U.S. Student Teams Win First-Ever International Soil Judging Contest
In the U.S. alone, thousands of soil scientists use the skill of “soil judging” in their daily jobs. They look at and feel the soil to determine its health, carbon content, drainage properties and other factors. Using only their eyes, sense of touch and a limited set of tools, they make land usage recommendations about agriculture, construction, wastewater treatment, recreation and more. In addition, many companies who hire crop advisors look for excellent soil judging skills. Indeed, the skills honed by soil judging are used by soil scientists around the world.
For this reason, the Soil Science Society of America (SSSA) sent eight soil science students to the twentieth World Congress of Soil Science, Jeju Island, South Korea last week. Aided by two coaches, the students competed in the first International Soil Judging Contest. The students competed on two U. S. teams—the teams took first and second place in the overall competition, against thirteen teams. Tyler Witkowski, University of Maryland, placed second out of 45 contestants in the individual competition. Emily Salkind, Virginia Tech; Nancy Kammerer, Penn State; Julia Gillespie, Virginia Tech and Caitlin Hodges, University of Georgia finished fourth through eighth, respectively.
“Learning how to describe and evaluate soils in the field is an important part of training for soil scientists,” says Chris Baxter, the coach for the winning team, and a professor at University of Wisconsin-Platteville. “These are skills that the professional soil scientist uses every day. It was a once-in-a-lifetime experience for them. The students worked very hard and were excellent ambassadors for the U.S. and for competitive soil judging.”
John Galbraith, a professor at Virginia Tech, was the coach for the second place team. “We are very proud of how the U.S. students represented themselves and their country, both in performance, character, and friendliness with other teams,” says Galbraith.
Students were selected based on their performance during the National Collegiate Soils Contest held earlier this year. The contest encourages team effort and individual knowledge in identifying, evaluating, classifying and describing soil profiles. The contest is a joint program of the SSSA and American Society of Agronomy. SSSA and its cooperating organization, the Agronomic Science Foundation (ASF), funded the students’ trips to Korea.
“Our experiences in Jeju were once in a lifetime opportunities,” says Witkowski. “We saw types of soils called Andisols and Melanic epipedons—which are not in abundance in the U.S. Seeing them was something new to all of us competing from the U.S. Seeing the soils was an experience, but meeting students from other countries interested in soils (and soil judging) was surreal. We had a great time meeting other people and looking at the soils.”
In the contest, participants described soil profiles using standard field techniques, classified the soil using either Soil Taxonomy or the World Reference Base, and provided interpretations for land use based on soil and site characteristics. Contestants were graded on the level of agreement between their descriptions and those made by a team of official judges from South Korea, the U.S., Australia and Hungary. The contest included an individual competition and a team competition where teams of up to four contestants worked together to create a single description. The overall team winner was determined by combining the individual and team scores.
“I had the most amazing experience being part of the first International Soil Judging Contest,” says Nancy Kammerer, a student at Penn State University. “Meeting other students from around the world, getting to see new soils and ways of classifying soils and touring the beautiful island of Jeju are all things I will remember for a lifetime. The World Congress of Soil Scientists and the Koreans were the most gracious hosts and helped to make this trip extraordinary.”
“The World Congress of Soil Science organization of Korea did a marvelous job in supporting the first international soil judging contest,” says Jan Hopmans, president of SSSA and a professor at University of California-Davis. “SSSA thought it was important to send students to the competition. Having the students meet others also studying soil science from different countries, compete and interact with them is important for global camaraderie, understanding of various cultures and a great way to jumpstart international collaborations. Also, with the International Year of Soils starting in 2015, activities such as the International Soil Judging Contest increase awareness of the relevance of soils, as the students network and share their experiences using their own social media.”
Student competitors sponsored by SSSA and ASF were: Tyler Witkowski, University of Maryland; Emily Salkind, Virginia Tech; Caitlin Hodges, University of Georgia; Kyle Weber, University of Wisconsin-Platteville; Bianca Peixoto, University of Rhode Island; Julia Gillespie, Virginia Tech; Nancy Kammerer, Penn State; and Brian Maule, Northern Illinois University.
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Since even moderate-intensity workouts offer a slew of benefits, walking is a good choice for people looking to stay healthy.
How to Rock Your Walk<p>Walking isn't just fun and healthy. It's accessible.</p><p>"Walking is cheap," says Dr. John Paul H. Rue, a sports medicine doctor at <a href="https://mdmercy.com/" target="_blank">Mercy Medical Center in Baltimore</a>. "You can do it anywhere at any time; [it] requires little to no special equipment and has many of the same cardio benefits as running or other more intense workouts."</p><p>Want to up your walking game? Try the tips below.</p>
Use Hand Weights<p>Cardio and strength training can go hand-in-hand when you add weights to your walk.</p><p>A <a href="https://journals.lww.com/acsm-msse/Fulltext/2019/03000/Associations_of_Resistance_Exercise_with.14.aspx" target="_blank">2019 study</a> found that weight training is good for your heart, and <a href="https://www.mayoclinicproceedings.org/article/S0025-6196(17)30167-2/abstract" target="_blank">research</a> shows it reduces the risk of developing a <a href="https://www.healthline.com/health/nutrition-metabolism-disorders" target="_blank">metabolic disorder</a> by 17 percent. People with metabolic disorders have a higher chance of being diagnosed with high cholesterol, high blood pressure, and diabetes.</p><p>Rue suggests not carrying weights for your entire walk.</p><p>"Hand weights can give you an added level of energy burning, but you have to be careful with these because carrying [them] over a long period of time or while walking could actually lead to some overuse injuries," he says.</p>
Make It a Circuit<p>As another option, consider doing a circuit. First, put a pair of dumbbells on your lawn or somewhere in your home. Walk around the block once, then stop and do some bicep curls and tricep lifts before walking around the block again.</p><p>Rue recommends <a href="https://www.healthline.com/health/exercise-fitness/running-with-weights" target="_blank">avoiding ankle weights</a> during cardio workouts, as they force you to use your quadriceps rather than hamstrings. They can also cause muscle imbalance, according to the <a href="https://www.health.harvard.edu/staying-healthy/wearable-weights-how-they-can-help-or-hurt" target="_blank">Harvard Health Letter</a>.</p>
Find a Fitness Trail<p>Strength training isn't limited to weights. You can get stronger by <a href="https://www.healthline.com/health/bodyweight-workout" target="_blank">simply using your body</a>.</p><p>Often found at parks, fitness trails are obstacle courses with equipment for pullups, pushups, rowing, and stretches to build upper and lower body strength.</p><p>Try searching "fitness trails near me" online, checking out your local parks and recreation website, or calling the municipal office to <a href="https://calisthenics-parks.com/" target="_blank">find one</a>.</p>
Recruit a Friend<p>People who workout together stay healthy together.</p><p><a href="https://bmcgeriatr.biomedcentral.com/articles/10.1186/s12877-017-0584-3" target="_blank">One study</a> showed that older adults who exercised with a group improved or maintained their functional health and enjoyed their lives more.</p><p>Enlist the help of a walking buddy with a regimen you aspire to have. If you don't know anyone in your area, apps like <a href="https://www.strava.com/" target="_blank">Strava</a> have social networking features so you can get support from fellow exercisers.</p>
Try Meditation<p>According to the <a href="https://www.nccih.nih.gov/research/statistics/nhis/2017" target="_blank">2017 National Health Interview Survey</a>, published by the National Institutes of Health, meditation is on the rise, and for good reason.</p><p>Researchers <a href="https://pubmed.ncbi.nlm.nih.gov/29616846/" target="_blank">found</a> that mind-body relaxation practices can regulate inflammation, <a href="https://www.healthline.com/health/biological-rhythms" target="_blank">circadian rhythms</a>, and <a href="https://www.healthline.com/health/glucose" target="_blank">glucose</a> metabolism, as well as lower <a href="https://www.healthline.com/health/high-blood-pressure-hypertension" target="_blank">blood pressure</a>.</p><p>"Any form of exercise can be turned into a meditation of some type, either by the surroundings you are walking in, like a park or trail, or by blocking out the outside world with music on your headphones," Rue says.</p><p>You can also play a podcast or download an app like <a href="https://www.headspace.com/headspace-meditation-app" target="_blank">Headspace</a> that has a library of guided meditations to practice while you walk.</p>
Do Fartlek Walks<p>Typically used in running, fartlek intervals alternate periods of increased and decreased speed. These are <a href="https://www.healthline.com/nutrition/benefits-of-hiit" target="_blank">high-intensity interval training (HIIT)</a> workouts, which allow exercisers to accomplish more in less time.</p><p><a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0154075" target="_blank">One study</a> showed that 10-minute interval training improved <a href="https://www.healthline.com/health/metabolic-syndrome" target="_blank">cardiometabolic</a> health, or lowered the risk of heart disease, stroke, and diabetes, just as well as working out at a continuous pace for 50 minutes.</p><p><a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0111489" target="_blank">Research</a> also shows that HIIT workouts increase muscle <a href="https://www.healthline.com/health/fast-twitch-muscles" target="_blank">oxidative</a> capacity, or the ability to use oxygen. To do a fartlek walk, try walking at an increased pace for 3 minutes, slow down for 2 minutes, and repeat.</p>
Gradually Increase Pace<p>A faster walking pace is associated with a lower risk of <a href="https://www.healthline.com/health/copd" target="_blank">chronic obstructive pulmonary disease (COPD)</a> and respiratory diseases, according to a <a href="https://pubmed.ncbi.nlm.nih.gov/30303933/" target="_blank">2019 study</a>.</p><p>Still, it's best not to go from a stroll to an Olympic-worthy power walk in a day. Instead, increase your pace gradually to prevent injury.</p><p>"Start by walking at a brisk pace for about 10 minutes per day, 3 to 5 days per week," Rue says. "Once you've done this for a few weeks, increase your time by 5 to 10 minutes per day until you get to 30 minutes."</p>
Add Stairs<p>You've likely heard that taking the stairs instead of an elevator is a way to add more movement into your daily routine. It's also a way to step up your walking. Stair climbing has been shown to <a href="https://www.sciencedirect.com/science/article/pii/S2211335519301123?via%3Dihub" target="_blank">decrease the risk of mortality</a> and can easily add a bit more challenge to your walk.</p><p>If you don't have stairs in your home, you can often find them outside a local municipal building, train station, or at a high school stadium.</p>
Is Your Walk a True Cardio Workout?<p>Not all walks are equal. A walk that's too leisurely may not provide enough burn to qualify as cardio. To see if you're getting a good workout, try to <a href="https://www.healthline.com/health/how-to-check-heart-rate" target="_blank">measure your heart rate</a> using a monitor.</p><p>"A target goal for a good walking workout heart rate is about 50 to 70 percent of your maximum heart rate," Rue says, adding that maximum heart rate is <a href="https://www.healthline.com/health/fitness-exercise/fat-burning-heart-rate" target="_blank">typically calculated</a> by 220 beats per minute minus your age.</p><p>You can also monitor how easily you can carry on a conversation while you walk to gauge your heart rate.</p><p>"If you can walk and carry on a normal conversation, that's probably a lower intensity walk," says Rue. "If you are slightly breathless but can still have a conversation, that's probably a moderate workout. If you are out of breath and can't talk normally, that's a vigorous workout."</p>
Takeaway<p>By shaking up your routine, you can add excitement to your workout and reap even more rewards than a basic walk provides. Increasing the pace and intensity of a workout will make it more effective.</p><p>Simply pick your favorite variation to add some spice to your next walk.</p>
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