"After trimming, floating substances increased by up to 4.3 times, but recovered within three years."

The National Institute of Forest Science under the Korea Forest Service observed water quality changes after pruning in a pine nut forest, finding that while particulate matter increased initially, it recovered within three years. Researchers from the Living Space Urban Forest Research Center of the National Institute of Forest Science monitored a pine nut plantation in Jikdong-ri, Soheul-eup, Pocheon-si, Gyeonggi-do, from 2017 to 2021 over a period of five years. The research team pruned 50% of the forest and applied a cable yarding method to minimize surface disturbance during tree transportation. The research team reported, "Analysis results showed that the watershed where pruning was conducted had an average of 4.3 times more particulate matter than the watershed where pruning was not done during the first two years. However, after three years, there was almost no difference between the two watersheds." This study, based on five years of forest water quality big data, proposed ...