搜索结果: 1-15 共查到“理学 soil water”相关记录27条 . 查询时间(0.132 秒)
Stochastic simulation of soil water status on reclaimed land in northern Alber
E. geostatistics spatial variability semi-variogram uncertainty
2015/8/11
Studies of spatial variability and simulation of available soil water and extractable soil water are scarce and yet such data are essential in hydrologic and solute transport modeling. A study was con...
Soil water retention and gross primary productivity in the Zábrod area in the Sumava Mts
hydrologic cycle evapotranspiration gross primary productivity entropy production soil water retention
2015/2/3
The synergy between the hydrologic extremes, plant transpiration, gross primary productivity, and soil water retention was studied in the experimental area Zábrod – Meadow in the Šumava Mts. (Boh...
Short-term changes in soil Munsell colour value, organic matter content and soil water repellency after a spring grassland fire in Lithuania
Short-term changes soil Munsell colour value organic matter content soil water repellency spring grassland fire Lithuania
2015/1/6
Fire is a natural phenomenon with important implications on soil properties. The degree of this impact depends upon fire severity, the ecosystem affected, topography of the burned area and post-fire m...
Stochastic simulation of soil water status on reclaimed land in northern Alberta
uncertainty Alberta Canada Stochastic simulation
2015/1/6
Studies of spatial variability and simulation of available soil water and extractable soil water are scarce and yet such data are essential in hydrologic and solute transport modeling. A study was con...
Seasonal changes in the soil hydrological and erosive response depending on aspect, vegetation type and soil water repellency in different Mediterranean microenvironments
soil hydrological erosive response
2015/1/5
Mediterranean areas are characterized by a strong spatial variability that makes the soil hydrological response highly complex. Moreover, Mediterranean climate has marked seasons that provoke dramat...
Forest decline caused by high soil water conditions in a permafrost region
Forest decline high soil water conditions permafrost region
2010/2/20
In the permafrost region near Yakutsk, eastern Siberia, Russia, annual precipitation (June–May) in 2005–2006 and 2006–2007 exceeded the 26-year (1982–2008) mean of 222±68 mm by 185 mm and 128 mm, resp...
Forest decline caused by high soil water conditions in a permafrost region
Forest decline high soil water conditions permafrost region
2010/3/5
In the permafrost region near Yakutsk, eastern Siberia, Russia, annual precipitation (June–May) in 2005–2006 and 2006–2007 exceeded the 26-year (1982–2008) mean of 222±68 mm by 185 mm and 128 mm, resp...
NUMERICAL ANALYSIS OF FINITE DEPTH PROBLEMS IN SOIL-WATER HYDROLOGY
NUMERICAL ANALYSIS FINITE DEPTH PROBLEMS SOIL-WATER HYDROLOGY
2009/10/29
The types of initial and boundary conditions which may be involved in the
flow of water through an unsaturated profile to a water table are discussed.
A numerical solution of the flow equation is th...
The lysimeter installation described comprises 36 concrete tanks each with
a soil surface of 4 m2.. The installation is useful for plant growth experiments
under natural conditions involving differe...
Nitrogen in Soil Water
Nitrogen Soil Water
2009/10/28
This review comprises a general description of nitrogen in soil water and the
use of nitrogen fertilizer. The following investigations on nitrogen leaching
and transformations are described: Investi...
Application of Soil Water Flow Theory in Field Simulation
Application Soil Water Flow Theory Field Simulation
2009/10/28
A numerical model based on a finite difference approximation of the basic
differential equation for soil water flow is described. The equation includes a
sink term representing moisture extraction b...
Selected Effects of Field Variability on Predictions from a Soil Water Finite Difference Model
Field Variability Predictions Soil Water Finite Difference Model
2009/10/28
Known field variability of soil hydrologic parameters is incorporated into a
general finite difference scheme for the prediction of near surface soil water
conditions, including runoff. It is shown ...
Spatial Variability of Soil Water and Evapotranspiration
Spatial Variability Soil Water Evapotranspiration
2009/10/27
Spatial variability in evapotranspiration from a crop covered field exposed to
homogeneous climatic conditions is partly caused by field variability in soil
physical properties and partly by field v...
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...