Phosphorus speciation of sediments from lakes of different tropic status in Eastern China
Phosphorus speciation of sediments from lakes of different tropic status in Eastern China
复制标题
中国东部不同热带湖泊沉积物磷形态
DOI：
10.1007/s11356-015-5521-4
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发表时间：
2016-04
影响因子：
5.8
通讯作者：
Shan Baoqing
中科院分区：
文献类型：
--
作者：
Zhang Wenqiang;Rong Nan;Jin Xin;Li Jie;Ding Yuekui;Zhu Xiaolei;Shan Baoqing
有关沉积物中磷 (P) 化学成分的信息对于了解湖泊生态系统中磷的动态和富营养化至关重要。 P污染造成的富营养化仍然持续存在，因此我们选择测定10个不同营养状态湖泊沉积物的P特征以及P组分与环境因子之间的关系。结果表明，标准、测量和测试（SMT）方法结合31P-核磁共振（31P-NMR）可以有效地显示沉积物的P特征。随着湖泊营养状况的改善，沉积物中的磷浓度下降。无机磷 (Pi) 是大多数湖泊沉积物中总磷 (TP) 的主要形式，主要由 HCl-Pi（一种稳定的 Pi 组分）组成。 31 P-NMR 分析结果表明，提取物主要由邻位磷 (36.4–94.8%) 和单磷 (4.0–36.2%) 组成，还有少量的二酯磷 (0.6–23.1%)、焦磷 (0.2–4.4%) 和磷磷 (0.3–0.7%)。湖泊磷组成与营养状况关系的分析表明，磷形态的生物有效性对地表水营养状况和水生生态系统的健康有影响。
Information about the chemical composition of phosphorus (P) in sediment is critical for understanding P dynamics and eutrophication in lake ecosystems. Eutrophication as a result of P pollution still persists so we chose to determine the P characteristics of sediments from ten lakes of different trophic status and the relationships between P fractions and environmental factors. The results show that the Standards, Measurements and Testing (SMT) method combined with31P-nuclear magnetic resonance (31P-NMR) can efficiently show the P characteristics of sediment. Phosphorus concentrations in sediments decreased as the trophic status of the lake improved. Inorganic P (Pi) was the dominant form of total P (TP) in most of the lake sediments and was mainly comprised of HCl-Pi, a stable Pi fraction. Results of31P-NMR analysis show that the extracts were dominated by ortho-P (36.4–94.8 %) and mono-P (4.0–36.2 %), with smaller amounts of diester-P (.6–23.1 %), pyro-P (.2–4.4 %), and phon-P (.3–.7 %). Analysis of the relationships between the P composition and the trophic status of the lakes indicated that the bioavailability of P forms has an influence on the surface water trophic conditions and the health of aquatic ecosystems.
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影响因子：
12.8
作者：
Read, Emily K.;Ivancic, Monika;McMahon, Katherine D.
通讯作者：
McMahon, Katherine D.
影响因子：
6.1
作者：
Benjamin L Turner;B. Cade‐Menun;L. Condron;S. Newman
通讯作者：
Benjamin L Turner;B. Cade‐Menun;L. Condron;S. Newman
中国太湖大型浅水富营养化湖泊表层沉积物中的有机磷形态
影响因子：
8.9
作者：
Bai, Xiuling;Ding, Shiming;Zhang, Lu
通讯作者：
Zhang, Lu
DOI：
10.1007/s002160100753
发表时间：
2001-06-01
期刊：
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY
影响因子：
--
作者：
Ruban, V;López-Sánchez, JF;Quevauviller, P
通讯作者：
Quevauviller, P
影响因子：
3
作者：
Benjamin L Turner;N. Mahieu;L. Condron
通讯作者：
Benjamin L Turner;N. Mahieu;L. Condron