[Objective] The study aimed to analyze the changing characteristics of meteorological elements in Mount Qomolangma Nature Reserve.[Method] Based on the ground observation data of Nyalam and Tingri station in Mount Qom...[Objective] The study aimed to analyze the changing characteristics of meteorological elements in Mount Qomolangma Nature Reserve.[Method] Based on the ground observation data of Nyalam and Tingri station in Mount Qomolangma Nature Reserve,temperature,ground temperature,evaporation,precipitation and snow depth were analyzed.[Result] Annual average temperature of Nyalam and Tingri tended to increase since the 1960s,especially Tingri station.Annual mean ground temperature also increased since observational data was available in 1986,and was more prominent in Nyalam station,with growth rate of 0.9 ℃/10 a during recent 25 years.Average temperature in cold and warm season showed an increasing trend,but average temperature in cold season rose more fastly than that of warm season.There was a regional difference in annual average precipitation and evaporation.That is,annual average precipitation and evaporation of Tingri station enhanced since the early 1980s,but those of Nyalam station decreased slightly since the late 1980s.Annual snow depth in the two stations showed decreasing trend,but the variation of snow depth in Nyalam station was greater,that is,the snow depth increased from the 1960s to the late 1980s,while decreased since the 1990s.[Conclusion] The research could provide scientific references for the protection of ecological environment in Mount Qomolangma Nature Reserve in future.展开更多
文摘[Objective] The study aimed to analyze the changing characteristics of meteorological elements in Mount Qomolangma Nature Reserve.[Method] Based on the ground observation data of Nyalam and Tingri station in Mount Qomolangma Nature Reserve,temperature,ground temperature,evaporation,precipitation and snow depth were analyzed.[Result] Annual average temperature of Nyalam and Tingri tended to increase since the 1960s,especially Tingri station.Annual mean ground temperature also increased since observational data was available in 1986,and was more prominent in Nyalam station,with growth rate of 0.9 ℃/10 a during recent 25 years.Average temperature in cold and warm season showed an increasing trend,but average temperature in cold season rose more fastly than that of warm season.There was a regional difference in annual average precipitation and evaporation.That is,annual average precipitation and evaporation of Tingri station enhanced since the early 1980s,but those of Nyalam station decreased slightly since the late 1980s.Annual snow depth in the two stations showed decreasing trend,but the variation of snow depth in Nyalam station was greater,that is,the snow depth increased from the 1960s to the late 1980s,while decreased since the 1990s.[Conclusion] The research could provide scientific references for the protection of ecological environment in Mount Qomolangma Nature Reserve in future.
