Particle-size fractions-dependent extracellular enzyme activity in sediments and implications for resource allocation in a subtropical mangrove ecosystem by L. Luo, J.-D. Gu

“…Five enzymes involved in carbon (C), nitrogen (N), and phosphorus (P) cycling were analyzed in the sand, silt, and clay of sediments. Among these fractions, the highest activities of phenol oxidase (PHO), β-D glucosidase (GLU), and N-acetyl-glucosiminidase (NAG) were found in sand, and greater than bulk sediments of both intertidal zone (IZ) and mangrove forest (MG). …”
Get full text

Soil and Water Conservation Nexus Agricultural Productivity in Ethiopia by Wudu Abiye

“…The non-conserved land had lower soil organic matter, total N, and infiltration rate with higher bulk density, clay content, and available P. Soil organic matter content positively correlated with infiltration rate and total N, and it negatively correlated with soil bulk density. …”
Get full text

Phosphorus Adsorption and Its Correlation with Physicochemical Properties of Volcanic-Influenced Soils of Meupi-Awing in Northwest Cameroon by Mofor Nelson Alakeh, Njoyim Estella Buleng Tamungang, Fai Joel Alongifor

“…The capacity of the soil to adsorb phosphorus significantly correlated positively with amorphous Fe (r = 0.953 and p<0.05), free Fe (r = 0.984, 0.976 and p<0.05), free Al (r = 0.994 and p<0.01, r = 0.988 and p<0.05), and clay (r = 0.968 and p<0.05), which were the main parameters considered as predictors of phosphorus adsorption activities in the soils.…”
Get full text

Impact of Geological Factors on Marine Shale Gas Enrichment and Reserve Estimation: A Case Study of Jiaoshiba Area in Fuling Gas Field by Siyu Yu, Xixin Wang, Shaohua Li, Yuming Liu, Liming Xiao, Xin Liu, Wen Zhao, Jiaen Zhang

“…The results show that adsorbed gas content is positively correlated with total organic carbon and porosity; the larger specific surface area of samples with more clay minerals essentially contributes to shale gas enrichment. …”
Get full text

Direct and residual effect of various vermicompost on soil nutrient and nutrient uptake dynamics and productivity of four mustard Pak-Coi (Brassica rapa L.) sequences in organic fa... by N. Nurhidayati, Masyhuri Machfudz, Indiyah Murwani

“…Method A field experiment was conducted for four sequential planting periods of mustard Pak-Coi in silty clay Inceptisol. The experiment used a factorial randomized block design with two factors. …”
Get full text

Soil and Groundwater Characteristics of a Legacy Spill Site by A Adoki

“…Where it occurs within the subsurface, the groundwater was observed to occur either within the lower part of the sandy clay or within the sands and gravels layer. The general direction of the groundwater flow within the area was observed to be from the North West to the South East. …”
Get full text

A Unified Elastoplastic Model of Unsaturated Soils Considering Capillary Hysteresis by Tiantian Ma, Changfu Wei, Pan Chen, Huihui Tian, De'an Sun

“…Within this context, a constitutive model of unsaturated soils is developed by generalizing the modified Cam-Clay model. A hardening function is introduced, in which both the matric suction and the degree of saturation are explicitly included as hardening variables, so that the effect of hydraulic history on the mechanical response can be properly addressed. …”
Get full text

Erodibility and sedimentation potential of marly formations at the watershed scale by F. Rostami, S. Feiznia, M. Aleali, M. Heshmati, B. Yousefi yegane

“…The results indicated that Kashkan formation comprises siltstone, sandstone, shale, and conglomerate, and Grupi formation contains shale, clay, and limestone with a high erodibility potential. …”
Get full text

Physical and Mechanical Performance of Frozen Rocks and Soil in Different Regions by Junhao Chen, Lexiao Wang, Zhaoming Yao

“…The strength of the sandy soil strata is the highest, followed by the cohesive soil strata, and the strength of the mucky soil and the calcareous clay is the lowest. The strength of the frozen wall and the waterproof requirements must both be taken into account in the freezing design. …”
Get full text

Experimental Study on the Damage and Deterioration Behaviour of Deep Soft Rock under Water-Rock Interaction by Zenghui Zhao, Hao Liu, Xianzhou Lyu, Lei Wang, Zhongxi Tian, Jiecheng Sun

“…Therefore, the diffusion, migration, and particle expansion of illite and other clay minerals in mudstone are the main factors leading to the structural damage and strength reduction of weakly cemented rock under water-rock interactions.…”
Get full text

Origin and Distribution of Carbonate Cement in Tight Sandstones: The Upper Triassic Yanchang Formation Chang 8 Oil Layer in West Ordos Basin, China by Jin Lai, Guiwen Wang, Jing Chen, Shuchen Wang, Zhenglong Zhou, Xuqiang Fan

“…Dissolution of Ca-feldspars by organic acids-rich fluids, together with clay mineral transformations such as illitization of smectite, would provide Ca2+ and Mg2+ ions for carbonate cementation. …”
Get full text

Phosphorus Status, Inorganic Phosphorus Forms, and Other Physicochemical Properties of Acid Soils of Farta District, Northwestern Highlands of Ethiopia by Asmare Melese, Heluf Gebrekidan, Markku Yli-Halla, Birru Yitaferu

“…The moderate to high CEC suggests that besides kaolinite, the soils also contain expandable 2 : 1 clay minerals. Though the total P content was high, the available Olsen P content was very low or low in all soils except one. …”
Get full text

Alkaline Activation of Basic Oxygen Furnace Slag Modified Gold Mine Tailings for Building Material by Tebogo Mashifana, Jessica Sebothoma, Thandiwe Sithole

“…The developed GMT: BOFS geopolymers satisfied the minimum requirements for nonfacing building masonry as stipulated by the ASTM C34-17a, ASTM C129-14c 0076a, and the SANS 227: 2007 for burnt clay masonry units and can be used as a mine backfill paste and for lightweight civil applications. …”
Get full text

Feasibility of Water Injection on the Coal Wall of Loose Thick Coal Seam to Prevent Rib Spalling and Its Optimal Moisture Content by Jian Sun, Bin Li, Ruofei Zhang, Zhou Huang

“…The results showed that the natural moisture content of III811 coal seam in Luling coal mine is low, and it contains a large amount of kaolinite (75.2%) belonging to clay mineral which is easy to absorb water and then expand, fully bond loose coal body and fill cracks to improve the integrity of coal body. …”
Get full text

Bioremediation of Polycyclic Aromatic Hydrocarbon contaminated Aqueous-Soil matrix: Effect of co-contamination by CN Owabor, OC Onwuemene, I Enaburekhan

“…This study investigates the effect of lead and chromium on the rate of bioremediation of polycyclic aromatic hydrocarbon (PAH) contaminated clay soil. Naphthalene was used as a target PAH. …”
Get full text

Ecolinguistic dynamics of English loanwords in Chinese: a case study on terms for cement by Ruifeng Mo, Hao-Zhang Xiao

“…The loanwords for cement are ranked by vitality values in descending order—ShuiNi (水泥/water mud): 3.221, YangHui (洋灰/foreign ash): 2.350, ShuiMenTing (水门汀/water-gate concrete): 1.385, HongMaoNi (红毛泥/red-hair clay): 1.202, and ShiMinTu (士敏土/sticky soil): 0.879. (3) The endangerment of the loanwords results from the synergistic interaction between external (nature, society, culture, psychology) and internal (sound, form, meaning, grammar) environments. …”
Get full text

The Impact of Pore Structure on Kerogen Geomechanics by Saad Alafnan

“…Shale is a clastic sedimentary rock composed of a complex mineralogy of clay, quartz, calcite, and fragments of an organic material known as kerogen. …”
Get full text

Success or Failure in the City? Social Mobility and Rural-Urban Migration in Nineteenth- and Early-Twentieth-Century Groningen, the Netherlands by Richard Paping, Jacek Pawlowski

“…It utilizes two datasets regarding people born in the Groningen clay soil region (the Netherlands). By applying a revised version of HISCLASS for social stratification, it compares the social mobility of urban migrants with those staying in the countryside. …”
Get full text

Analysis and Design of Piled Raft Foundation Taking into Account Interaction Factors by Irfan Jamil, Irshad Ahmad, Shahid Ali Khan, Wali Ullah, Maaz Amjad, Beenish Jehan Khan, Hassan Nasir

“…The building is supported on a pile-raft system, with raft resting on very soft clay underlain by dense sand. The two case studies are also modelled in the finite element program PLAXIS 3D for comparison. …”
Get full text

Soybean (Glycine max L.) Yield and Yield Component Under Different Planting Time and Foliar Application of Humic Acid by Shara Salih Ali, Chnar Hama Noori Mirza

“…A triplicate field experiment laid out in randomized complete block design was conducted to evaluate the effect of foliar application of humic acid rates (HAR) at Bakrajo, Sulaimani which is  (located at 35°32'52.8"N and 45°21'16.6"E) belongs to Kurdistan region of Iraq with the silty clay soil type. Five different Humic Acid rates (HAR) which were (0 (control), 2,4,6,8 g/L) and two cultivation period (CP) which were cultivation Period 1 (CP1) on 15 May 2022 and cultivation Period 2 (CP2) on 1st of June 2022. …”
Get full text