图 书 馆
富营养化Eutrophication |
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| 课程网址: | https://www.open.edu/openlearn/nature-environment/environmental-s... |
| 主讲教师: | 信息不详。欢迎您在右侧留言补充。 |
| 开课单位: | 英国开放大学 |
| 开课时间: | 2012-08-09 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Eutrophication describes the biological effects of an increase in the concentration of nutrients. The collective term 'nutrients' refers to those elements that are essential for primary production by plants or other photosynthetic organisms. Eutrophication is most often caused by increases in the availability of nitrogen and phosphorus, commonly present in soil and water in the form of nitrate and phosphate, respectively. However, altered concentrations of any plant nutrient may have a recognizable biological effect. Eutrophication can occur in any aquatic system (freshwater or marine), and the term is also used to describe the process whereby terrestrial vegetation is affected by nutrient-enriched soil water. This OpenLearn course provides a sample of level 2 study in Environment & Development |
| 关 键 词: | 富营养化; 光合生物; 营养素浓度; 水生系统 |
| 课程来源: | 英国开放大学 |
| 数据采集: | 2022-04-09：tongdan |
| 最后编审: | 2022-04-09：tongdan |
| 阅读次数: | 34 |