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| 1 | 三峡水库支流回水河段氮磷负荷与干流的逆向影响显示文摘通过分析三峡库区大宁河回水河段氮磷的来源、数量及时空特征,研究三峡水库成库初期和稳定运行期,次级支流回水段受干流的逆向影响.结果表明,成库初期,支流回水段的氮磷分配特征初步呈现干流逆向影响效应,分别有19.05%TN、28.93%TP源于干流倒灌输入;由于干流顶托作用,氮磷呈现具峰值的空间分布特征.在稳定运行期,支流回水段的氮磷来源及数量将明显受干流逆向影响,在其中的藻类适宜生长期,大宁河回水段干流倒灌输入的TN、TP分别高出上游径流输入近3倍、10倍,明显高于成库初期.当运行水位从145m升至175m时,支流回水段纳受干流倒灌输入的TN、TP可分别达15484.99、1185.75t.研究表明,干流逆向影响可能加剧三峡水库水体的富营养化. | 罗专溪 朱波 郑丙辉 张远 | 2007 | 中国环境科学2007，27，2： | 39 |
| 2 | 三峡库区消落带土壤不同含水量条件下芦苇的氮素与生物量动态变化显示文摘通过设置T1(淹水超过土壤表面2cm)、T2(土壤含水量为田间持水量的70%~100%)和T3(土壤含水量为田间持水量的40%~60%)3个不同处理组,模拟了三峡库区消落带土壤含水量变化特征,并以嘉陵江江边芦苇(Phragmitescommunis(reed))为实验材料,研究了三峡库区不同消落带带位土壤不同含水量条件下芦苇地上部分氮含量和生物量的动态变化,同时,探讨了芦苇地上部氮的积累和合适的收割时期.结果表明,三峡库区消落带土壤不同含水量条件下芦苇地上部氮含量随季节变化而变化,在一个生育周期内,芦苇的叶片、叶鞘和茎的氮含量呈典型的单峰曲线.其中,T1、T2和T3的叶片和叶鞘中氮含量的峰值出现在9月底(抽穗期),叶片氮含量的峰值分别为23.1、26.5和26.2mg·g-1,叶鞘氮含量的峰值分别为14.4、12.4和13.2mg·g-1;;而茎氮含量的峰值出现在10月底(穗期),其峰值为9.5、9.1和9.0mg·g-1.与其他地区芦苇的氮吸收相比,在三峡库区消落带3种水分条件下的芦苇对氮都具有很强的吸收能力.不同处理芦苇的生长曲线呈典型的单峰曲线,其中,T1和T2处理地上生物量的最大值均出现在9月底(抽穗期),分别为11.86g·株-1和11.81g·株-1;;而T3的最大值出现在8月底(迅速生长晚期),其值为8.04g·株-1;;T1和T2条件下芦苇地上部氮的积累也在9月底达到最大值,分别为241.9mg·株-1和279.4mg·株-1,而T3在8月底达到最大值,其值为154.5mg·株-1,表明在三峡库区消落带的芦苇具有很强的氮积累能力.研究同时证实,土壤不同含水量条件下芦苇对三峡库区消落带氮的吸收和积累均具有较好的效果,可以根据芦苇的生长规律和地上部分氮积累对芦苇及时收割,以便充分发挥芦苇去除氮的功能.因此,芦苇可作为三峡库区消落带生态环境治理和解决水体富营养化问题的禾本科先锋物种. | 冯大兰 刘芸 黄建国 | 2009 | 环境科学学报2009，29，9： | 14 |
| 3 | 三峡库区长江干流及主要支流氮磷叶绿素变化趋势研究显示文摘大坝建设对水生态环境的影响一直备受关注.长江三峡工程是目前为止世界范围内最大的水电工程,本文以2006~2015年三峡工程建设和试验性蓄水期长江干流及主要支流共计82个断面水质监测数据为基础进行了分析研究.结果表明,三峡库区长江干流水质保持稳定,支流总体水质有所好转.分年度进行SMK统计分析表明,总氮总磷总体呈上升趋势,且总氮呈现上升断面的数量高于总磷.总氮总磷上升的空间分布明显不同.总氮呈显著上升的断面普遍存在库首和库中地区,并有向库尾延伸的趋势,而总磷呈上升趋势断面在各干支流呈散点分布,在库尾重庆、长寿等地呈现显著升高的断面数量明显高于总氮,而在库首秭归和夷陵等地呈现显著上升断面的占比明显低于总氮.回水区总磷浓度总体高于非回水区,而总氮无明显差异.长江干支流氮磷含量呈上升趋势,但叶绿素a含量仅有约20%断面呈显著上升趋势,且空间分布分散.项目研究结果可为三峡大坝对水环境的影响提供参考,为库区水质管理提供借鉴. | 彭福利 何立环 于洋 魏复盛 | 2017 | 中国科学:技术科学2017，47，8： | 12 |
| 4 | 三峡水库干流氮和磷含量的季节变化显示文摘三峡水库成库后对6个水平断面、4个垂直断面采样分析,对水体水质参数、不同化学形态N以及不同物理形态P的水平分布和垂直分布进行了研究。研究结果表明,成库后TP、NH3-N、NO2--N、NO3--N、IN含量范围分别在0.06~0.34、0.01~0.72、0.002~0.100、0.76~2.09、0.855~2.52 mg/L。TP分布为丰水期>平水期>枯水期,受悬浮物沉降的影响,TP在水库区域含量低于上游区。枯水期、平水期水体中TP以可溶解态为主,丰水期以颗粒态为主。NO2--N、NO3--N、IN含量均为平水期>枯水期>丰水期。水体中IN以NO3--N为主,占IN70%~90%。NO2--N比例最低,占IN3.5%以下。表明水体虽受成库影响流速减缓,但水体依然有较强的自净能力。垂直分布上,TP、IN在3个层次变化不显著,未出现分层现象。各采样站点TP、NO3--N、IN通量和流量有显著相关。 | 曾凡海 张晟 熊强 吕平毓 兰峰 | 2012 | 中国环境监测2012，28，5： | 5 |
| 5 | 三峡库区非点源污染研究进展显示文摘从非点源污染调查与评价、污染负荷与模型模拟、影响因素及机理、污染控制与管理等方面分析了三峡库区非点源污染研究的现状。结果表明:①非点源污染物研究以N、P、COD居多,重金属、POPs等研究较少;②污染负荷估算以经验方法或引用外国模型模拟为主;自主开发模型鲜有运用;③非点源污染机理研究集中在降雨、施肥、土地利用等方面对产污的影响,污染来源、产污、迁移途径及转化有待进一步系统研究;④污染防治多以对策建议为主,可操性不强。今后应着力于城镇非点源污染、内源污染、污染物毒性、排污权交易等领域的研究;尝试建立非点源污染数据库,开发自主模型,探索核素示踪法、最佳管理措施等方法的应用,为区域水环境治理提供科学依据。 | 侯伟 廖晓勇 刘晓丽 王海明 | 2013 | 福建林业科技2013，40，4： | 4 |
| 6 | Three-dimensional unstructured-mesh eutrophication model and its application to the Xiangxi River,China显示文摘The Xiangxi River is one of the main tributaries in the Three Gorges reservoir,with the shortest distance to the Three Gorges Project Dam.Severe and frequent algal bloom events have occurred frequently in the Xiangxi River in recent years.Therefore,the current study develops a three-dimensional unstructured-mesh model to investigate the dynamic process of algal bloom.The developed model comprises three modules,namely,hydrodynamics,nutrient cycles,and phytoplankton ecological dynamics.A number of factors,including hydrodynamic condition,nutrient concentration,temperature,and light illumination,that would affect the evolution of phytoplankton were considered.Moreover,the wave equation was used to solve the free surface fluctuations and vertical Z-coordinates with adjustable layered thicknesses.These values,in turn,are suitable for solving the algal bloom problems that occurred in the river style reservoir that has a complex boundary and dramatically changing hydrodynamic conditions.The comparisons between the modeling results and field data of years 2007 and 2008 indicate that the developed model is capable of simulating the algal bloom process in the Xiangxi River with reasonable accuracy.However,hydrodynamic force and external pollution loads affect the concentrations of nutrients,which,along with the underwater light intensity,could consequently affect phytoplankton evolution.Thus,flow velocity cannot be ignored in the analysis of river algal bloom.Based on the modeling results,building an impounding reservoir and increasing the releasing discharge at appropriate times are effective ways for controlling algal bloom. | Jian Li Danxun Li Xingkui Wang | 2012 | Journal of Environmental Sciences2012，24，9： | 4 |
| 7 | 固定化硝化细菌与聚磷菌对南昌市内河流水污染物降解的研究显示文摘针对南昌市主要内河流的污染问题,结合南昌市主要内河流抚河故道和玉带河的水质现状特点,筛选出了优势硝化细菌和聚磷菌,并研究优势菌种对南昌市内河流中氨氮、总磷的固定化降解效果。结果表明:硝化菌XH3对亚硝酸盐氮的降解率最高达到100%,硝化菌YH3对氨氮的降解率为82.75%,聚磷菌JP2对总磷的降解率为58.57%;优势菌株XH3、YH3、JP2按照质量比1∶1∶1的比例进行配比,发现三者配比的混合菌对氨氮、总磷的降解率达85%、22.86%;通过采用PVA+添加剂制备了含优势菌种的固定化载体,利用该载体研究在曝气24 h条件下对南昌内河流中氨氮、总磷的降解效果,研究表明该载体对模拟南昌市内河流中氨氮、总磷的降解效果分别能达到82.70%、79.27%。综合分析得出,该方法为南昌市内河流的整治提供了一个可行的有效途径。 | 周跃龙 胡美丹 汪新强 汪怀建 | 2018 | 水资源与水工程学报2018，29，1： | 3 |
| 8 | Phosphorus release: A biogeochemical insight from a restored lakeside wetland in the Yangtze-Huaihe region, China显示文摘The heavy intensification of agriculture in East China since the 1980s caused the decrease of lake area and water storage capacity with impediment of regulation, lake eutrophication and frequent floods. Many restoration projects have been conducted. However, the knowledge of biogeochemical factors that drive nutrient cycles during the early stage of restoration is still limited. We studied the effect of the remediation of a patch of near-shore shallow wetland on the northern bank of Chaohu Lake in the Yangtze-Huaihe region, China, which was used as rice paddy for many years, on the behavior of phosphorus. Redox potential (ORP), temperature and dissolved oxygen were monitored in situ from May 2006 to November 2007. Samples of soil pore water were collected during this time for the determination of different forms of iron and phosphorus. ORP showed a clear transition of the wetland soil from an oxidized state in winter to a reduced state in summer. The decrease of ORP correlated with the release of large amounts of Fe and P. The maxima of total dissolved Fe and total dissolved P in the summer of the second year were (13.8 ± 6.8) mg/L and (0.88 ± 0.27) mg/L, respectively. It is worth noticing that P concentration far exceeded the critical value of lake eutrophication (0.02 mg/L). The pressure of P release to the adjacent lake during the first two years of wetland restoration from rice fields should be taken into account by environmental policy makers. | Xiaoling Zhou, Baoqing Shan, Hong Zhang State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. | 2010 | Journal of Environmental Sciences2010，22，3： | 2 |
| 9 | Phosphorus Loss from Dry Sloping Lands of Three Gorges Reservoir Area, China显示文摘Eutrophication in the Three Gorges Reservoir has become a serious issue, and phosphorus (P) is the nutrient thought to be primarily responsible although there are few studies about P loss from the mostly sloping farmlands of the area. This work investigated the amounts and forms of P loss from 9 farmlands with the slopes of 4°, 9°, and 17° in a small watershed, Wangjiagou in Fuling District, Chongqing of China. The slope of the relationship between runoff and rainfall increased with field slope; i.e., there was a significant interaction between the effects of rainfall and field slope on water export. For sediment export by surface runoff, there was no interaction between field slope and rainfall, and the intercept of the relationship between rainfall and sediment loss was significantly different for the 3 slopes. The main P loss was from sediments, regardless of slope. In the runoff water, particulate P was the largest P fraction, and its loss was greatest from the steepest land and least from the flattest. The release of total P and available P from sediments followed the same trend. The P loss during May to July in Wangjiagou was more than 60% of the annual total. | HU Zheng-Feng GAO Ming XIE De-Ti WANG Zi-Fang | 2013 | Pedosphere2013，23，3： | 2 |
| 10 | TEMPORAL AND SPATIAL DISTRIBUTION OF PHOSPHORUS IN THE XIANGXI RIVER显示文摘The phosphorus in water and sediment collected at different time from the Xiangxi River were analyzed. The results indicated that the phosphorus pollution have significant relations to human activities (especially the phosphorus industry). The concentrations of total-phosphorus (TP), total dissolved phosphorus (TDP) and dissolved phosphorus (DP) in Dec.2004 were higher than those in Jul. 2005; the TP contents of sites 15 and 16 were much higher than others’, the TP content of the largest site 16 was 1946.29mg/kg in Dec. 2004 and 1756.11mg/kg in Jul. 2005, respectively, which was much higher than the average (1497.51mg/kg and 1369.38mg/kg, respectively). The TP content in the sediment of the Xiangxi River was from 1179.53mg/kg to 1851.20mg/kg. The TP contents of most sites except site 18, 19 and 20 were higher in Dec. 2004 than those in Jul. 2005. The aluminium-phosphorus (Al-P) content in the sediment was obviously higher in Jul. 2005 than that in Dec.2004, which indicated that the stability of Al-P has a significant relation to the change of season. | FU Chang-Ying 1,2, FANG Tao 1, DENG Nan-Sheng 2and YU Hai-Qiao 1,3 (1. Institute of Hydrobiology,the Chinese Academy of Sciences, Wuhan 430072,China 2. School of Environmental Sciences and Resources,Wuhan University, Wuhan 430079 3. School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070) | 2006 | 水生生物学报2006，30，6： | 1 |
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