[ Objective] The research aimed to study climatic change in Qinghai -Tibet Plateau and the surrounding areas from 1880 to 2011. [ Method] Based on GISS temperature grid data, by using change rules of the annual and mo...[ Objective] The research aimed to study climatic change in Qinghai -Tibet Plateau and the surrounding areas from 1880 to 2011. [ Method] Based on GISS temperature grid data, by using change rules of the annual and monthly anomaly temperatures, sliding t-test and wavelet analysis, periodicity and tendency of the atmospheric temperature change in Qinghai -Tibet Plateau and the surrounding areas were analyzed. [ Re- sult] Both annual and monthly anomaly temperatures in Qinghai -Tibet Plateau in recent 130 years presented rise tendency. Since the 1990s, tem- perature rose evidently, and it presented temperature-rise tendency of winter 〉 autumn 〉 spring 〉 summer. Rise velocity of the temperature had spatial difference. Rise velocity of the temperature in west Inner Mongolia was the highest, followed by west Sichuan and east Tibet. Rise velocity of the temperature in some areas of Xinjiang was the slowest. Abrupt change of the temperature happened in the 1930s, and main period of the wavelet analysis was 10 years. [ Conclusion] The research could lay foundation for discussinq Qlobal climate change.展开更多
According to 4 aspects, including effect of plateau climate and environment on human health, epidemic characteristics of natural focal disease on Qinghai-Tibet plateau, supplying condition of drinking water resources ...According to 4 aspects, including effect of plateau climate and environment on human health, epidemic characteristics of natural focal disease on Qinghai-Tibet plateau, supplying condition of drinking water resources and managing mode of Qinghai-Tibet railway operation, this paper does research on main facing problems of hygienic support work during Qinghai-Tibet railway operation. It also represents if hygienic support work needs to reach zero death object, it must follow up the overall thinking that people oriented, management centric, equipment as base and environment as condition. It makes design of stratification and structure of hygienic support system, and makes a detailed discussion of mutual dependent relations, status and effect of each factor existed in stratification and structure. It discusses the key technologies and presents suggestions. The key technologies include checkup appraisal mode used for plateau traveling staffs to ensure the hygienic support system go on wheels, the scheme of pressure oxygen supplying and new wind rate exchange for plateau passenger trains, information transport system used for Qinghai-Tibet railway hygienic support, and medical rescue preparatory scheme for accidental accidents [1-3] .展开更多
To prevent the occupational altitude disease and other occupational disease during construction, occupational health surveillance system is established used for the Qinghai-Tibet railway construction. This system is c...To prevent the occupational altitude disease and other occupational disease during construction, occupational health surveillance system is established used for the Qinghai-Tibet railway construction. This system is composed of three parts, labor environment monitoring system, occupational disease monitoring system and information managing system for health surveillance. The objective disease of surveillance is altitude disease, pneumoconiosis, occupational poisoning, ultraviolet radiation damage and occupational hearing damage. The surveillance period is 3 month. In addition, two systems, including information managing system and evaluation reporting system used for health surveillance, and a computer information managing software of health surveillance used during Qinghai-Tibet railway construction is developed. The computer managing software has three main functions, basic database, statistics database and output of evaluating report.展开更多
利用2001—2020年分辨率1 km MODIS归一化植被指数(NDVI)产品探讨青藏高原生长季植被的时空变化特征及规律。研究发现青藏高原生长季植被NDVI在空间上具有异质性,其数值从东南向西北逐渐递减,多年均值为0.14;近20 a来NDVI的稳定生长区...利用2001—2020年分辨率1 km MODIS归一化植被指数(NDVI)产品探讨青藏高原生长季植被的时空变化特征及规律。研究发现青藏高原生长季植被NDVI在空间上具有异质性,其数值从东南向西北逐渐递减,多年均值为0.14;近20 a来NDVI的稳定生长区和改善区面积达到94%,青藏高原整体呈现出变绿趋势;NDVI与海拔呈负相关关系,平均海拔每升高1000 m,NDVI下降0.09。研究结果为保护青藏高原生态系统等方面提供一定的科学参考。展开更多
文摘[ Objective] The research aimed to study climatic change in Qinghai -Tibet Plateau and the surrounding areas from 1880 to 2011. [ Method] Based on GISS temperature grid data, by using change rules of the annual and monthly anomaly temperatures, sliding t-test and wavelet analysis, periodicity and tendency of the atmospheric temperature change in Qinghai -Tibet Plateau and the surrounding areas were analyzed. [ Re- sult] Both annual and monthly anomaly temperatures in Qinghai -Tibet Plateau in recent 130 years presented rise tendency. Since the 1990s, tem- perature rose evidently, and it presented temperature-rise tendency of winter 〉 autumn 〉 spring 〉 summer. Rise velocity of the temperature had spatial difference. Rise velocity of the temperature in west Inner Mongolia was the highest, followed by west Sichuan and east Tibet. Rise velocity of the temperature in some areas of Xinjiang was the slowest. Abrupt change of the temperature happened in the 1930s, and main period of the wavelet analysis was 10 years. [ Conclusion] The research could lay foundation for discussinq Qlobal climate change.
文摘According to 4 aspects, including effect of plateau climate and environment on human health, epidemic characteristics of natural focal disease on Qinghai-Tibet plateau, supplying condition of drinking water resources and managing mode of Qinghai-Tibet railway operation, this paper does research on main facing problems of hygienic support work during Qinghai-Tibet railway operation. It also represents if hygienic support work needs to reach zero death object, it must follow up the overall thinking that people oriented, management centric, equipment as base and environment as condition. It makes design of stratification and structure of hygienic support system, and makes a detailed discussion of mutual dependent relations, status and effect of each factor existed in stratification and structure. It discusses the key technologies and presents suggestions. The key technologies include checkup appraisal mode used for plateau traveling staffs to ensure the hygienic support system go on wheels, the scheme of pressure oxygen supplying and new wind rate exchange for plateau passenger trains, information transport system used for Qinghai-Tibet railway hygienic support, and medical rescue preparatory scheme for accidental accidents [1-3] .
文摘To prevent the occupational altitude disease and other occupational disease during construction, occupational health surveillance system is established used for the Qinghai-Tibet railway construction. This system is composed of three parts, labor environment monitoring system, occupational disease monitoring system and information managing system for health surveillance. The objective disease of surveillance is altitude disease, pneumoconiosis, occupational poisoning, ultraviolet radiation damage and occupational hearing damage. The surveillance period is 3 month. In addition, two systems, including information managing system and evaluation reporting system used for health surveillance, and a computer information managing software of health surveillance used during Qinghai-Tibet railway construction is developed. The computer managing software has three main functions, basic database, statistics database and output of evaluating report.
文摘利用2001—2020年分辨率1 km MODIS归一化植被指数(NDVI)产品探讨青藏高原生长季植被的时空变化特征及规律。研究发现青藏高原生长季植被NDVI在空间上具有异质性,其数值从东南向西北逐渐递减,多年均值为0.14;近20 a来NDVI的稳定生长区和改善区面积达到94%,青藏高原整体呈现出变绿趋势;NDVI与海拔呈负相关关系,平均海拔每升高1000 m,NDVI下降0.09。研究结果为保护青藏高原生态系统等方面提供一定的科学参考。
