National approaches to evaluation of the degree of soil degradation

Молчанов, Э. Н.; Savin, I. Yu.; Yakovlev, A. S.; Bulgakov, D. S.; Макаров, О. А.

doi:10.1134/s1064229315110113

Cited by 17 publications

(9 citation statements)

References 1 publication

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“…layers [12]. Along with the loss of organic material and nutrients, the effect of soil being dried out by the wind promotes surface compaction [13].…”

Section: Methodsmentioning

confidence: 99%

“…Under the absence of conservationist strategies, which usually occur in secluded areas, grazing, abandonment of farmlands, and deforestation increase the effects of wind erosion, producing significant loss of soil material, mainly from the most fertile layers [12]. Along with the loss of organic material and nutrients, the effect of soil being dried out by the wind promotes surface compaction [13].…”

Section: Introductionmentioning

confidence: 99%

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Tracking Wind Deposits on Fluvisols in a Citrus Orchard in Southeast Spain: A Test in Real Time

et al. 2022

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We used wind-transported particle collectors of our own inhouse design to monitor the sediment flow in a citrus orchard in Southeast Spain. These collectors, which can differentiate sediment collected by direction of origin, are very efficient, economical, and easy to manufacture from thermoplastic filaments with an industrial 3D printer. Data were acquired from six vaned masts, each with four collectors at different heights, and on one of those masts, the collectors included load cells with one end attached to the collector floor and the other end to each oriented compartment in the collectors. The load cell values were interpreted in real time by a microcontroller and amplifier. The remote monitoring system was developed with an internet of things (IoT) platform. The results showed clear predominance of winds from the Northeast after dark, and from the South during the middle of the day. After analyzing the sediment transport rates and their balance, we found that those being deposited in the citrus orchard from the Northeast had a higher carbonate content (mainly calcite), which had an aggregating and therefore stabilizing effect against wind erosion of the soil. Furthermore, significant amounts of highly adhesive phyllosilicates were captured by the upper traps, which also contributed to reducing soil wind erodibility because of their adhesiveness. However, the sediments from the South with much more total transported mass were not deposited in the study zone, but leeward of it and contained a large amount of quartz, promoting abrasion and increasing wind erodibility of the soil.

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“…layers [12]. Along with the loss of organic material and nutrients, the effect of soil being dried out by the wind promotes surface compaction [13].…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tracking Wind Deposits on Fluvisols in a Citrus Orchard in Southeast Spain: A Test in Real Time

et al. 2022

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“…Lozano et al (2013) and Giménez et al (2019) analysed the relationships between wind speed, wind erosion, soil type and vegetation in semiarid regions. Wind erosion influences soil drying and nutrient loss (Molchanov et al, 2015), both of which are conditioned by soil surface compaction. Vegetation protects the soil from wind erosion by reducing wind speed, it also reduces soil erodibility, and traps eroded material (Touré et al, 2011;Leenders et al, 2011;Asensio et al, 2015b).…”

Section: Introductionmentioning

confidence: 99%

Soil wind erosion characterization in south-eastern Spain using traditional methods in front of an innovative type of dust collector

et al. 2020

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The movement of soil particles by the wind can be measured using wind tunnels and collectors, or dust traps. We tested both in Southeast Spain in order to compare movement in four types of soil. Our tests were carried out in a well-tilled orchard on an Anthrosol, an unploughed Leptosol and Arenosol, and finally on an olive-cropped Cambisol. We estimated soil loss using a wind tunnel with a built-in laser-scanner, and then compared the results with records from nine vaned masts, each with four big spring number eight collectors at different heights, and the same for another nine masts but with a new type of dust trap known as the multidirectional. The collectors can differentiate between overall loss and particle deposition, which is not detectable on a larger scale in the tunnel. The results from the big spring number eight traps and our wind tunnel showed a high degree of correlation (R² = 0.933) and an even closer correlation with the multidirectional trap (R² = 0.978). Moreover, the new multidirectional trap collectors are very efficient and easy to manufacture from thermoplastic filaments with an industrial 3D printer.K e y w o r d s: dust collector, semi-arid environment, tilled soil, unploughed soil, wind tunnel

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“…3 дельные среды, химической и биохимической активности присутствующих в них веществ, так и по агрохимическим показателям, определяющим почвенное плодородие и условия питания растений [4][5][6][7][8][9][10][11].…”

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“…М., 1994. 31 3) биологическая и биохимическая; 4) гидрологическая [6,19,20] 12 Исходя из приведенного анализа, по мнению авторов, необходимо внести уточнения в имеющиеся методики оценки деградации почв при непосредственном применении таковых для орошаемых пашни и пастбищ в соответствии с данными, накопленными российскими учеными [24][25][26][27][28][29][30][31][32]. [30] < 10 10-20 21-50 51-70 > 70 Уменьшение водопрочных агрегатов, % от оптимума [22] < 1 1-30 31-50 51-80 > 80 Коэффициент фильтрации 2 , м/сут > 1,0 1,0-0,4 0,3-0,1 0,09-0,01 < 0,01 Общее содержание солей (по величине плотного остатка) [20], % * < 0,30 0,30-0,50 0,51-1,00 1,10-2,00 > 2,00 Кислотно-щелочной фактор [22], в т. ч.: -кислотность, рН (KCl) > 6,0 6,0-5,6 5,5-5,0 5,0-4,5 < 4,5 -щелочность, рН водной суспензии 1:2,5 < 7,5 [24], моль(экв.…”

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Diagnostic Indicators for Assessing Irrigated Arable Land and Pastures Degradation

Manzhina¹,

Dokuchayeva²

2022

LRAHE

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Purpose: determination of diagnostic elements and indicative figures characterizing the degradation processes development in various types of soils of irrigated arable land and pastures. Materials and methods. Reference data and databases collected by various research institutes of our country, normative and methodological documents adopted in the country, as well as publications of domestic and foreign authors served as materials for the study. Complex and retrospective analysis, synthesis and deduction were used as methods. Discussion. The classification of soils by type and level of degradation makes sense in the context of determining the need for measures to preserve and restore soil fertility. Taking into account the specificity and diversity of types and kinds of such an object of assessment as soil, it is necessary to carefully consider the correctness of each indicative factor gradation. An example is: when analyzing the methods for assessing soils by the degree of alkalinity, it was noted that the level gradations vary depending on the type of soil. The table with main diagnostic indicators for assessing the degradation degree of irrigated arable land and pastures is presented in the paper. The form of the table was adopted on the basis of existing regulatory and methodological documents with amendments and additions in the indicators. Conclusions. Based on the analysis, the parameters for assessing the degree of degradation of agricultural land are formed into three groups, based on the order of their discovery: primary (estimated), basic, additional. The main diagnostic indicators and their gradations which make it possible to establish the level, type and evaluate the reasons of soil degradation of agricultural lands with acceptable reliability are identified.

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National approaches to evaluation of the degree of soil degradation

Cited by 17 publications

References 1 publication

Tracking Wind Deposits on Fluvisols in a Citrus Orchard in Southeast Spain: A Test in Real Time

Tracking Wind Deposits on Fluvisols in a Citrus Orchard in Southeast Spain: A Test in Real Time

Soil wind erosion characterization in south-eastern Spain using traditional methods in front of an innovative type of dust collector

Diagnostic Indicators for Assessing Irrigated Arable Land and Pastures Degradation

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