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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:,选取不同草原类型最优反演模型,得到不同草原类型LAI空间分布图。研究主要得到以下结论:1)建立多种植被指数与地面实测LAI值的相关关系,选择了与LAI相关关系最好的MSAVI植被指数用于建立统计模型
全文:,选取不同草原类型最优反演模型,得到不同草原类型LAI空间分布图。研究主要得到以下结论:1)建立多种植被指数与地面实测LAI值的相关关系,选择了与LAI相关关系最好的MSAVI植被指数用于建立统计模型
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:,选取不同草原类型最优反演模型,得到不同草原类型LAI空间分布图。研究主要得到以下结论:1)建立多种植被指数与地面实测LAI值的相关关系,选择了与LAI相关关系最好的MSAVI植被指数用于建立统计模型
全文:,选取不同草原类型最优反演模型,得到不同草原类型LAI空间分布图。研究主要得到以下结论:1)建立多种植被指数与地面实测LAI值的相关关系,选择了与LAI相关关系最好的MSAVI植被指数用于建立统计模型
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:,选取不同草原类型最优反演模型,得到不同草原类型LAI空间分布图。研究主要得到以下结论:1)建立多种植被指数与地面实测LAI值的相关关系,选择了与LAI相关关系最好的MSAVI植被指数用于建立统计模型
全文:,选取不同草原类型最优反演模型,得到不同草原类型LAI空间分布图。研究主要得到以下结论:1)建立多种植被指数与地面实测LAI值的相关关系,选择了与LAI相关关系最好的MSAVI植被指数用于建立统计模型
环鄱阳湖城市群生产性服务业发展模式分析
作者: 席元凯  来源:商业经济研究 年份:2016 文献类型 :期刊 关键词: 生产性服务业  发展模式选择  环鄱阳湖城市群  定量分析 
描述:本文通过分析近年来欧美发达国家大力提倡振兴工业,重点发展生产性服务业,指出探讨环鄱阳湖城市群生产性服务业发展模式的必要性。同时,利用工具eviews6.0定量分析影响生产性服务业发展的因素,进而指出发展环鄱阳湖城市群的模式宜采取“一核三带”模式、“两业”互动模式和“互联网+”模式,以供类似江西这种欠发达地区的生产性服务业发展参考。
全文:本文通过分析近年来欧美发达国家大力提倡振兴工业,重点发展生产性服务业,指出探讨环鄱阳湖城市群生产性服务业发展模式的必要性。同时,利用工具eviews6.0定量分析影响生产性服务业发展的因素,进而指出发展环鄱阳湖城市群的模式宜采取“一核三带”模式、“两业”互动模式和“互联网+”模式,以供类似江西这种欠发达地区的生产性服务业发展参考。
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.
MERIS影像水环境遥感大气校正算法评价——以鄱阳湖叶绿素a浓度反演为例
作者: 曾群 张海东 陈晓玲 田礼乔 李文凯 王国良  来源:湖泊科学 年份:2016 文献类型 :期刊 关键词: QUAC  BEAM  水色遥感  大气校正  鄱阳湖  MERIS  FLAASH  叶绿素a  6S 
描述:MERIS是2002年发射的在轨运行近10年的ENVISAT-1卫星上搭载的主要传感器之一,在波段设置和辐射灵敏度等方面有非常突出的优势,能够较好地运用于Ⅱ类水体叶绿素a浓度反演,但Ⅱ类水体的大气
全文:MERIS是2002年发射的在轨运行近10年的ENVISAT-1卫星上搭载的主要传感器之一,在波段设置和辐射灵敏度等方面有非常突出的优势,能够较好地运用于Ⅱ类水体叶绿素a浓度反演,但Ⅱ类水体的大气
高原湖泊和平原湖泊遥感动态监测的对比分析——以洱海和鄱阳湖为例
作者: 王琳 赵志芳  来源:湿地科学与管理 年份:2016 文献类型 :期刊 关键词: 高原湖泊  遥感动态监测  平原湖泊  鄱阳湖  洱海  湖泊信息提取 
描述:湖泊及其动态变化在区域生态环境保护中占据极其重要的作用,监测并对比分析不同类型的湖泊动态变化对区域生态环境保护意义重大。应用Landsat TM 遥感数据,基于ENVI遥感图像处理软件和ArcGIS空间分析软件,分别以洱海和潘阳湖为例,利用单波段阈值法、波段组合法等方法提取了湖泊水体现状信息;通过波段运算、波段替换等方法提取了湖泊的动态变化信息;对比分析了高原湖泊和平原湖泊两类湖泊动态变化信息提取监测效果。研究表明:应用波段组合法提取湖泊水体信息有较高的准确度,而缨帽变换法提取湖泊水体信息准确度偏低;受湖泊界限标准不统一、季节性水域变化,湖泊周边地理环境等影响,平原湖泊水体分布状况较高原湖泊水体分布状况复杂,多种遥感图像处理方法结合使用更适用于平原湖泊遥感动态监测。
全文:湖泊及其动态变化在区域生态环境保护中占据极其重要的作用,监测并对比分析不同类型的湖泊动态变化对区域生态环境保护意义重大。应用Landsat TM 遥感数据,基于ENVI遥感图像处理软件和ArcGIS空间分析软件,分别以洱海和潘阳湖为例,利用单波段阈值法、波段组合法等方法提取了湖泊水体现状信息;通过波段运算、波段替换等方法提取了湖泊的动态变化信息;对比分析了高原湖泊和平原湖泊两类湖泊动态变化信息提取监测效果。研究表明:应用波段组合法提取湖泊水体信息有较高的准确度,而缨帽变换法提取湖泊水体信息准确度偏低;受湖泊界限标准不统一、季节性水域变化,湖泊周边地理环境等影响,平原湖泊水体分布状况较高原湖泊水体分布状况复杂,多种遥感图像处理方法结合使用更适用于平原湖泊遥感动态监测。
基于能值的鄱阳湖生态经济区耕地利用集约度时空差异分析
作者: 谢花林 何亚芬 邹金浪 吴群  来源:Journal of Geographical Sciences 年份:2016 文献类型 :期刊 关键词: 鄱阳湖生态  cultivated  eastern  proportion  agricultural  pesticide  county  counties  fertilizer  moderate 
描述: Zone from 2000 to 2010. The results are obtained as follows:(1) Over a period of 10 years
全文: Zone from 2000 to 2010. The results are obtained as follows:(1) Over a period of 10 years
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