This study investigates the microclimatic connections between underground systems and the hibernation sites of particular species of bats. The distribution of hibernating bats was analysed in five selected zones desig...This study investigates the microclimatic connections between underground systems and the hibernation sites of particular species of bats. The distribution of hibernating bats was analysed in five selected zones designated Ⅰ-Ⅴ. These zones have a similar relative humidity, diverse temperature ranges inside the system, as well as air flow rates. A multi-year research programme highlighted the relationships between the occurrence of hibernating bats of various species and the microclimate of these particular zones. What is of essential importance are the sites with an air flow in their zones exceeding 0.02 m·s^-1, then is temperature and humidity. The air flow determines more intensive settling of wintering bats （zones Ⅲ, Ⅳand Ⅴ）. The zone Ⅱ-tourist zone with periodic air flows and often visited by humans is the least used by hibernating bats.展开更多
In this work, we construct a stage-structured single population system with winter hiber- nation and impulsive effect in polluted environment. All solutions of the investigated system are proved to be uniformly ultima...In this work, we construct a stage-structured single population system with winter hiber- nation and impulsive effect in polluted environment. All solutions of the investigated system are proved to be uniformly ultimately bounded. The conditions of the population- extinction solution of the investigated system are obtained. The permanent condition of the investigated system is also obtained. Finally, numerical analysis is inserted to illustrate the results. Our results indicate that the environmental pollution will reduce biological diversity of the natural world. Our results also provide reliable tactic basis for the practical biological resource management.展开更多
Late in 705, newly enthroned emperor of the freshly restored Tang dynasty Zhongzong 中宗 （r. 684, 705-710） went to the southern gate-tower of Luoyang by chariot to observe ＂cold-splashing barbarian plays＂ （pohan ...Late in 705, newly enthroned emperor of the freshly restored Tang dynasty Zhongzong 中宗 （r. 684, 705-710） went to the southern gate-tower of Luoyang by chariot to observe ＂cold-splashing barbarian plays＂ （pohan huxi 泼寒胡戏）. Several months later, a low-ranking minister, Lu Yuantai 吕元泰, drafted a memorial, contending, ＂If governance is proper, cold will follow its proper season. Why is it necessary for naked savages to drum and dance？＂ While the Zhongzong did not cancel the performance of these ＂barbarian plays,＂ Lu Yuantai＇s criticism set in motion a decade-long debate reflecting the rapidly changing discursive terrain of ethnicity, rulership, and religion. This paper will explore the nature of the debates and the surprisingly high stakes surrounding these so-called barbarian plays （huxi 胡戏） in the early eighth century.展开更多
In order to probe the death reason of terminal buds and carry out trunk extension by using lateralbuds, the temperature characteristics of dormancy development of terminal and lateral buds in Paulowniatomentosa p. for...In order to probe the death reason of terminal buds and carry out trunk extension by using lateralbuds, the temperature characteristics of dormancy development of terminal and lateral buds in Paulowniatomentosa p. fortunei 33 were investigated by raising cutting branches on different date at 25 ℃ and 15 ℃.The results were as follows: ①The death reason of terminal buds and the first pair of lateral buds was itselfecological adapting strategy, not the injury of early frost and freezing; ②The lateral buds 2, 3 and 4 hadobtained the feature of winter dormancy, and could survive from cold winter, and widen its possible temperaturerange of sprouting to lower temperature by experiencing winter chilling; ③The lateral buds 2, 3 and 4 couldsprout at the same time in spring, but it was difficult to sprout for other lateral buds; ④The sprouting ofupper lateral buds could restrict the sprouting of lower lateral buds at 25 ℃, but not at 15 ℃.展开更多
文摘This study investigates the microclimatic connections between underground systems and the hibernation sites of particular species of bats. The distribution of hibernating bats was analysed in five selected zones designated Ⅰ-Ⅴ. These zones have a similar relative humidity, diverse temperature ranges inside the system, as well as air flow rates. A multi-year research programme highlighted the relationships between the occurrence of hibernating bats of various species and the microclimate of these particular zones. What is of essential importance are the sites with an air flow in their zones exceeding 0.02 m·s^-1, then is temperature and humidity. The air flow determines more intensive settling of wintering bats （zones Ⅲ, Ⅳand Ⅴ）. The zone Ⅱ-tourist zone with periodic air flows and often visited by humans is the least used by hibernating bats.
基金Acknowledgments The work of the first author was supported by National Natural Science Foundation of China （No. 11361014） and the project of high level creative talents in Guizhou Province （No. 20164035）. This research was supported by National Natural Science Foundation of China （Nos. 11361014, 10961008）, the Science Technology Foundation of Guizhou Education Department （No. 2008038）, and the Science Technology Foundation of Guizhou （No. 2010J2130）.
文摘In this work, we construct a stage-structured single population system with winter hiber- nation and impulsive effect in polluted environment. All solutions of the investigated system are proved to be uniformly ultimately bounded. The conditions of the population- extinction solution of the investigated system are obtained. The permanent condition of the investigated system is also obtained. Finally, numerical analysis is inserted to illustrate the results. Our results indicate that the environmental pollution will reduce biological diversity of the natural world. Our results also provide reliable tactic basis for the practical biological resource management.
文摘Late in 705, newly enthroned emperor of the freshly restored Tang dynasty Zhongzong 中宗 （r. 684, 705-710） went to the southern gate-tower of Luoyang by chariot to observe ＂cold-splashing barbarian plays＂ （pohan huxi 泼寒胡戏）. Several months later, a low-ranking minister, Lu Yuantai 吕元泰, drafted a memorial, contending, ＂If governance is proper, cold will follow its proper season. Why is it necessary for naked savages to drum and dance？＂ While the Zhongzong did not cancel the performance of these ＂barbarian plays,＂ Lu Yuantai＇s criticism set in motion a decade-long debate reflecting the rapidly changing discursive terrain of ethnicity, rulership, and religion. This paper will explore the nature of the debates and the surprisingly high stakes surrounding these so-called barbarian plays （huxi 胡戏） in the early eighth century.
基金Foundation of Research Startup for Returned Student From AbroadScience Foundation of Henan Province forDistiguished Young Scholars(NO.002).
文摘In order to probe the death reason of terminal buds and carry out trunk extension by using lateralbuds, the temperature characteristics of dormancy development of terminal and lateral buds in Paulowniatomentosa p. fortunei 33 were investigated by raising cutting branches on different date at 25 ℃ and 15 ℃.The results were as follows: ①The death reason of terminal buds and the first pair of lateral buds was itselfecological adapting strategy, not the injury of early frost and freezing; ②The lateral buds 2, 3 and 4 hadobtained the feature of winter dormancy, and could survive from cold winter, and widen its possible temperaturerange of sprouting to lower temperature by experiencing winter chilling; ③The lateral buds 2, 3 and 4 couldsprout at the same time in spring, but it was difficult to sprout for other lateral buds; ④The sprouting ofupper lateral buds could restrict the sprouting of lower lateral buds at 25 ℃, but not at 15 ℃.
