Since the reform and opening-up,economy of mountain areas in China has realized considerable development.However,due to such factors as terrain,traffic,and individual differences,compared with plain and coastal areas,...Since the reform and opening-up,economy of mountain areas in China has realized considerable development.However,due to such factors as terrain,traffic,and individual differences,compared with plain and coastal areas,mountain areas still lag far behind.In recent years,informationization construction of China develops rapidly,but it nearly stagnates in mountain rural areas.Information has become an essential factor restricting economic development of rural areas.Based on the survey of current information demand of farmers carried out in Pingshan County in Hebei Province in 2010,this study came up with relevant recommendations,in order to speed up development of rural economic in mountain areas,narrow the regional gap,improve living condition of farmers in mountain areas,and increase income level of farmers in mountain areas.展开更多
Under the implementation of principal functional zoning,further promotion of western development,regional migration,new countryside construction,global warming and so on,the spatial adjustment of regional industry and...Under the implementation of principal functional zoning,further promotion of western development,regional migration,new countryside construction,global warming and so on,the spatial adjustment of regional industry and its structure must be enforced.The spatial adjustment and arrangement of population and economy in the mountainous areas of southern Ningxia could create tremendous opportunity for its eco-environment conservation.Based on analysis on the opportunity and challenge of eco-environment conservation in the mountainous areas of southern Ningxia,some countermeasures of eco-environment conservation were discussed in the paper,so as to provide some theoretical references for the eco-environment conservation in the mountainous areas of southern Ningxia.展开更多
The purpose of this study is to determine the size of air temperature changes with altitude in the mountains of the arid zone, on the example of the Upper Dades valley(High Atlas, Morocco). The air temperature change ...The purpose of this study is to determine the size of air temperature changes with altitude in the mountains of the arid zone, on the example of the Upper Dades valley(High Atlas, Morocco). The air temperature change with altitude was determined on the basis of 5 years data from three meteorological stations. The analysis was carried out on an annual and seasonal basis. The annual and daily variations of thermal gradients between pairs of stations were also determined. It was found that the average thermal gradient in the Upper Dades valley was-1.02℃ per 100 m. The highest values of the thermal gradient occur in winter and the lowest in summer. In winter,the thermal gradient was characterized by the greatest variability. Minima of the daily variation of air temperature gradients were observed in early morning hours and maxima around midday. In the lower part of the valley, air temperature inversion frequently developed between 10 AM and 3 PM UTC.The obtained results show high thermal gradients in the mountains of the arid zone, with their annual amplitude increasing in the lower parts of the valley.The instantaneous values of the gradients were significantly modified by the supply of latent heat and the occurrence of dust storms. It has been shown that the advection factor plays an important role in shaping large gradient values. The study contains novel results of thermal gradient measurements in high mountains of arid zone.展开更多
The Tianmushan Mountain, running SW-NE, is situated along the Anhui-Zhejiang and Anhui-Jiangsu provincial borders. The main peaks such as Mt. East Tianmushan, Mr. West Tianmushan and Mt. Qingliang (1787m a.s.l.) are a...The Tianmushan Mountain, running SW-NE, is situated along the Anhui-Zhejiang and Anhui-Jiangsu provincial borders. The main peaks such as Mt. East Tianmushan, Mr. West Tianmushan and Mt. Qingliang (1787m a.s.l.) are all higher than 1500 m a.s.l. The mountain range, acted by orogeny and the Quatèrnary glaciation, became the展开更多
文摘Since the reform and opening-up,economy of mountain areas in China has realized considerable development.However,due to such factors as terrain,traffic,and individual differences,compared with plain and coastal areas,mountain areas still lag far behind.In recent years,informationization construction of China develops rapidly,but it nearly stagnates in mountain rural areas.Information has become an essential factor restricting economic development of rural areas.Based on the survey of current information demand of farmers carried out in Pingshan County in Hebei Province in 2010,this study came up with relevant recommendations,in order to speed up development of rural economic in mountain areas,narrow the regional gap,improve living condition of farmers in mountain areas,and increase income level of farmers in mountain areas.
基金Supported by National Natural Science Foundation of China (40801008)Scientific Research Project of North China University of Nationalities (2009Y014)
文摘Under the implementation of principal functional zoning,further promotion of western development,regional migration,new countryside construction,global warming and so on,the spatial adjustment of regional industry and its structure must be enforced.The spatial adjustment and arrangement of population and economy in the mountainous areas of southern Ningxia could create tremendous opportunity for its eco-environment conservation.Based on analysis on the opportunity and challenge of eco-environment conservation in the mountainous areas of southern Ningxia,some countermeasures of eco-environment conservation were discussed in the paper,so as to provide some theoretical references for the eco-environment conservation in the mountainous areas of southern Ningxia.
基金in part financed by the National Science Centre,Poland,project no.UMO2011/01/B/ST10/07295。
文摘The purpose of this study is to determine the size of air temperature changes with altitude in the mountains of the arid zone, on the example of the Upper Dades valley(High Atlas, Morocco). The air temperature change with altitude was determined on the basis of 5 years data from three meteorological stations. The analysis was carried out on an annual and seasonal basis. The annual and daily variations of thermal gradients between pairs of stations were also determined. It was found that the average thermal gradient in the Upper Dades valley was-1.02℃ per 100 m. The highest values of the thermal gradient occur in winter and the lowest in summer. In winter,the thermal gradient was characterized by the greatest variability. Minima of the daily variation of air temperature gradients were observed in early morning hours and maxima around midday. In the lower part of the valley, air temperature inversion frequently developed between 10 AM and 3 PM UTC.The obtained results show high thermal gradients in the mountains of the arid zone, with their annual amplitude increasing in the lower parts of the valley.The instantaneous values of the gradients were significantly modified by the supply of latent heat and the occurrence of dust storms. It has been shown that the advection factor plays an important role in shaping large gradient values. The study contains novel results of thermal gradient measurements in high mountains of arid zone.
文摘The Tianmushan Mountain, running SW-NE, is situated along the Anhui-Zhejiang and Anhui-Jiangsu provincial borders. The main peaks such as Mt. East Tianmushan, Mr. West Tianmushan and Mt. Qingliang (1787m a.s.l.) are all higher than 1500 m a.s.l. The mountain range, acted by orogeny and the Quatèrnary glaciation, became the
