The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Ecological studies require environmental descriptors to establish the response of species or communities to ecological conditions. The soil water resource is an important factor, but it is difficult for plant ecologists to use because of the lack of accessible data. We explored whether collecting a large number of plots with basic soil information within the framework of forest inventories would make...
There is a well-documented need for new in situ technologies for elemental analysis of soil, particularly for carbon (C), that overcome the limitations of the currently established chemical method by dry combustion (DC). In this work, we evaluated the concordance between the new INS (inelastic neutron scattering) technology and the DC method. The comparisons were carried out in the high C content...
Nitrate (NO 3−1 ) accumulates in Haplocambids and Torrifluvents in inset fan and fan skirt positions in central Nevada. The soils store as much as 17,600kg of NO 3−1 Nha −1 within the upper 208cm. This paper provides an explanation. These Holocene soils receive NO 3−1 N from mineralization of organic matter and other NO 3−1 N sources including...
E value, based on isotope dilution method, is considered as an unambiguous index to assess the labile heavy metals in soils compared with the methods of chemical extraction. In the present study, the E values of Cd and Pb in polluted soils (QZDH and PTHJ soils) and non-polluted vegetable-growing soils (XMTA soils) were determined using stable isotope dilution method, and the compartments of E ...
Relationships between World Reference Base (WRB) soil groups and the soil forming factors of climate, parent material and topography are examined using the ISRIC WISE Global database (2002 and 2008 versions). For each of 70 different environmental regimes, being combinations of the above three variables, the dominant WRB soil groups were determined and presented with the aid of pie charts. Soil qualifiers...
The Plinian eruption of Somma-Vesuvius AD 79 that destroyed the ancient city of Pompeii, resulted in a nearly complete burial of the Sarno River plain. Hence, to a certain extent the pre-AD 79 Roman paleo-surface and paleosols of that entire landscape were conserved. To characterize the pre-AD 79 Roman paleosol and the paleo-topographical situation south of Pompeii, ten stratigraphic core drillings...
Characterizing soil metabolism requires measurement of the CO 2 production rate or metabolic heat rate. While a single rate provides information on how rapidly substrates are being metabolized, the ratio of metabolic heat rate to CO 2 production rate provides information on the nature of the substrates and the biochemical reactions taking place in the soil. Methodology to simultaneously...
Depth distribution of polychlorinated biphenyls (PCBs) in soil is important to assess transport of PCBs in soils and its associated environmental risks. Forty-four typical soil profiles representative of three dominant soil groups (Udic Luvisols, Gleyic Cambisols and Stagnic Anthrosols) in the Yangtze River Delta region were selected. A total of 169 pedogenetic horizon samples were collected and analyzed...
Aromatic acids are involved in important soil processes, such as mobilization of microelements by plants and formation of humic components. Interactions of aromatic acids (benzoic, vanillic, p-coumaric, syringic and ferulic) with Ca 2+ - and Fe 3+ -saturated montmorillonite were studied, and the role of aqueous Ca 2+ in aromatic acid adsorption to Fe 3+ -montmorillonite...
Two approaches have been used in the literature to estimate soil erosion using 137 Cs measurements. The traditional-approach requires only one set of samples and uses a single reference 137 Cs level, determined off-site, for the whole site. The repeated-sampling-approach requires two sets of samples and uses point-specific values, the 137 Cs inventories of the first set of...
Iron in its diverse forms in soils is an important indicator of a number of past and/or ongoing environmental processes. Iron oxide mineralogy pertinent to a particular soil type could be obtained with high resolution using magnetic methods. Planosols are a particular soil type characterized by surface water-logging leading to development of great textural differentiation with depth. This study presents...
The mineralization and availability of soil nitrogen (N) are vital processes in the sustainable management of soil resources and ecosystems. We studied the mineralization and availability of soil N on the northern Loess Plateau of China during the growing season under three different land use conditions: Chinese Pine woods, grassland, and Korshinsk Peashrub land. Mineral N varied significantly during...
Productivity rating systems are important tools to quantitatively assess soil health. In precision farming such information is required for planning appropriate soil and crop management strategies. In order to demonstrate a proper procedure for assessing the soil physical health of a farm, an experiment was conducted in a rice–wheat field. Spatial variability analysis of soil physical properties measured...
Accurate measurement of infiltration attributes for the soil's surface layer is critical for understanding the dynamics of soil water in response to rainfall or irrigation. This study used four large lysimeters to measure the early-time infiltration behaviour of a structured, well-drained, silt loam Dystric Cambisol. For each lysimeter there were four separate infiltration experiments, with a 480-mm-diameter...
Managed grasslands are important for stabilizing soil and reducing soil erosion on sloping lands. In order to obtain information for better grassland management and soil protection at small scales, managed grassland total net primary productivity (TNPP) data were collected and analyzed with a first order state-space approach and a classical linear regression approach. The objective was to determine...
The adsorption and desorption of carbendazim and cadmium (Cd) in soils (burozem and phaeozem) typically distributed in northeastern China were investigated at two different temperatures, 25 and 40°C. The effects of interaction between carbendazim and Cd on their adsorption and desorption were also discussed. The results showed that the adsorption of carbendazim was exothermic with ΔH Θ values...
Mangroves of New Caledonia act as a buffer between a lagoon of more than 20,000km 2 and the Island, which suffers intense processes of erosion resulting from urbanization and natural resources exploitation. This preliminary study aims at determining how heavy metals are distributed in mangrove sediments and pore-waters in relationship with their organic content. To reach our goal, a series...
The aim of this work was to evaluate the effects of vegetation and hydrocarbon (HC) contamination on the development of soil chemical and biological status during rhizoremediation of fuel oil contamination with the legume Galega orientalis. Uncontaminated and unvegetated references monitored in parallel with the rhizoremediation treatment enabled the identification of the partial effects. A 21-week...
Humic substances (HS) and water extractable organic matter (WEOM) represent an important part of soil organic matter (SOM) which plays many roles in this ecosystem. Forest fires are known to have potential impacts on soil organic matter. We studied these impacts, first on global HS and the three relevant fractions (humic acids (HA), fulvic acids (FA) and non-humified fraction (NHF)) and secondly on...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.