Reforestation in the U.S. Pacific Northwest

The Pacific Northwest, as I define it for our presentpurposes, comprises those parts of the States of Oregonand Washington that are commonly obscured onsatellite photos by a blanket of clouds. Residentshave, on less cloudy days, found that this correspondswith the region between the Pacific Ocean Coast andthe crest of the Cascade Mountains (cf. Fig. 1).Visitors originally came to the area by boat, and thisis still probably the safest means of all-weather access.The people, like the climate, are inhospitable in thatthey have an 'ark', rather than 'lifeboat', philosophytowards those who immigrate.
How is it that these people, whose economic survivaldepends upon the exploitation of their forest, fields,and water, choose to restrict their future use of theland and slow the growth of population? In part, it isbecause some are emigrants from States in which theresults of exploitation are apparent, and who came tothis area to preserve something of what has been lostelsewhere. In part, also, it is because their economicbase rests on renewable resources which, if suchresources are to persist, can only be harvested at arate not exceeding that of growth. The questionswith which I shall now deal are: what exactly arethese resources in regard to forests, what are theircapacities for renewal, and what must be done tomaintain the whole system ?