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soil, etc ; barns; composts; lighting; optical equipment; portable equipment; roughness; surface roughness; vision; Show all 9 Subjects
Abstract:
... Knowledge of surface roughness with the consequent presence of crust in the soil is important information for the rational management of environmental resources. Soil surface roughness can be determined by contact and noncontact methods. Contact methods have lower values and precision than noncontact methods. Therefore, the objective of this study was to develop low-cost, portable and robust optic ...
soil; soil bacteria; soil biology, etc ; climate; China; Show all 5 Subjects
Abstract:
... It is well-known that climate warming influences soil microbial communities. The effects are usually a comprehensive consequence of the direct and indirect effects of plants. Yet how plants influence the responses of soil microbes to climate warming remains largely unknown. In this study, a field warming experiment using infrared heaters was conducted on the eastern Tibetan Plateau to investigate ...
soil; soil microorganisms; soil organic matter, etc ; agricultural management; pH; soil quality; Sweden; Show all 7 Subjects
Abstract:
... Recent advances in molecular ecology have dramatically improved our knowledge of soil microbial diversity and offers new indicators of soil quality. The usefulness of diversity indices has never been greater as the astronomical amounts of data generated in the literature needs to be synthesized. Despite technical guidelines have been proposed to characterize soil microbiomes using high throughput ...
soil; soil map; soil parent materials, etc ; case studies; expert opinion; fuzzy logic; soil surveys; soil taxonomy; China; Show all 9 Subjects
Abstract:
... The accuracy of digital soil maps (DSMs) is influenced by the quality of the input data. The application of legacy data obtained from past soil surveys was considered a potential method to improve DSM input data. However, changes in soil classification systems have occurred in many countries, and legacy data are therefore not directly applicable in the generation of the latest DSMs. This research ...
soil composition; soil electrical conductivity; soil organic matter, etc ; biogeochemistry; elemental composition; land degradation; river deltas; salt marshes; soil pH; soil salinity; soil water content; Show all 11 Subjects
Abstract:
... Large areas of coastal wetlands have been restored recently throughout the world; it is important to know if restoration practice recovers original levels of biogeochemical functioning in coastal wetlands. We did samplings in five sites in the Liaohe River Delta, China. Each site had three salt marsh types: natural, restored, and degraded. We measured the concentrations of 43 elements and environm ...
soil; soil degradation; soil ecosystems, etc ; agricultural land; climate change; issues and policy; land use; soil organic matter; soil pollution; Show all 9 Subjects
Abstract:
... The predominance of agriculture in the UK is a major factor determining the main soil threats and priorities. The main soil degradation processes are compaction, erosion and soil organic matter loss, while soil contamination and sealing is also a significant issue. Agricultural land take threatens soil ecosystem services but receives little attention. An urgent need to tackle climate change has re ...
soil erosion; soil organic carbon; soil productivity, etc ; catenas; crop residues; simulation models; soil profiles; Show all 7 Subjects
Abstract:
... Soil erosion in croplands has a strong impact on global carbon (C) cycle. Assessment of erosional effects on soil organic carbon (SOC) dynamics in agricultural soils suffers from the difficulty of distinguishing the erosional effects and complex interaction processes between erosion and C cycling. To simulate the effects of soil erosion, a plots experiment including six erosion levels (0, 5, 10, 2 ...
... Soil amendment with biochar is evaluated globally as a means to improve soil fertility, restoration of the ecological functions for anthropogenically polluted soils and also is a potential candidate to mitigate climate change. Application of biochar, a carbon-rich material developed from the combustion of biomass under no or limited oxygen supply has been found to ameliorate some of the negative e ...
soil; soil fertility; soil management, etc ; ecosystems; governance; sustainable agriculture; Mexico; Show all 7 Subjects
Abstract:
... Soils provide multiple ecosystem services fundamental to the continuity of life on the planet. This valuable natural resource is directly and indirectly linked to several Sustainable Development Goals (SDGs), especially through activities related to agri-food systems; however, soils have not been sufficiently valued. In Mexico more than half of the soils present some level of degradation and in a ...
soil; soil aggregation; soil biota, etc ; edaphic factors; environmental impact; human health; plastics; pollution control; soil ecosystems; soil pollution; stakeholders; sustainable development; Show all 12 Subjects
Abstract:
... In recent years, environmental experts and stakeholders have paid increased attention to the pollution of micro plastics in the soil. As persistent pollutants, micro plastics have a significant impact on the soil ecology, agricultural production, and the overall health of the ecological environment. Micro plastics can influence soil bio-physicochemical properties and the mobility of other contamin ...
soil; soil bacteria; soil ecosystems, etc ; DNA barcoding; cement; ecotoxicology; heavy metals; humans; metabolism; metagenomics; soil pollution; Show all 11 Subjects
Abstract:
... Events of soil contamination by heavy metals are mostly related to human activities that release these metals into the environment as emissions or effluents. Among the industrial activities related to heavy metal pollution, cement production plants are considered one of the most common sources. In this work we applied the High-throughput sequencing approach called 16 S rDNA metabarcoding to perfor ...
... Polycyclic aromatic hydrocarbons (PAHs) and their oxygenated derivates (O-PAHs) are identified in soils and groundwater of industrialized sites and contribute to the risk for Humans and the Environment. Nevertheless, data are scarce in literature concerning their retention and transfer in soils and no soil - water partition coefficients are available for these compounds. Sorption of two PAHs, fluo ...
soil ecology; soil pH; soil water, etc ; alpine grasslands; biodiversity; ecosystems; China; Show all 7 Subjects
Abstract:
... It is well established that grassland degradation negatively affects ecosystem functioning. Many studies have explored the changes of individual functions involved with grassland degradation, while fewer considered an ecosystem multifunctionality (EMF) summarizing the multiple simultaneous changes in the response of ecosystem functions to grassland degradation. Further, how changes in multiple eco ...
soil electrical conductivity; soil management; soil microorganisms, etc ; autocorrelation; carbon nitrogen ratio; community structure; crop production; fatty acid methyl esters; fungi; microbial biomass; precision agriculture; soil organic carbon; soil pH; soil quality; soil texture; soil water content; topography; total nitrogen; Texas; Show all 19 Subjects
Abstract:
... Understanding the spatial patterns of soil microbial communities and influencing factors is a prerequisite for soil health assessments and site-specific management to improve crop production. However, soil microbial community structure at the field scale is complicated by the interactions among topography and soil properties. The objectives of this study were to (1) characterize the spatial variab ...
soil classification; soil fertility; soil profiles, etc ; agricultural soils; land; perched water table; soil surveys; spring; winter; Greece; Show all 10 Subjects
Abstract:
... The objective of the present work is to contribute to the examination of the interconnections between soil classification/soil mapping and soil capability for agricultural use. A pedon scale analytical field along with laboratory data of an episaturated agricultural soil of Thessaly (Greece), allowed for the optimization of soil fertility class evaluation and its corresponding agricultural value. ...
soil carbon; soil depth; soil organic matter, etc ; Alnus glutinosa; carbon; field experimentation; lignin; nitrogen; probability; soil stabilization; Show all 10 Subjects
Abstract:
... High-quality plant inputs to the soil with low lignin to nitrogen ratios have been conceptualized to foster the formation of soil organic matter (SOM) and carbon (C) in stabilized soil compartments, such as aggregates and organo-mineral associations (MAOM), in dependence of the soil’s capacity to store additional C (i.e., C saturation deficit). Yet, evidence for these conceptualizations from field ...
soil; soil conservation; soil erosion, etc ; Internet; basins; geographic information systems; humans; land evaluation; soil map; streams; topography; Show all 11 Subjects
Abstract:
... Erosion is seen as a major productivity problem in the world. Unplanned agricultural practices caused by human activities initiate the soil erosion process. Especially in sloping areas, agricultural activities without soil conservation measures accelerate this process. This study prepared land use planning (LUP) scenarios to reduce soil losses in the Mikail Stream Micro-Basin, which has an erosion ...
... Plant–soil feedback (PSF) can be a major driver of plant performance in communities, and this concept can be used in selecting crop rotation sequences to maximize agricultural yields. Potential benefits of using PSF in this context include nutrient use optimization, pathogen reduction, and enhancement of mutualisms between crops and microbes. Yet the contributions of these combined mechanisms are ...
... Invasive plants from introduced populations may utilize soil nutrients more efficiently and increase their performance relative to those from native populations but this may vary with soil biota and soil fertility. In part this may reflect differences in soil enzymatic activity but this has not been examined. Here, we investigated the effects of soil sterilization (control or sterilized) and soil ...
... The separate and collective role of soil nematodes and protists at community level in soil biogeochemical processes remains poorly quantified due to the lack of appropriate methodologies to study them independently from other soil biota under conditions emulating natural soil. Here we present a methodological exploration for the selective removal of nematodes and protists using gamma irradiation a ...