| 书目名称 | Large Lakes | | 副标题 | Ecological Structure | | 编辑 | Max M. Tilzer,Colette Serruya | | 视频video | | | 丛书名称 | Brock‘ Springer Series in Contemporary Bioscience | | 图书封面 |  | | 描述 | The vast majority of the world‘s lakes are small in size and short lived in geological terms. Only 253 of the thousands of lakes on this planet have surface areas larger than 500 square kilometers. At first sight, this statistic would seem to indicate that large lakes are relatively unimportant on a global scale; in fact, however, large lakes contain the bulk of the liquid surface freshwater of the earth. Just Lake Baikal and the Laurentian Great Lakes alone contain more than 38% of the world‘s total liquid freshwater. Thus, the large lakes of the world accentuate an important feature of the earth‘s freshwater reserves-its extremely irregular distribution. The energy crisis of the 1970s and 1980s made us aware of the fact that we live on a spaceship with finite, that is, exhaustible resources. On the other hand, the energy crisis led to an overemphasis on all the issues concerning energy supply and all the problems connected with producing new energy. The energy crisis also led us to ignore strong evidence suggesting that water of appropriate quality to be used as a resouce will be used up more quickly than energy will. Although in principle water is a "renewable resource," the wor | | 出版日期 | Book 1990 | | 关键词 | Nahrungsnetz; Ocean; Sediment; Seen; Wellen; ecosystem; wind; Ökosystem | | 版次 | 1 | | doi | https://doi.org/10.1007/978-3-642-84077-7 | | isbn_softcover | 978-3-642-84079-1 | | isbn_ebook | 978-3-642-84077-7Series ISSN 1432-0061 | | issn_series | 1432-0061 | | copyright | Springer-Verlag Berlin Heidelberg 1990 |
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发表于 2025-3-21 17:08:43
