搜索结果: 1-15 共查到“土壤环境学 soil”相关记录16条 . 查询时间(0.269 秒)
New study reveals that soil is a significant carbon sequestration driver（图）
soil significant carbon sequestration driver
2020/9/25
As harmful atmospheric carbon dioxide levels continue to increase, understanding the planet's carbon balance is increasingly important.A new report by U.S. National Science Foundation-funded ecol...
第四届不饱和土壤力学与废弃物处置国际研讨会（The 4th International Symposium on Unsaturated Soil Mechanics and Waste Disposal）
第四届 不饱和 土壤力学 废弃物处置 国际研讨会
2017/3/8
Problems related to disposal of high level radioactive waste and municipal waste as well as CO2 storage are crucial environmental issues and therefore have attracted particular attentions in many coun...
Contribution to a discussion on the influence of coppicing on soil environment
high forest conversion soil conditions
2015/5/18
In 2011, soil properties and stand condition of four forest stands were evaluated at the Křtiny Training Forest Enterprise (Czech Republic). The stands were managed on a long-term basis as an oak...
INVERSION OF THREE LAYERS MULTI-SCALE SPM MODEL BASED ON NEURAL NETWORK TECHNIQUE FOR THE RETRIEVAL OF SOIL MULTI-SCALE ROUGHNESS AND MOISTURE PARAMETERS
Backscattering multi-scale multilayer
2015/5/7
In this paper, a multi-layered multi-scale backscattering model for a lossy medium and a neural network inversion procedure has been presented.We have used a bi-dimensional multi-scale (2D MLS) roug...
Decomposition of the biodiesel by-product, crude glycerol, in soil
glycerine C mineralization soil respiration
2014/9/22
The disposal of crude glycerol, the biodiesel by-product, may become an economic or environmental problem in cases where no trading of this material is possible. This study aimed at evaluating the dec...
Spatial horizontal correlation characteristics in the land data assimilation of soil moisture
Spatial horizontal correlation characteristics land data assimilation soil moisture
2013/9/2
Remote sensing images deliver important information about soil moisture, but often cover only part of an area, for example due to the presence of clouds or vegetation. This paper examines the potentia...
Evaluation of Soil Porosity Using a Low MHz Range Dielectric Constant
Dielectric constant Soil Porosity MHz frequency Liquefaction
2009/10/12
Researchers have attempted to determine the dielectric constants of soil-water mixtures in order to establish relationships between dielectric constant and soil properties such as porosity. However, t...
Relationship between Methylene Blue Value,Initial Soil Suction and Swell Percent of Expansive Soils
Expansive soil Methylene blue value Psychrometer Swell percent Soil suction
2009/10/12
The purpose of this study was to investigate the relationship between methylene blue value, initial soil suction and the swell percentage of expansive soil samples. In this study, commercially process...
Nitrite and Nitrate Removal Efficiencies of Soil Aquifer Treatment Columns
Soil aquifer treatment Wastewater Nitrite and nitrate removal
2009/10/10
Bench-scale soil column experiments were performed to examine the e ects of soil type and in ltration conditions on the removal eciencies of wastewater nitrites and nitrates during the biological rip...
Assessment of Human Exposures to Natural Sources of Radiation in Soil of Riyadh, Saudi Arabia
Assessment of Human Exposures Natural Sources of Radiation Soil of Riyadh, Saudi Arabia
2009/9/30
Natural radioactivity is a source of continuous exposure to human beings. It originates from both extraterrestrial sources and radioactive elements in the earth’s crust. The amount of radioactivity in...
Collapsibility and Volume Change Behavior of Unsaturated Residual Soil
Collapsibility matric suction residual soil
2009/3/19
Residual soils occur in most countries of the world but the greater areas and depths are normally found in tropical humid areas.
Stability Analysis and Stability Chart for Unsaturated Residual Soil Slope
Matric suction unsaturated residual soil
2009/3/19
In tropical residual soils most hill slope failures are caused by rainfall. It is therefore important to consider dynamic hydrological conditions when attempting to analyze the stability of residual s...
Relationship Between Shear Strength and Soil Water Characteristic Curve of an Unsaturated Granitic Residual Soil
Matric suction shear strength
2009/3/19
Shear strength parameters are crucial for stability analyses of slopes against slope failures and landslides. The three shear strength parameters that are required to define a failure envelope of an u...
Survival and Changes in Germination Response of Rumex obtusifolius Polygonum longisetum and Oenothera biennis during Burial at Three Soil Depths
seed soil depths
2009/3/19
To investigate patterns in seed germination and survival at three different soil depths over a long time span, seeds of Rumex obtusifolius, Polygonum longisetum and Oenothera biennis were examined as ...
Microbial Response to the Application of Amendments in a Contaminated Soil with Trace Elements
Cooper zinc chromium compost
2009/3/18
Problem Statement: The anthropogenic activities can cause adverse effects in soils, increasing in some situations trace elements contents, impacting negatively both the microbial biomass and activity....