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“江湖”大战 鄱阳湖水利枢纽工程博弈36 年
作者: 欧维 赵伟 方明 徐典波  来源:环球人文地理 年份:2017 文献类型 :期刊 关键词: 水位降低  博弈  长江中下游  长江流域  鄱阳湖  江湖  水利枢纽工程  生态地位 
描述:鄱阳湖是中国最大的淡水湖,因其特殊的生态地位,被人们称为长江流域的“绿肺”,有学者甚至直言,鄱阳湖一旦病变,长江中下游就会“半身不遂”。近年来,鄱阳湖连续出现枯水期水位降低、枯水期提前等“病况
全文:鄱阳湖是中国最大的淡水湖,因其特殊的生态地位,被人们称为长江流域的“绿肺”,有学者甚至直言,鄱阳湖一旦病变,长江中下游就会“半身不遂”。近年来,鄱阳湖连续出现枯水期水位降低、枯水期提前等“病况
鄱阳湖水利枢纽 “为”生态还是“伪”生态?亦或开发保护之争?
作者: 陈家宽 赖锡军 蒋勇  来源:中国周刊 年份:2017 文献类型 :期刊
描述:(闸)替代方案》的文章中说: 鉴于鄱阳湖在全球生态格局中具有无可替代的生态地位,阻隔江湖联系的鄱阳湖水利枢纽工程建设,将对生态造成巨大的负面影响,为了“一湖清水”,不能只将建设水利枢纽作为唯一途径,无坝(闸)替代方案仍然应该作为维护鄱阳湖生态系统健康和区域社会经济可持续发展规划与实践的最优选择。
全文:(闸)替代方案》的文章中说: 鉴于鄱阳湖在全球生态格局中具有无可替代的生态地位,阻隔江湖联系的鄱阳湖水利枢纽工程建设,将对生态造成巨大的负面影响,为了“一湖清水”,不能只将建设水利枢纽作为唯一途径,无坝(闸)替代方案仍然应该作为维护鄱阳湖生态系统健康和区域社会经济可持续发展规划与实践的最优选择。
鄱阳湖枯水水位及流速时空分布模拟
作者: 齐凌艳 黄佳聪 高俊峰 郭玉银  来源:长江流域资源与环境 年份:2017 文献类型 :期刊
描述:鄱阳湖枯水水位及流速时空分布模拟
环鄱阳湖旅游旅游经济联系与区域发展策略
作者: 侯立春 林振山 琚胜利 赖正清 吴连霞 张志荣  来源:长江流域资源与环境 年份:2017 文献类型 :期刊
描述:环鄱阳湖旅游旅游经济联系与区域发展策略
鄱阳湖出流水质2004~2014 年变化及其对水位变化的响应:对水质监测频率的启示
作者: 李冰 杨桂山 万荣荣 刘宝贵 戴雪 许晨  来源:长江流域资源与环境 年份:2017 文献类型 :期刊 关键词: 变化趋势  采样频率  水质  鄱阳湖出流  水情响应 
描述:。结果表明:(1)就DO,NH4+-N和CODMn而言,鄱阳湖出湖水质在20042014年没有显著恶化的趋势,然而在年内呈现明显的周期性变化,其浓度与湖泊水位波动有较显著的负相关性(p<0.01),相关系数
全文:。结果表明:(1)就DO,NH4+-N和CODMn而言,鄱阳湖出湖水质在20042014年没有显著恶化的趋势,然而在年内呈现明显的周期性变化,其浓度与湖泊水位波动有较显著的负相关性(p<0.01),相关系数
模拟研究变化水位和流速条件下鄱阳湖磷释放特征
作者: 童亚莉 梁涛 王凌青 李可欣  来源:Journal of Geographical Sciences 年份:2017 文献类型 :期刊
描述:Since the construction of the Three Gorges Dam,the Poyang Lake hydrological characteristics obviously changed.During the impoundment period of the Three Gorges Reservoir,the hydrodynamic factors of Poyang Lake varied.Water level dropped,the velocity decreased and water exchange time lengthened,which changed the release of phosphorous from sediments.In order to investigate how the hydrodynamic factors influence the release of phosphorous from sediments,we used a two-way annular flume device to simulate the release characteristics of phosphorous from sediments under variable water levels and velocities.We found that both water level rising and velocity increasing could enhance the disturbance intensity to sediments,which caused the increase of suspended solids(SS)concentration,total phosphorus(TP)concentration in the overlying water,and the ability that phosphorus released to overlying water from sediments enhanced as well:when overlying water velocity maintained 0.3 m/s,SS concentration increased to 4035.85 mg/L at the water level25 cm which was about 25 times compared to the minimum value and TP concentration in the overlying water also reached the maximum value at the water level 25 cm which was 1.2times that of the value at 10 cm;when water level maintained 15 cm,SS concentration increased to 4363.35 mg/L at the velocity of 0.5 m/s which was about 28 times compared to the value of 0 m/s,and TP concentration in the overlying water increased from 0.11 mg/L to 0.44mg/L.When the water level maintained 15 cm,the phosphorous release rate reached the maximum value of 4.86 mg/(md)at 0.4 m/s.The concentration of total dissolved phosphorous(TDP)and soluble reactive phosphate(SRP)both in overlying water and sediment-water interface were negatively correlated with p H.Using the parabolic equation,the optimum water level at a velocity of 0.3 m/s was calculated to be 0.57 cm,and the optimum velocity at water level of 15 cm was found to be 0.2 m/s.
全文:Since the construction of the Three Gorges Dam,the Poyang Lake hydrological characteristics obviously changed.During the impoundment period of the Three Gorges Reservoir,the hydrodynamic factors of Poyang Lake varied.Water level dropped,the velocity decreased and water exchange time lengthened,which changed the release of phosphorous from sediments.In order to investigate how the hydrodynamic factors influence the release of phosphorous from sediments,we used a two-way annular flume device to simulate the release characteristics of phosphorous from sediments under variable water levels and velocities.We found that both water level rising and velocity increasing could enhance the disturbance intensity to sediments,which caused the increase of suspended solids(SS)concentration,total phosphorus(TP)concentration in the overlying water,and the ability that phosphorus released to overlying water from sediments enhanced as well:when overlying water velocity maintained 0.3 m/s,SS concentration increased to 4035.85 mg/L at the water level25 cm which was about 25 times compared to the minimum value and TP concentration in the overlying water also reached the maximum value at the water level 25 cm which was 1.2times that of the value at 10 cm;when water level maintained 15 cm,SS concentration increased to 4363.35 mg/L at the velocity of 0.5 m/s which was about 28 times compared to the value of 0 m/s,and TP concentration in the overlying water increased from 0.11 mg/L to 0.44mg/L.When the water level maintained 15 cm,the phosphorous release rate reached the maximum value of 4.86 mg/(md)at 0.4 m/s.The concentration of total dissolved phosphorous(TDP)and soluble reactive phosphate(SRP)both in overlying water and sediment-water interface were negatively correlated with p H.Using the parabolic equation,the optimum water level at a velocity of 0.3 m/s was calculated to be 0.57 cm,and the optimum velocity at water level of 15 cm was found to be 0.2 m/s.
鄱阳湖湿地水位梯度下不同植物群落类型土壤有机碳组分特征
作者: 金奇 吴琴 钟欣孜 胡佳 胡启武  来源:生态学杂志 年份:2017 文献类型 :期刊 关键词: 鄱阳湖湿地  重组有机碳  可溶性有机碳  微生物生物量碳  轻组有机碳 
描述:(MBC)和可溶性碳(DOC)含量,以阐明鄱阳湖典型湿地土壤有机碳及其不同组分特征与影响因子,探讨植物群落演替对有机碳库及其组分的影响。结果表明:(1)各群落0~30 cm土层SOC、HFOC、LFOC
全文:(MBC)和可溶性碳(DOC)含量,以阐明鄱阳湖典型湿地土壤有机碳及其不同组分特征与影响因子,探讨植物群落演替对有机碳库及其组分的影响。结果表明:(1)各群落0~30 cm土层SOC、HFOC、LFOC
鄱阳湖湿地水位梯度下不同植物群落类型土壤有机碳组分特征
作者: 金奇 吴琴 钟欣孜 胡佳 胡启武  来源:生态学杂志 年份:2017 文献类型 :期刊 关键词: 鄱阳湖湿地  重组有机碳  可溶性有机碳  微生物生物量碳  轻组有机碳 
描述:(MBC)和可溶性碳(DOC)含量,以阐明鄱阳湖典型湿地土壤有机碳及其不同组分特征与影响因子,探讨植物群落演替对有机碳库及其组分的影响。结果表明:(1)各群落0~30 cm土层SOC、HFOC、LFOC
全文:(MBC)和可溶性碳(DOC)含量,以阐明鄱阳湖典型湿地土壤有机碳及其不同组分特征与影响因子,探讨植物群落演替对有机碳库及其组分的影响。结果表明:(1)各群落0~30 cm土层SOC、HFOC、LFOC
鄱阳湖典型洲滩湿地水分补排关系
作者: 林欢 许秀丽 张奇  来源:湖泊科学 年份:2017 文献类型 :期刊 关键词: 鄱阳湖湿地  水分补排过程  根系层  HYDRUS模型  GSPAC系统  土壤水 
描述:湿地水分在地下水含水层-土壤-植物-大气界面的运移和转换是维持能量和营养物平衡的重要环节,水分运移是湿地生态水文过程研究的关键.数值模型模拟已成为水分运移研究的重要手段,然而限于复杂的湿地自然条件及
全文:湿地水分在地下水含水层-土壤-植物-大气界面的运移和转换是维持能量和营养物平衡的重要环节,水分运移是湿地生态水文过程研究的关键.数值模型模拟已成为水分运移研究的重要手段,然而限于复杂的湿地自然条件及
[0图]鄱阳湖湖泊水文、湿地生态与流域生态环境研究
作者: 赖格英  来源:南昌:江西人民出版社 年份:2017 文献类型 :图书 关键词: 流域  区域生态环境  鄱阳湖  区域水文学  研究 
描述:本书为《鄱阳湖地理与环境研究》丛书之三。全书内容主要涵盖以下几方面的专题研究:鄱阳湖水文与湿地生态研究、鄱阳湖生态要素与环境特征研究、鄱阳湖空间信息技术应用研究。
全文:本书为《鄱阳湖地理与环境研究》丛书之三。全书内容主要涵盖以下几方面的专题研究:鄱阳湖水文与湿地生态研究、鄱阳湖生态要素与环境特征研究、鄱阳湖空间信息技术应用研究。
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