偏离
发表于 2025-3-30 12:02:02
Robert G. Wetzel,Gene E. Likensous it has been recurrent, ambulatory and somehow irrepressible: no sooner does it wane in one locality than it springs up in another. After playing a major role in Germany during his lifetime, Husserl had been filed away in the history-books of that country when he was discovered by the French duri
BLINK
发表于 2025-3-30 15:07:52
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CLIFF
发表于 2025-3-30 16:53:27
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两栖动物
发表于 2025-3-30 21:14:47
Light and Temperature,abolism of lakes and streams is derived from solar energy, which is converted biochemically via photosynthesis to potential chemical energy. The photosynthetic synthesis of organic matter occurs within the lake or river (autochthonous) or within the terrestrial drainage basin (allochthonous) and is
整洁漂亮
发表于 2025-3-31 02:44:38
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mechanism
发表于 2025-3-31 05:22:27
The Heat Budget of Lakes,ce in limnology. The metabolism, physiology, and behavior of aquatic organisms are related directly to the temperature of the aquatic environment. Extreme temperatures restrict the growth and distribution of plants, animals, and microbes. Because of the high specific heat of water, large volumes of
CYN
发表于 2025-3-31 13:13:13
Inorganic Nutrients: Nitrogen, Phosphorus, and Other Nutrients,e less than the biological demand, environmental sources can regulate or limit the productivity of organisms in freshwater ecosystems. Other elements such as iron and sulfur are essential cellular constituents but are required in relatively low concentrations in relation to availability in fresh wa