief can realize its erosion potential only in case of Chernozems weakened by irreversible changes in the organic and mineral components of soil plasma (Mirtshulava, 1970;Kuznyetsov and Glazunov, 2004;Smirnova et al, 2006).…”

Section: Methodology Study Region and Field Samplingmentioning

confidence: 99%

“…Such changes lead to comminution of the soil macro-and micro-structure, reduction of its hardness and water resistance, boosting of lumpiness of the arable and under-plough layers, formation of the surface crust and underplough pan, condensation of the humus horizon, and reduction of moisture capacity and water permeability of Chernozems. Being the object of intensive use in grain-tilled crop rotations on the slopes, Chernozems with degraded clay plasma in the arable horizon are the favourable substrate for the development of erosion processes (Smirnova, Novykh and Pelekhotse, 2006;Alekseev, 2012).…”

Section: Mineralogical Composition Of Clay Plasmamentioning

confidence: 99%

Untitled

2022

GJNR

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Women in traditional societies have a close connection with the environment through their roles as farmers, collectors of water and firewood, caregivers to livestock and, sometimes, as priestesses and healers. The gender roles assigned in traditional societies bring women into direct contact with the natural resources for management of their daily household chores. Therefore, any loss of biodiversity has a direct impact on the lives of women, families and society at large. In the context of the Karbis, a major ethnic group of Assam, India, forests are central to their worldview and all aspects of their socio-cultural life. It is important to note that the Karbi belief system gives reverence to nature worship and the forest deities are called Longri Arnam. As such, sacred groves are among one of the best practices of biodiversity conservation that are also associated with traditional knowledge systems in different ecological zones. They are preserved mainly through observance of taboos and animistic rituals. In recent times, forest degradation has become a major concern and it is necessary to understand the role of traditional knowledge systems vis-a-vis their relation to ecological heritage and conservation. This paper examines the ways in which women in Karbi society have directly or indirectly acted as agents of environmental conservation. Using historical methodology, the study attempts to analyze interface between women and environment in the society with special reference to women's contribution to the society in combating climate change.

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“…The studied soils have undergone changes due to many years of moldboard tillage, fertilization, melioration and other measures. Deterioration of water-physical properties due to global tillage is given in a number of publications [Moreno, 1997;Komissarov & Klik, 2020], including for chernozems [Smirnova, 2006;Medvedev, 2011;Kogut et al, 2019]. Previous studies [Trofimova, 2018] indicate that the number of agronomically beneficial soil aggregates in the 0-30 cm layer of chernozems, both ordinary and leached, under steam windrows exceeds the number under different tillage systems: moldboard, shallow no-moldboard, and No-till.…”

Section: Crop Yieldmentioning

confidence: 99%

Assessment of the Effect of Sunflower Agrocenosis on the Characteristics of the Structural and Aggregate Composition of Typical Black Soil

Voitovyk,

Butenko,

Tkachenko

et al. 2024

J. Ecol. Eng.

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The research was conducted on the Bila Tserkva National Agrarian University experimental field on a typical deep, low-humus chernozem. The methods of main cultivation in the sunflower agrocenosis of grain-row crop rotation had a major influence on the soil structuring processes. The use of moldboard and no-moldboard tillage increased the number of the most agronomically beneficial aggregates (0.25-10 mm) in the 0-10 cm soil's layer at the beginning of the sunflower growing season by 6.0% compared to shallow no-moldboardof tillage the soil. By the end of the growing season in the sunflower agrocenosis in the 0-30 cm soil layer, compared to the beginning of the crop growing season, the number of agronomically beneficial aggregates (0.25-10 mm) decreased, the number of fractions larger than 10 mm and fractions smaller than 0.25 mm increased. The coefficient of structure for moldboard and no-moldboard tillage significantly increased compared to shallow no-moldboardof tillage. The use of shallow no-moldboardof tillage and moldboard with no-moldboardof tillage was led to an increase in the content of stable aggregates by 1.2-7.5%. The highest yield of sunflower was recorded for the use of moldboard with no-moldboardof tillage -2.72 t/ha, which is significantly higher than other variants. The use of shallow no-moldboardof tillage for 10-12 cm with disc tools led to a notable decrease in productivity compared to the control. Improving the water resistance of soil aggregates during moldboard and no-moldboard tillage and shallow no-moldboardof tillage helps to preserve the soil's potential fertility.

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Physical properties of chernozems on slopes in the landscape farming system

Cited by 6 publications

References 0 publications

Soil dry aggregate size distribution: effects of soil type and land use

Soil dry aggregate size distribution: effects of soil type and land use

Untitled

Assessment of the Effect of Sunflower Agrocenosis on the Characteristics of the Structural and Aggregate Composition of Typical Black Soil

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