PubAg

Main content area

You searched for: Subject "soil" Remove constraint Subject: "soil"
Start Over

Search

184,180  Search Results

« Previous | 1 - 20 of 184,180 |
Number of results to display per page

Search Results

1. Diagnosis of soil contamination using microbiological indices: A review on heavy metal pollution

Author:
Tang, Jiayi; Zhang, Jiachao; Ren, Liheng; Zhou, Yaoyu; Gao, Jun; Luo, Lin; Yang, Yuan; Peng, Qinghui; Huang, Hongli; Chen, Anwei
Source:
Journal of environmental management 2019 v.242 pp. 121-130
ISSN:
0301-4797
Subject:
soil; soil pollution; soil quality,   etc   ; ecotoxicology; heavy metals; monitoring; toxicity;     Show all 7 Subjects
Abstract:
... Heavy metal contamination of soil has become a serious global issue because of their persistence in the environment and the non-biodegradable nature leading to their accumulation to toxic levels. In order to achieve early warning and prevent soil quality from deteriorating, it is necessary to select suitable indices to diagnose heavy metal pollution. Microbiological indices for monitoring soil pol ...
DOI:
10.1016/j.jenvman.2019.04.061

2. Correction to: Agroforestry for soil health

Author:
Dollinger, Jeanne; Jose, Shibu
Source:
Agroforestry systems 2019 v.93 no.3 pp. 1205
ISSN:
0167-4366
Subject:
soil fertility; soil organic carbon; soil quality,   etc   ; agroforestry; climate change;     Show all 5 Subjects
Abstract:
... In the below citation author last name was misspelled. ...
DOI:
10.1007/s10457-018-0227-5

3. New wings on the interaction between conventional subsoiler and paraplow tines with the soil: effects on the draft and the properties of soil

Author:
Askari, Mohammad; Shahgholi, Gholamhossein; Abbaspour-Gilandeh, Yousef
Source:
Archiv für Acker- und Pflanzenbau und Bodenkunde 2019 v.65 no.1 pp. 88-100
ISSN:
1476-3567
Subject:
clay loam soils; disturbed soils; soil aggregation,   etc   ; conservation tillage; subsoilers;     Show all 5 Subjects
Abstract:
... Equipping tines with the wings increases draft and soil loosening. Wing angles affect tine performance, soil aggregation and remained residue. In this research, conventional wing with no bent plus backward and forward bent wings with bend angles of 10 and 20° were attached to both a subsoiler and paraplow tine. The rake angle of all wings was 15°. The effects of tine and wing on draft, soil distur ...
DOI:
10.1080/03650340.2018.1486030

4. The use of iron (III) ferrocyanide soil amendment for removing salt from the soil surface

Author:
Angin, Ilker; Sari, Serdar; Lutfi Aksakal, Ekrem; Tohumcu, Faruk
Source:
Arid land research and management 2019 v.33 no.1 pp. 91-96
ISSN:
1532-4990
Subject:
soil; soil amendments; soil salinization,   etc   ; freshwater; iron; salts;     Show all 6 Subjects
Abstract:
... Accelerated soil salinization is a worldwide concern. Our study was carried out to determine the effects of different rates (0, 5, 10, and 15 mmol kg⁻¹) of iron (III) ferrocyanide application to remove salts from the soil. Within two weeks of its application, iron (III) ferrocyanide at 5, 10, and 15 mmol kg⁻¹ removed 12.2%, 26.5%, and 42.9% of the total salts from the soil, respectively. Results s ...
DOI:
10.1080/15324982.2018.1474400

5. Pedology and digital soil mapping (DSM)

Author:
Ma, Yuxin; Minasny, Budiman; Malone, Brendan P.; Mcbratney, Alex B.
Source:
European journal of soil science 2019 v.70 no.2 pp. 216-235
ISSN:
1351-0754
Subject:
soil classification; soil formation; soil horizons,   etc   ; information systems; models; prediction; soil parent materials; soil profiles; soil surveys;     Show all 9 Subjects
Abstract:
... Pedology focuses on understanding soil genesis in the field and includes soil classification and mapping. Digital soil mapping (DSM) has evolved from traditional soil classification and mapping to the creation and population of spatial soil information systems by using field and laboratory observations coupled with environmental covariates. Pedological knowledge of soil distribution and processes ...
DOI:
10.1111/ejss.12790

6. Natural language indexing for pedoinformatics

Author:
Furey, John; Davis, Austin; Seiter-Moser, Jennifer
Source:
Geoderma 2019 v.334 pp. 49-54
ISSN:
0016-7061
Subject:
U.S. Soil Taxonomy; World Reference Base for Soil Resources; soil formation,   etc   ; USDA; databases; soil profiles; soil properties; soil surveys;     Show all 8 Subjects
Abstract:
... The multiple schema for the classification of soils rely on differing criteria but the major soil science systems, including the United States Department of Agriculture (USDA) and the international harmonized World Reference Base for Soil Resources soil classification systems, are primarily based on inferred pedogenesis. Largely these classifications are compiled from individual observations of so ...
DOI:
10.1016/j.geoderma.2018.07.050

7. Automated segmentation of gravel particles from depth images of gravel-soil mixtures

Author:
Rahmani, Hossein; Scanlan, Craig; Nadeem, Uzair; Bennamoun, Mohammed; Bowles, Richard
Source:
Computers & geosciences 2019 v.128 pp. 1-10
ISSN:
0098-3004
Subject:
soil; soil sampling,   etc   ; algorithms; automation; computers; gravel;     Show all 6 Subjects
Abstract:
... We propose an image-based technique to measure the volume, weight and the size distribution of gravel particles in a gravel-soil mixture. The proposed method uses 3D scanning and a surface reconstruction algorithm to generate a high-resolution depth image, which is then used to accurately estimate the volume and weight of each gravel particle. The proposed method is evaluated on several gravel soi ...
DOI:
10.1016/j.cageo.2019.03.005

8. Biochar amendment improves crop production in problem soils: A review

Author:
Yu, Haowei; Zou, Weixin; Chen, Jianjun; Chen, Hao; Yu, Zebin; Huang, Jun; Tang, Haoru; Wei, Xiangying; Gao, Bin
Source:
Journal of environmental management 2019 v.232 pp. 8-21
ISSN:
0301-4797
Subject:
arable soils; soil amendments; soil formation,   etc   ; biochar; carbon; carbon sequestration; crop production; farming systems; plant growth; roots; soil microorganisms; soil pollution; soil productivity; soil quality; soil remediation;     Show all 15 Subjects
Abstract:
... Problem soils are referred to as those with poor physical, chemical, and biological properties that inhibit or prevent plant growth. These poor properties may be a result of soil formation processes but are largely due to inappropriate farming practices or anthropogenic pollution. The world has lost a third of its arable land due to erosion and pollution in the past 40 years. Thus, there is an urg ...
DOI:
10.1016/j.jenvman.2018.10.117

9. Resilience of Red Ferralitic soils in the karst regions of Mayabeque Province, Cuba

Author:
Febles González, José M.; Febles Díaz, J.M.; Sobrinho, Nelson Moura B. Amaral; Tolón‐Becerra, Alfredo; Lastra‐Bravo, Xavier; Botta, Guido F.
Source:
Land degradation & development 2019 v.30 no.1 pp. 109-116
ISSN:
1085-3278
Subject:
soil; soil degradation,   etc   ; ecosystems; karsts; limestone; Cuba;     Show all 6 Subjects
Abstract:
... There is an ongoing global debate on soil degradation, its magnitude and agro‐environmental impact, where long‐term experimentation provides quantitative criteria for its capacity for restauration with rational use and management. In this context, research in the last 30 years has confirmed that the resilience of Red Ferralitic soils in the karst regions of western Cuba is a multifactorial process ...
DOI:
10.1002/ldr.3192

10. Analysis of Causes of Soil Degradation at the Akhty Mountain and Valley Agricultural Experimental Station of the Republic of Dagestan

Author:
Buyvolova, A. Yu.; Khusniev, I. T.; Bykova, E. P.
Source:
Moscow University soil science bulletin 2019 v.74 no.1 pp. 8-14
ISSN:
0147-6874
Subject:
soil; soil degradation,   etc   ; research institutions; Russia;     Show all 4 Subjects
Abstract:
... The cause-and-effect relationships between degradation processes are revealed, and their development under different agricultural use conditions is shown based on a study of soils of the Akhty Mountain and Valley Agricultural Experimental Station. The DPSIR concept (Driving forces–Pressure–State–Impact–Response) has revealed the main factors of the currently increasing soil degradation at the stat ...
DOI:
10.3103/S0147687419010034

11. Cellulosolytic Activity of Soils: Methods of Measuring, Factors, and Geographic Variability

Author:
Gavrilova, V. I.; Gerasimova, M. I.
Source:
Moscow University soil science bulletin 2019 v.74 no.1 pp. 21-25
ISSN:
0147-6874
Subject:
soil; soil formation,   etc   ; geographical variation; seasonal variation;     Show all 4 Subjects
Abstract:
... Based on published data and experiments performed by the authors, the paper analyzes experimental methods for assessing the cellulosolytic activity of soils and calculating the measurement results thereof. A brief overview of factors and dynamics of this phenomenon, including its seasonal changes, is presented, as well as information on its geographic variability. These materials may be helpful in ...
DOI:
10.3103/S014768741901006X

12. Soil organic carbon and soil erosion – Understanding change at the large catchment scale

Author:
Hancock, G.R.; Kunkel, V.; Wells, T.; Martinez, Cristina
Source:
Geoderma 2019 v.343 pp. 60-71
ISSN:
0016-7061
Subject:
soil; soil erosion; soil movement,   etc   ; cesium; landscapes; radionuclides; rain; soil organic carbon; storms; watersheds;     Show all 10 Subjects
Abstract:
... Soil organic carbon (SOC) is a major soil component. However, there is still much to learn regarding its spatial and temporal distribution as well as how SOC moves through the landscape. Of particular interest is how SOC movement is related to soil erosion and deposition. Here we examine the spatial distribution of SOC over two large (562 and 606 km2) catchments in relation to soil erosion and dep ...
DOI:
10.1016/j.geoderma.2019.02.012

13. Burn Effects on Soil Aggregate Stability and Water Repellency of Two Soil Types from East and North Tunisia

Author:
Ibrahimi, Khaled; Mowrer, Jake; Amami, Roua; Belaid, Abdelhamid
Source:
Communications in soil science and plant analysis 2019 v.50 no.7 pp. 827-837
ISSN:
1532-2416
Subject:
clay soils; sandy loam soils; soil aggregates,   etc   ; Fluvisols; aggregate stability; burning; soil sampling; temperature; Tunisia;     Show all 9 Subjects
Abstract:
... To date, evidence of the potential effects of burning practices on soil properties in Tunisia is limited. In order to address this issue, we carried out laboratory investigations of the effects of burning on soil aggregate stability (AS) and water repellency (WR) of a clayey and a sandy loam Fluvisol soils. The treatments included low (100°C, LT), medium (300°C, MT) and high (600°C, HT), heating t ...
DOI:
10.1080/00103624.2019.1589487

14. Multi-dimensional consolidation analysis of transversely isotropic viscoelastic saturated soils

Author:
Ai, Zhi Yong; Zhao, Yong Zhi; Song, Xiaoyu; Mu, Jin Jing
Source:
Engineering geology 2019 v.253 pp. 1-13
ISSN:
0013-7952
Subject:
soil,   etc   ; isotropy; models; viscoelasticity;     Show all 4 Subjects
Abstract:
... Based on the extended precise integration method, we investigate the multi-dimensional consolidation problem of transversely isotropic viscoelastic saturated soils. Firstly, we introduce extended precise integration solutions of multi-dimensional such as axisymmetric and three-dimensional Biot's consolidation. Then the Merchant model is applied to simulate the viscoelasticity of soils. Through the ...
DOI:
10.1016/j.enggeo.2019.02.022

15. A theoretical investigation on characteristic frequencies of ground vibrations induced by elevated high speed train

Author:
Shi, Li; Sun, Hong-lei; Pan, Xiao-dong; Geng, Xue-yu; Cai, Yuan-qiang
Source:
Engineering geology 2019 v.252 pp. 14-26
ISSN:
0013-7952
Subject:
soil,   etc   ; cities; railroads; China;     Show all 4 Subjects
Abstract:
... High speed railway is an ever-expanding mega project in China, connecting more and more cities of economy importance. This paper presents a theoretical evaluation on vibrations of saturated ground induced by high speed train operating on an elevated bridge. The simply-supported bridge consisting of a slab railway track resting on multiple spans of box girder is treated using the periodic theory. W ...
DOI:
10.1016/j.enggeo.2019.02.014

16. Interaction between pile groups and thrust faults in a physical sandbox and numerical analysis

Author:
Li, Chien-Hung; Lin, Ming-Lang; Huang, Wen-Chao
Source:
Engineering geology 2019 v.252 pp. 65-77
ISSN:
0013-7952
Subject:
soil,   etc   ; deformation; earthquakes; models;     Show all 4 Subjects
Abstract:
... For a bridge that straddles a fault line, its pile group foundation can tilt or even fail during an earthquake event. A small-scale physical sandbox experiment is performed in this study to model a pile group subjected to thrust faulting, and particle flow code (PFC3D) is adopted for numerical analysis. The numerical analysis results are in good agreement with the sandbox test results with regard ...
DOI:
10.1016/j.enggeo.2019.02.023

17. Diffusivity and sorptivity determination at different soil water contents from horizontal infiltration

Author:
Villarreal, Rafael; Lozano, Luis A.; Melani, Esteban M.; Salazar, María Paz; Otero, María Florencia; Soracco, C. Germán
Source:
Geoderma 2019 v.338 pp. 88-96
ISSN:
0016-7061
Subject:
sandy loam soils; silt loam soils; soil water,   etc   ; diffusivity; hydraulic conductivity; soil water content; Pampas region;     Show all 7 Subjects
Abstract:
... Determination of soil hydraulic properties under non-saturated conditions is crucial in order to describe soil water dynamics in the field. The objectives of this work were: i- to determine soil water diffusivity (D) as a function of soil moisture with a simple lab set-up, based on Whisler et al. (1968) methodology, from soil moisture profiles obtained using capacitive sensors in three contrasting ...
DOI:
10.1016/j.geoderma.2018.11.045

18. Automatic extraction and structuration of soil–environment relationship information from soil survey reports

Author:
WANG, De-sheng; LIU, Jun-zhi; ZHU, A-xing; WANG, Shu; ZENG, Can-ying; MA, Tian-wu
Source:
Journal of integrative agriculture 2019 v.18 no.2 pp. 328-339
ISSN:
2095-3119
Subject:
soil profiles; soil sampling; soil surveys,   etc   ; atmospheric precipitation; data collection; landforms; models; soil types; temperature; China;     Show all 10 Subjects
Abstract:
... In addition to soil samples, conventional soil maps, and experienced soil surveyors, text about soils (e.g., soil survey reports) is an important potential data source for extracting soil–environment relationships. Considering that the words describing soil–environment relationships are often mixed with unrelated words, the first step is to extract the needed words and organize them in a structure ...
DOI:
10.1016/S2095-3119(18)62071-4

19. Soil Conditions Following Hydrologic Restoration in Cypress Dome Wetlands

Author:
Bartholomew, Megan K.; Anderson, Christopher J.; Berkowitz, Jacob
Source:
Wetlands 2019 v.39 no.1 pp. 185-196
ISSN:
0277-5212
Subject:
soil organic matter; soil properties; soil quality,   etc   ; groundwater extraction; pH; subsidence; wetland soils; wetlands;     Show all 8 Subjects
Abstract:
... Soil characteristics and decomposition rates were investigated in 12 geographically isolated wetlands (cypress domes) across a gradient of hydrologic alteration (altered, marginally altered and least altered sites) seven years after passive recovery from historic groundwater withdrawals. Above- and belowground decomposition rates were determined in transition (seasonally flooded) and outer deep (s ...
DOI:
10.1007/s13157-018-1061-2

20. Characteristics and simplified model of film slit irrigation

Author:
Li, Yibo; Liu, Ye; Fan, Haiyan; Xing, Xuguang; Wu, Lei; Ma, Xiaoyi
Source:
Archiv für Acker- und Pflanzenbau und Bodenkunde 2019 v.65 no.1 pp. 16-30
ISSN:
1476-3567
Subject:
soil structure; soil texture; soil types,   etc   ; irrigation; irrigation water; models; soil water;     Show all 7 Subjects
Abstract:
... Research on the factors affecting the characteristics of film slit irrigation has not received sufficient attention, although this is a wide-adopted irrigation technology. Infiltration modelling based on fewer factors deserves priority in the field studies. A laboratory theoretical study was conducted to investigate the simulated effects of SWMS-2D (simulating water movement through soil in two-di ...
DOI:
10.1080/03650340.2018.1477254