搜索结果: 1-15 共查到“知识库 水文物理学 soil”相关记录31条 . 查询时间(0.118 秒)
Assessment of Spatial Patterns of Sediment Transport and Delivery for Soil and Water Conservation Programs
off-site soil erosion soil erosion deposition model
2015/8/14
Soil erosion has tremendous impacts on most river systems throughout the United States. Such non-point pollution results from land-use and agricultural practices and leads to sedimentation downstream,...
Using satellite hyperspectral imagery to map soil organic matter, total nitrogen and total phosphorus
total nitrogen total phosphorus partial least squares
2015/1/16
Up-to-date and accurate information on soil properties is important for precision farming and environmental management. The spatial information of soil properties allows adjustments of fertilizer appl...
An inversion method based on multi-angular approaches for estimating bare soil surface parameters from RADARSAT-1
multi-angular approaches estimating bare soil surface parameters
2010/12/22
This paper focuses on inversion of these parameters using a multi-angular approach based on RADARSAT-1 data with incidence angles of 35° and 47° (in mode S3 and S7). This inversion was performed with ...
Uncertainty in the determination of soil hydraulic parameters and its influence on the performance of two hydrological models of different complexity
soil hydraulic parameters performance two hydrological models different complexity
2010/2/20
Data of soil hydraulic properties forms often a limiting factor in unsaturated zone modelling, especially at the larger scales. Investigations for the hydraulic characterization of soils are time-cons...
Soil bioengineering for risk mitigation and environmental restoration in a humid tropical area
Soil bioengineering risk mitigation environmental restoration humid tropical area
2010/2/20
The use of soil bio-engineering techniques in developing countries is a relevant issue for disaster mitigation, environmental restoration and poverty reduction. Research on the autochthonal plants sui...
AN ESTIMATION OF EVAPOTRANSPIRATION BY MEANS OF THE WATER BALANCE OF A SOIL COLUMN
ESTIMATION OF EVAPOTRANSPIRATION MEANS OF THE WATER BALANCE SOIL COLUMN
2009/10/30
In this paper water-balance studies of a soil column at an observation site
at Ulvsunda, Stockholm, are reported. The change of the water storage in
the soil was obtained from soil moisture measurem...
Land Use Planning in Denmark:The Use of Soil Physical Data in Irrigation Planning
Land Use Planning Soil Physical Data Irrigation Planning
2009/10/28
The present paper deals with a model developed and used at the Danish
Ministry of Agriculture, Bureau of Land Data, for calculation of the amount
of water needed for irrigation. The model incorporat...
A one-dimensional mathematical model is used to simulate the process of
snow-melt infiltration in unsaturated frozen silt. Hydraulic and thermal parameters
are mainly based on data given in the lite...
Simulation of Soil Frost Depth and Effect on Runoff
Simulation Soil Frost Depth Effect on Runoff
2009/10/27
A physically based soil frost depth model usable with air temperature data and
precipitation data, is presented. Snow depth is calculated from precipitation
data using a physical snow cover model. T...
Calibration of Time Domain Reflectometry for Water Content in Peat Soil
Time Domain Reflectometry Water Content Peat Soil
2009/10/22
Since peat soil differs from mineral soil in several respects, mineral-soil calibration
functions for time domain reflectometry (TDR) are not necessarily applicable.
This paper evaluates a number of...
A DYNAMIC SOIL WATER MODEL FOR ENVIRONMENTAL SIMULATION PROBLEMS
soil water model Runge-Kutta Gill algorithm dimensional flow
2009/10/13
A soil water model of one dimensional flow, using the Runge-Kutta Gill algorithm, is described with the aim of forming a flexible general purpose simulation tool. The problem of 憇tiffness?appearing in...
A MODEL FOR SITE SPECIFIC ESTIMATION OF THE AVAILABLE SOIL WATER CONTENT AND THE EVAPOTRANSPIRATION IN FOREST ECOSYSTEMS
water balance model EVAPOTRANSPIRATION FOREST ECOSYSTEMS
2009/10/12
A vertical water balance model is presented which calculates a set of different water balance parameters (evapotranspiration, interception, runoff and soil water content) for various land covers and i...
MODELING THE EFFECT OF SOIL, VEGETATION TYPE AND DENSITY ON SOIL MOISTURE AND SURFACE ENERGY FLUX
Soil moisture SURFACE ENERGY FLUX atmospheric dynamics
2009/10/12
Soil moisture plays a crucial role in hydrological modeling and land-atmosphere energy balance by controlling the amount of evaporation and thermal heat exchange between the land surface and overlying...
NEAR REAL TIME VARIABILITY OF SOIL MOISTURE AND TEMPERATURE UNDER DIFFERENT LAND USE AND COVERTHE：THE ALABAMA MESONET
SOIL MOISTURE SOIL TEMPERATURE The Alabama Mesonet
2009/10/12
The Alabama Mesonet (ALMNet) has been established to provide near-real-time data to conduct research that aims to ensure the security, quality, and quantity of the Nation?s natural resources. The ALMN...
The significance and lag-time of deep through flow：an example from a small, ephemeral catchment with contrasting soil types in the Adelaide Hills, South Australia
ephemeral catchment Adelaide Hills soil types
2009/7/22
The importance of deep soil-regolith through flow in a small (3.4 km2) ephemeral catchment in the Adelaide Hills of South Australia was investigated by detailed hydrochemical analysis of soil water an...