检索结果相关分组
- 基于Landsat-8OLI的鄱阳湖叶绿素a浓度定量反演
- 作者： 黄灵光 方豫 张大文 林联盛 来源：江西科学 年份：2016 文献类型 ：期刊 关键词： Landsat 鄱阳湖 模型 8 叶绿素a OLI
- 描述：Landsat-8 OLI数据的应用越来广泛、成熟,但尚未见诸在水质监测,尤其是叶绿素a浓度监测方面的应用。以叶绿素a作为参数,结合准同步的实测数据,通过在鄱阳湖的应用案例,研究、探讨利用
- 全文：Landsat-8 OLI数据的应用越来广泛、成熟,但尚未见诸在水质监测,尤其是叶绿素a浓度监测方面的应用。以叶绿素a作为参数,结合准同步的实测数据,通过在鄱阳湖的应用案例,研究、探讨利用
- 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
- 鄱阳湖鱼类的寄生吸虫 Ⅱ.棘口科、发状科和血居科四新种记述
- 作者： 王溪云 来源：动物分类学报 年份：1982 文献类型 ：期刊 关键词： 棘口科 发状科 卵黄腺 口吸盘 鄱阳湖 血居科 新种记述 腹吸盘 血居吸虫 卵黄滤泡
- 描述：作者在整理1975年以来所采集的鄱阳湖鱼类的寄生吸虫时,除独睾科(MonorchiidaeOdhner,1911)已记述三新种外,尚有棘口科(Echinostomatidae Dietz,1909)二种、发状科(Gorgoderidae Looss,1901)和血居科(Sanguinicolidae Graff,1907)各一种,系文献未曾记载过。虫体描述系根据活体标本及盐酸卡红整体染色制片标本观察、测量(单位:毫米)。模式标本存江西省寄生虫病研究所。
- 全文：作者在整理1975年以来所采集的鄱阳湖鱼类的寄生吸虫时,除独睾科(MonorchiidaeOdhner,1911)已记述三新种外,尚有棘口科(Echinostomatidae Dietz,1909)二种、发状科(Gorgoderidae Looss,1901)和血居科(Sanguinicolidae Graff,1907)各一种,系文献未曾记载过。虫体描述系根据活体标本及盐酸卡红整体染色制片标本观察、测量(单位:毫米)。模式标本存江西省寄生虫病研究所。
- 鄱阳湖鱼类的寄生吸虫——Ⅵ.孔肠科等四科的四新种记述
- 作者： 王溪云 来源：动物分类学报 年份：1983 文献类型 ：期刊 关键词： 卵黄腺 口吸盘 卵巢 鄱阳湖 生殖孔 新种记述 腹吸盘 卵大小 血居吸虫 动物分类学
- 描述：作者在整理1975—1981年所搜集的鱼类寄生吸虫时,又发现孔肠科(OpecoelidaeOzaki,1925)、独睾科(Monorchiidae,Odhner 1911)、血居科(Sanguinicolidae Graff,1907)和斜睾科(Plagiorchidae Luhe,1901)各有一新种,系文献未曾记载过,现描记于下。虫体描述系根据活体标本和盐酸卡红染色标本观察、测量(单位:毫米)结果。模式标本存江西省科学院微生物研究所。
- 全文：作者在整理1975—1981年所搜集的鱼类寄生吸虫时,又发现孔肠科(OpecoelidaeOzaki,1925)、独睾科(Monorchiidae,Odhner 1911)、血居科(Sanguinicolidae Graff,1907)和斜睾科(Plagiorchidae Luhe,1901)各有一新种,系文献未曾记载过,现描记于下。虫体描述系根据活体标本和盐酸卡红染色标本观察、测量(单位:毫米)结果。模式标本存江西省科学院微生物研究所。
- 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.
- 鄱阳湖洲滩优势植物种群的分布格局
- 作者： 葛刚 赵安娜 钟义勇 吴志强 来源：湿地科学 年份：2011 文献类型 ：期刊 关键词： 分布格局 鄱阳湖 湿地 植物种群
- 描述：根据野外样地调查数据,应用方差均值比率法、聚集强度指数法和相关分析法,对鄱阳湖洲滩优势植物种群分布格局进行了研究,分析了其形成的原因,并比较了各指数间的关系。结果表明,鄱阳湖洲滩优势植物种群都为聚集分布,它们的聚集强度存在差异,聚集度最高的是糙叶苔草(Carex scabrifolia),最小的是稻槎菜(Lapsana apogonoides),以根茎繁殖的多年生植物的聚集度要高于以种子繁殖的一年生植物;在空间上,洲滩植物种沿水分梯度呈现有规律的分布,与湿地土壤的沉积类型也有一定关系;湿地植物的克隆繁殖特性和对水分梯度的依赖性是种群分布格局形成的主要原因。
- 全文：根据野外样地调查数据,应用方差均值比率法、聚集强度指数法和相关分析法,对鄱阳湖洲滩优势植物种群分布格局进行了研究,分析了其形成的原因,并比较了各指数间的关系。结果表明,鄱阳湖洲滩优势植物种群都为聚集分布,它们的聚集强度存在差异,聚集度最高的是糙叶苔草(Carex scabrifolia),最小的是稻槎菜(Lapsana apogonoides),以根茎繁殖的多年生植物的聚集度要高于以种子繁殖的一年生植物;在空间上,洲滩植物种沿水分梯度呈现有规律的分布,与湿地土壤的沉积类型也有一定关系;湿地植物的克隆繁殖特性和对水分梯度的依赖性是种群分布格局形成的主要原因。
- 鄱阳湖鲌属(Culter)和原鲌属(Culterichthys)鱼类体重与体维关系
- 作者： 张小谷 熊邦喜 来源：湖泊科学 年份：2007 文献类型 ：期刊 关键词： 体重 鲌属 鄱阳湖 体维 原鲌属
- 描述：实测和回归分析鄱阳湖鲌属(Culter)的翘嘴鲌(C.alburnus)、蒙古鲌(C. mongolicus)、达氏鲌(C.dabryi)和原鲌属(Culterichthys)的红鳍原鲌(C. erythropterus)体重与体维关系.结果表明,多元回归方程能全面地反映不同体维对鱼类体重的影响,体重与体侧面积体厚的回归方程较适宜.其体重(W)与体侧面积(A)及体厚(T)的幂函数关系式分别是,翘嘴鲌:W=4.05051×10-3A0.66260T1.41994;蒙古鲌:W=3.18603×10-3A0.66845 T1.44376;达氏鲌:W=1.99310×10-3A0.70982T1.47305;红鳍原鲌:W=3.58823×10-3A0.63253T1.49465.
- 全文：实测和回归分析鄱阳湖鲌属(Culter)的翘嘴鲌(C.alburnus)、蒙古鲌(C. mongolicus)、达氏鲌(C.dabryi)和原鲌属(Culterichthys)的红鳍原鲌(C. erythropterus)体重与体维关系.结果表明,多元回归方程能全面地反映不同体维对鱼类体重的影响,体重与体侧面积体厚的回归方程较适宜.其体重(W)与体侧面积(A)及体厚(T)的幂函数关系式分别是,翘嘴鲌:W=4.05051×10-3A0.66260T1.41994;蒙古鲌:W=3.18603×10-3A0.66845 T1.44376;达氏鲌:W=1.99310×10-3A0.70982T1.47305;红鳍原鲌:W=3.58823×10-3A0.63253T1.49465.
- 鄱阳湖流域生态系统水源涵养量估算
- 作者： 杨帆 来源：内蒙古师范大学 年份：2016 文献类型 ：学位论文 关键词： LAI反演 统计模型 Landsat8 PROSAIL模型 OLI
- 描述：,对植被气候关系、全球气候变化研究等具有重要意义。内蒙古草原属于代表性温带草原生态类型,在温带草原中具有代表性。本研究选取Landsat8-OLI数据为基础数据,对内蒙古草原LAI采用统计模型
- 全文：,对植被气候关系、全球气候变化研究等具有重要意义。内蒙古草原属于代表性温带草原生态类型,在温带草原中具有代表性。本研究选取Landsat8-OLI数据为基础数据,对内蒙古草原LAI采用统计模型