. Columbia River fisheries development program. Fisheries Columbia â¢* '4? * v9l J9 ⢠â !#^ ⢠®N ' '* *' v V >⢠'"'', r (V . 4 > S h;]& I i v .r. â . fw-' â ' â¢*» > /TT > Figure 12 Circular pump irrigation systems in Columbia River drainage. The extensive forested areas of much of the Basin have supported the development of a large and diversified wood-products industry (Figure 13). Logjams and wood wastes left behind by timber harvesting made large amounts of spawning and rearing habitat inaccessible (Figure 14). Early opera- tions destroyed much of the natu
. Columbia River fisheries development program. Fisheries Columbia â¢* '4? * v9l J9 ⢠â !#^ ⢠®N ' '* *' v V >⢠'"'', r (V . 4 > S h;]& I i v .r. â . fw-' â ' â¢*» > /TT > Figure 12 Circular pump irrigation systems in Columbia River drainage. The extensive forested areas of much of the Basin have supported the development of a large and diversified wood-products industry (Figure 13). Logjams and wood wastes left behind by timber harvesting made large amounts of spawning and rearing habitat inaccessible (Figure 14). Early opera- tions destroyed much of the natural forest cover resulting in rapid runoff, siltation, floods, low flows, high temperatures, debris, and destruction of food 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 United States. National Marine Fisheries Service. [Washington, D. C. ] : U. S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service
Size: 1773px × 1409px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionamericana, bookd, bookleafnumber15
