检索结果相关分组
- 鄱阳湖流域农田重金属污染的生态风险评估
- 作者： 叶嘉敏 余厚平 简敏菲 魏佳瑶 吴敏然 来源：江西师范大学学报(自然科学版) 年份：2016 文献类型 ：期刊 关键词： 重金属污染 生态风险 鄱阳湖 乐安河
- 描述：·kg-1;不同评价方法得出乐安河上游至中游区域土壤中重金属Cu呈极度污染状态,存在严重的生态风险隐患;各样点蔬菜重金属Cd含量均超过《无公害蔬菜安全要求》中规定的标准值(0.050 mg·kg-1
- 全文：·kg-1;不同评价方法得出乐安河上游至中游区域土壤中重金属Cu呈极度污染状态,存在严重的生态风险隐患;各样点蔬菜重金属Cd含量均超过《无公害蔬菜安全要求》中规定的标准值(0.050 mg·kg-1
- 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.
- 水产良种——鄱阳湖一号泥鳅
- 作者： 王海华 原立芳 来源：农村百事通 年份：2016 文献类型 ：期刊 关键词： 每亩产量 子一代 野生苗 体色 生长速度 综合养殖 江西省科技厅 科技成果鉴定 水产科学 水产养殖
- 描述：鄱阳湖一号泥鳅是由江西省东乡县恒佳水产养殖有限公司与江西省水产科学研究所等单位联合选育的一个泥鳅新品种,系大鳞副泥鳅与台湾泥鳅杂交子一代,于2015年7月通过了江西省科技厅组织的科技成果鉴定。鄱阳湖
- 全文：鄱阳湖一号泥鳅是由江西省东乡县恒佳水产养殖有限公司与江西省水产科学研究所等单位联合选育的一个泥鳅新品种,系大鳞副泥鳅与台湾泥鳅杂交子一代,于2015年7月通过了江西省科技厅组织的科技成果鉴定。鄱阳湖
- 鄱阳湖域矿产资源开发生态经济系统SD模型设计与实现
- 作者： 唐鑫 来源：东华理工大学 年份：2016 文献类型 ：学位论文
- 描述：鄱阳湖域矿产资源开发生态经济系统SD模型设计与实现
- 鄱阳湖域矿产资源开发生态经济系统SD模型设计与实现
- 作者： 唐鑫 来源：东华理工大学 年份：2016 文献类型 ：学位论文
- 描述：鄱阳湖域矿产资源开发生态经济系统SD模型设计与实现
- 鄱阳湖域矿产资源开发生态经济系统SD模型设计与实现
- 作者： 唐鑫 来源：东华理工大学 年份：2016 文献类型 ：学位论文
- 描述：鄱阳湖域矿产资源开发生态经济系统SD模型设计与实现
- 环鄱阳湖流域浅层地下水水文地球化学特征研究
- 作者： 杨丽 来源：东华理工大学 年份：2016 文献类型 ：学位论文 关键词： 水化学 平衡状态 存在形态 鄱阳湖流域
- 描述：。本文以红壤土层和稻田土层两种类型土壤浅层地下水特征为出发点,通过样品采集与分析测试,对鄱阳湖流域浅层地下水水文地球化学特征进行研究,获得如下认识:(1)浅层地下水主要是大气降水补给形成。地表水、浅层
- 全文：。本文以红壤土层和稻田土层两种类型土壤浅层地下水特征为出发点,通过样品采集与分析测试,对鄱阳湖流域浅层地下水水文地球化学特征进行研究,获得如下认识:(1)浅层地下水主要是大气降水补给形成。地表水、浅层
- 环鄱阳湖流域浅层地下水水文地球化学特征研究
- 作者： 杨丽 来源：东华理工大学 年份：2016 文献类型 ：学位论文 关键词： 水化学 平衡状态 存在形态 鄱阳湖流域
- 描述：。本文以红壤土层和稻田土层两种类型土壤浅层地下水特征为出发点,通过样品采集与分析测试,对鄱阳湖流域浅层地下水水文地球化学特征进行研究,获得如下认识:(1)浅层地下水主要是大气降水补给形成。地表水、浅层
- 全文：。本文以红壤土层和稻田土层两种类型土壤浅层地下水特征为出发点,通过样品采集与分析测试,对鄱阳湖流域浅层地下水水文地球化学特征进行研究,获得如下认识:(1)浅层地下水主要是大气降水补给形成。地表水、浅层
- 环鄱阳湖流域浅层地下水水文地球化学特征研究
- 作者： 杨丽 来源：东华理工大学 年份：2016 文献类型 ：学位论文 关键词： 水化学 平衡状态 存在形态 鄱阳湖流域
- 描述：。本文以红壤土层和稻田土层两种类型土壤浅层地下水特征为出发点,通过样品采集与分析测试,对鄱阳湖流域浅层地下水水文地球化学特征进行研究,获得如下认识:(1)浅层地下水主要是大气降水补给形成。地表水、浅层
- 全文：。本文以红壤土层和稻田土层两种类型土壤浅层地下水特征为出发点,通过样品采集与分析测试,对鄱阳湖流域浅层地下水水文地球化学特征进行研究,获得如下认识:(1)浅层地下水主要是大气降水补给形成。地表水、浅层
- 鄱阳湖枯水期入湖径流变化特征分析
- 作者： 彭薇 霍军军 许继军 来源：长江科学院院报 年份：2016 文献类型 ：期刊 关键词： Mann 小波分析 Kendall检验法 径流 鄱阳湖 枯水期
- 描述：依据1957—2012年鄱阳湖流域控制水文站的实测资料,运用Mann-Kendall检验法、小波分析方法,对该时段内枯水期入湖径流的趋势及周期变化特征进行分析,分析其变化规律对鄱阳湖水资源合理利用
- 全文：依据1957—2012年鄱阳湖流域控制水文站的实测资料,运用Mann-Kendall检验法、小波分析方法,对该时段内枯水期入湖径流的趋势及周期变化特征进行分析,分析其变化规律对鄱阳湖水资源合理利用