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首页> 外文期刊>Journal of environmental monitoring: JEM >Phosphorus fractionation in different trophic sediments of lakes from different regions, China
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Phosphorus fractionation in different trophic sediments of lakes from different regions, China

机译：中国不同地区湖泊不同营养沉积物中的磷分馏

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摘要

The characteristics of organic phosphorus (P_o) fractions in the sediments of nine lakes from the middle and lower reaches of the Yangtze River region, Yungui Plateau, Qinghai-Tibet Plateau, Northeast China Region, and Mongolia-Xinjiang Plateau, China were investigated and the differences of the different lakes on P fractionation was discussed. The results indicated that organic matter (OM) showed significant positive correlations with P_o in sediment samples, and the rank order of the P_o fractions was: residual P_o > HCl-P_o > fulvic acid-P_o > humic acid-P_o > NaHCO_3-P_o with mean relative proportions 7.4: 3.4: 2.4: 1.7: 1.0. The labile and moderately labile P_o were the main fractions in the sediments for shallow eutrophic lakes except for Lake Qilu, however, nonlabile P_o was dominant in the sediments from deep lakes. Labile P_o was significantly correlated with total phosphorus (TP), inorganic phosphorus (P_i), P_o, NaHCO_3-P_i, HCl-P _i and NaOH-P_i, and the nonlabile P_o was significantly and positively related to OM, TP, P_o and NaOH-P _i.
机译：研究了长江中下游地区，云贵高原，青藏高原，东北地区和蒙古-新疆高原这九个湖泊沉积物中的有机磷（P_o）组分特征，并研究了讨论了不同湖泊在磷分级中的差异。结果表明，沉积物样品中有机质（OM）与P_o呈显着正相关，P_o级分的排列顺序为：残留P_o> HCl-P_o>黄腐酸-P_o>腐殖酸-P_o> NaHCO_3-P_o平均相对比例7.4：3.4：2.4：1.7：1.0。不稳定和中等不稳定的P_o是富营养化浅水湖泊沉积物中的主要组分，除了齐鲁湖，但是不稳定的P_o在深水湖泊的沉积物中占主导地位。不稳定P_o与总磷（TP），无机磷（P_i），P_o，NaHCO_3-P_i，HCl-P _i和NaOH-P_i显着相关，非不稳定P_o与OM，TP，P_o和NaOH显着正相关-P _i。

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