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ÖÁ×ðľ³æ (ÖøÃûдÊÖ)
- EEPI: 8
- Ó¦Öú: 135 (¸ßÖÐÉú)
- ¹ó±ö: 1.097
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- ×¢²á: 2012-04-27
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ûʲô´óµÄ´íÎ󣬲»¹ý×¢Òâʱ̬£¬»¹ÓÐÉý¸ß½µµÍÒ»°ã¶¼Óñ»¶¯Óï̬¡£ÏÂÃæÊÇÐÞ¸ÄµÄ The effects of plants on the morphology and content of phosphorus in sediments, which were measured based on chemical continuous extraction method, were investigated in this paper. The results showed that the higher levels of sediment phosphorus were self-generated and debris phosphorus, simultaneously the content of occluded phosphorus, debris phosphorus and self-generated were increased in the sediments with plant growth, indicating that the plants promoted the accumulation of poorly bioavailability phosphorus . Besides, the exchangeable phosphorus and organic phosphorus in the sediments were decreased 58.58% and 60.82% respectively. Ferrum-bounded phosphorus and aluminum bounded phosphorus were reactive phosphorus, which were less affected by plants. In general, the total phosphorus content insediments were decreased 8.10%. |

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