检索结果相关分组
- [0图]鄱阳湖鳜鱼窒息点与耗氧率的初步研究
- 作者： 杨春 李达 徐光龙 张力 年份：2017 文献类型 ：图书
- 描述：鄱阳湖鳜鱼窒息点与耗氧率的初步研究
- 环鄱阳湖植棉区棉花与马铃薯连作轻简栽培技术
- 作者： 陈宜 杨磊 孙亮庆 曾小林 柯兴盛 张允昔 鲁速明 夏绍南 李捷 来源：中国棉花 年份：2017 文献类型 ：期刊 关键词： 轻简栽培 棉花 耕作模式 鄱阳湖植棉区 马铃薯
- 描述：为了实现环鄱阳湖植棉区棉花生产的绿色轻简高效发展和棉花生产方式转变,于2014-2016年在环鄱阳湖植棉区进行了“棉花与马铃薯连作栽培模式”的试验示范。结果表明:该模式直播棉花籽棉产量为3 4534
- 全文：为了实现环鄱阳湖植棉区棉花生产的绿色轻简高效发展和棉花生产方式转变,于2014-2016年在环鄱阳湖植棉区进行了“棉花与马铃薯连作栽培模式”的试验示范。结果表明:该模式直播棉花籽棉产量为3 4534
- 基于EEMD的鄱阳湖流域年降水量周期预测
- 作者： 郭家力 祝薄丽 李英海 郭靖 张静文 来源：水电能源科学 年份：2017 文献类型 ：期刊 关键词： 年降水量 EEMD 鄱阳湖 周期预测
- 描述：气候变化影响下的降水量周期变化对于认识鄱阳湖枯水具有重要意义。采用EEMD方法分别将实测和模拟年降水量分解成不同频率的成分,然后采用FFT求得各IMF分量周期,以便对比未来和基准期的周期变化
- 全文：气候变化影响下的降水量周期变化对于认识鄱阳湖枯水具有重要意义。采用EEMD方法分别将实测和模拟年降水量分解成不同频率的成分,然后采用FFT求得各IMF分量周期,以便对比未来和基准期的周期变化
- 鄱阳湖,观赏鸟儿的天堂
- 作者： 赵乾海 来源：保健医苑 年份：2017 文献类型 ：期刊 关键词： 当代文学 鄱阳湖 散文 中国 观赏
- 描述：到庐山识得真面目后,原计划再到黄山一游。既然身在江西,何不去体验感受一下被西方人认为是贵族享受的户外游乐活动——观鸟呢?于是,直奔鄱阳湖。鄱阳湖古称彭蠡,《尚书·禹贡》有“彭蠡既潴,阳鸟攸居”之说,又有彭蠡湖、彭蠡泽、彭泽、彭湖、扬澜、宫亭湖等多种称谓。南北长173公里,东西最宽处达74公里,平均
- 全文：到庐山识得真面目后,原计划再到黄山一游。既然身在江西,何不去体验感受一下被西方人认为是贵族享受的户外游乐活动——观鸟呢?于是,直奔鄱阳湖。鄱阳湖古称彭蠡,《尚书·禹贡》有“彭蠡既潴,阳鸟攸居”之说,又有彭蠡湖、彭蠡泽、彭泽、彭湖、扬澜、宫亭湖等多种称谓。南北长173公里,东西最宽处达74公里,平均
- 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.
- 高密度电阻率法在鄱阳湖圩堤防汛抢险中的应用
- 作者： 万怡国 高江林 邹晨阳 来源：人民长江 年份：2017 文献类型 ：期刊 关键词： 隐患探测 防汛抢险 高密度电阻率法 鄱阳湖区圩堤
- 描述：鄱阳湖区圩堤由于堤身环境、质量及区域地质条件等原因,易发生堤身渗漏和堤基管涌等险情,汛期高水位时,此类险情直接威胁圩堤安全。针对湖区西河东联圩堤身渗漏传统处置方法效果不佳的问题,采用高密度电阻率法
- 全文：鄱阳湖区圩堤由于堤身环境、质量及区域地质条件等原因,易发生堤身渗漏和堤基管涌等险情,汛期高水位时,此类险情直接威胁圩堤安全。针对湖区西河东联圩堤身渗漏传统处置方法效果不佳的问题,采用高密度电阻率法
- 鄱阳湖流域水资源量预测
- 作者： 钱贵伍 游黎 陈爱民 来源：安徽农业科学 年份：2017 文献类型 ：期刊 关键词： 水资源量 SRES情景 GCM模式 预测模型 气候变化
- 描述：(GCM)下的CMIP3数据,预测了鄱阳湖流域3种SRES情景下未来的水资源量,结果显示鄱阳湖流域的水资源量将有小幅增加。该研究结果可为鄱阳湖流域经济社会发展的中、长期规划提供理论支撑。
- 全文：(GCM)下的CMIP3数据,预测了鄱阳湖流域3种SRES情景下未来的水资源量,结果显示鄱阳湖流域的水资源量将有小幅增加。该研究结果可为鄱阳湖流域经济社会发展的中、长期规划提供理论支撑。
- [0图]物产
- 作者：暂无 年份：2017 文献类型 ：新闻
- 描述：亩，是全国第二大水产县，是全国水产百强县、重点县。鄱阳有悠久的渔业生产历史，有浩大的渔业生产队伍，鱼类品种繁多，水产资源极为丰富，尤其以珠湖银鱼、鄱阳湖虾蟹、鄱阳湖水生植物藜蒿、白莲等享誉全国。
- 全文：农田34万亩，是全国第二大水产县，是全国水产百强县、重点县。鄱阳有悠久的渔业生产历史，有浩大的渔业生产队伍，鱼类品种繁多，水产资源极为丰富，尤其以珠湖银鱼、鄱阳湖虾蟹、鄱阳湖水生植物藜蒿、白莲等享誉全国。