Skip to main content
ARS Home » Pacific West Area » Research » Research Projects Subjects of Investigation at this Location
Research Projects Subjects of Investigation at this Location

Each ARS research project has related subjects of investigation.  Listed below are the subjects of investigation currently conducted at this location.

Clicking on a subject of investigation will list the research projects within that  subject of investigation.
Subjects of Investigation

Air
Alfalfa
Almond
Apple
Apricot
Atmosphere, general/other
Barley
Beans (dry)
Beans (fresh, fresh-processed)
Bedding/garden plants
Beef cattle, general/other
Beef cattle, live animal
Berries and cane fruits, other
Blueberry
Carrot
Cherry
Citrus, general/other
Climate
Cocoa
Coffee
Cole crops (includes cabbage, kale, broccoli, brussels sprouts, cauliflower,
Cool season perennial grasses (includes bluegrass, bromegrass, fescue)
Corn (for sweetcorn use 1480)
Cotton, other
Cottonseed (for meal, oil, etc.)
Cranberry
Cross-commodity research--multiple crops
Cucurbits, other (includes pumpkin, squash, gourd)
Cut flowers, foliage, and greens
Dairy cattle, live animal
Date
Deciduous and small fruits, general/other
Deciduous tree fruits, other
Desert and semidesert shrub land and shinnery
Drainage and irrigation facilities and systems
Durum wheat
Edible tree nuts, general/other
Eggplant
Eggs
Fertilizers
Fiber crops, general/other
Filbert
Flax
Florist crops, other
Food (not readily associated with specific plant and animal products)
General Commodity
Goats, meat and mohair
Grain crops, general/other (includes buckwheat, millet, triticale)
Grain sorghum
Grapefruit
Grapes, other
Greens and leafy vegetables (includes endive, lettuce, spinach)
Guayule
Hard red spring wheat
Hard red winter wheat
Hemp
Herbaceous perennials and decorative greens
Honey bees
Hops
Horses, ponies, and mules
Individuals (as workers, consumers, members of society)
Insects
Kiwi
Land
Leguminous vegetables, other
Lemon
Lentil
Lesquerella
Long fiber cotton
Mango
Meat-type chicken, live animal
Melons (includes cantaloupe, muskmelon, watermelon)
Microorganisms, general/other
Milk
Mint
Miscellaneous and new crops, general/other
Mountain grasslands, meadow, and alpine
Mushrooms and other edible fungi
Nematodes
Oats
Oilseed and oil crops, general/other
Onion, garlic, leek, shallot
Orange
Ornamental trees and shrubs
Ornamentals and turf, general/other (includes cacti)
Other bees (non-Apis bees)
Other non-bee pollinators, general
Papaya
Parks and urban green space
Pasture
Pasture and forage crops, general/other
Peach
Peanut
Pear
Peas (dry)
Peas (fresh, fresh-processed)
Peppers
Perennial grasses, other
Pineapple
Pinyon-juniper
Plant research, general
Potato
Potted plants
Poultry meat
Raisin grapes
Rangelands and grasslands, general
Rangelands, other
Raspberry
Remote sensing equipment and technology
Research equipment and methods, general/other
Rice
Rubber, gum, and resin plants, other
Rye
Salmon
Seeds and other plant propagules
Sewage and waste disposal facilities and systems
Sheep, live animal
Shellfish
Soft red wheat
Soft white wheat (includes club, western)
Soil
Soil and land, general
Solanaceous and related crops, general/other (for potato use 1310)
Soybean
Spiders, mites, ticks, and other arthropods
Strawberry
Structures, facilities, and equipment, general/other
Sugar beet
Sugar cane
Sweet potato
Swine, general/other
Swine, live animal
Table grapes
Taro
The farm as an enterprise
Tomato
Trees, forests, and forest products, general
Tropical/subtropical fruit, general/other
Trout
Turf (includes bentgrass, bermudagrass, bluegrass, dichondra, fescue)
Upland cotton
Vegetables, general/other
Walnut
Warm season perennial grasses (includes dallisgrass, bluestems)
Water resources
Watersheds
Watersheds and river basins, general
Weather
Weeds
Wetland and riparian systems
Wheat, other
Wild animals
Wildlife and natural fisheries, general/other
Wine grapes
Wood and wood products
Research Projects within Walnut
item Agricultural Water, Land Retirement, and Habitat on the Pacific Flyway: A Non-market Value Assessment
item Application of a Watershed Model to Assess Groundwater Sustainability Under Changing Climatic and Management Scenarios
item Applications of Innovative Sensors to Quantify Atmospheric and Subsurface Fluxes of Water, Energy, and Contaminants
item Assessing the Fate of Metal Oxide Associated Contaminants During Managed Aquifer Recharge
item Conservation and Utilization of Genetic Resources and Associated Data for Perennial Crops Adapted to Mediterranean and Subtropical Climates
item Determining Subsurface Hydraulic Properties and Water Content Using Geophysical Methods and Limited Soil/Sediment Datasets
item Development of RNA Interference-based Resistance in Almond and Walnut Rootstocks Against Phytophthora Pathogens
item Driving Insect-Microbe Interactions by Natural Immune-Modulators: a Novel Tool for Insect Rearing and Control
item Enhancing Specialty Crop Irrigation: Advancing Evapotranspiration Forecasting with Satellites and Machine Learning
item Evaluating Models of Radiation Transfer and Carbon-Water Exchange in Vineyard and Orchard Canopies
item Evaluation of Walnut Blight Resistance in USDA-NCGR Juglans regia Accessions from the Republic of Georgia
item Examining Perennial Crop Physiology, Evapotranspiration, and Carbon Dynamics Using Surface-based Measurements and Proximal Remote Sensing Techniques
item Improved Agroecosystem Efficiency and Sustainability in a Changing Environment
item Improved Pest and Disease Control for Enhanced Woody Perennial Tree Crop and Grapevine Production
item Improving Irrigation Efficiencies and Sustainability in Woody Perennial Crops Specific to California
item Integrated Optimization Framework of California Water and Land Use
item Linking Climate Change Impacts on Forest Health, Fire Risk, and Vegetation and Snow Dynamics in California
item Linking Ground Based and Remotely Sensed Stress Physiology of California Woody Perennial Crops
item Linking Measured Root Zone Dynamics to Atmospheric and Subsurface Fluxes
item Machine Learning for Unearthing Environmental Drivers of Soil Moisture Dynamics and Scaling to Hillslope and Remote Sensing Observations
item Managed Aquifer Recharge to Sustain Irrigated Agriculture
item Monitoring Aquifer Recharge Dynamics in the Deep Vadose zone using Borehole Nuclear Magnetic Resonance Logging
item Nonequilibrium Processes Influencing Contaminant Fate During Managed Aquifer Recharge
item Novel Methods for the Mitigation of Human Pathogens and Mycotoxin Contamination of High Value California Specialty Crops
item Pest Management in Floriculture Crops through Applications of Optical Sensing and Other Innovative Technologies
item Phenotyping and Genotyping Walnut Germplasm from Juglans regia's Center of Origin
item Pretreatment Technologies for Managed Aquifer Recharge to Mitigate Clogging and to Remove Contaminants
item Putting phenotypic and genotyplc tools to work for improving walnut rootstocks (2023-2024)
item Quantifying Foodborne Pathogen Prevalence in Wild Birds Across Species and Landscape Types
item Quantifying Land-Atmosphere Fluxes of Carbon, Water, and Energy in Woody Perennial Cropping Systems
item Rethinking California’s Managed Aquifer Recharge Beyond Flat Terrains: A Multi-Method Assessment of Hillslope Processes
item Spatial and Ecological Considerations for Groundwater Markets and Managed Recharge
item Stacking RNAi-based Resistance to Phytophthora, Crown Gall, and Nematodes in Almond and Walnut Rootstocks
item Stacking RNAi-based Resistance to Phytophthora, Crown Gall, and Nematodes in Almond and Walnut Rootstocks
item Synergistic Managed Aquifer Strategies to Sustain Irrigated Agriculture
item Synergistic Managed Aquifer Strategies to Sustain Irrigated Agriculture (CA)
item Synergistic Managed Aquifer Strategies to Sustain Irrigated Agriculture (NACA)