[ Objective] The research aimed to study climatic change trend in Xingtai City in recent 57 years. [ Method ] Based on climate data （ rain- fall, temperature, sunshine, relative humidity and ground temperature, etc. ...[ Objective] The research aimed to study climatic change trend in Xingtai City in recent 57 years. [ Method ] Based on climate data （ rain- fall, temperature, sunshine, relative humidity and ground temperature, etc. ） in Xingtai City during 1954 -2010, the climatic change trend in Xingtai City in recent 57 years was analyzed by using line chart, trend chart and climate variability. Moreover, the concrete characteristics of climatic change trend were discussed. [ Result] The annual rainfall in Xingtai City in recent 57 years presented obvious decrease trend, and the decrease velocity was 20.952 mrn/10 a. The annual average temperature, annual average maximum temperature and annual average minimum temperature all presented rise trends. The rise speed of minimum temperature was the fastest, and was followed by average temperature. The rise speed of maximum temperature was the slowest. The annual relative humidity decreased at the velocity of 1.460 %/10 a. The ground temperature of 0 cm presented rise trend, but the shallow-layer ground temperatures of 5 -20 cm all presented decline trends. The deep-layer ground temperatures of 0. 8 and 1.6 m both presented weak decline trends. The ground temperature of 3.2 m presented obvious rise trend. The annual total cloud amount in- creased at the velocity of 1.673 into/10 a. The annual sunshine hours decreased at the velocity of 100.600 h/10 a. The annual average and annual minimum atmospheric pressures both presented decline trends. The decline trend of annual minimum atmospheric pressure was very obvious, while the annual maximum atmospheric pressure presented obvious rise trend. [ Conclusion] The research provided theoretical basis for development and utilization of agricultural production resources in Xingtai City.展开更多
文摘[ Objective] The research aimed to study climatic change trend in Xingtai City in recent 57 years. [ Method ] Based on climate data （ rain- fall, temperature, sunshine, relative humidity and ground temperature, etc. ） in Xingtai City during 1954 -2010, the climatic change trend in Xingtai City in recent 57 years was analyzed by using line chart, trend chart and climate variability. Moreover, the concrete characteristics of climatic change trend were discussed. [ Result] The annual rainfall in Xingtai City in recent 57 years presented obvious decrease trend, and the decrease velocity was 20.952 mrn/10 a. The annual average temperature, annual average maximum temperature and annual average minimum temperature all presented rise trends. The rise speed of minimum temperature was the fastest, and was followed by average temperature. The rise speed of maximum temperature was the slowest. The annual relative humidity decreased at the velocity of 1.460 %/10 a. The ground temperature of 0 cm presented rise trend, but the shallow-layer ground temperatures of 5 -20 cm all presented decline trends. The deep-layer ground temperatures of 0. 8 and 1.6 m both presented weak decline trends. The ground temperature of 3.2 m presented obvious rise trend. The annual total cloud amount in- creased at the velocity of 1.673 into/10 a. The annual sunshine hours decreased at the velocity of 100.600 h/10 a. The annual average and annual minimum atmospheric pressures both presented decline trends. The decline trend of annual minimum atmospheric pressure was very obvious, while the annual maximum atmospheric pressure presented obvious rise trend. [ Conclusion] The research provided theoretical basis for development and utilization of agricultural production resources in Xingtai City.
文摘研究红景天苷对高原红细胞增多症(high altitude polycythemia,HAPC)大鼠红细胞膜的蛋白质组学影响,基于蛋白质组学分析结果探讨红景天苷改善HAPC的机制。首先建立HPAC大鼠模型,16只大鼠造模成功后随机分为HAPC模型组和红景天苷100 mg·kg^-1组,每组8只。HAPC模型组灌胃生理盐水,红景天苷组大鼠灌胃给予100 mg·kg^-1的红景天苷,每日1次,连续灌胃40 d后股动脉采血,提取红细胞膜总蛋白,采用双向电泳将总蛋白进行分离;对红景天苷干预前后红细胞膜总蛋白双向电泳图谱进行差异分析,通过质谱技术鉴定具有明显差异的蛋白质,最后利用生物信息学分析生物学功能。结果显示,应用双向电泳法建立了HAPC分辨率较高且重复性较好的大鼠红细胞膜蛋白表达图谱。红景天苷干预红细胞膜双向凝胶电泳(two-dimensional gel electrophoresis,2-DE)图谱中18个蛋白点发生明显变化,其中13个表达上调,5个表达下调;并借助质谱分析成功鉴定了其中8个差异性蛋白。进一步生物信息分析发现这些差异性蛋白参与了氧化应激、氧化还原、过氧化物酶体途径等生物过程,且主要与过氧化物酶体途径和丝裂原活化蛋白激酶(mitogen-activated protein kinase,MAPK)信号通路有关。因此,红景天苷可使HAPC大鼠红细胞膜蛋白表达发生较为明显的改变,借助蛋白质组学技术鉴定了其中8个差异蛋白,发现这些差异性蛋白参与氧化应激、氧化还原、过氧化物酶体途径等生物过程。
