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- 鄱阳湖流域暴雨型泥石流形成机制与动力特征——以江西修水县卢庄沟泥石流为例
- 作者： 甘建军 袁良浍 李明 唐春 颜龙 来源：灾害学 年份：2017 文献类型 ：期刊 关键词： 形成机制 泥石流 鄱阳湖流域 卢庄沟 江西省修水县 动力特征
- 描述：。研究结果揭示该泥石流长6.25 km,流域面积4.27 km2,物源62.46万km3,主沟坡降大(524.1‰),高差约1 160 m地形易于汇水且泥石流动力足。江西省修水县卢庄沟泥石流形成机制和动力特征可总结为:暴雨-滑坡-松散堆积体搬运-老泥石流沟冲刷复活-泥石流形成。
- 全文：。研究结果揭示该泥石流长6.25 km,流域面积4.27 km2,物源62.46万km3,主沟坡降大(524.1‰),高差约1 160 m地形易于汇水且泥石流动力足。江西省修水县卢庄沟泥石流形成机制和动力特征可总结为:暴雨-滑坡-松散堆积体搬运-老泥石流沟冲刷复活-泥石流形成。
- 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
- 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.
- 鄱阳湖生态经济区双季稻绿色高效循环生产关键技术集成与示范——湖口示范区田间展示为例
- 作者： 徐银腾 陈晓 阳健 杨秋林 欧阳建荣 徐拥军 徐松柏 柳成林 来源：农业开发与装备 年份：2017 文献类型 ：期刊 关键词： 双季稻 有机肥 施肥试验
- 描述：依据江西省农业科学院土肥所提供的双季稻猪粪有机肥+水稻的资源高效循环利用技术模式试验方案的要求,建立相关技术核心试验区、示范区和辐射区。使研究成果得到充分应用和转化,促进周边地区水稻增产增收。并在湖口县均桥镇均桥村种粮大户蔡初成承包的水稻田进行了示范展示。
- 全文：依据江西省农业科学院土肥所提供的双季稻猪粪有机肥+水稻的资源高效循环利用技术模式试验方案的要求,建立相关技术核心试验区、示范区和辐射区。使研究成果得到充分应用和转化,促进周边地区水稻增产增收。并在湖口县均桥镇均桥村种粮大户蔡初成承包的水稻田进行了示范展示。
- [0图]生物
- 作者：暂无 年份：2017 文献类型 ：新闻
- 描述：鄱阳湖区地形多样,各种地貌类型较为齐全,气候温和,雨水充沛,水热基本同期,光能资源比较丰富,为生物的繁衍提供了有利的条件,湖区不仅有丰富的水生生物资源,而且湖滩洲地、丘陵山地的生物资源也比较丰富，区内已发现有当今世界上最大的白鹤群越冬场所，还有蜚声国内外的庐山植物园。
- 全文： 鄱阳湖区地形多样,各种地貌类型较为齐全,气候温和,雨水充沛,水热基本同期,光能资源比较丰富,为生物的繁衍提供了有利的条件,湖区不仅有丰富的水生生物资源,而且湖滩洲地、丘陵山地的生物资源也比较丰富，区内已发现有当今世界上最大的白鹤群越冬场所，还有蜚声国内外的庐山植物园。
- [0图]物产
- 作者：暂无 年份：2017 文献类型 ：新闻
- 描述：鄱阳得鄱阳湖滋润，饱汲天地之精瑞。地大物博，资源丰富，山林绵亘，江湖密布，234万亩山地郁郁葱葱，141万亩水域流金淌银。鄱阳县拥有鄱阳湖捕捞面积111万亩，内陆可养水面30万亩，可渔低洼农田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。
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全文：
鄱阳得鄱阳湖滋润，饱汲天地之精瑞。地大物博，资源丰富，山林绵亘，江湖密布，234万亩山地郁郁葱葱，141万亩水域流金淌银。鄱阳县拥有鄱阳湖捕捞面积111万亩，内陆可养水面30万亩，可渔低洼农田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。