阿哈水库沉积物-水界面磷、 铁、 硫高分辨率空间分布特征
High-resolution Distribution Characteristics of Phosphorous, Iron and Sulfur Across the Sediment-Water Interface of Aha Reservoir
查看参考文献47篇
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文摘
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选取贵州典型高原亚深水型湖库阿哈水库为研究对象,利用薄膜扩散梯度技术获取夏季分层期不同湖区沉积物-水界面磷、 铁、 硫的原位、 二维高分辨分布信息,并结合水化学及沉积物磷形态分析,探讨了沉积物P-Fe-S分布规律及控制因素. 结果表明:沉积物-水界面DGT-P的浓度变化范围0.00~0.43 mg·L~(-1),DGT-Fe的浓度变化范围0.00~2.83 mg·L~(-1),DGT-S的浓度变化范围0.00~0.10 mg·L~(-1). 阿哈水库沉积物孔隙水磷、 铁、 硫浓度在垂向分布上没有显著的相关性,DGT-P、 DGT-Fe甚至还呈反向变化,这与很多湖泊的研究结果存在明显差异,其原因可能是阿哈水库沉积物具有很高的Fe/P和Fe/S比值,过剩的Fe导致还原态S以FeS/FeS_2形式沉淀后,P仍然被Fe(Ⅲ)固定在沉积物中. 阿哈水库沉积物磷形态以NaOH-SRP和BD-P为主,NaOH-SRP含量变化范围为192~604 mg·kg~(-1),平均值约为392 mg·kg~(-1),BD-P含量变化范围为143~524 mg·kg~(-1),平均值约为225 mg·kg~(-1). 阿哈水库底层水体长期处于厌氧环境,Fe、 S地球化学循环对沉积物内源磷释放起着重要控制作用. |
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其他语种文摘
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In situ two-dimension, high-resolution distribution of phosphorus(P), iron(Fe), sulfur(S) from the sediment-water interface was investigated in different areas of Aha Reservoir, a typical sub-deep water lake, using diffusive gradients in thin films(DGT) technique, combining with water chemistry and sedimentary phosphorus speciation analysis, aimed to discuss the distribution and control factors of P-Fe-S in sediments. DGT-P ranged from 0.00 mg·L~(-1)to 0.43 mg·L~(-1). DGT-Fe rangd from 0.00 mg·L~(-1)to 2.83 mg·L~(-1). DGT-S ranged from 0.00 mg·L~(-1)to 0.10 mg·L~(-1). There was no significant correlation among the concentrations of P, Fe, S in the sediment pore water of Aha Reservoir, which is markedly different from the results of previous studies. We hypothesize that the high ratios of Fe/P and Fe/S induced the direct reaction of surplus Fe(Ⅲ) with S~(2-), yielding FeS and/or FeS_2, while P was firmly fixed in sediments by Fe(Ⅲ). NaOH-SRP(ranging between 192 and 604 mg·kg~(-1)) and BD-P(ranging between 143 and 524 mg·kg~(-1)) were the two major fractions of P in sediments. Since the environment for the bottom layer of water in Aha Reservoir is anoxic, the geochemical cycle of Fe and S potentially has a massive impact on the activation and migration of sedimentary P. |
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来源
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环境科学
,2017,38(7):2810-2818 【核心库】
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DOI
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10.13227/j.hjkx.201611159
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关键词
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阿哈水库
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沉积物-水界面
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薄膜扩散梯度技术
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磷
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硫
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铁
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地址
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1.
中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550081
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贵州师范大学地理与环境科学学院, 贵阳, 550025
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0250-3301 |
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学科
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环境污染及其防治 |
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基金
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国家自然科学基金项目
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贵州省应用基础研究计划重大项目
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贵州省项目
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贵州省项目
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文献收藏号
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CSCD:6021260
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参考文献 共
47
共3页
|
|
1.
Schindler D W. Evolution of Phosphorus Limitation in Lakes.
Science,1977,195(4275):260-262
|
CSCD被引
124
次
|
|
|
|
|
2.
王敬富.
红枫湖沉积物内源磷释放过程机制与通量研究-基于薄膜扩散梯度(DGT)技术,2015:6-7
|
CSCD被引
1
次
|
|
|
|
|
3.
Conley D J. Controlling eutrophication: nitrogen and phosphorus.
Science,2009,323(5917):1014-1015
|
CSCD被引
365
次
|
|
|
|
|
4.
Genkai-Kato M. Eutrophication due to phosphorus recycling in relation to lake morphometry, temperature, and macrophytes.
Ecology,2005,86(1):210-219
|
CSCD被引
11
次
|
|
|
|
|
5.
Nausch M. Phosphorus input by upwelling in the eastern Gotland Basin(Baltic Sea) in summer and its effects on filamentous cyanobacteria.
Estuarine, Coastal and Shelf Science,2009,83(4):434-442
|
CSCD被引
4
次
|
|
|
|
|
6.
Vopel K. Modification of sediment-water solute exchange by sediment-capping materials: effects on O_2 and pH.
Marine and Freshwater Research,2008,59(12):1101-1110
|
CSCD被引
13
次
|
|
|
|
|
7.
Rozan T F. Iron-sulfur-phosphorus cycling in the sediments of a shallow coastal bay: implications for sediment nutrient release and benthic macroalgal blooms.
Limnology and Oceanography,2002,47(5):1346-1354
|
CSCD被引
48
次
|
|
|
|
|
8.
尹洪斌. 太湖北部沉积物中铁硫的地球化学特征研究.
地球化学,2008,37(6):595-601
|
CSCD被引
11
次
|
|
|
|
|
9.
柴蓓蓓.
水源水库沉积物多相界面污染物迁移转化与污染控制研究,2012:25-26
|
CSCD被引
1
次
|
|
|
|
|
10.
刘国锋. 藻源性黑水团环境效应Ⅲ:对水-沉积物界面处Fe-S-P循环的影响.
中国环境科学,2014,34(12):3199-3206
|
CSCD被引
14
次
|
|
|
|
|
11.
Davlson W. In situ speciation measurements of trace components in natural waters using thin-film gels.
Nature,1994,367(6463):546-548
|
CSCD被引
11
次
|
|
|
|
|
12.
Ding S M. Development of the DET technique for high-resolution determination of soluble reactive phosphate profiles in sediment pore waters.
International Journal of Environmental Analytical Chemistry,2010,90(14/15):1130-1138
|
CSCD被引
13
次
|
|
|
|
|
13.
罗婧.
基于薄膜扩散梯度技术(DGT)对湖泊沉积物磷释放机制的原位高分辨率研究,2015:14-19
|
CSCD被引
1
次
|
|
|
|
|
14.
Zhang C S. Bioavailability assessment of phosphorus and metals in soils and sediments: a review of diffusive gradients in thin films(DGT).
Environmental Monitoring and Assessment,2014,186(11):7367-7378
|
CSCD被引
7
次
|
|
|
|
|
15.
Ding S M. Measurement of dissolved reactive phosphorus using the diffusive gradients in thin films technique with a high-capacity binding phase.
Environmental Science & Technology,2010,44(21):8169-8174
|
CSCD被引
21
次
|
|
|
|
|
16.
Ding S M. Gel-based coloration technique for the submillimeter-scale imaging of labile phosphorus in sediments and soils with diffusive gradients in thin films.
Environment Science & Technology,2013,47(14):7821-7829
|
CSCD被引
12
次
|
|
|
|
|
17.
Xu D. Diffusive gradients in thin films technique equipped with a mixed binding gel for simultaneous measurements of dissolved reactive phosphorus and dissolved iron.
Environmental Science & Technology,2013,47(18):10477-10484
|
CSCD被引
26
次
|
|
|
|
|
18.
Ding S M. High-resolution simultaneous measurements of dissolved reactive phosphorus and dissolved sulfide: The first observation of their simultaneous release in sediments.
Environment Science & Technology,2012,46(15):8297-8304
|
CSCD被引
18
次
|
|
|
|
|
19.
陈佑德. 贵阳阿哈水库及流域水污染现状原因和综合治理分析.
贵州师范大学学报(自然科学版),2001,19(3):11-14
|
CSCD被引
2
次
|
|
|
|
|
20.
万曦. 阿哈湖沉积物-水界面Fe-Mn循环的微生物影响分析.
矿物岩石地球化学通讯,1994,13(3):140-141
|
CSCD被引
1
次
|
|
|
|
|
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