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基于高通量DNA测序的鄱阳湖微生物生态研究
作者: 秦煊  来源:南昌大学 年份:2015 文献类型 :学位论文 关键词: 第二代测序技术  鄱阳湖  环境微生物学  微生物多样性 
描述:(Armatimonadetes)1%、衣原体门(Chlamydiae)1%、TM7(1%);Proteobacteria、Bacteroidetes、Firmicutes
全文:(Armatimonadetes)1%、衣原体门(Chlamydiae)1%、TM7(1%);Proteobacteria、Bacteroidetes、Firmicutes
基于高通量DNA测序的鄱阳湖微生物生态研究
作者: 秦煊  来源:南昌大学 年份:2015 文献类型 :学位论文 关键词: 第二代测序技术  鄱阳湖  环境微生物学  微生物多样性 
描述:(Armatimonadetes)1%、衣原体门(Chlamydiae)1%、TM7(1%);Proteobacteria、Bacteroidetes、Firmicutes
全文:(Armatimonadetes)1%、衣原体门(Chlamydiae)1%、TM7(1%);Proteobacteria、Bacteroidetes、Firmicutes
鄱阳湖自然保护区沙湖大型底栖动物群落结构及其影响因子研究
作者: 刘息冕  来源:南昌大学 年份:2013 文献类型 :学位论文 关键词: 水位变化  鄱阳湖自然保护区  功能摄食类群  大型底栖动物  群落结构 
描述:。主要研究结果如下:1.采集到沙湖大型底栖动物72种,隶属于7纲25科55属,其中相对重要性指数较高的种类为尼氏癞颤蚓Spirosperma nikolskyi、梨形环棱螺Bellamya
全文:。主要研究结果如下:1.采集到沙湖大型底栖动物72种,隶属于7纲25科55属,其中相对重要性指数较高的种类为尼氏癞颤蚓Spirosperma nikolskyi、梨形环棱螺Bellamya
基于高通量DNA测序的鄱阳湖微生物生态研究
作者: 秦煊  来源:南昌大学 年份:2015 文献类型 :学位论文 关键词: 第二代测序技术  鄱阳湖  环境微生物学  微生物多样性 
描述:(Armatimonadetes)1%、衣原体门(Chlamydiae)1%、TM7(1%);Proteobacteria、Bacteroidetes、Firmicutes
全文:(Armatimonadetes)1%、衣原体门(Chlamydiae)1%、TM7(1%);Proteobacteria、Bacteroidetes、Firmicutes
鄱阳湖流域史前人类遗址时空分布及其环境响应
作者: 徐佳佳 贾玉连 马春梅 朱诚 吴立 李育远 王鑫浩  来源:地理学报(英文版) 年份:2016 文献类型 :期刊 关键词: expanded  northward  geographic  records  环境响应  鄱阳湖流域  climatic  ancient  Holocene  southeast 
描述:The temporal-spatial geographic distribution of archaeological sites and its feature between 10.0–2.8 ka BP(ka BP= thousands of years before 0 BP, where “0 BP” is defined as the year AD 1950) were determined, based on GIS spatial analysis in the Poyang Lake Basin. The relationship between geographic distribution of sites of different periods under subsistence existence of ancient civilizations, climate and environmental change was investigated. The results revealed numerous archaeological sites of the Neolithic Age(10.0–3.6 ka BP). The sites were mainly located in the northern part of the Poyang Lake Basin, a hilly and mountainous area with many river terraces suitable for the development of human civilization. The number of archaeological sites rapidly increased during the Shang and Zhou dynasties(3.6–2.8 ka BP) and spread widely on the floodplains of the middle and lower reaches of Ganjiang River and onto the west, south, and southeast beach areas of the Poyang Lake. Holocene records of climate change suggested that it was possible that climate fluctuations had a great impact on human evolution in the study area. Before 3.6 ka BP, westward and northward expansion of Neolithic cultures in the Poyang Lake watershed occurred under the background of climate amelioration(becoming warmer and wetter). The ancient people lived in the hilly areas with high elevation. The simple mode of a fishing and gathering economy was mostly suited to this area in the early Neolithic Age. The scope of human activities was expanded and cultural diversity developed in the late Neolithic Age. However, with population growth and increasing survival pressure in a dry-cold climatic stage after 3.6 ka BP, this simple living mode had to be abandoned, and various forms of economy, the majority being agriculture, were developed on flood plains of the lower reaches of numerous rivers around Poyang Lake. This promoted flourishing of the Bronze culture of South China.
全文:The temporal-spatial geographic distribution of archaeological sites and its feature between 10.0–2.8 ka BP(ka BP= thousands of years before 0 BP, where “0 BP” is defined as the year AD 1950) were determined, based on GIS spatial analysis in the Poyang Lake Basin. The relationship between geographic distribution of sites of different periods under subsistence existence of ancient civilizations, climate and environmental change was investigated. The results revealed numerous archaeological sites of the Neolithic Age(10.0–3.6 ka BP). The sites were mainly located in the northern part of the Poyang Lake Basin, a hilly and mountainous area with many river terraces suitable for the development of human civilization. The number of archaeological sites rapidly increased during the Shang and Zhou dynasties(3.6–2.8 ka BP) and spread widely on the floodplains of the middle and lower reaches of Ganjiang River and onto the west, south, and southeast beach areas of the Poyang Lake. Holocene records of climate change suggested that it was possible that climate fluctuations had a great impact on human evolution in the study area. Before 3.6 ka BP, westward and northward expansion of Neolithic cultures in the Poyang Lake watershed occurred under the background of climate amelioration(becoming warmer and wetter). The ancient people lived in the hilly areas with high elevation. The simple mode of a fishing and gathering economy was mostly suited to this area in the early Neolithic Age. The scope of human activities was expanded and cultural diversity developed in the late Neolithic Age. However, with population growth and increasing survival pressure in a dry-cold climatic stage after 3.6 ka BP, this simple living mode had to be abandoned, and various forms of economy, the majority being agriculture, were developed on flood plains of the lower reaches of numerous rivers around Poyang Lake. This promoted flourishing of the Bronze culture of South China.
基于高通量DNA测序的鄱阳湖微生物生态研究
作者: 秦煊  来源:南昌大学 年份:2015 文献类型 :学位论文 关键词: 第二代测序技术  鄱阳湖  环境微生物学  微生物多样性 
描述:(Armatimonadetes)1%、衣原体门(Chlamydiae)1%、TM7(1%);Proteobacteria、Bacteroidetes、Firmicutes
全文:(Armatimonadetes)1%、衣原体门(Chlamydiae)1%、TM7(1%);Proteobacteria、Bacteroidetes、Firmicutes
鄱阳湖水文特性分析
作者: 徐德龙 熊明 张晶  来源:人民长江 年份:2002 文献类型 :期刊 关键词: hydrologic  composition  Poyang  property  action  Lake  storage  flood 
描述:The Poyang lake is currently the largest freshwater lake in China. Hydrologic properties of this lake, including precipitation, runoff, flood, sediment transport and so on have been analyzed on basis of large amount of measurements. Variation of these properties within a year and among years and the regional distribution are explored. The encounter probability of the outflow from Poyang Lake with that from Changjiang River is computed and the detention volume of Poyang Lake is analyzed. In accordance with water balance theory, the detention storage volume of Poyang Lake and Changjiang River corresponding to the annual maximum 60-day flood volumes in 9 typical heavy flood years of 1968, 1969, 1973, 1980, 1983, 1996 and 1998 have been calculated. The detention storage capacity of both the Lake and the River ranges from 5.6 billion to 16.5 billion m\+3, 11.5 billion m\+3 at average. Among which, the detention storage capacity of Poyang Lake is 9.5 billion m\+3, accounting for 82.6%. Poyang Lake has played a very important role in detaining floods from the five rivers of the Lake system as well as floods on the river section from Changjiang to Bali. There would have more frequent and more serious flooding on the middle and lower Changjiang River, especially in the region around Hukou if there were no Poyang Lake to detain and store the floodwater.
全文:The Poyang lake is currently the largest freshwater lake in China. Hydrologic properties of this lake, including precipitation, runoff, flood, sediment transport and so on have been analyzed on basis of large amount of measurements. Variation of these properties within a year and among years and the regional distribution are explored. The encounter probability of the outflow from Poyang Lake with that from Changjiang River is computed and the detention volume of Poyang Lake is analyzed. In accordance with water balance theory, the detention storage volume of Poyang Lake and Changjiang River corresponding to the annual maximum 60-day flood volumes in 9 typical heavy flood years of 1968, 1969, 1973, 1980, 1983, 1996 and 1998 have been calculated. The detention storage capacity of both the Lake and the River ranges from 5.6 billion to 16.5 billion m\+3, 11.5 billion m\+3 at average. Among which, the detention storage capacity of Poyang Lake is 9.5 billion m\+3, accounting for 82.6%. Poyang Lake has played a very important role in detaining floods from the five rivers of the Lake system as well as floods on the river section from Changjiang to Bali. There would have more frequent and more serious flooding on the middle and lower Changjiang River, especially in the region around Hukou if there were no Poyang Lake to detain and store the floodwater.
一种应用遥感技术快速确定鄱阳湖区有螺洲滩的方法
作者: 郭家钢 陈红根 林丹丹 胡广汉 吴晓华 李东 刘红云 郑江 陈名刚  来源:中国寄生虫病防治杂志 年份:2002 文献类型 :期刊 关键词: 钉螺  遥感  血吸虫病 
描述:目的应用地理信息系统/遥感技术(GIS/RS)快速确定鄱阳湖区钉螺孳生地带及血吸虫病高危区域. 方法选择鄱阳湖区内3个洲岛型血吸病重度流行村周围的洲滩地图进行数字化,在数字化地图的基础上分别对两张Landsat 5 (洪水期和沽水期)TM卫星遥感片进行校正,并提取出冬陆夏水洲滩部分,运用ERDAS IMAGINE软件对此洲滩进行计算机非监督分类(Unsupervised Classification)、校正植被指数(Normalized Difference Vegetation Index, NDVI)和穗帽湿度变换指数(Tasseled Cap, TC)模型计算;用传统方法进行螺情调查,卫星定位仪(GPS)记录有钉螺点的经纬度,同时选择部分堤内的农田和水溏(无螺区)作为对照点. 结果用计算机非监督分类共分为10类,根据现场调查的钉螺分布图,有螺点主要分布在计算机非监督分类的6、7和8类中,进一步模型分析表明,有螺点主要分布在校正植被指数NDVI>115和穗帽湿度变换指数TC在-10到3之间,而堤内农田和水溏等对照点中的值则主要分布此数值以外. 结论鄱阳湖区钉螺分布和孳生与洲滩湖草的生长状况与及湿度有着密切的关系,本项研究提示,运用计算机非监督分类法可大致确定6、7和8类为有螺植被环境,然后通过校正植被指数(NDVI>110)确定植被优质区为钉螺的孳生环境,最后通过穗帽湿度变换指数(TC=-10~3)确定钉螺最佳孳生地,其准确率达95%以上.该方法简单易行,是湖区快速确定钉螺孳生地以及血吸虫病高危区的有效方法之一.
全文:目的应用地理信息系统/遥感技术(GIS/RS)快速确定鄱阳湖区钉螺孳生地带及血吸虫病高危区域. 方法选择鄱阳湖区内3个洲岛型血吸病重度流行村周围的洲滩地图进行数字化,在数字化地图的基础上分别对两张Landsat 5 (洪水期和沽水期)TM卫星遥感片进行校正,并提取出冬陆夏水洲滩部分,运用ERDAS IMAGINE软件对此洲滩进行计算机非监督分类(Unsupervised Classification)、校正植被指数(Normalized Difference Vegetation Index, NDVI)和穗帽湿度变换指数(Tasseled Cap, TC)模型计算;用传统方法进行螺情调查,卫星定位仪(GPS)记录有钉螺点的经纬度,同时选择部分堤内的农田和水溏(无螺区)作为对照点. 结果用计算机非监督分类共分为10类,根据现场调查的钉螺分布图,有螺点主要分布在计算机非监督分类的6、7和8类中,进一步模型分析表明,有螺点主要分布在校正植被指数NDVI>115和穗帽湿度变换指数TC在-10到3之间,而堤内农田和水溏等对照点中的值则主要分布此数值以外. 结论鄱阳湖区钉螺分布和孳生与洲滩湖草的生长状况与及湿度有着密切的关系,本项研究提示,运用计算机非监督分类法可大致确定6、7和8类为有螺植被环境,然后通过校正植被指数(NDVI>110)确定植被优质区为钉螺的孳生环境,最后通过穗帽湿度变换指数(TC=-10~3)确定钉螺最佳孳生地,其准确率达95%以上.该方法简单易行,是湖区快速确定钉螺孳生地以及血吸虫病高危区的有效方法之一.
新一代TRMM V7降水产品在鄱阳湖流域精度分析及应用研究
作者: 费明哲  来源:南京邮电大学 年份:2015 文献类型 :学位论文 关键词: VIC模型  精度评价  降水  3B42  新安江模型  鄱阳湖流域  TRMM 
描述:流域水文应用精度。结果发现:(1)TRMM V6、V7、RT V6和RT V7四种降水产品在年尺度上模拟效果较好,都能反映出鄱阳湖流域自西南向东北方向降水递增的趋势,年相对偏差都在0.1左右;季度、月
全文:流域水文应用精度。结果发现:(1)TRMM V6、V7、RT V6和RT V7四种降水产品在年尺度上模拟效果较好,都能反映出鄱阳湖流域自西南向东北方向降水递增的趋势,年相对偏差都在0.1左右;季度、月
新一代TRMM V7降水产品在鄱阳湖流域精度分析及应用研究
作者: 费明哲  来源:南京邮电大学 年份:2015 文献类型 :学位论文 关键词: VIC模型  精度评价  降水  3B42  新安江模型  鄱阳湖流域  TRMM 
描述:流域水文应用精度。结果发现:(1)TRMM V6、V7、RT V6和RT V7四种降水产品在年尺度上模拟效果较好,都能反映出鄱阳湖流域自西南向东北方向降水递增的趋势,年相对偏差都在0.1左右;季度、月
全文:流域水文应用精度。结果发现:(1)TRMM V6、V7、RT V6和RT V7四种降水产品在年尺度上模拟效果较好,都能反映出鄱阳湖流域自西南向东北方向降水递增的趋势,年相对偏差都在0.1左右;季度、月
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