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- [0图]鄱阳湖人地关系与区域可持续发展研究
- 作者： 郑林 来源：南昌：江西人民出版社 年份：2017 文献类型 ：图书
- 描述：本书系《鄱阳湖地理与环境研究》丛书之一。全书论述了七个方面的问题：鄱阳湖湿地与流域研究教育部重点实验室(江西师范大学)建立的背景与重要意义研究、水利工程对鄱阳湖影响研究、鄱阳湖水旱灾害研究、鄱阳湖生态环境研究、鄱阳湖农业生产研究、鄱阳湖资源利用研究、鄱阳湖区域开发研究。
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全文：
本书系《鄱阳湖地理与环境研究》丛书之一。全书论述了七个方面的问题：鄱阳湖湿地与流域研究教育部重点实验室(江西师范大学)建立的背景与重要意义研究、水利工程对鄱阳湖影响研究、鄱阳湖水旱灾害研究、鄱阳湖生态环境研究、鄱阳湖农业生产研究、鄱阳湖资源利用研究、鄱阳湖区域开发研究。
- 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
- 鄱阳湖沙山单叶蔓荆（Ｖｉｔｅｘ ｒｏｔｕｎｄｉｆｏｌｉａ）叶性状沿沙化梯度变化特征
- 作者： 常玲玲 蔡家艳 吴琴 金奇 周红艳 胡启武 来源：中国沙漠 年份：2017 文献类型 ：期刊 关键词： 叶氮 沙山 鄱阳湖 rotundifolia) 叶磷 单叶蔓荆(Vitex 比叶面积
- 描述：1.58~13.14cm2,与湖岸线距离没有显著相关性,不能指示沙化程度对单叶蔓荆的影响。比叶面积81.6~206.3cm2·g-1,种内差异显著(P<0.05);单位质量的叶氮、磷含量分别为16.0
- 全文：1.58~13.14cm2,与湖岸线距离没有显著相关性,不能指示沙化程度对单叶蔓荆的影响。比叶面积81.6~206.3cm2·g-1,种内差异显著(P<0.05);单位质量的叶氮、磷含量分别为16.0