搜索结果: 1-15 共查到“field scale”相关记录18条 . 查询时间(0.099 秒)
COMPARISON OF UNCALIBRATED RGBVI WITH SPECTROMETER-BASED NDVI DERIVED FROM UAV SENSING SYSTEMS ON FIELD SCALE
Remote Sensing UAV agriculture Yara N-Sensor winter wheat nitrogen vegetation index hyperspectral RGB
2016/12/1
The development of UAV-based sensing systems for agronomic applications serves the improvement of crop management. The latter is in the focus of precision agriculture which intends to optimize yield, ...
Effect of Floor Space Allowance on Pig Productivity across Stages of Growth: A Field-scale Analysis
Floor Space Allowance Pig Productivity Performance Field-scale Analysis
2016/5/20
A total of 152 pig farms were randomly selected from the five provinces in South Korea. During the experiment, the average temperature and relative humidity was 24.7°C and 74% in summer and 2.4°C and ...
An optimal temporal resolution of multispectral satellite data for field scale agriculture
Agriculture Crop Monitoring
2015/9/6
The objective of this study was to define the temporal resolution of future space missions dedicated to field-scale agriculture. The
approach consisted in the assessment of the retrieval performance ...
A Vent-Field-Scale Model of the East Pacific Rise 9°50'N Magma-Hydrothermal System
Vent-Field-Scale Model East Pacific Rise 9°50'N Magma-Hydrothermal System
2015/7/14
This paper describes a two-limb single-pass modeling approach constrained by vent temperature, heat flow, vent geochemistry, active-source seismology, and seismically inferred circulation geometry to ...
Geostatistical analysis of soil texture fractions on the field scale
estimation uncertainty kriging prediction soil texture fractions spatial variability
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...
Soil-terrain Modelling and Erosion Analysis at Field Scale Level, a Case Study
digital soil mapping DTM soil erosion relief pedometrics
2015/3/1
Pedometrical methods and digital soil mapping represent a progressive approach to the evaluation
of various terrain-related soil processes. A detailed digital terrain model was used for the analysis...
3D Field-Scale Environmental Multimedia System Validation of the Dispersion of Benzene for Trail Road Landfill Site and Its Risk Assessment
Environmental Multimedia System (EMS) Monte Carlo Method (MCM) Risk Assessment Multimedia Environments
2013/3/11
In this paper, a new modeling approach incorporating both a new environmental multimedia system (EMS) and the Monte Carlo method (MCM) is developed as a tool for the risk assessment of contaminants. A...
大田尺度下车载式土壤多参数测量方法研究（On-the-go Measuring Method of Soil Parameters in Field-scale）
土壤参数 车载式测量 大田尺度
2010/12/29
应用自行研制的土壤含水量、电导率与耕作阻力车载测试系统以及EM38电导率测试仪，在特定的耕作和施肥管理制度试验田中进行大田尺度下的土壤多参数车载测量研究。在土壤参数空间分布信息基础上进行相关分析，结果表明复合传感器具备农田土壤含水量和电导率变异响应能力，进一步建立了农田土壤电导率与含水量、耕作阻力以及施肥信息之间的统计预测模型。
Modelling field scale water partitioning using on-site observations in sub-Saharan rainfed agriculture
field scale water partitioning on-site observations sub-Saharan rainfed agriculture
2010/4/7
Smallholder rainfed farming systems generally realise sub-optimal crop yields which are largely attributed to dry spell occurrences during crop growth stages. However, through the introduction of appr...
Spatial Variability of Physical Parameters and Processes in Two Field Soils Part II:Water Flow at Field Scale
Spatial Variability Physical Parameters Two Field Soils Field Scale
2009/10/26
The horizontal variability of soil hydraulic parameters, water content and suction
mcasurcd within two research ficlds in Denmark is analyzed and discussed.
A numerical analysis of the flow in the t...
Spatial Variability of Physical Parameters and Processes in Two Field Soils Part Ill:Solute Transport at Field Scale
Spatial Variability Physical Parameters Two Field Soils Field Scale
2009/10/26
A numerical analysis of solute transport in two spatially heterogeneous fields is
carried out assuming that the fields are composed of ensembles of one-dimensional
non-interacting soil columns, each...
APPLICATION OF GEOTECHNOLOGY TO WATERSHED SOIL CONSERVATION PLANNING AT THE FIELD SCALE
Soil conservation planning India mountainous watersheds
2009/10/12
Soil conservation planning in inaccessible mountainous watersheds is a very tedious and expensive job. Generally, in India most soil conservation programs are carried out with physical reconnaissance ...
SURFATM-NH3:a model combining the surface energy balance and bi-directional exchanges of ammonia applied at the field scale
SURFATM-NH3 surface energy balance bi-directional exchanges ammonia field scale
2010/1/20
A new biophysical model SURFATM-NH3, simulating the ammonia (NH3) exchange between terrestrial ecosystems and the atmosphere is presented. SURFATM-NH3 consists of two coupled models: (i) an energy bud...
Comparison of three stream tube models predicting field-scale solute transport
convective lognormat transfer stochastic stream tube solute transport
2009/6/8
In this paper the relation between local- and field-scale solute transport parameters in an unsaturated soil profile is investigated. At two experimental sites, local-scale steady-state solute transp...
Field scale variability of solute transport parameters and related soil properties
convective-dispersive equation mobility index breakthrough curves
2009/6/8
The spatial variability of transport parameters has to be taken into account for a reliable assessment of solute behaviour in natural field soils. Two field sites were studied by collecting 24 and 36 ...