Identification and Validation of Reference Sites in the Andhi Khola River,Nepal

作     者：Praveen SHARMA Subodh SHARMA Smriti GURUNG Praveen SHARMA;Subodh SHARMA;Smriti GURUNG

作者机构：加德满都大学理学院环境科学与工程系 加德满都大学理学院水生生态学中心 

出 版 物：《Journal of Resources and Ecology》 (资源与生态学报（英文版）)

年 卷 期：2015年第6卷第1期

页      面：30-36页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 0713[理学-生态学] 

基　　金：funded by the Kathmandu University Nepal and the Royal Norwegian Government(FFDN-NPL 100062) 

主　　题：reference macro-invertebrates dams indices validation 

摘      要：Reference conditions having no or only minor anthropogenic disturbances, are a basic requirement for ecological studies in rivers. To study ecological impact of a dam, two sites were pre-classiifed as reference or least disturbed in the Andhi Khola River, Nepal, using Rapid Field Bioscreening （RFB） protocol. Biological （macroinvertebrates） and physico-chemical samples were collected in the month of January and February 2013. Multi-habitat sampling （MHS） was employed in sample collection of macro-invertebrates fauna. Validation of the pre-classiifed sites was done using several indices viz. Nepalese biotic score （NEPBIOS）, Biological monitoring working party （BMWP）, Hindu-Kush Himalayan biotic score （HKHBIOS）, Hilsenhoff （HILSENHOFF） ＆ National Sanitation Foundation Water Quality Index （NSFWQI）. The NEPBIOS, HKHBIOS, HILSENHOFF, RFB ＆ NSFWQI indices predicted the river quality at al two sites as good with quality class Ⅱ. Only BMWP/ASPT water quality index predicted the river quality at al two sites as Excelent with quality class Ⅰ. Hence preselected sites with quality of rank Ⅱ i.e. good qualities were validated as reference sites. The study demonstrated that the multi-metric approach is suitable for application in the monitoring and assessment of rivers where dams are built to produce hydropower.