贵州红枫湖沉积物磷赋存形态的空间变化特征
Spatial distribution characteristics of phosphorus forms in sediment of Lake Hongfeng,Guizhou Province
查看参考文献32篇
|
文摘
|
选取贵州省红枫湖这一典型的亚深水型人工湖泊作为对象,研究了6个代表性湖区沉积物柱芯磷的赋存形态,结合水体温度和溶解氧现场监测结果,探讨了该类型湖泊沉积物内源磷释放风险.研究结果表明,红枫湖沉积物总磷含量普遍较高,表层沉积物总磷含量均值大于1500 mg/kg,明显高于下部沉积物.NaOH-SRP和rest-P是沉积物磷的主要赋存形态.NH_4Cl-P和BD-P含量表层最高,随深度增加明显降低,rest-P含量在垂向上变化不大.人为活动是造成沉积物总磷及赋存形态空间分布差异的主要原因,工业废水和网箱养鱼活动等大大增加了沉积物NaOH-SRP含量.红枫湖深水湖区底部水温多在14.5~23.5℃之间,随季节变化底部水温差异明显,溶解氧含量通常不高于1.5 mg/L,整体处于季节性缺氧或厌氧状态.以NaOH-SRP为主的沉积物磷赋存形态和深水缺氧环境大大增加了红枫湖沉积物内源磷释放的风险,在未来的研究中亟待加强对该类型湖泊沉积物内源磷释放机制、控制因素及治理措施的研究. |
|
其他语种文摘
|
Lake Hongfeng is a man-made deep lake.Phosphorus of sediment samples that were collected from representative six water areas were analyzed.Water temperature and dissolved oxygen were investigated four times in the field by multi-parameter water quality observation analyzer YSI.The results showed that total phosphorus in sediment was generally high.The average value of total phosphorus in surface sediment was more than 1500 mg/kg,significantly higher than that in the bottom sediments.NaOH-SRP and rest-P were the main forms of phosphorus in sediment.NH_4Cl-P,BD-P and HCl-P contents decreased with depth,and rest-P contents were stabile in vertical.Human activities(e.g.chemical waste water and artificial fish) greatly increased NaOH-SRP contents in sediment.Temperature of bottom water was between 14.5-23.5℃,and the maximum temperature differences was 9.9℃ in different seasons.The bottom water was seasonal anoxic or anaerobic,which may result in changes of sediment phosphorus forms.Risk of endogenous phosphorus release increased due to anoxic condition of sediment-water interface in deep lake. |
|
来源
|
湖泊科学
,2012,24(5):789-796 【核心库】
|
|
DOI
|
10.18307/2012.0521
|
|
关键词
|
红枫湖
;
沉积物
;
磷形态
;
温度
;
溶解氧
|
|
地址
|
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, 550002
|
|
语种
|
中文 |
|
ISSN
|
1003-5427 |
|
学科
|
环境科学基础理论 |
|
基金
|
国家自然科学基金项目
;
国家科技支撑计划项目
;
贵阳市科技计划项目联合资助
|
|
文献收藏号
|
CSCD:4649679
|
参考文献 共
32
共2页
|
|
1.
Sondergaard M. Role of sediment and internal loading of phosphorus in shallow lakes.
Hydrobiologia,2003,506(1):135-145
|
CSCD被引
143
次
|
|
|
|
|
2.
范成新. 太湖沉积物-水界面生源要素迁移机制及定量化——2.磷释放的热力学机制及源-汇转换.
湖泊科学,2006,18(3):207-217
|
CSCD被引
101
次
|
|
|
|
|
3.
Marsden M W. Lake restoration by reducing external phosphorus loading: the influence of sediment phosphorus release.
Freshwater Biology,1989,21(2):139-162
|
CSCD被引
13
次
|
|
|
|
|
4.
Van der Molen D T. Influence of internal loading on phosphorus concentration in shallow lakes before and after reduction of the external loading.
Hydrobiologia,1994,275(1):379-389
|
CSCD被引
4
次
|
|
|
|
|
5.
Rockwell D C. The US EPA Lake Erie indicators monitoring program 1983-2002: Trends in phosphorus, silica, and chlorophyll a in the central basin.
Journal of Great Lakes Research,2005,31(2):23-34
|
CSCD被引
2
次
|
|
|
|
|
6.
Burger D. Benthic nutrient fluxes in a eutrophic, polymictic lake.
Hydrobiologia,2007,584(1):13-25
|
CSCD被引
10
次
|
|
|
|
|
7.
Elsbury K E. Using oxygen isotopes of phosphate to trace phosphorus sources and cycling in Lake Erie.
Environmental Science and Technology,2009,43(9):3108-3114
|
CSCD被引
19
次
|
|
|
|
|
8.
Ozkundakci D. Hypolimnetic phosphorus and nitrogen dynamics in a small, eutrophic lake with a seasonally anoxic hypolimnion.
Hydrobiologia,2011,661:5-20
|
CSCD被引
16
次
|
|
|
|
|
9.
Ruttenberg K C. Development of a sequential extraction method for different forms of phosphorus in marine sediments.
Limnology and Oceanography,1992,37:1460-1482
|
CSCD被引
211
次
|
|
|
|
|
10.
瓮焕新. 河流沉积物中磷的结合形态及其环境地球化学意义.
科学通报,1993,38(13):1219-1222
|
CSCD被引
2
次
|
|
|
|
|
11.
Hupfer M. Transformation of phosphorus species in settling seston and during early sediment diagenesis.
Aquatic Sciences,1995,57(4):305-324
|
CSCD被引
62
次
|
|
|
|
|
12.
Kaiserli A. Phosphorus fractionation in lake sediments - Lakes Volvi and Koronia, Greece.
Chemosphere,2002,46:1147-1155
|
CSCD被引
138
次
|
|
|
|
|
13.
朱广伟. 浅水湖泊沉积物中磷的地球化学特征.
水科学进展,2003,14(6):714-719
|
CSCD被引
90
次
|
|
|
|
|
14.
Kim L H. Sediment characteristics, phosphorus types and phosphorus release rates between river and lake sediments.
Chemosphere,2003,50:53-61
|
CSCD被引
121
次
|
|
|
|
|
15.
黄清辉. 中国湖泊水域中磷形态转化及其潜在生态效应研究动态.
湖泊科学,2006,18:199-206
|
CSCD被引
44
次
|
|
|
|
|
16.
朱元荣. 贵州红枫湖沉积物生物可利用磷分布特征及其与粒径的关系.
湖泊科学,2010,22(4):513-520
|
CSCD被引
12
次
|
|
|
|
|
17.
王雨春. 西南峡谷型水库的季节性分层与水质的突发性恶化.
湖泊科学,2005,17(1):54-60
|
CSCD被引
68
次
|
|
|
|
|
18.
万国江. 深水人工湖环境生物地球化学过程研究:以贵州红枫湖一百花湖为例.
地球与环境,2010,38(3):262-270
|
CSCD被引
23
次
|
|
|
|
|
19.
陈敬安. 红枫湖底泥污染物空间分布特征.
第十三届国际湖泊大会论文集,2009
|
CSCD被引
2
次
|
|
|
|
|
20.
李键. 一种可实现不同水深条件下采样的湖泊沉积物柱芯采样装置.
地球与环境,2011,39(1):121-124
|
CSCD被引
14
次
|
|
|
|
|
了解气象卫星更多信息，请访问