搜索结果: 61-75 共查到“知识库 土壤学 Soil”相关记录472条 . 查询时间(0.261 秒)
Surface runoff simulation to mitigate the impact of soil erosion, case study of Třebsín (Czech Republic)
hydrological model shear stress shear velocity soil loss
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2015/3/5
The relation between soil erosion and its redistribution on land strictly depends on the process of surface runoff formation during intensive rainfall. Therefore, interrupting and reducing continuous ...
Impacts of land use changes on soil erosion in Pa Deng sub-district, adjacent area of Kaeng Krachan National Park, Thailand
land cover land use changes soil erosion Universal Soil Loss Equation
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2015/3/5
Soil erosion has been considered as the primary cause of soil degradation since soil erosion leads to the loss of topsoil and soil organic matters which are essential for the growing of plants. Land u...
Building soil spectral library of the Czech soils for quantitative digital soil mapping
diffuse reflectance spectroscopy digital soil mapping soil spectral library
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2015/3/3
Spectral libraries are the data archives of spectral signatures measured on natural and/or man-made materials. Here, the objective is to build a soil spectral library of the Czech soils (SSL-CZ). Furt...
Geostatistical analysis of soil texture fractions on the field scale
estimation uncertainty kriging prediction soil texture fractions spatial variability
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2015/3/3
Geostatistical estimation methods including ordinary kriging (OK), lognormal ordinary kriging (LOK), cokriging (COK), and indicator kriging (IK) are compared for the purposes of prediction and, in par...
Influence of terrain attributes and soil properties on soil aggregate stability
loess soil erosion soil structure topography water stable aggregates
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2015/3/3
The study on the relationship between the soil aggregates stability assessed using water stable aggregate (WSA) index and the selected terrain and soil properties was performed on a morphologically di...
Heavy metals phytoextraction from heavily and moderately contaminated soil by field crops grown in monoculture and crop rotation
Brassica juncea Cd heavy metals contamination Helianthus annuus mobilization Pb phytoextraction Triticale hexaploides
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2015/3/3
The uptake of Pb, Cd, Zn and biomass production of the plants Brassica juncea v. Opaleska, Triticale hexaploides var. Gabo and Helianthus annuus v. Maritza were observed in a field (trial) and a pot e...
Actual evapotranspiration from partially tile-drained fields as influenced by soil properties, terrain and crop
actual evapotranspiration Bowen ratio Cambisol cereals discharge zone energy balance grassland oil rape recharge zone soil physical properties Stagnosol tile drainage transient zone
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2015/3/3
Physical properties of soils have a significant influence on their water regime and should be considered when selecting suitable agricultural crops for particular sites, taking into account the crop p...
Urban soil contamination by potentially risk elements
contamination risk elements soil urban park
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2015/3/3
A high displacement of inhabitants into large towns, presence of industry, and constantly growing traffic have a high impact on the environment and considerable exposure of human health to environment...
Effect of controlled sprinkler chemigation on wheat crop in a sandy soil
chemigation fertigation nitrate pollution sprinkler fertilizing sprinkler irrigation
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2015/3/3
A two-year experiment was conducted in the desert west of the Nile Delta to study the effect of applying fertilizers and other agronomic chemicals through sprinkler irrigation water (a technique refer...
Comparative effects of different soil amendments on amelioration of saline-sodic soils
amendments plant salinity sodicity soil yield
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2015/3/3
A greenhouse experiment was conducted to test the potential of different soil amendments in saline-sodic soils reclamation; to affect the growth response of alfalfa (Medicago sativa L.) plants grown o...
Variations in selected soil physical properties with landforms and slope within an inland valley ecosystem in Ashanti region of Ghana
bulk density landscape position moisture content particle size distribution sawah rice field total porosity
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2015/3/3
One peculiar feature of the inland valleys abundant in West Africa is their site-specific hydrology, underlain mainly by the prevailing landforms and topography. Development and management of these la...
Comparison of two sensors ECH2O EC-5 and SM200 for measuring soil water content
bulk density CaCO3 ECH20 soil moisture sensor EC-5 fraction of sand particles SM200 sensor soil and soil water salinity soils of the Czech Republic soil water content
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2015/3/3
The goal of this study was calibration of the ECH20 soil moisture sensor EC-5 and the sensor SM200 for selected soils of the Czech Republic. Based on the soil maps of the Czech Republic and various cl...
Effect of different levels of humic acids on the nutrient content, plant growth, and soil properties under conditions of salinity
humic acids nutrient content plant growth salinity soil properties
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2015/3/3
In this study, the effects were investigated of salinity, foliar and soil applications of humic substances on the growth and mineral nutrients uptake of Corn (Hagein, Fardy10), and the comparison was ...
Modelling soil organic carbon changes on arable land under climate change – a case study analysis of the Kočín farm in Slovakia
arable land climate change Kocín farm Slovakia soil organic carbon
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2015/3/3
We have estimated soil organic carbon and crop yield changes under distinct climate change scenarios for the Kočín farm in Slovakia. Two regional climate change scenarios, i.e. the A2 and B2 SRES...
Changes of soil organic matter under minimum tillage in different soil-climatic conditions
Cambisol Chernozem humus content and quality humus fractionation minimum tillage
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2015/3/2
Quantitative and qualitative soil organic matter properties were observed in a specific large area experiment (Chernozem – Gross Enzersdorf, Austria) and in a medium-term field experiment (Cambisol – ...