00000nam 2200000zi 4500 9.883321 CaOODSP 20221107170533 m o d f cr |n||||||||| 200106s1973 oncba o f000 0 eng d CaOODSP eng rda CaOODSP n-cn-nt n-cn-yk R73-4/73-4E-PDF R72-7973 Zoltai, S. C., author. Studies of vegetation, landform and permafrost in the Mackenzie Valley : terrain, vegetation and permafrost relationships in the northern part of the Mackenzie Valley and northern Yukon / by S.C. Zoltai and W.W. Pettapiece, for the Environmental-Social Program, Northern Pipelines. Terrain, vegetation and permafrost relationships, northern MacKenzie Valley and Yukon [Ottawa] : Information Canada, 1973. 1 online resource (v, 105, [2] pages) : maps, illustrations (chiefly colour). text txt rdacontent computer c rdamedia online resource cr rdacarrier Environmental-Social Committee, Northern Pipelines, Task Force on Northern Oil Development Report ; no. 73-4 Digitized edition from print [produced by Environment and Climate Change Canada]. "May 1973." Includes bibliographical references (pages 45-46). "The rapid development of transportation facilities in the north necessitates a knowledge of special circumstances presented by the occurrence of permafrost. In this report the results of a study undertaken by the Department of the Environment (Canadian Forestry Service) in co-operation with Department of Energy, Mines and Resources (Geological Survey of Canada) supported by the Department of Agriculture(Soil Research Institute) in the northern part of the Mackenzie Valley and northern Yukon are described"--Summary. Plant ecology Northwest Territories Mackenzie River Valley. Plant ecology Yukon. Landforms Northwest Territories Mackenzie River Valley. Landforms Yukon. Frozen ground Northwest Territories Mackenzie River Valley. Frozen ground Yukon. Écologie végétale Yukon. Relief (Géographie) Territoires du Nord-Ouest Mackenzie, Vallée du. Relief (Géographie) Yukon. Sols gelés Territoires du Nord-Ouest Mackenzie, Vallée du. Sols gelés Yukon. Écologie végétale Territoires du Nord-Ouest Mackenzie, Vallée du. Task Force on Northern Oil Development (Canada). Environmental-Social Committee. Environmental-Social Program, Northern Pipelines (Canada) Canada. Indian and Northern Affairs Canada. Report (Task Force on Northern Oil Development (Canada). Environmental-Social Committee) no. 73-4. (CaOODSP)9.883314 PDF 44.36 MB https://publications.gc.ca/collections/collection_2020/rcaanc-cirnac/R73-4-73-4-eng.pdf