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- 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.
- 乡村医生陈凡经：在鄱阳湖小岛上经营 最美家庭
- 作者： 周智玲 张亮 来源：家庭百事通 年份：2015 文献类型 ：期刊
- 描述：一座偏远孤岛，一位乡村医生，一曲幸福之歌，一个“最美家庭”……对于江西省南昌市新建县南矶乡卫生院院长陈凡经来说，再多的褒奖也不为过。5月14日，全国妇联“最美家庭”揭晓仪式在北京人民大会堂举行，陈凡经家庭以“互相理解、尊重、平等、关爱”的文明家风光荣入榜。6月的一天，本刊记者与陈凡经面对面交流。精瘦、憨厚的他以悠然的神情、缓缓的言语，将家庭中朴素真诚、知足常乐、上孝下爱的美德深深地印在了我们的心里。
- 全文：一座偏远孤岛，一位乡村医生，一曲幸福之歌，一个“最美家庭”……对于江西省南昌市新建县南矶乡卫生院院长陈凡经来说，再多的褒奖也不为过。5月14日，全国妇联“最美家庭”揭晓仪式在北京人民大会堂举行，陈凡经家庭以“互相理解、尊重、平等、关爱”的文明家风光荣入榜。6月的一天，本刊记者与陈凡经面对面交流。精瘦、憨厚的他以悠然的神情、缓缓的言语，将家庭中朴素真诚、知足常乐、上孝下爱的美德深深地印在了我们的心里。
- 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
- 相似地理环境湿地植被格局差异及其成因分析——以洞庭湖和鄱阳湖为例
- 作者： 胡砚霞 来源：中国科学院大学 年份：2015 文献类型 ：学位论文
- 描述：相似地理环境湿地植被格局差异及其成因分析——以洞庭湖和鄱阳湖为例
- 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
- 气候变化和人类活动对鄱阳湖流域入湖水沙通量的影响
- 作者： 徐夏楠 来源：南京大学 年份：2015 文献类型 ：学位论文
- 描述：气候变化和人类活动对鄱阳湖流域入湖水沙通量的影响
- 气候变化和人类活动对鄱阳湖流域入湖水沙通量的影响
- 作者： 徐夏楠 来源：南京大学 年份：2015 文献类型 ：学位论文
- 描述：气候变化和人类活动对鄱阳湖流域入湖水沙通量的影响
- 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
- 相似地理环境湿地植被格局差异及其成因分析——以洞庭湖和鄱阳湖为例
- 作者： 胡砚霞 来源：中国科学院大学 年份：2015 文献类型 ：学位论文
- 描述：相似地理环境湿地植被格局差异及其成因分析——以洞庭湖和鄱阳湖为例