搜索结果: 1-15 共查到“农学 rainfall”相关记录31条 . 查询时间(0.171 秒)
Evaluation of discrepancies in spatial distribution of rainfall erosivity in the Czech Republic caused by different approaches using GIS and geostatistical tools
covariate geostatistics R factor rainfall intensity rainfall total USLE/RUSLE-GIS method
2017/6/26
The study presents all approaches of rainfall erosivity factor (R) computation and estimation used in the Czech Republic (CR). A lot of distortions stem from the difference in erosive rainfall criteri...
Comparison of different approaches to LS factor calculations based on a measured soil loss under simulated rainfall
geographic information systems topographic factor universal soil loss equation water erosion
2017/6/26
Geographic Information Systems (GIS) in combination with soil loss models can enhance evaluation of soil erosion estimation. SAGA and ARC/INFO geographic information systems were used to estimate the ...
Prevalence of Tree Regeneration by Sprouting and Seeding Along a Rainfall Gradient in Hawai’i
feral pig disturbance Sus scrofa tropical dry forest tropical wet forest
2015/11/13
Drought stress in tropical dry forests is thought to result in greater asexual regeneration via vegetative sprouting (e.g., basal, root, and branch layering) than occurs in
moister tropical forests. ...
Choosing an Appropriate Hydrological Model for Rainfall-Runoff Extremes in Small Catchments
flood prediction infiltration Jizerské hory Mts
2015/7/28
Many of them are ungauged. The damage
in the catchments is enormous, and the length of the torrents is about 23% of the total length of small rivers in the
Czech Republic. The Smědá experimental m...
Effects of Soil Cover and Protective Measures on Reducing Runoff and Soil Loss under Artificial Rainfall
bamboo fence eco-bags mine protective measures
2015/7/28
The hazards from wind, sand, and soil erosion caused by human activities, such as residue slopes in abandoned
urban mines, have resulted in a vicious circle of environmental degradation. Selecting t...
Physical characteristics affecting the infiltration of high intensity rainfall into a soil profile
flood variable source areas soil retention capacity soil moisture suction pressure
2015/3/10
Flooding caused by intensive precipitation has been in the centre of attention of both general public and scientists. From the flood risk management perspective, an integrated approach to catchment ma...
Evaluation of the relationships between runoff-rainfall-sediment related nutrient loss (A case study: Kojour Watershed, Iran)
clockwise hysteretic loop organic matter phosphorus loss regression models suspended sediment
2015/3/9
Suspended sediment (SS) resulted from distributed soil erosions facilitates soil organic matter and phosphorus (P) transportation and influences soil depletion and water quality. Organic matter (OM) i...
Comparison of rainfall-runoff models for design discharge assessment in a small ungauged catchment
Curve Number design rainfall peak discharge
2015/3/9
Design discharges in a small experimental catchment in Žarošice (Czech Republic) were evaluated using various methods for peak discharge assessment applying 24-h storm rainfalls reduced to s...
Affectability of splash erosion by polyacrylamide application and rainfall intensity
marl formation polyacrylamide FEL3 rainfall simulator splash erosion
2015/3/5
Splash erosion is recognized as the first stage in a soil erosion process and results from the soil surface bombing by rain drops. At the moment when rain drops conflict with the soil surface, soil pa...
Differentiation and regionalization of rainfall erosivity factor values in the Czech Republic
rainfall rainfall erosivity factor water erosion
2015/3/5
The rain erosivity R-factor is one of the main parameters in the Universal Soil Loss Equation (USLE). This paper describes the procedure used to update, differentiate and regionalize the rainfall eros...
Identifying the dependency pattern of daily rainfall of Dhaka station in Bangladesh using Markov chain and logistic regression model
Characteristics of Rainfall in Bangladesh Stochastic Models
2013/2/28
Bangladesh is a subtropical monsoon climate characterized by wide seasonal variations in rainfall, moderately warm temperatures, and high humidity. Rainfall is the main source of irrigation water ever...
Effects of El Nino/Southern Oscillation (ENSO) on rainfall characteristics in Katsina, Nigeria
El Niñ o Southern Oscillation La Niñ a
2011/1/13
Annual rainfall amount, onset and termination dates, duration of the rainy season, the number of wet and dry days and August rainfall characteristics in Katsina, Nigeria were compared between the ENSO...
Partitioning rainfall into throughfall, stemflow, and interception loss in an oriental beech (Fagus orientalis Lipsky) forest during the growing season
Beech growing season interception loss throughfall
2010/2/24
Partitioning gross rainfall (GR) into throughfall (TF), stemflow (SF), and interception loss (I), which has a very significant effect on water balance and the nutrient cycle in forest ecosystems, was ...
Applying evapotranspiration reference model and rainfall contribution index for agricultural water management plan in Burkina Faso
Evapotranspiration water scarcity rainfed cropping calendar irrigation efficiency food production
2010/9/14
Agriculture in Burkina Faso is largely dominated by 75% of rainfed crop production, which is characterized by short and unevenly distribution of annual rainfall. The shortage of water for crop product...
Effects of Water Table on Physiological Traits and Yield of Soybean:I. Effects of water table and rainfall on leaf chlorophyll content, root growth and yield
Chlorophyll content Root length Soybean Water table Yield
2009/7/28
The objective of this study was to obtain physiological information for the increasing yield of soybeans at drained paddy fields by controlling the water table level. We studied the effects of variou...
