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碟形湖在鄱阳湖湿地生态系统的作用和意义
作者: 胡振鹏 张祖芳 刘以珍 纪伟涛 葛刚  来源:江西水利科技 年份:2015 文献类型 :期刊 关键词: 生物多样性  碟形湖  鄱阳湖  湿地 
描述:;静水水域有利于底栖动物和鱼类生长育肥;缓慢下降的水位、逐渐伸展的泥滩为越冬候鸟持续提供丰富的食物和歇息环境,全湖80%以上的水鸟在碟形湖区域越冬.高低不一、分布广泛的碟形湖群有效地缓解了干旱、洪水
全文:;静水水域有利于底栖动物和鱼类生长育肥;缓慢下降的水位、逐渐伸展的泥滩为越冬候鸟持续提供丰富的食物和歇息环境,全湖80%以上的水鸟在碟形湖区域越冬.高低不一、分布广泛的碟形湖群有效地缓解了干旱、洪水
鄱阳湖自然保护区湿地植被生物量空间分布规律
作者: 吴桂平 叶春 刘元波  来源:生态学报 年份:2015 文献类型 :期刊 关键词: 湿地植被  鄱阳湖自然保护区  空间分布规律  生物量时间序列  MODIS 
描述:为主的高生物量区。(3)保护区植被群落分布具有特定的季相变化特征,高、中、生物量区在不同的月份呈现出不同的空间生消和演进规律,鄱阳湖水位的周期性涨落是影响其变化的一个重要扰动因子。
全文:为主的高生物量区。(3)保护区植被群落分布具有特定的季相变化特征,高、中、生物量区在不同的月份呈现出不同的空间生消和演进规律,鄱阳湖水位的周期性涨落是影响其变化的一个重要扰动因子。
鄱阳湖自然保护区湿地植被生物量空间分布规律
作者: 吴桂平 叶春 刘元波  来源:生态学报 年份:2015 文献类型 :期刊 关键词: 湿地植被  鄱阳湖自然保护区  空间分布规律  生物量时间序列  MODIS 
描述:为主的高生物量区。(3)保护区植被群落分布具有特定的季相变化特征,高、中、生物量区在不同的月份呈现出不同的空间生消和演进规律,鄱阳湖水位的周期性涨落是影响其变化的一个重要扰动因子。
全文:为主的高生物量区。(3)保护区植被群落分布具有特定的季相变化特征,高、中、生物量区在不同的月份呈现出不同的空间生消和演进规律,鄱阳湖水位的周期性涨落是影响其变化的一个重要扰动因子。
鄱阳湖水位变化对湿地植物群落分布的影响
作者: 杜泽兵 谢正磊 向丽雄 徐丽婷 谢超 王月 吴燕平 满谦宁  来源:安徽农业科学 年份:2015 文献类型 :期刊 关键词: 湿地植物  水位变化  鄱阳湖  分布规律 
描述:[目的]探明水住与典型湿地植物生长之间的相互复杂关系,揭示湿地植物依赖水位变化的生长规律。[方法]通过选择不同月份的遥感影像,经解译定量分析不同水位条件下湿地植被带面积及其空间分布规律。[结果
全文:[目的]探明水住与典型湿地植物生长之间的相互复杂关系,揭示湿地植物依赖水位变化的生长规律。[方法]通过选择不同月份的遥感影像,经解译定量分析不同水位条件下湿地植被带面积及其空间分布规律。[结果
鄱阳湖非平稳水位波动及其与长江的交互作用关系
作者: 戴雪 万荣荣 杨桂山  来源:地理学报(英文版) 年份:2015 文献类型 :期刊 关键词: Yangtze  earlier  seasonal  intensified  downstream  lacustrine  river  representative  flood  dominate 
描述:Seasonal water-level fluctuations(WLF) play a dominate role in lacustrine ecosystems. River-lake interaction is a direct factor in changes of seasonal lake WLF, especially for those lakes naturally connected to upstream and downstream rivers. During the past decade, the modification of WLF in the Poyang Lake(the largest freshwater lake in China) has caused intensified flood and irrigation crises, reduced water availability, compromised water quality and extensive degradation of the lake ecosystem. There has been a conjecture as to whether the modification was caused by its interactions with Yangtze River. In this study, we investigated the variations of seasonal WLF in China’s Poyang Lake by comparing the water levels during the four distinct seasons(the dry season, the rising season, the flood season, and the retreating season) before and after 2003 when the Three Gorge Dam operated. The Water Surface Slope(WSS) was used as a representative parameter to measure the changes in river-lake interaction and its impacts on seasonal WLF. The results showed that the magnitude of seasonal WLF has changed considerably since 2003; the seasonal WLF of the Poyang Lake have been significantly altered by the fact that the water levels both rise and retreat earlier in the season and lowered water levels in general. The fluctuations of river-lake interactions, in particular the changes during the retreating season, are mainly responsible for these variations in magnitude of seasonal WLF. This study demonstrates that WSS is a representative parameter to denote river-lake interactions, and the results indicate that more emphasis should be placed on the decrease of the Poyang Lake caused by the lowered water levels of the Yangtze River, especially in the retreating season.
全文:Seasonal water-level fluctuations(WLF) play a dominate role in lacustrine ecosystems. River-lake interaction is a direct factor in changes of seasonal lake WLF, especially for those lakes naturally connected to upstream and downstream rivers. During the past decade, the modification of WLF in the Poyang Lake(the largest freshwater lake in China) has caused intensified flood and irrigation crises, reduced water availability, compromised water quality and extensive degradation of the lake ecosystem. There has been a conjecture as to whether the modification was caused by its interactions with Yangtze River. In this study, we investigated the variations of seasonal WLF in China’s Poyang Lake by comparing the water levels during the four distinct seasons(the dry season, the rising season, the flood season, and the retreating season) before and after 2003 when the Three Gorge Dam operated. The Water Surface Slope(WSS) was used as a representative parameter to measure the changes in river-lake interaction and its impacts on seasonal WLF. The results showed that the magnitude of seasonal WLF has changed considerably since 2003; the seasonal WLF of the Poyang Lake have been significantly altered by the fact that the water levels both rise and retreat earlier in the season and lowered water levels in general. The fluctuations of river-lake interactions, in particular the changes during the retreating season, are mainly responsible for these variations in magnitude of seasonal WLF. This study demonstrates that WSS is a representative parameter to denote river-lake interactions, and the results indicate that more emphasis should be placed on the decrease of the Poyang Lake caused by the lowered water levels of the Yangtze River, especially in the retreating season.
水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
作者: 冯文娟  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
鄱阳湖湿地植被时空分布特征及其对水位变化的响应研究
作者: 谭志强  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:鄱阳湖湿地植被时空分布特征及其对水位变化的响应研究
水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
作者: 冯文娟  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
鄱阳湖湿地植被时空分布特征及其对水位变化的响应研究
作者: 谭志强  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:鄱阳湖湿地植被时空分布特征及其对水位变化的响应研究
水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
作者: 冯文娟  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:水位对鄱阳湖湿地灰化薹草生理生态特征的影响研究
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