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气候变化和人类活动对鄱阳湖流域入湖输沙量影响的定量估算
作者: 徐夏楠 高建华 贾建军 Albert J Kettner 邢飞 汪亚平 齐述华 廖富强  来源:地理研究 年份:2015 文献类型 :期刊 关键词: 输沙量变化  Trend模型  植被覆盖变化  鄱阳湖流域  水库修建  气候变化  Hydro 
描述:变化。在此基础上,探讨了气候变化、植被覆盖变化和水库修建活动对输沙量变化的影响,并定量估算了上述因子对流域输沙量变化的贡献。结果表明:1 1956-2010年,气候、植被和水库三种因子影响下的流域年均输沙量
全文:变化。在此基础上,探讨了气候变化、植被覆盖变化和水库修建活动对输沙量变化的影响,并定量估算了上述因子对流域输沙量变化的贡献。结果表明:1 1956-2010年,气候、植被和水库三种因子影响下的流域年均输沙量
气候变化和人类活动对鄱阳湖流域入湖输沙量影响的定量估算
作者: 徐夏楠 高建华 贾建军 Albert J Kettner 邢飞 汪亚平 齐述华 廖富强  来源:地理研究 年份:2015 文献类型 :期刊 关键词: 输沙量变化  Trend模型  植被覆盖变化  鄱阳湖流域  水库修建  气候变化  Hydro 
描述:变化。在此基础上,探讨了气候变化、植被覆盖变化和水库修建活动对输沙量变化的影响,并定量估算了上述因子对流域输沙量变化的贡献。结果表明:1 1956-2010年,气候、植被和水库三种因子影响下的流域年均输沙量
全文:变化。在此基础上,探讨了气候变化、植被覆盖变化和水库修建活动对输沙量变化的影响,并定量估算了上述因子对流域输沙量变化的贡献。结果表明:1 1956-2010年,气候、植被和水库三种因子影响下的流域年均输沙量
水文变异条件下鄱阳湖流域生态流量研究
作者: 刘剑宇 张强 顾西辉  来源:生态学报 年份:2015 文献类型 :期刊 关键词: 生态流量  鄱阳湖流域  水文变异 
描述:。在此基础上,采用15种概率分布函数分别拟合五站各月变异前日流量序列,最终确定五站点各月最优分布函数及所对应的概率密度最大处的流量,即得河道内生态流量。研究表明:(1)抚河于1962年发生弱变异,赣江、修河
全文:。在此基础上,采用15种概率分布函数分别拟合五站各月变异前日流量序列,最终确定五站点各月最优分布函数及所对应的概率密度最大处的流量,即得河道内生态流量。研究表明:(1)抚河于1962年发生弱变异,赣江、修河
水文变异条件下鄱阳湖流域的生态流量
作者: 刘剑宇 张强 顾西辉  来源:生态学报 年份:2015 文献类型 :期刊 关键词: 生态流量  鄱阳湖流域  水文变异 
描述:。在此基础上,采用15种概率分布函数分别拟合5站各月变异前日流量序列,最终确定5站点各月最优分布函数及所对应的概率密度最大处的流量,即得河道内生态流量。研究表明:(1)抚河于1962年发生弱变异,赣江、修河
全文:。在此基础上,采用15种概率分布函数分别拟合5站各月变异前日流量序列,最终确定5站点各月最优分布函数及所对应的概率密度最大处的流量,即得河道内生态流量。研究表明:(1)抚河于1962年发生弱变异,赣江、修河
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.
水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
作者: 冯文娟  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
鄱阳湖湿地植被时空分布特征及其对水位变化的响应研究
作者: 谭志强  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:鄱阳湖湿地植被时空分布特征及其对水位变化的响应研究
水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
作者: 冯文娟  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
鄱阳湖湿地植被时空分布特征及其对水位变化的响应研究
作者: 谭志强  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:鄱阳湖湿地植被时空分布特征及其对水位变化的响应研究
水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
作者: 冯文娟  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
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