搜索结果: 1-14 共查到“土壤物理学 Soils”相关记录14条 . 查询时间(0.25 秒)
Predicting Oxidizable Carbon Content via Visible- and Near-Infrared Diffuse Reflectance Spectroscopy in Soils Heavily Affected by Water Erosion
Partial Least Squares Regression spectra pre-treatment
2015/7/28
Soil spectroscopy represents a low-cost alternative to routine time-consuming and expensive laboratory analyses.
Its ability to measure a wide range of different chemical and physical soil propertie...
Thermal properties of representative soils of the Czech Republic
heat capacity laboratory measurements sensor comparison soil thermal properties soil-water content soil types thermal conductivity
2015/3/9
Knowledge of soil thermal properties is essential when assessing heat transport in soils. Thermal regime of soils is associated with many other soil processes (water evaporation and diffusion, plant t...
Spectroscopic characteristics of humates isolated from different soils
SFS and UV-VIS spectroscopy soil humic substances
2015/3/3
Spectral characterisation of soil humic substances is one of the important methods for their quality identification. In this work, two optical methods (UV-VIS and SFS) were used. The absorbance in the...
Variability of Saturated Hydraulic Conductivities in the Agriculturally Cultivated Soils
saturated hydraulic conductivity method with falling head method
2015/3/1
The knowledge of the moisture conditions in a variably saturated zone of soil and their management is
one of the main possibilities that allow the agronomists to raise significantly the fertility of...
Spectroscopic Characteristics of Humic Acids Originated in Soils and Lignite
humic acids UV-VIS FTIR and SFS spectroscopy
2015/3/1
The aim of our work was to characterise the stability, humification degree, and principal classes of fluorophores in humic acids isolated from different matrices. Soil humic acids were isolated from a...
Mapping soils using the fuzzy approach and regression-kriging case study from the Považsky Inovec Mountains, Slovakia
fuzzy k-means regression-kriging digital landscape data grid interpretation spatial distribution soil classification
2015/1/30
The paper introduces a method of digital mapping of spatial distribution of soil typological units. It implements fuzzy k-means to classify the soil profile data (study area from the Považsky Ino...
Chemical properties of wild coffee forest soils in Ethiopia and management implications
Carbon Sequestration Coffee Forest Environments
2013/3/5
The study aims at determining the status of soil chemical fertility in four wild coffee forests of southeastern and southwestern Ethiopia. Accordingly, soil samples were collected from surface and sub...
Impact of Floods on Soils
Floods Soils the physical-chemical state of the soil soil quality crop production
2009/12/16
A recent study conducted in the Midwestern United States examined the effects of harsh wet conditions on both cultivated and uncultivated soils, vastly advancing the knowledge of water’s effects on ag...
Tillage and mulch effects on some soil physical properties in shallow red brown terrace soils of Bangladesh
Soil Physical Properties Tillage and Mulch Effects
2009/3/12
A field and laboratory experiment was conducted during 2000-2001 and 2001-2002 to estimate the tillage and mulch effects on physical properties of soil. The experiment was laid out in split-plot desig...
Soil acidity parameters of laterite soils under rubber
Acidity base saturation exchangeable cations laterite rubber
2009/2/20
A study was conducted to understand the soil acidity parameters of three selected laterite soils under rubber in Kerala. Pedons were dug to a depth of 2 m at three selected locations viz. Thiruvan...
Saturated Hydraulic Conductivity Variation in Cultivated and Virgin Soils
Saturated hydraulic conductivity Cultivated field Virgin field Soil compaction Bulk density
2009/1/12
Variation of saturated hydraulic conductivity (Ks) values of soils under diverse management practices may be needed to determine the required sample number, sample size, and chose suitable sample sche...
Mobilization of substances in peat soils and their transfer within the groundwater and into surface water
nitrogen compounds phosphate dissolved organic carbon peat soil groundwater surface water
2010/1/15
The behaviour of nitrate, ammonium, phosphate and dissolved organic carbon (DOC) in the system of groundwater and surface water at a peat soil site has been studied. Data were collected during 2000–20...
Compare the Effect of Polluted and River Nile Irrigation Water on Contents of Heavy Metals of Some Soils and Plants
Irrigation water Pollution River Nile Soil Corn Heavy metals
2010/11/10
The objective of this study is to compare the effect of polluted in the El-Saff soils are irrigated from El-Khashab canal which is a mixture of domestic and industrial effluents and Nile water which i...
EFFECT OF LONG-TERM FERTILIZATION ON THE AVAILABLE TOXIC ELEMENT CONTENT OF DIFFERENT SOILS
long-term trials fertilization available toxic elements soil
2010/11/30
The National Long-Term Fertilization Trials were set up more than 30 years ago and in that time soil and water protection and environmental relations of fertilization had not been the direct aim of re...