检索结果-南通市图书馆

Physico-Chemical Parameters of High-Altitude Rivers in the Sagarmatha (Everest) National Park, Nepal

Journal of Water Resource and Protection 2013年第8期5卷 761-767页

作者： narayan prasad ghimire Pramod Kumar Jha Gianumberto Caravello Central Department of Botany Tribhuvan University Kathmandu Nepal Department of Environment Health and Hygiene Padova University Padova Italy

The aim of this research was to analyse physical and chemical characteristics of high altitude rivers of the Sagarmatha National Park, Khumbu region. The study was conducted for three years from 2008 to 2010 in the elevation 1900 m to 5300 m of the park. The study develops a database for monitoring high land rivers of Nepal. The river water quality in general still stands good in terms of standards for drinking water (WHO, Nepal standard) but degradation process has started. Certain changes in water quality parameters in water bodies on the major tourist treks have been recorded, mainly due to anthropogenic activities, particularly tourists and waste disposal. Total nitrogen in water samples is lower than the WHO standard but an increase in the nitrate nitrogen has been recorded comparison between 2008, 2009 and 2010 as well as when compared with earlier reports. Similarly total phosphorous value was also found increased annually as well as earlier reports. It is urgent need to check further degradation of river water quality. The outcomes of this research work would be a useful tool to manage the river water ecosystem in Sagarmatha National Park and Buffer Zone.

关键词： Physico-Chemical Characteristics High Altitude Water Quality

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Water Quality of High-Altitude Lakes in the Sagarmatha (Everest) National Park, Nepal

引用

Journal of Environmental Protection 2013年第7期4卷 22-28页

The aim of this research was to analyze physical and chemical characteristics of high altitude lakes (Gokyo lake series, Imja lake, Pyramid lake) of the Sagarmatha National Park, Khumbu region located above 4500 m altitude. The lake water was studied for three years (2008, 2009 and 2010) to compare the annual changes in the parameters. The findings created a database for present status of high land lakes of Nepal, which can be used for the management of lakes as well as to study the impact of tourism on water quality. The lake water quality in general still stands good in terms of standards for drinking water (WHO, Nepal standard) but degradation process has started. Total nitrogen in water samples was lower than the WHO standard but an increase in the nitrate nitrogen has been recorded. Similarly, total phosphorrous quality was also found increased.

关键词： Physico-Chemical Characteristics Water Quality Tourism High Altitudinal Lake

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Metals Assessments in the Water Bodies of Sagarmatha National Park and Buffer Zone, Nepal

引用

Journal of Water Resource and Protection 2014年第2期6卷 68-74页

作者： narayan prasad ghimire Bharat Babu Shrestha Pramod Kumar Jha Gianumberto Caravello Central Department of Botany Tribhuvan University Kathmandu Nepal Department of Environment health and hygiene Padova University Padova Italy

Sagarmatha (Mt. Everest) National Park (SNP) of Nepal is a popular international eco-touristic destination. In the last few years, tourist flow has increased tremendously generating anthropogenic pressure on natural environment. Generation of huge solid waste, open defecation and poor septic tank condition of toilets have been considered as the major sources of pollution to water bodies in the area. Heavy metals, such as cadmium, copper, lead, chromium and mercury, are important environmental pollutants, particularly in areas with high anthropogenic pressure. Their presence in the atmosphere, soil and water, even in traces can cause serious problems to all organisms, and heavy metal bioaccumulation in the food chain especially can be highly dangerous to human health. Heavy metals (Cu, Pb, Mn, Fe and Zn) and metals (Na, Mg) were analyzed. Thirty nine (13 samples in each year) water samples were collected from river and springs to assess the water quality in the SNP and its buffer zone. Water quality in the SNP has been found degraded in terms of heavy metals;particularly Na and Mg contents were found higher when compared with the earlier report. Iron content in 46% samples was found more than WHO and Nepalese standard for drinking water. The river water quality in general still stands good in terms of standard for drinking water (WHO, Nepal standard) however degradation process has accelerated.

关键词： Water Quality Solid Waste Tourism Open Defecation Anthropogenic Pressure Poor Septic Tank

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：