scholarly journals Constructed Wetlands Implementation in Kathmandu Valley, Nepal

Author(s):  
Zuzana Boukalová ◽  
Jan tìŠitel ◽  
Binod Das Gurung
Author(s):  
Antanas DUMBRAUSKAS ◽  
Nijolė BASTIENĖ ◽  
Petras PUNYS

GIS-based approach to find the suitable sites for surface flow constructed wetlands was employed for the Lithuanian river basins with low ecological status. According to the nature of the analysed criteria the flowchart consists of two phases. Criteria used include hydrographical network, soil properties, terrain features, land use, etc. Some of them have strictly defined values (constraints), and other ranges within certain limits (factors). Limited criteria were analysed using rejection principle and influencing factors using proximity analysis and overlay methods. Selecting the potential sites using standard GIS analysis tools there was estimated about 3286 sites for possible wetlands with the mean area of inflow basin about 4 km2 in the basins of water bodies at risk.


2014 ◽  
Vol 13 (10) ◽  
pp. 2517-2523 ◽  
Author(s):  
Jose Villasenor Camacho ◽  
Maria del Carmen Montano Vico ◽  
Manuel Andres ◽  
Rodrigo Rodrigo ◽  
Francisco Jesus Fernandez Morales ◽  
...  

2020 ◽  
Vol 8 ◽  
pp. 109-118
Author(s):  
Bhu Dev Jha

 Emergency Contraceptive Pill (ECP) is used for preventing pregnancy after having unprotected sexual intercourse, contraceptive failure or forced sex. The use of ECP within 120 hours of sexual intercourse could prevent unwanted pregnancy and its adverse effects particularly unintended childbirth and unsafe abortion. The study, therefore, aimed to assess knowledge and use of emergency contraceptives among Bachelors level female students from Kathmandu Valley. A descriptive cross-sectional study was undertaken from August to November 2017 among 347 female students who were studying at the Bachelors's level. A random sampling technique was used to select study participants and a structured self-administered questionnaire was used to assess the knowledge and use of ECP after securing informed consent. Epi data and SPSS version 22 were used for data processing and analysis. The mean age of the female students was 21.5 years. Overall, 91.4% of the respondents had ever heard about emergency contraceptives. The main sources of information were radio or television, the internet and newspapers. About 4.6% of the undergraduate female students used ECP. Age, marital status, use of contraceptives and knowledge of ECP used within 72 hours were significantly associated with use of ECP. Although the findings of this study showed a high prevalence of knowledge among respondents, the improvement of female students’ knowledge on specific details of ECP and its advantages/disadvantages and timely utilization needs to be considered for any future awareness programmes.  


2007 ◽  
Vol 7 ◽  
pp. 113 ◽  
Author(s):  
Raj Man Shrestha

The increase of population in Kathmandu valley is bringing a considerable change in cropping system. Rapid urbanization and introduction of new agriculture technology have encouraged the valley’s farmers to change their cropping patterns from traditional (low value crops) to new crops (high value crops). According to numerous studies made in Nepal, the change is seen considerably in winter crops than in summer crops and the land under cultivation of green leafy vegetables is increasing rapidly in the urban and semi-urban areas. An average growth of population at 3 % in the valley during the period 1951-2001 has resulted in the rapid expansion of area under urban coverage (24.6 % growth per year from 1984 - 2000) has made agriculture land of Katmandu valley to decline per year by 2.04 % (836.27 ha per year). If this trend of decline in agriculture land in Kathmandu valley continues in future too, it is expected that there will be no agriculture land left over by two and half decades in the valley. The planners should take note of this fact that if fertile land of Katmandu valley is to be preserved for agriculture necessary planning is urgently needed. <i>Nepal Journal of Science and Technology</i> Vol. 7, 2006


2020 ◽  
Vol 19 (1) ◽  
pp. 60-68
Author(s):  
Laxmi Joshi Shrestha ◽  
Mohan Devkota ◽  
Bhuvan Keshar Sharma

 The study was conducted in two sacred groves of Kathmandu Valley, Pashupati Sacred Grove, and Bajrabarahi Sacred Grove, aiming to analyze the diversity of tree species and their role in conserving biodiversity. Parallel transects with concentric circular plot survey methods were applied for data collection. During the study, 23 tree species belonging to 22 genera and 15 families were recorded in Pashupati sacred grove, whereas only 19 tree species belonging to 16 genera and 13 families were recorded from Bajrabarahi Sacred Grove. The Shannon-Weiner diversity indices were higher (H=1.91) in Pashupati Sacred Grove compared to Bajrabarahi Sacred Grove, with 1.80 Shanon-Weiner Indices. Three types of forest were recorded from Pashupati Sacred Grove, namely the Schima-Pyrus forest, Myrsine-Persea forest, and Quercus-Myrsine forest, and only one Neolitsiacuipala forest from Bajrabarahi Sacred Grove. The sacred grove is one of the pioneers and community-based management regimes of the forest resource management system. It plays a decisive role in biodiversity conservation as it associated with many taboos and belief systems, thus providing a better opportunity for conservation compared to that of the government management system.


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