On March 23, 2018, our group has seen a dramatic change with Boxelder-1 and Boxelder-3 in the upper canopy of 1,001 to 10,000 flower buds and less than 5% were open flowers, Figure 1 & 3. Boxelder-2 and Boxelder-4 has some flower bud growth over the past 5 days, but it also had some dying branches as well, Figure 2. There was still no breaking leaf buds or leaves in general because the temperature is still too cold. The temperature was 48 degrees Fahrenheit between 9:51 AM to 10:09 AM in the morning, and the humidity was 93% when the four Boxelders were being observed. The soil was extremely moist due to a snow storm four days ago that accumulated 5-6 inches of snow. There was about less than 5% of the ground cover with snow, and the sky was partly cloudy. Because of the snow storm, Boxelder-1 had lost some of its branches and fell on the ground next to the tree trunk. Many of the surrounding trees, not included in the experiment, suffered the same experience as Boxelder-1. (Post by D. Pitts)
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On March 23rd, members of our group inspected all four of our box elder trees for signs of growth. Monitoring happened starting at 11am, when the temperature was 39°F and the humidity was 47%. Two days prior it had snowed, but all of the snow had melted when monitoring was done. The snow had come after warm temperatures (50-60°F) a few days before. All of our box elder trees have leaf buds that have started breaking, but boxelder-2 and boxelder-3 currently have the most amount of breaking leaf buds. When looking up at the top of boxelder-2, it is apparent that there is more significant grown (leaves and flowers are developing) but it is hard to accurately monitor this growth. (Post by Z. Krajcirovic)
On March 14, 2018, members of our group went down to monitor the four boxelder trees. The weather was cloudy with strong winds, and the temperature was cold (31°F). The boxelder trees noticed a considerable drop in leaf buds compared to the previous weeks. It had just snowed a few inches on the 11th-12th, and the ground was still covered in snow and was very wet. The cold weather and snow explains the drop in the amount of leaf buds on the boxelders. (Post by G. Steeves)
On March 1st, 2018, our team went down to the Radford Bike Path to monitor our four boxelder trees. The weather was cloudy, as it had just rained, the temperature was relatively warm (56°F), and all the soil around our boxelder trees was very wet. Due to similar warmer temperatures throughout the week, we saw a several breaking leaf buds on boxelder-3 and boxelder-4 (11-100, 3-10 respectively). (Post by Z. Krajcirovic)
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April 2018
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