Production Forestry in Northern Maine I - site preparation and planting of white spruce
Автор: Bob Seymour
Загружено: 2022-08-28
Просмотров: 1045
Описание: Bob Seymour describes a new planting of white spruce on a fresh clearcut of a 35-year-old balsam fir stand, many of which were already rotten on the butt. JD Irving land, about mile 4 on the St Francis Road. Obviously, the former stand was part of a large clearcut done in the mid-1980s at the peak of the budworm "salvage" era, and regenerated naturally (unlike the plantation shown in a companion video on commercial thinning adjacent to it down the road). I was last here probably 20 years ago on an Irving FSC audit, and everything has grown up! Somewhat amazing to me that Irving would clearcut a 35-year-old stand, but this illustrates their long-standing determination to get rid of fir. Site preparation was done by a disc trencher which makes mounds about 8 feet apart on which the planters plant the container stock on a fixed spacing. Here the spacing within the rows is narrow, about 6 feet, which may or may not be their prescription. A 6x8 rectangular spacing is almost exactly 900 trees per acre, a good stocking for very high yields if early thinning is done. I'll check with Irving foresters to verify the details here.
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