检索结果相关分组
- 鄱阳湖湿地虉草的生态适应性研究
- 作者： 章泉 来源：南昌大学 年份：2012 文献类型 ：学位论文 关键词： 虉草 生态适应 鄱阳湖 水分逆境
- 描述：分布调查、生长动态的测定、茎段栽培与种子萌发试验、营养器官的解剖结构、模拟水分胁迫试验来探索虉草对鄱阳湖湿地环境的适应。得出主要结果如下：1.虉草主要分布在8.5-13米高程范围内,喜生长在人为干扰较少
- 全文：分布调查、生长动态的测定、茎段栽培与种子萌发试验、营养器官的解剖结构、模拟水分胁迫试验来探索虉草对鄱阳湖湿地环境的适应。得出主要结果如下：1.虉草主要分布在8.5-13米高程范围内,喜生长在人为干扰较少
- 鄱阳湖湿地虉草的生态适应性研究
- 作者： 章泉 来源：南昌大学 年份：2012 文献类型 ：学位论文 关键词： 虉草 生态适应 鄱阳湖 水分逆境
- 描述：分布调查、生长动态的测定、茎段栽培与种子萌发试验、营养器官的解剖结构、模拟水分胁迫试验来探索虉草对鄱阳湖湿地环境的适应。得出主要结果如下：1.虉草主要分布在8.5-13米高程范围内,喜生长在人为干扰较少
- 全文：分布调查、生长动态的测定、茎段栽培与种子萌发试验、营养器官的解剖结构、模拟水分胁迫试验来探索虉草对鄱阳湖湿地环境的适应。得出主要结果如下：1.虉草主要分布在8.5-13米高程范围内,喜生长在人为干扰较少
- 鄱阳湖湿地虉草的生态适应性研究
- 作者： 章泉 来源：南昌大学 年份：2012 文献类型 ：学位论文 关键词： 虉草 生态适应 鄱阳湖 水分逆境
- 描述：分布调查、生长动态的测定、茎段栽培与种子萌发试验、营养器官的解剖结构、模拟水分胁迫试验来探索虉草对鄱阳湖湿地环境的适应。得出主要结果如下：1.虉草主要分布在8.5-13米高程范围内,喜生长在人为干扰较少
- 全文：分布调查、生长动态的测定、茎段栽培与种子萌发试验、营养器官的解剖结构、模拟水分胁迫试验来探索虉草对鄱阳湖湿地环境的适应。得出主要结果如下：1.虉草主要分布在8.5-13米高程范围内,喜生长在人为干扰较少
- 鄱阳湖生态系统长期变化对气候——人为环境的响应研究
- 作者： 郭娅 来源：中国科学院大学 年份：2016 文献类型 ：学位论文
- 描述：鄱阳湖生态系统长期变化对气候——人为环境的响应研究
- 鄱阳湖生态系统长期变化对气候——人为环境的响应研究
- 作者： 郭娅 来源：中国科学院大学 年份：2016 文献类型 ：学位论文
- 描述：鄱阳湖生态系统长期变化对气候——人为环境的响应研究
- 鄱阳湖生态系统长期变化对气候——人为环境的响应研究
- 作者： 郭娅 来源：中国科学院大学 年份：2016 文献类型 ：学位论文
- 描述：鄱阳湖生态系统长期变化对气候——人为环境的响应研究
- 鄱阳湖生态系统长期变化对气候——人为环境的响应研究
- 作者： 郭娅 来源：中国科学院大学 年份：2016 文献类型 ：学位论文
- 描述：鄱阳湖生态系统长期变化对气候——人为环境的响应研究
- 鄱阳湖生态系统长期变化对气候——人为环境的响应研究
- 作者： 郭娅 来源：中国科学院大学 年份：2016 文献类型 ：学位论文
- 描述：鄱阳湖生态系统长期变化对气候——人为环境的响应研究
- 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.
- 鄱阳湖生态系统长期变化对气候——人为环境的响应研究
- 作者： 郭娅 来源：中国科学院大学 年份：2016 文献类型 ：学位论文
- 描述：鄱阳湖生态系统长期变化对气候——人为环境的响应研究