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Climate change and finger millet: Perception, trend and impact on yield in different ecological regions in Central Nepal 被引量:2
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作者 Dol Raj LUITEL mohan siwakoti Pramod Kumar JHA 《Journal of Mountain Science》 SCIE CSCD 2019年第4期821-835,共15页
The views of local people on climate change along different ecological regions are relatively unexplored in Nepal. This study was conducted in 13 villages in central Nepal at different altitudes to document the views ... The views of local people on climate change along different ecological regions are relatively unexplored in Nepal. This study was conducted in 13 villages in central Nepal at different altitudes to document the views of small holder farmers and compare their perception with trends of climatic variables, finger millet yield, natural disasters, plant phenology(flowering and fruiting), status of forest and wild life, as well as the spread of diseases and pests. Analysis on the climatic data of stations for 36-41 years between 1975 and 2016 showed significant increases in the minimum temperature in lower tropical climatic region(<500 m), upper tropical to subtropical climatic region(500-2000 m) and temperate climatic region(2000-3000 m) by 0.01, 0.026 and 0.054℃/year, respectively, and an increase of maximum temperature by 0.008, 0.018, and 0.019℃/year, respectively. Rainfall showed a strongly significant decreasing trend in all elevation regions. This result matches with the views of respondents except 38% respondent from temperate climatic region. People from the temperate climatic region also mentioned that current onset of snowfall is delayed but amount of snowfall remained the same. From the documented records, except events of wild fire, frequency of natural disasters events have increased in the recent years, which was in harmony with the views of local people. Multi-linear regression analysis showed that contribution of climatic variables on finger millet yield in lower tropical climatic region and upper tropical to subtropical regions was 23% and 57.3%, respectively, which was supported by increasing trend on average growing degree day(GDD) temperature at the rate of 0.01℃ in upper tropical to subtropical region and 0.007℃ in lower tropical climatic region yearly. Finger millet yield has been increasing at the rate of 7.39 and 36.9 kg/ha yearly in lower tropical climatic region and upper tropical to subtropical climatic region, respectively. This result provides deeper understanding of people's perception of causes and effects of climate change on diverse variables along different elevation and related magnitude which can contribute to policy making in Nepal. 展开更多
关键词 Climate change GROWING degree DAYS (GDD) Natural DISASTER PHENOLOGY Precipitation Small HOLDER FARMERS
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WETLAND TYPES AND ASSOCIATE VEGETATION IN NEPAL:AN OVERVIEW
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作者 mohan siwakoti 《湿地科学》 CSCD 2007年第3期193-200,共8页
Wetland is the transitional zone between the permanently wet and dry environment and shares the charac-teristics of the environment. Wetland is not yet to be classified unambiguously as either aquatic or terrestrial. ... Wetland is the transitional zone between the permanently wet and dry environment and shares the charac-teristics of the environment. Wetland is not yet to be classified unambiguously as either aquatic or terrestrial. However,the Ramsar Convention adopts an extremely broad approach in determining the wetland; as a result, several varieties ofhabitat types are included under the wetland definition. Wetlands are among the world’s most productive ecosystems andprovide a wide variety of goods and services. Nepal lies on the southern slopes of central Himalayas and occupies a totalarea of 147 181 km2between the latitudes 26°22′N and 30°27′N and the longitudes 80°40′E and 88°12′E. The di-verse landscape (60 -8 848 m) and bioclimatic conditions (alpine to tropical) of the country provide a unique niche fordifferent types of wetlands. These are distributed from high altitudinal glacial lakes to hot springs, ponds, ox-bowlakesto river floodplains, marshes and swamps. The country has 15 types of inland freshwater natural wetlands as classified bythe Ramsar Convention. These wetlands house several species of rare and endangered flora and fauna. The present paperattempts to highlight the various types of wetlands in Nepal with associate vegetation. 展开更多
关键词 湿地 类型 植被 尼泊尔
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Peoples’ Perception and Conservation of Dactylorhiza hatagirea (D. Don) Soóin Manaslu Conservation Area, Central Nepal
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作者 Bikram Pandey Arbindra Timilsina +6 位作者 Binita Pandey Chhabi Lal Thapa Kamal Bahadur Nepali Pradeep Neupane Resham Thapa Sunil Kumar Gaire mohan siwakoti 《American Journal of Plant Sciences》 2016年第12期1662-1672,共11页
The present study analyzes the information and perception of the local community of Samagaun VDC, Manaslu Conservation Area Project (MCAP) regarding Dactylorhiza hatagirea (D. Don) Soó (Orchidaceae). We assessed ... The present study analyzes the information and perception of the local community of Samagaun VDC, Manaslu Conservation Area Project (MCAP) regarding Dactylorhiza hatagirea (D. Don) Soó (Orchidaceae). We assessed the local peoples’ perception on its population status, its availability, factors causing its decline and management practices of this terrestrial orchids. A pre-designed questionnaire was used to gather information targeting the age group between 25 and 60 years (n = 75, 45 male and 30 female). Most of the informants (76%) believe that the abundance of this orchid is declining. Over grazing of domestic animals, over harvesting and lack of awareness among the local community were determined to be the major causes of decline of D. hatagirea in the study area. Protection measures as prescribed by the informants were control grazing, raising awareness among the individuals and sustainable harvestings for the long-term conservation of the species. Systematic management plans that incorporate the participation of local individuals and prioritization of their views will be applicable for the proper conservation of the species. 展开更多
关键词 Local Perceptions Conservation and Management ORCHID Dactylorhiza hatagirea Samagaun VDC Manaslu Conservation Area
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