نتایج جستجو برای: cation exchange capacity cec
تعداد نتایج: 509194 فیلتر نتایج به سال:
Estimates of soil properties such as Cation Exchange Capacity (CEC), water content, grain size characteristics, and permeability are important in geotechnical engineering, resources, agriculture. We develop a non-intrusive approach to estimate these the field using spectral induced polarization (SIP) tomography. This geophysical method provides information about frequency dependence complex ele...
A backtitration technique was used to collect proton isotherm data for an Al oxide, and was found to be stoichiometrically related to the cation and anion isotherm behavior. The adsorption of various ions by the Al oxide surface was modeled based on: (i) two surface sites, (ii) pH+salt-dependent reactions (H and Cl~, 2OH~, or Na and OH"), (iii) competitive salt-dependent reactions (Na or Cl~), ...
Amazonia combines semi-continental size with difficult access, so both current ranges of species and their ability to cope with environmental change have to be inferred from sparse field data. Although efficient techniques for modeling species distributions on the basis of a small number of species occurrences exist, their success depends on the availability of relevant environmental data layer...
This study is part of the ongoing environmental monitoring program abandoned Mecsek uranium mine. On mine’s recultivated spoil deposit No. I, anomalies that refer to possible migration alongside slope were detected. The present was conducted supplement with a sampling strategy and analytical methods can characterize mobility potentially toxic elements radionuclides. A developed: vegetation soil...
Soil physical and chemical characteristics play a key role on vine growth yield. The soils of South Uruguay display high content montmorillonite or illite. proportion these minerals deserves special attention as they influence the soil structure its hydrological properties. present study was conducted in 1.1 ha vineyard this region (Canelones), characterized by heterogeneity plant vigour. It ai...
This study investigated the effectiveness of raw redmud and iron exchanged for arsenic (As) adsorption efficiency at different time intervals. Due to red mud’s low absorption percentage, alkaline nature, less specific surface area, poor selectivity, unmodified are effective than modified in capturing from contaminated environments. Iron have been developed absorb Scanning electron microscopy (S...
We investigated the influence of soil properties on availability or otherwise micronutrients in agricultural soils impacted by inorganic and organic manures South-South Area Nigeria. The levels pH, matter (OM), cation exchange capacity (CEC), copper (Cu), iron (Fe), manganese (Mn), zinc (Zn) understudy were examined. measured OM, CEC, Cu, Fe, Mn Zn revealed: 6.04±0.49, 17.68±4.78 %, 7.97±0.81 C...
Change in land use and tillage practices has great influence on soil physical and chemical properties. The present study has focused on the effects of converting undisturbed soil to agricultural lands. Chemical and physical soil properties, infiltration, cation exchange capacity (CEC), electrical conductivity, pH, bulk density, porosity, sodium, potassium, total Ca + Mg, organic matter percenta...
Elevated anthropogenic nitrogen (N) deposition has greatly altered terrestrial ecosystem functioning, threatening ecosystem health via acidification and eutrophication in temperate and boreal forests across the northern hemisphere. However, response of forest soil acidification to N deposition has been less studied in humid tropics compared to other forest types. This study was designed to expl...
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