1961-2005年新疆地区夏季气温的时空变化特征及其与大气环流的关系

利用1961—2005年新疆地区最为齐全的整编台站观测资料集,分析了新疆地区夏季气温的时空变化特征,并探讨了引起这种时空变化的大气环流因子.结果表明:新疆地区的夏季气温首先表现出整体一致性的变化,在过去的45a中全疆气温持续上升,这与全球变暖的大背景相一致.影响新疆全疆夏季气温变化的主要大气环流因子为贝加尔湖附近高压脊的异常,当其偏强时,新疆地区夏季气温偏高,反之则偏低.新疆地区夏季气温第二类变化模态为南、北两疆反向的特征,这种变化模态主要表现在气温的年际时间尺度上.新疆南、北两疆气温反相变化主要是由伊朗高压和乌拉尔地区高压脊的变化所控制.当这两个大气环流系统在新疆地区造成中高层位势高度南北向正负异常时,新疆地区以天山为界夏季气温表现出反向的变化特征.     

文登市宋村镇农村土地流转探索

随着我国社会的发展和经济体制改革的不断深入,农村土地流转的方式越来越多,范围越来越广。如何在保障农户土地承包经营权的前提下,推进土地承包经营权有序流转,提高农业产业化水平是深化农村改革的一个现实课题和长远目标。该文以宋村镇农村土地承包经营权流转的调查数据为例,分析了土地流转的现状和特点,指出当前存在的矛盾和问题,提出了农村土地流转机制的对策和建议。     

Zonal distribution of the erosion-landslide and soil micromorphological features in purple hilly region

In the purple hilly region, erosions and landslides are all serious, and it is of great scientific value and practical significance to study their formation mechanism and distribution features there.In this paper, soil micromorphological methods and techniques were used to study the erosion zonal distribution in the region. The results indicated: (1)According to erosion process, the spacial distribution zones of the erosions and landslides in the purple hilly region with different solums were divided into scouring erosion zone, transport-diffusion zone, rocks and soil turbulence zone and sediment-bury zone; (2) The soil micromorphologic taxonomic feature identifying different erosion-landslide zone were found by studying the soil micromorphology of erosive zone in purple hilly region; (3) As for the erosion-landslide formation in the region, besides the external factors, the internal factors were found more important and favorable for landslide formation through the studies on the micormorphologieal features of slide soil.     

Development of experimental apparatus about reverse circulation bit

A set of experimental apparatus on reverse circulation bit are developed, in order to lucubrate the mechanism of the new type reverse circulation bits, and the structure of the bits influencing the ability of taking core and carrying powder.Both the major structure of the equipment and the procession of experiment are described.     

Repacking practice for G-3 engineering driller power unit with drive shaft of dual channel reverse circulation

In order to satisfy operating requirements for constant core drilling technology in reverse circulation with hollow-through DTH,the power unit of G-3 engineering driller was ameliorated. The new one with dual channel drive shaft, achieved the perfect assemble with transmission structure of the original power unit. It could interconvert according to need by using two sets of drive shafts with direct and reverse circulation. The repacked G-3 engineering driller carried on experiment in the field test in Luanchuan molybdenum mine of Henan, whose effect was very good.     

辽宁中尺度数值模式产品和T213产品对比检验分析

利用国家级的气象预报产品质量客观检验评价系统,对辽宁中尺度模式预报MM5和T213数值预报的结果分别进行检验分析.检验类型分为历史资料检验和实时资料检验,检验要素包括地面降水、气温和高空500 hPa环流.检验结果显示,对于降水、气温的预报MM5模式预报检验结果优于T213数值预报,而对于500 hPa环流的检验结果T213更可信.     

3-D BAROCLINIC NUMERICAL SIMULATION OF THE SOUTH CHINA SEA I. UPPER CIRCULATION

A three-dimensional baroclinic shelf sea model was employed to simulate the seasonal characteristics of the South China Sea (SCS) upper circulation. The results showed that: in summer, an anticyclonic eddy, after its formation between the Bashi Channel and Dongsha Islands in the northeastern SCS, moves southwestward until it disperses slowly. There exists a northward western boundary current along the east shore of the Indo-China Peninsula in the western SCS and an anticyclonic gyre in the southern SCS. But at the end of summer and beginning of autumn, a weak local cyclonic eddy forms in the Nansha Trough, then grows slowly and moves westward till it becomes a cyclonic gyre in the southern SCS in autumn. At the beginning of winter, there exists a cyclonic gyre in the northern and southern SCS, and there is a southward western boundary current along the east shore of the Indo-China Peninsula. But at the end of winter, an anticyclonic eddy grows and moves toward the western boundary after forming in the Nansha Trough. The eddy‘s movement induces a new opposite sign eddy on its eastern side, while the strength of the southward western boundary current gets weakened. This phenomenon continues till spring and causes eddies in the southern SCS.     

黄金新药源与豫西含金植物

黄金可以入药，历代本草均有记载。但因不溶性金被人体吸收极微，内服有一定毒性，加之其价格昂贵及一些药理学和比较复杂的检测处理与技术加工问题，不能普遍应用。自然界许多动植物都是聚金能手，特别是生长于富金岩石及金矿床风化土壤中的植物含金一般较高，部分动物因以含金植物为食，体内也含一定量的金，并且有些动植物本身就是中药材和食物。据此建议采取一定手段将含金较高、但未达工业品级的岩石，通过生物循环把金聚集至动、植物体内，金与动植物体内蛋白质等有机质结合成金的有机络合物，将此类动植物用于医疗或食疗，既可减小金的毒性，便于人体吸收，又可把未达工业品级的含金岩石利用起来。豫西某构造蚀变岩金矿，其上覆土壤中生长着含金植物，这些植物灰分中含金４×１０－９～９８×１０－９，其中以野苋菜的籽和叶灰分中含金最高（含金７５×１０－９～９８×１０－９），看来在本区用野苋菜籽和叶灰分中金含量进行找矿是可行的     

Zonal Model of Starspots. Application to RS CVn Systems

Model results on starspots in 15 chromospherically active type RS CVn binary systems are presented. The dependences of the parameters of the spots on the principal characteristics of the stars (spectral class, luminosity class, rotation, Rossby number) are examined. Latitudinal drift of the spots, cycles in the spot activity, and differential rotation are found in 9 of the stars. __________ Translated from Astrofizika, Vol. 48, No. 4, pp. 535–552 (November 2005).