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Titlebook: Land and Land Appraisal; Robert Orr Whyte Book 1976 Dr. W. Junk B. V., Publishers, The Hague 1976 biological.ecosystem.food.nutrition.popu

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樓主: calcification
31#
發(fā)表于 2025-3-27 00:20:13 | 只看該作者
32#
發(fā)表于 2025-3-27 02:29:02 | 只看該作者
Evaluation of Physical and Biological Components,resources themselves. Historically, in many regions of the world soils have been depleted, forests cut down and oceans and lakes have served as sinks for man’s wastes. Why then, has concern over the environmental aspects of natural resource use and management recently reached major national and international proportions?
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發(fā)表于 2025-3-28 10:13:42 | 只看該作者
Assessment of Land Capability,remain some limited areas of primary vegetation, much larger areas of secondary and terminal vegetation, and large areas of land with low population density and light use. It is to these lands that the techniques of the CSIRO Division of Land Research may be said to apply more particularly.
40#
發(fā)表于 2025-3-28 10:40:06 | 只看該作者
Some Surveys, Completed or Planned,ich were based on field surveys. It is not claimed that the list is by any means complete; other surveys are being conducted by international agencies, bilateral aid organizations and research foundations, but details were not available at time of going to press.
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