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鄱阳湖非平稳水位波动及其与长江的交互作用关系
作者: 戴雪 万荣荣 杨桂山  来源:地理学报(英文版) 年份:2015 文献类型 :期刊 关键词: Yangtze  earlier  seasonal  intensified  downstream  lacustrine  river  representative  flood  dominate 
描述:Seasonal water-level fluctuations(WLF) play a dominate role in lacustrine ecosystems. River-lake interaction is a direct factor in changes of seasonal lake WLF, especially for those lakes naturally connected to upstream and downstream rivers. During the past decade, the modification of WLF in the Poyang Lake(the largest freshwater lake in China) has caused intensified flood and irrigation crises, reduced water availability, compromised water quality and extensive degradation of the lake ecosystem. There has been a conjecture as to whether the modification was caused by its interactions with Yangtze River. In this study, we investigated the variations of seasonal WLF in China’s Poyang Lake by comparing the water levels during the four distinct seasons(the dry season, the rising season, the flood season, and the retreating season) before and after 2003 when the Three Gorge Dam operated. The Water Surface Slope(WSS) was used as a representative parameter to measure the changes in river-lake interaction and its impacts on seasonal WLF. The results showed that the magnitude of seasonal WLF has changed considerably since 2003; the seasonal WLF of the Poyang Lake have been significantly altered by the fact that the water levels both rise and retreat earlier in the season and lowered water levels in general. The fluctuations of river-lake interactions, in particular the changes during the retreating season, are mainly responsible for these variations in magnitude of seasonal WLF. This study demonstrates that WSS is a representative parameter to denote river-lake interactions, and the results indicate that more emphasis should be placed on the decrease of the Poyang Lake caused by the lowered water levels of the Yangtze River, especially in the retreating season.
全文:Seasonal water-level fluctuations(WLF) play a dominate role in lacustrine ecosystems. River-lake interaction is a direct factor in changes of seasonal lake WLF, especially for those lakes naturally connected to upstream and downstream rivers. During the past decade, the modification of WLF in the Poyang Lake(the largest freshwater lake in China) has caused intensified flood and irrigation crises, reduced water availability, compromised water quality and extensive degradation of the lake ecosystem. There has been a conjecture as to whether the modification was caused by its interactions with Yangtze River. In this study, we investigated the variations of seasonal WLF in China’s Poyang Lake by comparing the water levels during the four distinct seasons(the dry season, the rising season, the flood season, and the retreating season) before and after 2003 when the Three Gorge Dam operated. The Water Surface Slope(WSS) was used as a representative parameter to measure the changes in river-lake interaction and its impacts on seasonal WLF. The results showed that the magnitude of seasonal WLF has changed considerably since 2003; the seasonal WLF of the Poyang Lake have been significantly altered by the fact that the water levels both rise and retreat earlier in the season and lowered water levels in general. The fluctuations of river-lake interactions, in particular the changes during the retreating season, are mainly responsible for these variations in magnitude of seasonal WLF. This study demonstrates that WSS is a representative parameter to denote river-lake interactions, and the results indicate that more emphasis should be placed on the decrease of the Poyang Lake caused by the lowered water levels of the Yangtze River, especially in the retreating season.
鄱阳湖增减水及其计算
作者: 闵骞 喻安远  来源:水文水资源 年份:2000 文献类型 :期刊 关键词: 增减水  风成流  鄱阳湖  计算 
描述:鄱阳湖湖面宽阔,在大风作用下,经常出现增减水现象,本文对其基本特征和规律作概略分析。鄱阳湖的增减水具有增水水位于大减水水位的特点,而目前常用的增减水计算公式是建立在增水水位与减水水位相等的假设基本上,用以是湖增减水计算,造成增水水位计算值偏小,减水水位计算值偏大之系统性误差。
全文:鄱阳湖湖面宽阔,在大风作用下,经常出现增减水现象,本文对其基本特征和规律作概略分析。鄱阳湖的增减水具有增水水位于大减水水位的特点,而目前常用的增减水计算公式是建立在增水水位与减水水位相等的假设基本上,用以是湖增减水计算,造成增水水位计算值偏小,减水水位计算值偏大之系统性误差。
鄱阳湖退田还湖及其对洪水的影响
作者: 闵骞  来源:湖泊科学 年份:2004 文献类型 :期刊 关键词: 退田还湖  洪水  鄱阳湖 
描述:在详细分析鄱阳湖退田还湖现状基础上,建立了鄱阳湖退田还湖洪水位效应计算模型,估计退田还湖对典型年洪水位的效应.并对退田还湖对年最高水位频率的影响进行了预测.最后,探讨了退田还湖圩区适宜管理模式和退田还湖对湖泊环境的影响.
全文:在详细分析鄱阳湖退田还湖现状基础上,建立了鄱阳湖退田还湖洪水位效应计算模型,估计退田还湖对典型年洪水位的效应.并对退田还湖对年最高水位频率的影响进行了预测.最后,探讨了退田还湖圩区适宜管理模式和退田还湖对湖泊环境的影响.
蚌湖与鄱阳湖水量交换关系的分析
作者: 姜加虎 黄群  来源:湖泊科学 年份:1996 文献类型 :期刊 关键词: 水量交换  鄱阳湖  蚌湖  三峡工程 
描述:根据蚌湖和鄱阳湖修水站的水位同步观测资料,结合湖区地形,分析蚌湖与鄱阳湖的水量交换关系,并利用三峡工程对鄱阳湖修水、星子、都昌站水位影响的预测结果,讨论三峡工程对蚌湖水情的影响。结果表明:(1)丰水
全文:根据蚌湖和鄱阳湖修水站的水位同步观测资料,结合湖区地形,分析蚌湖与鄱阳湖的水量交换关系,并利用三峡工程对鄱阳湖修水、星子、都昌站水位影响的预测结果,讨论三峡工程对蚌湖水情的影响。结果表明:(1)丰水
长江九江段、鄱阳湖枯水期取水安全保障与思考
作者: 吕兰军  来源:水资源研究 年份:2014 文献类型 :期刊 关键词: 长江九江段  鄱阳湖  影响  思考  枯水水位 
描述:进入21世纪以来,长江九江段、鄱阳湖枯水水位出现时间较往年有所提前,且枯水水位偏低,对沿岸取水造成很大的影响。分析了枯水水位偏低形成的原因并提出了应采取的措施。
全文:进入21世纪以来,长江九江段、鄱阳湖枯水水位出现时间较往年有所提前,且枯水水位偏低,对沿岸取水造成很大的影响。分析了枯水水位偏低形成的原因并提出了应采取的措施。
鄱阳湖淹没范围、水深和库容的遥感研究
作者: 齐述华 龚俊 舒晓波 陈良富  来源:人民长江 年份:2010 文献类型 :期刊 关键词: 水深  分析  鄱阳湖  遥感  淹没范围  库容 
描述:,叠加鄱阳湖区地形图,获取水体边界的水位,通过空间内插计算鄱阳湖水位空间分布,进一步计算水深空间分布和库容量,在此基础上,根据鄱阳湖都昌水文站观测水位,计算鄱阳湖水位-面积曲线和水位-库容曲线
全文:,叠加鄱阳湖区地形图,获取水体边界的水位,通过空间内插计算鄱阳湖水位空间分布,进一步计算水深空间分布和库容量,在此基础上,根据鄱阳湖都昌水文站观测水位,计算鄱阳湖水位-面积曲线和水位-库容曲线
鄱阳湖围垦对洪水影响的分析
作者: 闵骞  来源:江西水利科技 年份:1998 文献类型 :期刊 关键词: 围垦效应  退垦效益  再围垦效应  鄱阳湖  围垦 
描述:利用典型年交叉调洪计算方法,确定鄱阳湖围垦的洪水位效应值;分析洪水位的围垦效应,退垦效益、再围垦效应与围、退垦面积的关系,探讨围垦对鄱阳湖洪水位的影响程度和适宜退垦还湖面积.
全文:利用典型年交叉调洪计算方法,确定鄱阳湖围垦的洪水位效应值;分析洪水位的围垦效应,退垦效益、再围垦效应与围、退垦面积的关系,探讨围垦对鄱阳湖洪水位的影响程度和适宜退垦还湖面积.
气相色谱法测定鄱阳湖湿地灰化苔草中有机氯农药
作者: 杨平华 曾祥晖  来源:理化检验(化学分册) 年份:2015 文献类型 :期刊 关键词: 气相色谱法  有机氯农药  灰化苔草 
描述:柱上分离,采用电子捕获检测器检测。8种有机氯农药的质量浓度在2.00~100.0μg·L-1范围内与峰面积呈线性关系,检出(3S/N)在0.6~1.3μg·L-1之间。对灰化苔草样品进行加标回收试验,回收率在80.4%~114%之间,测定值的相对标准偏差(n=6)在1.1%~5.9%之间。
全文:柱上分离,采用电子捕获检测器检测。8种有机氯农药的质量浓度在2.00~100.0μg·L-1范围内与峰面积呈线性关系,检出(3S/N)在0.6~1.3μg·L-1之间。对灰化苔草样品进行加标回收试验,回收率在80.4%~114%之间,测定值的相对标准偏差(n=6)在1.1%~5.9%之间。
“鄱阳湖1号”杂交鳅精深加工路径分析
作者: 吴斌 王海华 刘其寿  来源:渔业致富指南 年份:2016 文献类型 :期刊 关键词: 养殖技术  种质资源  休闲渔业  鄱阳湖区  小龙虾  路径分析  养殖周期  渔业经济  水产科学  水产养殖 
描述:养殖性能较好的泥鳅品种有台湾泥鳅、日本泥鳅、濮阳泥鳅等,但迄今未有经国家正式审定的良种。江西省水产科学研究所与东乡县恒佳水产养殖有公司产学研合作,利用鄱阳湖区丰富的泥鳅种质资源优势,初步筛选
全文:养殖性能较好的泥鳅品种有台湾泥鳅、日本泥鳅、濮阳泥鳅等,但迄今未有经国家正式审定的良种。江西省水产科学研究所与东乡县恒佳水产养殖有公司产学研合作,利用鄱阳湖区丰富的泥鳅种质资源优势,初步筛选
“鄱阳湖1号”杂交鳅高效养殖推广
作者: 王海华 李燕华  来源:江西农业 年份:2015 文献类型 :期刊 关键词: 养殖技术  高效养殖  体色  鄱阳湖区  综合养殖  号料  池塘养殖  抗逆性  水产科学  水产养殖 
描述:"鄱阳湖1号"杂交鳅是由江西省东乡县恒佳水产养殖有公司与江西省水产科学研究所等单位联合选育的一个泥鳅新品系,具有生长快、抗逆性强、不钻泥、综合养殖性能好的特点,适应在与江西省生态、气候类似的长江中下游地区养殖。"鄱阳湖1号"杂交鳅是通过将鄱阳湖区大鳞副泥鳅亲本与台湾泥鳅杂交选
全文:"鄱阳湖1号"杂交鳅是由江西省东乡县恒佳水产养殖有公司与江西省水产科学研究所等单位联合选育的一个泥鳅新品系,具有生长快、抗逆性强、不钻泥、综合养殖性能好的特点,适应在与江西省生态、气候类似的长江中下游地区养殖。"鄱阳湖1号"杂交鳅是通过将鄱阳湖区大鳞副泥鳅亲本与台湾泥鳅杂交选
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