Early Tapping and Taphole Longevity Strategies Dec 2020 VT Conference
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- เผยแพร่เมื่อ 28 ก.ย. 2024
- Dr. Abby van den Berg presenting on research on early tapping and taphole longevity strategies on sap yield and non-conductive wood (NCW) formation in maple trees at the Dec 2020 Vermont Maple Conference.
I don't see any comparisons with check valves--surely they would have shown a different picture.
That's probably true! We couldn't use Check-valve spouts in the study because one of the treatments used 1/4"-spouts, which weren't available at the time in the Check-valve format.
@@abbyvandenberg5906 Interesting--never heard of 3/4" spouts.
Why would you use 3/4" and not "normal sizes?
@@4UncleRichards Quarter-inch (1/4"), not 3/4" 🙂
Strange long-term trend line. Statistically it really shows nothing with such a low number of data points. If you take 1999-2014 for example, suddenly the trend looks the exact opposite. This is why the number of data points makes it worthless.
I'm not sure what trend line you're referring to, and generally I'm not much interested in responding to comments that include the word "worthless"
@@abbyvandenberg5906 ok? The trend I was referring too was early in the presentation showing a trend towards maple season ending sooner as the years progressed. The data is misleading at best.
@@abbyvandenberg5906 and to clarify, my point has nothing to do with climate change which clearly is changing.
I think the graph you're referring to is actually of the date of sugar maple budbreak at PMRC from 1990-2014, which does show a trend, with interannual variation, toward an earlier occurrence since monitoring began.
@@abbyvandenberg5906 Yeah the graph @6:12, if you look at the points from 99'-14' (last 3/4 of the timeline available) the trendline would be completely reversed. Would be interesting to see this updated to 2022.