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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.
- 社会资本对环境可持续发展的影响——以鄱阳湖地区为例
- 作者： 张嘉民 吴佳桃 秦璇 蔺璐璐 来源：知识经济 年份：2017 文献类型 ：期刊 关键词： 横截面分析 社会资本 时间序列分析 环境可持续发展
- 描述：运用鄱阳湖生态经济区3个样本地区(南昌、九江、上饶)2008~2015年的面板数据对社会资本与环境可持续发展的关系进行了时间序列分析,并另选了6个地区(星子县、鄱阳县等)进行了2016年的横截面分析
- 全文：运用鄱阳湖生态经济区3个样本地区(南昌、九江、上饶)2008~2015年的面板数据对社会资本与环境可持续发展的关系进行了时间序列分析,并另选了6个地区(星子县、鄱阳县等)进行了2016年的横截面分析
- 鄱阳湖生态经济区高效生态农业建设主体行为及对策研究
- 作者： 戴天放 麻福芳 魏玲玲 徐光耀 王雪桥 来源：中国农业文摘-农业工程 年份：2017 文献类型 ：期刊 关键词： 高效生态农业主体 行为关系 对策 行为特征
- 描述：低于从事非生态农业生产;政府支持生态农业力度不够,难以激励各生产主体从事生态农业建设;生态农业建设各主体行为关系作用机制不够健全。在上述的研究基础上,从高效生态农业主体角度提出促进鄱阳湖生态经济区高效生态农业的相应对策与建议。
- 全文：低于从事非生态农业生产;政府支持生态农业力度不够,难以激励各生产主体从事生态农业建设;生态农业建设各主体行为关系作用机制不够健全。在上述的研究基础上,从高效生态农业主体角度提出促进鄱阳湖生态经济区高效生态农业的相应对策与建议。
- 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。