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三峡水库调节典型时段对鄱阳湖湿地水情特征的影响
作者: 汪迎春 赖锡军 姜加虎 黄群  来源:湖泊科学 年份:2011 文献类型 :期刊 关键词: 水位  三峡水库  鄱阳湖  洲滩湿地  水动力学模型 
描述:三峡工程建成运行将改变下游的水文过程,影响通江湖泊湿地生态系统.本文选取水文情势变化大且可能对植被生长产生较大影响的汛末蓄水和汛前腾空两个时段,运用长江中游江湖耦合水动力模型计算了三峡水库不同
全文:三峡工程建成运行将改变下游的水文过程,影响通江湖泊湿地生态系统.本文选取水文情势变化大且可能对植被生长产生较大影响的汛末蓄水和汛前腾空两个时段,运用长江中游江湖耦合水动力模型计算了三峡水库不同
鄱阳湖湖泊水位与面积的关系评估
作者: 周洋 张增信 王言鑫  来源:科技通报 年份:2015 文献类型 :期刊 关键词: 水位  鄱阳湖  模型  面积 
描述:研究结果进行评估。因此要评估不同站点水位关系及模拟面积的差值,结果发现:(1)星子、都昌和湖口3站的水位具有很高相关性,由拟合公式知,枯水、平水及洪水期时,星子水位平均每上升1 m,都昌站在三个时期平均上升
全文:研究结果进行评估。因此要评估不同站点水位关系及模拟面积的差值,结果发现:(1)星子、都昌和湖口3站的水位具有很高相关性,由拟合公式知,枯水、平水及洪水期时,星子水位平均每上升1 m,都昌站在三个时期平均上升
模糊数学在鄱阳湖年最高水位长期预报中的应用
作者: 闵骞 汪泽培  来源:水文 年份:1992 文献类型 :期刊 关键词: 模糊数学  水位  鄱阳湖  长期预报 
描述:一、引言利用前期水文气象因子作年最高水位的等级预报,是长期水文预报中一种常用的方法,它的依据是:如果首先划定年最高水位的等
全文:一、引言利用前期水文气象因子作年最高水位的等级预报,是长期水文预报中一种常用的方法,它的依据是:如果首先划定年最高水位的等
鄱阳湖蛇山自动监测站与棠荫水文站水位关系模型探讨
作者: 欧阳千林 郭玉银  来源:水资源研究 年份:2014 文献类型 :期刊 关键词: 水位  鄱阳湖  模型 
描述:基于2012年蛇山自动监测站和棠荫水文站水位同步观测资料,建立几种水位关系模型,并分析比较各模型优缺点。结果表明:落差参数模型精度最高,若考虑模型简易实用时,直接相关模型最为合适。
全文:基于2012年蛇山自动监测站和棠荫水文站水位同步观测资料,建立几种水位关系模型,并分析比较各模型优缺点。结果表明:落差参数模型精度最高,若考虑模型简易实用时,直接相关模型最为合适。
近50年鄱阳湖水位变化特征研究
作者: 欧阳千林 刘卫林  来源:长江流域资源与环境 年份:2014 文献类型 :期刊 关键词: Mann  水位  Kendall法  鄱阳湖  最大熵谱 
描述:基于鄱阳湖棠荫水文站近50a(1962~2012年)水位资料,采用Mann-Kendall法和最大熵谱法分析鄱阳湖湖区水位的演变趋势和周期性。研究表明:(1)年平均水位、年最高水位没有显著变化趋势
全文:基于鄱阳湖棠荫水文站近50a(1962~2012年)水位资料,采用Mann-Kendall法和最大熵谱法分析鄱阳湖湖区水位的演变趋势和周期性。研究表明:(1)年平均水位、年最高水位没有显著变化趋势
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.
鄱阳湖低枯水位变化及趋势性分析研究
作者: 喻中文 胡魁德  来源:江西水利科技 年份:2014 文献类型 :期刊 关键词: 变化  水位  趋势  鄱阳湖  研究 
描述:选取鄱阳湖水位代表站历年来的水位观测资料,分析湖区水位代表站低枯水位变化情况,采用Mann-Kendall非参数检验(M-K检验)、Kendall秩次相关检验(Kendall检验)、Spearman
全文:选取鄱阳湖水位代表站历年来的水位观测资料,分析湖区水位代表站低枯水位变化情况,采用Mann-Kendall非参数检验(M-K检验)、Kendall秩次相关检验(Kendall检验)、Spearman
鄱阳湖水质时空变化及受水位影响的定量分析
作者: 刘发根 李梅 郭玉银  来源:水文 年份:2014 文献类型 :期刊 关键词: 水位  鄱阳湖  水质  时空变化 
描述:基于2008~2012年水质水位数据,分析水位变化下的鄱阳湖水质时空变化特征,并定量研究水位变动对水质的影响。结果表明:(1)鄱阳湖水质自2007年起呈恶化趋势,主要在水位涨落下湿地植被生物净化
全文:基于2008~2012年水质水位数据,分析水位变化下的鄱阳湖水质时空变化特征,并定量研究水位变动对水质的影响。结果表明:(1)鄱阳湖水质自2007年起呈恶化趋势,主要在水位涨落下湿地植被生物净化
梅西湖与鄱阳湖水位变化关系及其水量交换过程分析
作者: 冯文娟 徐力刚 范宏翔 李新艳 董磊  来源:陕西师范大学学报(自然科学版) 年份:2015 文献类型 :期刊 关键词: 水位  梅西湖  水量交换  鄱阳湖  湿地 
描述:以鄱阳湖水文站点和梅西湖2011—2012年的水位资料为基础,基于主成分分析方法,选择修水站水位表征鄱阳湖的总体水位;以梅西湖为例来分析典型碟形洼地与鄱阳湖大湖区之间的水位关系,根据丰枯水位的涨落
全文:以鄱阳湖水文站点和梅西湖2011—2012年的水位资料为基础,基于主成分分析方法,选择修水站水位表征鄱阳湖的总体水位;以梅西湖为例来分析典型碟形洼地与鄱阳湖大湖区之间的水位关系,根据丰枯水位的涨落
鄱阳湖国家级自然保护区食块茎鸟类种群数量与水位的关系
作者: 陈冰 崔鹏 刘观华 李凤山 伍旭东 吴建东 曾南京 赵娜 徐海根  来源:湖泊科学 年份:2014 文献类型 :期刊 关键词: 水位  水鸟  鄱阳湖  种群数量 
描述:,分析越冬候鸟种群数量与鄱阳湖保护区内湖泊水位变化的关系.2003 2007年越冬季节,采用直接计数法调查鸟类的种群数量,通过非参数回归分析鸟类种群数量与水位之间的关系.结果表明,虽然4种食块茎鸟类的种群
全文:,分析越冬候鸟种群数量与鄱阳湖保护区内湖泊水位变化的关系.2003 2007年越冬季节,采用直接计数法调查鸟类的种群数量,通过非参数回归分析鸟类种群数量与水位之间的关系.结果表明,虽然4种食块茎鸟类的种群
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