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  • . The annual recruitment of mature individuals in the population varies greatly from year to year, in conjunction with the yearly variation in rainfall, and 3. that the life-expectancy of this toad can reach six years. Such an heterogeneous age-structure can
  • 1984
  • Character and rate of denudation at platformian plains are discussed. Geological and geomorphological methods are used to estimate the annual denudation rate which varied from 0,001 to 0,01 mm during Middle Miocene Quaternary. The erosion rate
  • 1984
  • A spatially varying parameter model of AFDC participation: empirical analysis using the expansion method
  • 1984
  • Sediment yield models vary considerably to accomodate the wide range of water resources problems where sediment yield estimates are needed : erosion control planning, water resources planning and design, water quality modelling. The simplest models
  • 1984
  • The regionally varying quality of relief is also manifest in differential rent in investments. Several methods for the qualitative evaluation of relief (regarding morphographic dissection, for agricultural land use, from the viewpoints
  • 1984
  • Volcanoes of the Tristan Group have varied physiography resulting from the interplay of repeated volcanic eruptions, coastal erosion and fluvial erosion. The geomorphic histories of the islands are more complicated than was described in earlier
  • 1984
  • About 61.5 % of the area in the region where agriculture and animal grazing are interspersed suffers from varying degrees of desertification. It has increased by 3.4 million hectare in the last 30 years. Overcultivation, overgrazing and firewood
  • 1984
  • in the Canadian portion than in the American portion of the valley. State and provincial governments have promoted, with varying degree of success, an integrated approach to local water management.
  • 1984
  • by European examples. Multi-centre models are more appropriate to the Chinese situation, still their applicability must vary according to the 3-fold division of China's macro regions grading from the Eastern high development region through an intermediate
  • 1984
  • There are no essential differences observed in the production structures of large-farms of varying standards. The grouping of farms by physico-geographical regions shows the absence of adjustment to the ecological endowments. (DLO).
  • 1984
  • Results are presented of detailed slope and soil depth surveys from 13 plots on tropical karst outcrops in the Malay peninsula. The meso-topography and degree of surface cover vary widely, with differences in terrain type (rocky hilltop, hilltop
  • 1984
  • and new establishments. The second one discusses the integration of one particular process, the body assembly, against varying technologies and contracts of cooperation between the two companies involved.
  • 1984
  • mortalité et de mobilité de varier avec l'âge. Application au modèle bi-régional Vancouver et reste du Canada, données de 1971-1976.
  • 1984
  • important que sur les pentes de glace couvertes de débris. Il varie en relation avec la forme des sections et les conditions climatiques. L'évolution des versants est supposée être fonction de la pente et de la profondeur des lacs situés à leur pied.
  • 1984
  • L'article étudie la diffusion, à travers les Etats-Unis, d'innovations technologiques dans le secteur de l'industrie mécanique, au moyen d'enquêtes portant sur 600 établissements industriels. L'adoption des innovations varie selon les secteurs, les
  • 1984
  • than 80 % of its modern values over parts of Wisconsin and Minnesota. After 6000 yr BP precipitation generally increased, while mean July temperature decreased in the north, and increased in the south. The time of the maximum temperature varies within
  • 1984
  • Theories dealing with the role of the state in cities vary considerably in emphasis, from traditional political matters to neo-Marxist and neo-Weberian theories accenting a broader political-economic context in analyzing the role of government
  • 1984
  • the problem of whether the beach-rock is associated with Holocene fossil beaches. The result of the review varies according to sites. The second series intends to insist upon the value of beach-rock in the study of the variation of sandy beach outlines
  • 1984
  • Dérivé de sédiments de la fin du Crétacé et du Tertiaire, le profil général de ces sols à Sarawak consiste en un sommet jaune-brun friable, puis en profondeur en un sol rougeâtre, plus massif et plus compact| la texture varie selon les teneurs en
  • 1984