79.2. A residual forest of block cutting must
(1) have within the limits of the harvest site an area at least equal to the size of the block cutting harvest areas;
(2) be at least 200 m wide;
(3) be constituted of forest stands that are more than 7 m tall;
(4) be constituted of forest stands having a forest cover density higher than 40% or at least 25% without exceeding 40%, provided in that case that the proportion of the residual forest area having such a density is equal to or smaller than 20%, or if the proportion exceeds 20%, is equal to or smaller than the proportion of the forest stands having such a density in forests 7 m tall or more in the harvest site before management;
(5) be constituted of forest stands that are able to produce, as commercial species, a volume of mature rough timber of at least 50 m3/ha or a lower volume, provided in that case that the stands have a composition and area equivalent to those harvested;
(6) be constituted of forest stands belonging in a proportion of at least 20% to the same type of forest cover as those harvested; and
(7) not have been commercially harvested during the last 10 preceding years except in the cases provided for in the second paragraph of section 79.7.
For the purposes of subparagraph 2 of the first paragraph, a road or river may run through the residual forest; the treeless width of such road may not exceed 35 m and the width of the river at the boundaries of the riparian ecotone may not exceed an average of 35 m. The width of such a road or watercourse may not be included in the area of the residual forest nor in the width referred to in subparagraphs 1 and 2 of the preceding paragraph.
Despite subparagraph 3 of the first paragraph, 4 to 7 m tall stands may be scattered throughout the residual forest over less than 20% of the area, provided that the forest is constituted of at least 80% of forest stands more than 7 m tall.