. Agricultural use and extent of British Columbia Wetland conservation; Wetlands; Zones humides; Zones humides. 0 - 20 - 40 - 60 80 - 100 - O-i 20- 40- 60-' Ahyz ^ — ** Cz Frost table Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Van Ryswyk, A. L; Canada. Agriculture Canada. Research Branch. [Ottawa] : Agriculture Canada, Research Branch

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