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c . Very little information is available concerning the soil<br />

forming processes in the Canadian subarctic and arctic regions .<br />

This<br />

is especially true of cryoturbation which is probably one of the most<br />

important factors .<br />

Cryoturbation affects not only the development<br />

of the soil but also distribution of vegetation and<br />

the stability of<br />

terrain . It is recommended that soil scientists study this process<br />

jointly with ecologists to determine the effect of cryoturbation on the<br />

ecosystem .<br />

d . In ecological studies, such as the study of plant succession<br />

and re-establishment of vegetative cover on disturbed areas, soil<br />

scientists should be involved together with ecologists and botanists .<br />

Soil scientists would provide information relevant to plant growth .<br />

This would include the physical<br />

(texture, structure) and chemical<br />

(nutrient content, pH)<br />

properties of the soils as well as its moisture<br />

content, depth of active layer,<br />

soil temperature, ice content and the<br />

degree of cryoturbation .<br />

e . Panchromatic, small-scale black and white photographs which<br />

were taken in the mid-1950's were used to conduct soil studies .<br />

If<br />

reconnaissance surveys and other environmental studies are to be<br />

undertaken in the future some funds and preplanning must be directed<br />

towards obtaining higher quality,<br />

recent, multispectral aerial<br />

photography and other remote sensing data . Studies carried out in<br />

other areas using recent remote sensing data were more accurate and<br />

provided greater amounts of<br />

terrain information than was obtained using<br />

old panchromatic, small-scale, black and white photographs .

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