K. Colton Flynn

K. Colton Flynn
United States Department of Agriculture | USDA · Agricultural Research Service (ARS)

Doctor of Philosophy

About

47
Publications
8,942
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
546
Citations
Introduction
Colton serves the public with a focus on US farmers in conjunction with the USDA ARS of Temple, TX. Specific research areas include but are not limited to pyric-herbivory, precision agriculture using remote sensing methods, long-term ecological research (LTER), long-term agroecosystem research (LTAR), food-water-energy nexus, and introduction of novel crops to support a growing population.

Publications

Publications (47)
Presentation
Abstract: Light Detection and Ranging (LiDAR) in precision agriculture is gaining traction as the technology becomes both accessible and affordable, particularly for assessing biophysical characteristics of vegetation. This study investigates the potential of unmanned aerial vehicle (UAV)-based LiDAR data for modeling Leaf Area Index (LAI), a key i...
Article
Full-text available
Texas Gulf is one of the 18 regional sites that is part of the USDA‐ARS Long‐Term Agroecosystem Research (LTAR) network and focuses on cropland and integrated grazing land research in Central Texas, addressing challenges posed by soil characteristics, climate variability, and urbanization. This paper provides brief site descriptions of the two Crop...
Article
Full-text available
Extreme weather and climate events have become more frequent and directly affect the ecological structure and function of integrated grazing lands. While the Great Plains have experienced a long history of regular disturbances from drought and floods, grazing, and fires, the increased frequency and magnitude of these disturbances can reduce ecologi...
Article
Full-text available
Winter wheat (Triticum aestivum L.) is an essential, high-quality forage used for grazing stocker cattle from fall to spring in the US Southern Great Plains (SGP). However, the lack of nutritious forages during summers limits grazing by stocker cattle. To fill this quality gap, a short season species capable of producing significant yield and quali...
Article
Full-text available
Introduction: Machine learning methods combined with satellite imagery have the potential to improve estimates of carbon uptake of terrestrial ecosystems, including croplands. Studying carbon uptake patterns across the U.S. using research networks, like the Long-Term Agroecosystem Research (LTAR) network, can allow for the study of broader trends i...
Article
Full-text available
Castor (Ricinus communis L.) is an important industrial crop with a wide range of industrial and pharmaceutical applications. Brazil is among the largest castor-producing countries. Between 2004 and 2010, castor cultivation was stimulated with an emphasis towards biodiesel production. However, this was not enough to leverage the production of casto...
Article
Full-text available
Hyperspectral remote sensing provides opportunity for a nondestructive tool for estimating biochemical or biophysical characteristics of agricultural crops. Importantly, among rotational legume production, timely identification of the extent of nitrogen accumulation (N accum) by the legumes is vital for optimization of N fertilizer application and...
Article
Full-text available
With increasing livestock production due to the high demand for consumption, green fodder, as an essential livestock supplementation, its planted area has grown rapidly and will continue to grow in China. However, the climatic feedback of this rapid land cover conversion is still unclear. Using multisource data (e.g., remote sensing observation and...
Article
Full-text available
Canada's livestock production and human populations are concentrated in southern regions. Understanding spatial and temporal distributions of animals and excreted nutrients is key to optimizing manure resources and minimizing impact of livestock. Here, we identify manureshed concerns and opportunities by reconciling nitrogen supply and demand on a...
Article
Full-text available
Scholars suggest that marginalized people in non-urban areas experience higher distress levels and fewer psychosocial resources than in urban areas. Researchers have yet to test whether precise proximity to urban centers is associated with mental health for marginalized populations. We recruited 1733 people who reported living in 45 different count...
Article
Full-text available
The uncoupling of animal and crop production has resulted in long-term accumulation of manure nutrients in many areas, contributing to nutrient pollution. Prudent recycling of manure's nutrient resources requires reconnecting operations that produce manure with agricultural lands in need of nutrients. Thus the need to frame manure management via “m...
Article
Full-text available
Flooding can cause billions of dollars in crop losses per year. One method to combat susceptibility to flooding is through the identification and use of crops that withstand short flooding events. Tepary bean (Phaseolus acutifolius A. Gray) is an underused crop native to North America and currently grown in small amounts by the indigenous peoples o...
Article
Full-text available
The manureshed represents cropland needed to safely assimilate manure nutrients from an animal feeding operation. Dairy manuresheds can be contained on‐farm but may need to involve additional farms that can assimilate excess nutrients. We present case studies reviewing challenges and opportunities to manureshed management in four major dairy‐produc...
Article
Full-text available
The U.S. swine industry is diverse, but opportunities exist to strategically improve manure management, especially given much of the industry's vertical integration. We investigate opportunities for improving manureshed management, using swine production examples in Iowa, North Carolina, and Pennsylvania as a lens into historical trends and the cur...
Article
The pending extensive rice expansion in northeastern Asia, especially in northeast China, affects regional climate by altering both biogeochemical and biophysical processes. While the biogeochemical effects (e.g., CO2, CH4) of rice expansion have attracted plenty of attention, its biophysical effects have not been well documented, especially its in...
Article
Full-text available
The study aimed to evaluate the frost tolerance variability of Ethiopian chickpea (Cicer arietinum L.) germplasm under controlled environment using growth chamber. A total of 72 genotypes were screened for frost tolerance using complete randomized design with two replications. The analysis of variance result indicated that there was a significant (...
Article
Full-text available
Evaluation of the genetic diversity and an understanding of the genetic structure and relationships of chickpea genotypes are valuable to design efficient germplasm conservation strategies and crop breeding programs. Information is limited, in these regards, for Ethiopian chickpea germplasms. Therefore, the present study was carried out to estimate...
Article
Full-text available
Agricultural communities of New Mexico regularly redistribute manure nutrients from dairies to nearby croplands to fulfill agronomic nutrient needs and protect water quality. Yet competition for water resources can result in land use change that affects these cooperative manure transfers. Focusing on three clusters of New Mexico dairy farms and the...
Article
Full-text available
Alfalfa (Medicago sativa L.), referred to as the "Queen of Forages" because of its importance among forage crops, provides high quality forage for the livestock industry. The timing and frequency of alfalfa hay harvesting have implications on its quality and quantity. With ever-increasing capability, it is possible to use satellite remote sensing d...
Article
Full-text available
Manureshed management seeks to address systemic imbalances in nutrient distributions at scales beyond the farmgate and potentially across county and state boundaries. The U.S. poultry industry, which includes broilers, layers, pullets, and turkeys, has many characteristics that are compatible with achieving a vision of manureshed management, includ...
Article
Full-text available
p>Frost stress is one of the most significant abiotic factors affecting chickpea (Cicer arietinum L.) production in the Ethiopian highlands. To investigate the frost tolerance of chickpea, 673 genotypes were characterized using an augmented design at Bakelo, Debre Berhan, Ethiopia for two years. A significant (p < 0.01) variability amongst genotype...
Article
Full-text available
Tall fescue (Schedonorus arundinaceus) is a common perennial forage in cattle pastures of the southeastern United States. A mutualistic fungal endophyte normally infects the grass and produces ergot alkaloids toxic to livestock, but fungal biotypes that have no ergot alkaloid production have been developed. Here remote sensing methods were used to...
Article
Full-text available
Finger millet (Eleusine coracana Gaertn L.) is an important grain crop for small farmers in many countries. Reliable estimates of crop parameters, such as crop growth and nitrogen (N) content, through remote sensing techniques can improve in-season management of finger millet. This study investigated the relationships of hyperspectral reflectance w...
Article
Full-text available
Understanding drought effects on vegetative health for crop producing locations, such as the Seferihisar‐Kavakdere region in western Turkey, is vital for water and crop management. This study used Landsat‐derived spectral vegetation indices, specifically normalized difference vegetation index (NDVI), enhanced vegetation index (EVI), and land surfac...
Article
Full-text available
Information on the diversity changes occurring in farmers’ field overtime is very important for effective genetic resource conservation and use. Thus, this study was initiated to investigate the phenotypic diversity changes between the current (2017) and previous chickpea (Cicer arietinum L.) collections (1979–1983) of the Amhara Regional State, Et...
Article
Full-text available
Castor (Ricinus communis L.) is an important industrial crop used in the production of nylon, cosmetics, and many industrial lubricants. Currently, castor production in the USA has nearly ceased for > 45 years, resulting in vast imports of castor oil to meet US demands. Renewed interest in this crop, especially the possibility of its use as a biolu...
Article
Full-text available
As remotely sensed data becomes more readily available around the world, satellites such as Landsat-8 and Sentinel-2 have great potential to support precision agriculture. Sensors with high spectral and spatial resolutions are particularly optimal for limited land resource farmers to improve land management. The objective of this short communicatio...
Article
Full-text available
Achieving reproducibility and replication (R&R) of scientific results is tantamount for science to progress, and it is also necessary for ensuring the self-correcting mechanism of the scientific method. Topics of R&R have sailed to the forefront of research agenda in many fields recently but have received less attention in remote sensing in general...
Article
Full-text available
Nutrient recycling is fundamental to sustainable agricultural systems, but few mechanisms exist to ensure that surplus manure nutrients from animal feeding operations are transported for use on nutrient-deficient croplands. As a result, manure nutrients concentrate in locations where they can threaten environmental health and devalue manure as a fe...
Article
LGB people may become less accessible to health professionals as technology reshapes LGB social connections. Though electronic forms of health promotion are effective, some interventions must be delivered in person. We use GIS to analyze characteristics (e.g., gender identity, depression, and performance involvement) shared by 114 gay, cisgender ma...
Article
Full-text available
Tallgrass prairie may respond differently to prescribed burning and subsequent preferential grazing, termed pyric herbivory, under variable climate conditions. This 6-yr study (2011−2016) compared tallgrass prairie pastures that were subjected to burned and unburned conditions while exposed to grazing under differing climate conditions in the South...
Article
Livestock production has increased globally over the past 50 years to meet the demand of population growth and, along with it, increased demand for meat. Agricultural managers are pressed to increase production of forage for grazing to meet these demands, along with crop production for both humans and livestock. Therefore, nutritious forage for liv...
Article
Full-text available
Anthropogenic change, specifically urbanization, has lasting impacts on biodiversity and ecosystem services. Past work has linked green space variables and socioeconomic characteristics with biodiversity in urban areas. Shrinking cities present an interesting case for studying biodiversity because many of these places have implemented demolition po...
Article
Full-text available
As urban populations rapidly rise worldwide, it is increasingly necessary to determine the accurate distribution and configuration of the population in order to appropriate resources and services. Census-based methods for obtaining population counts are time consuming, labour intensive, and costly. Researchers have turned to remote sensing to estim...
Article
Debate has surrounded corn-based ethanol since its introduction as a biofuel. This debate centers on whether corn-based ethanol plays a positive or negative role with regard to energy consumption, hunger and malnutrition, environmental degradation, and economic impacts. This study aims to improve the understanding of the changes in the amount of la...
Article
Full-text available
As farming practices have moved towards largescale production methods, the average individual has become further removed from the practice of agriculture. As a result, many high school students gain the majority of their knowledge of farming in a classroom setting. This case study was conducted to better understand if gender plays a role in differi...

Network

Cited By