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Soil Systems, Volume 10, Issue 1

2026 January - 20 articles

Cover Story: Phosphorus (P) scarcity—driven by P fixation with aluminum and iron (hydr)oxides—and calcium (Ca) deficiency remain critical challenges in acidic paddy soils. This study investigated P management using humic acid (HA), gypsum (FG), and their combinations (HA + FG). The findings revealed that HA alone is an effective amendment, as it not only promotes P availability but also sustains rice production. In contrast, FG, either alone or combined with HA, induced Ca-P brushite mineral formation, which limits P uptake and rice yield. Although HA + FG improved soil properties, including TOC, N, S, and exchangeable Ca and S, it failed to boost rice yield, as higher TOC causes the stabilization of non-labile organic P (e.g., humic Po and IHP), further reducing P availability and P uptake. Thus, HA alone is a suitable soil amendment for acidic paddy soils. View this paper
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Articles (20)

  • Review
  • Open Access
101 Views
28 Pages

Chemical soil properties contribute to the resilience of soil ecosystems. Healthy soils with optimal nutrient levels, balanced pH and good organic matter content are better able to withstand environmental stresses, such as drought, disease or pests....

  • Article
  • Open Access
174 Views
23 Pages

Soil Carbon Content in Areas with Different Land Uses and Vegetation Cover in the Cerrado–Amazon Transition, Mato Grosso, Brazil

  • Marco Aurélio Barbosa Alves,
  • Daniela Roberta Borella,
  • Frederico Terra de Almeida,
  • Adilson Pacheco de Souza and
  • Daniel Fonseca de Carvalho

The conversion of native forests into agricultural areas without conservation practices can expose tons of soil organic carbon (SOC) to the atmosphere. This study aimed to evaluate the effect of land use and cover (LULC) on C in regions of the Caiabi...

  • Article
  • Open Access
1 Citations
107 Views
15 Pages

A recent report on the future of agriculture by the European Commission emphasizes the need for sustainable development on a farm level to be characterized by measuring ecosystem services with indicators and corresponding thresholds. This case study...

  • Article
  • Open Access
260 Views
25 Pages

This study examined long-term changes in soil carbon stock dynamics 11 and 19 years after fire under different severities at 0–5 and 0–25 cm depths with a digital soil mapping approach. Linear (MLR) and non-linear models (RF, SVR, XGBoost...

  • Article
  • Open Access
165 Views
22 Pages

The surface chemistry of biochar plays a pivotal role in the adsorption and stabilization of soil organic carbon (SOC); however, sorption-mediated mechanisms remain insufficiently understood for biochars derived from invasive plants. In this study, S...

  • Article
  • Open Access
211 Views
12 Pages

In soils, it is key to not simply determine the behavior of the major elements but also understand the fate of trace and ultra-trace elements that can often have disproportionate effects on these complex systems. Soils, including agricultural soils,...

  • Article
  • Open Access
235 Views
18 Pages

The issue of formulating scientifically sound standards for mercury (Hg) content in Arctic soils is becoming increasingly pertinent in view of the rising human impact and climate change, which serve to augment the mobility of Hg compounds and their i...

  • Article
  • Open Access
155 Views
19 Pages

Ecophysiological and Biochemical Adaptation of Thymus saturejoides to Contrasting Soil Conditions in the Western High Atlas Under Climate Change

  • Mohamed El Hassan Bouchari,
  • Abdelilah Meddich,
  • Abderrahim Boutasknit,
  • Redouane Ouhaddou,
  • Boujemaa Fassih,
  • Lahoucine Ech-Chatir,
  • Mohamed Anli and
  • Abdelmajid Haddioui

In the context of climate change, alterations to the physico-chemical properties of soils, particularly in Mediterranean regions, are a growing source of preoccupation. This study analyzes the ecological plasticity and biochemical adaptability of Thy...

  • Article
  • Open Access
182 Views
16 Pages

Assessing the Crucial Role of Marine Fog in Early Soil Development and Biocrust Dynamics in the Atacama Desert

  • María del Pilar Fernandez-Murillo,
  • Erasmo Cifuentes,
  • Antonia Beggs,
  • Marlene Manzano,
  • Ignacio Gutiérrez-Cortés,
  • Constanza Vargas,
  • Camilo del Río and
  • Fernando D. Alfaro

Marine fog is a key non-rainfall water source that sustains microbial activity and transports dissolved nutrients inland, influencing early soil development in hyperarid ecosystems. However, the mechanisms through which sustained fog inputs drive soi...

  • Article
  • Open Access
237 Views
14 Pages

Soil structure is one of the key soil water-physical properties that determine the water–air regime and ultimately affect soil fertility. This study aimed to test different machine learning (ML) methods in combination with environmental variabl...

  • Article
  • Open Access
276 Views
19 Pages

Content of Radionuclides in Soils of Hydraulic Development Areas in Brazil

  • Patrícia da Silva Gomes,
  • Assunção Andrade de Barcelos,
  • João Batista Pereira Cabral,
  • Fernanda Luisa Ramalho,
  • Hudson Moraes Rocha,
  • Valter Antonio Becegato and
  • Alexandre Tadeu Paulino

This study aimed to quantify and assess the spatial distribution of 238U, 232Th, and 40K in the soils of the Espora Hydroelectric Power Plant (Espora HPP) and Queixada Small Hydroelectric Power Plant (Queixada SHPP) watershed (model hydraulic develop...

  • Article
  • Open Access
290 Views
19 Pages

In arid regions, irrigation is essential for sustaining crop production, but irrigation water often contains high levels of salts that may reduce yields. This study aimed to evaluate crop responses to irrigation water with salinity levels exceeding 4...

  • Article
  • Open Access
382 Views
22 Pages

Accurate prediction of soil texture is essential for effective soil management, precision agriculture, and hydrological modeling. This study proposes a novel, data-driven approach for estimating soil texture without the need for laboratory-based anal...

  • Article
  • Open Access
289 Views
16 Pages

Estimation of Effective Cation Exchange Capacity and Exchangeable Iron in Paddy Fields After Soil Flooding

  • Ledemar Carlos Vahl,
  • Roberto Carlos Doring Wolter,
  • Antônio Costa de Oliveira,
  • Filipe Selau Carlos,
  • Robson Bosa dos Reis and
  • Rogério Oliveira de Sousa

In flooded soils, the concentrations of exchangeable Mn2+ and, especially, Fe2+ can be high and must be considered when determining the cation exchange capacity (CEC) of the soil under flooded conditions. However, these reduced forms of Mn and Fe are...

  • Article
  • Open Access
370 Views
20 Pages

Freshwater scarcity in arid regions is driving increased use of saline irrigation, yet salinity severely degrades soil structure and suppresses enzymatic function. To address this critical challenge for sustainable soil management, this study systema...

  • Article
  • Open Access
362 Views
18 Pages

Carbon Forms and Their Dynamics in Soils of the Carbon Supersite at the Black Sea Coast

  • Sergey N. Gorbov,
  • Nadezhda V. Salnik,
  • Suleiman S. Tagiverdiev,
  • Marina V. Slukovskaya,
  • Margarita V. Kochkina,
  • Svetlana A. Tishchenko,
  • Elena V. Gershelis,
  • Vyacheslav V. Kremenetskiy and
  • Alexander V. Olchev

This study is one of the first comprehensive assessments of soil carbon dynamics on the Black Sea coast of Russia, focusing on the role of soils in the terrestrial carbon cycle and the greenhouse gas balance of sub-Mediterranean ecosystems. Our integ...

  • Article
  • Open Access
480 Views
24 Pages

Phytoavailability and Leachability of Heavy Metals and Metalloids in Agricultural Soils Ameliorated with Coal Fly Ash (CFA) and CFA-Treated Biosolids

  • Pinchas Fine,
  • Arie Bosak,
  • Anna Beriozkin,
  • Dorit Shargil,
  • Uri Mingelgrin,
  • Yephet Ben-Yephet,
  • Daniel Kurtzman,
  • Ido Nitzan,
  • Shahar Baram and
  • Oren Buchshtab
  • + 5 authors

Application of CFA-treated biosolids (NVS) offers multiple benefits to agricultural soils, including fertilizer replacement, soil rehabilitation, and disinfection. It also poses a heavy metal(loid)s threat to the agro-environment. NVS (and CFA to som...

  • Article
  • Open Access
557 Views
22 Pages

Influence of Humic Acid and Gypsum on Phosphorus Dynamics and Rice Yield in an Acidic Paddy Soil of Thailand

  • Hartina,
  • Tidarat Monkham,
  • Worachart Wisawapipat,
  • Patma Vityakon and
  • Tanabhat-Sakorn Sukitprapanon

Managing phosphorus (P) in acidic paddy soils is crucial for sustaining rice yields. However, the effects of combined humic acid (HA) and flue gas desulfurization gypsum (FG), a by-product of coal-fired power plants, on P forms remain poorly understo...

  • Review
  • Open Access
753 Views
24 Pages

Impacts of Micro/Nanoplastics on Crop Physiology and Soil Ecosystems: A Review

  • Aaron Ohene Boanor,
  • Rose Nimoh Serwaa,
  • Jin Hee Park and
  • Jwakyung Sung

Long-term exposure of plastics to the environment causes them to disintegrate, resulting in the formation of micro/nanoplastics as well as the release of additives and chemicals into the soil. The micro/nanoplastics are able to readily migrate into t...

  • Article
  • Open Access
504 Views
22 Pages

Steep olive orchards in northwest Syria are experiencing severe land degradation as a result of unsustainable uphill–downhill tillage, which accelerates erosion and reduces productivity. To address this problem, three tillage systems, no-till n...

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Soil Syst. - ISSN 2571-8789