24 Result(s)
within
Ri** Feng
Climate Change
Environment, general
Sustainable Development
Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
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Article
Effects of different water and nitrogen treatments on greenhouse tomato yield, water use efficiency, and physiological responses
This study aimed to explore how the yield, water use efficiency (WUE), and physiological characteristics of greenhouse-cultivated tomatoes in Northeast China respond to different water and nitrogen treatments ...
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Article
LAI estimation across California vineyards using sUAS multi-seasonal multi-spectral, thermal, and elevation information and machine learning
In agriculture, leaf area index (LAI) is an important variable that describes occurring biomass and relates to the distribution of energy fluxes and evapotranspiration components. Current LAI estimation method...
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Article
Open AccessEvaluating different metrics from the thermal-based two-source energy balance model for monitoring grapevine water stress
Precision irrigation management requires operational monitoring of crop water status. However, there is still some controversy on how to account for crop water stress. To address this question, several physiol...
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Article
Time-series clustering of remote sensing retrievals for defining management zones in a vineyard
Management zones (MZs) are efficient for applying site-specific management in agricultural fields. This study proposes an approach for generating MZs using time-series clustering (TSC) to also enable time-spec...
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Article
Open AccessEvaluation of satellite Leaf Area Index in California vineyards for improving water use estimation
Remote sensing estimation of evapotranspiration (ET) directly quantifies plant water consumption and provides essential information for irrigation scheduling, which is a pressing need for California vineyards ...
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Article
Influence of modeling domain and meteorological forcing data on daily evapotranspiration estimates from a Shuttleworth–Wallace model using Sentinel-2 surface reflectance data
Sustainable use of available water resources in viticulture can be aided by frequent high-resolution information on vineyard water status. Recently, a new Shuttleworth–Wallace evapotranspiration (ET) model, wh...
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Article
Application of the vineyard data assimilation (VIDA) system to vineyard root-zone soil moisture monitoring in the California Central Valley
Efforts to apply gridded root-zone soil moisture (RZSM) products for irrigation decision-support in vineyards are currently hampered by the difficulty of obtaining RZSM products that meet required accuracy, re...
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Article
Performance of Sentinel-2 SAFER ET model for daily and seasonal estimation of grapevine water consumption
Assessment of water consumption is a crucial task for irrigation management in grapevines, especially in areas with limited water resources, which is the case of California Central Valley. This study evaluated...
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Article
Open AccessApplication of a remote-sensing three-source energy balance model to improve evapotranspiration partitioning in vineyards
Improved accuracy of evapotranspiration (ET) estimation, including its partitioning between transpiration (T) and surface evaporation (E), is key to monitor agricultural water use in vineyards, especially to e...
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Article
Open AccessImproving the spatiotemporal resolution of remotely sensed ET information for water management through Landsat, Sentinel-2, ECOSTRESS and VIIRS data fusion
Robust information on consumptive water use (evapotranspiration, ET) derived from remote sensing can significantly benefit water decision-making in agriculture, informing irrigation schedules and water managem...
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Article
Impact of advection on two-source energy balance (TSEB) canopy transpiration parameterization for vineyards in the California Central Valley
Water conservation efforts for California’s agricultural industry are critical to its sustainability through severe droughts like the current one and others experienced over the last two decades. This is most ...
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Article
Irrigation and fertilization management to optimize rice yield, water productivity and nitrogen recovery efficiency
Increasing water scarcity and environmental contamination with excess chemical nitrogen fertilizer use necessitate the development of water-nitrogen conservation technology in rice production. Therefore, a 2-y...
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Article
A multi-year intercomparison of micrometeorological observations at adjacent vineyards in California’s Central Valley during GRAPEX
California is among the largest wine-producing regions in the world. It is also a region with limited water resources. To ensure that scarce water resources are used effectively, the ongoing Grape Remote sensi...
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Article
Influence of wind direction on the surface roughness of vineyards
Remote sensing-based models are the most viable means of collecting the high-resolution spatially distributed estimates of evaporative water loss needed to manage irrigation and ensure the effective use of lim...
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Article
Determining a robust indirect measurement of leaf area index in California vineyards for validating remote sensing-based retrievals
Accurate ground-based measurements of leaf area index (LAI) are needed for validation of remote sensing-based retrievals used in models estimating plant water use, stress, carbon assimilation and other land su...
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Article
Evaluation of TSEB turbulent fluxes using different methods for the retrieval of soil and canopy component temperatures from UAV thermal and multispectral imagery
The thermal-based Two-Source Energy Balance (TSEB) model partitions the evapotranspiration (ET) and energy fluxes from vegetation and soil components providing the capability for estimating soil evaporation (E...
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Article
Evapotranspiration estimates derived using thermal-based satellite remote sensing and data fusion for irrigation management in California vineyards
Irrigation in the Central Valley of California is essential for successful wine grape production. With reductions in water availability in much of California due to drought and competing water-use interests, i...
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Article
Impact of different within-canopy wind attenuation formulations on modelling sensible heat flux using TSEB
The unique vertical canopy structure and clumped plant distribution/row structure of vineyards and orchards creates an environment that is likely to cause the wind profile inside the canopy air space to deviat...
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Article
Formation mechanism for emitter composite-clogging in drip irrigation system
Revealing the mechanism and influential path of emitter clogging in drip irrigation is the basis to control this issue. Eight commonly used flat emitters were tested to analyze the effects of emitter flow path...
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Article
Composite clogging characteristics of emitters in drip irrigation systems
This study investigated the characteristics of emitter clogging substance in 16 kinds of drip irrigation emitters using 3 kinds of water sources that could typically induce composite clogging in the Yellow Riv...
