A review of the genus Gynaecoserica Brenske, 1896 (Coleoptera,Scarabaeidae, Sericini)

The present paper gives a review of the species so far assigned to the genus Gynaecoserica Brenske, 1896 Brenske, E. 1896. Insectes du Bengale. Melolonthidae. Ann Soc Entomol Belg., 40: 150–164.  [Google Scholar]. Thirty-two new species are described: Gynaecoserica alma sp. nov., G. amara sp. nov., G. arunachalensis sp. nov., G. barclayi sp. nov., G. bicolorata sp. nov., G. bocaki sp. nov., G. bomdilana sp. nov., G. compacta sp. nov., G. densipunctata sp. nov., G. digna sp. nov., G. dirangensis sp. nov., G. exilis sp. nov., G. gisionensis sp. nov., G. hirsuta sp. nov., G. ignobilis sp. nov., G. jelineki sp. nov., G. keithi sp. nov., G. lobiceps sp. nov., G. lohitensis sp. nov., G. lomsakensis sp. nov., G. lubosi sp. nov., G. luteata sp. nov., G. maekasana sp. nov., G. maymyoensis sp. nov., G. nahangensis sp. nov., G. namtamaiensis sp. nov., G. obliqua sp. nov., G. rostrata sp. nov., G. schima sp. nov., G. seinghkuensis sp. nov., G. vogleri sp. nov. and G. ziyardamensis sp. nov. The genitalia of the new species are figured and the distribution of the species is illustrated. Two new combinations are established: G. marginipes (Brenske, 1896 Brenske, E. 1896. Insectes du Bengale. Melolonthidae. Ann Soc Entomol Belg., 40: 150–164.  [Google Scholar]) comb. nov. and G. felina (Arrow, 1946 Arrow, GJ. 1946. Entomological results from the Swedish expedition 1934 to Burma and British India. Coleoptera, Melolonthidae. Ark Zool., 38A(9): 1–33.  [Google Scholar]) comb. nov.; the lectotype of the latter is designated. In addition to the species diagnoses a key to all so far known Gynaecoserica species is provided.     

西藏湖泊正构脂肪酸分布特征及对古气候重建的启示

 脂肪酸广泛存在于各种地质载体，能够记录母源生存环境的相关信息。但关于脂肪酸的具体来源及分布特征的古气候意义尚不明确，导致脂肪酸相关指标在古气候重建中的应用较少。通过分析西藏干旱-半干旱区跨越3个气候带的湖泊和水洼的表层沉积物中的正构脂肪酸，揭示中、长链及部分短链正构烷脂肪酸的来源与正构烷烃的来源有关，可以相互对比验证。建立了指标与古气候要素的相关关系，发现正构脂肪酸含量、碳优势（CPI）指标随温度升高、降水增多而升高。提出了可用于古气候重建的中链占比（R-FA）指标，R-FA与年均气温和降水量成正比。     

A study on environmental changes based upon cladoceran assemblages from the core sediments in Chen Co,southern Tibet

A consecutive sediment core (CC2) was drilled in Chen Co (lake) of southern Tibet using a PISTON sampler in 1998 AD. Cladoceran remains including their species,amount richness and ecological features are analyzed for the top 117 cm sections of the core, upon which 5 cladoceran assemblages are distinguished. CL0 is an assemblage without any cladocera in the depth between 117-105 cm. CL1 assemblage (depths between I01-77 cm, ca.1407-1533 AD) possesses total 9 cladoceran species that appear in the core,and performs the greatest richness in the whole sequence.This assemblage reflected that there was plenty of exotic cold water and organic debrises inputing to the sedimentary site under the warmer conditions. The lake was wide and shallow that satisfied the big hydrophyte living. Cladoceran species and richnesses of CL2 assemblage (depths between 77-29cm, ca. 1533-1831AD) perform much more decreasing than those of CLI. There was only less Chydorus sphaericus which was acclimatized to wide environmental ranges. This implied that the sedimentary environment is so execrable that most of cladoceran lost their living abilities. Compared with CL1 assemblage, CL3 assemblage (depths between 29-10 cm, ca.1831--1941 AD) possesses nearly the same dominant species but lower richnesses. Especially, the cladoceran preferring organic debris also decrease in their amounts. This meant that the surface vegetation in the drainage basin was still poor though the environment turned to be better. Except the 2 zooplankton species, the other 7 species of cladoceran in this core are found in CL4 assemblage (depths between 10-0cm, ca. 1941-1998 AD), in which the eurythermal species had not performed their competition ability comparing withnarrow-temperatures adapted species. It implied that water temperatures were stable and much more influenced by air temperatures under the shallow-water conditions. The environmental features reflected by cladocera assemblages of CC2 core are fully supported by the evidences from ostracoda assemblages, diatom-salinity transfunction, environmental magnetism and relative proxies of the parallel CC1 core. Cladoceran assemblages in the lake sediments of Tibetan Plateau are sensitive to sedimentary environment and very significant to the studies of environmental changes.     

西藏旅游教育发展及对策研究

2005年西藏自治区国民经济和社会发展统计公报显示,西藏自治区“当年接待国内外旅游者180.06万人次,比上年增长47.2%。其中,接待国内旅游者167.93万人次,比上年增长49.0%;接待海外旅游人数12.13万人次,比上年增长26.6%。全年实现旅游总收入19.35亿元,比上年增长26.3%。实现外汇收入4443万美元,比上年增长21.4%”。与此同时,来藏游客人均为西藏实现旅游收入为1075元。可以说“十五”时期西藏旅游业已进入了一个快速发展的阶段,但也无法否认在青藏铁路,在全面开通的今天,这些数字的发展背后却隐藏着西藏旅游业将进一步面对的现实问题,即旅游人力资源特别是高层次旅游管理人员和外语导游人员的严重不足。为此,文章通过对西藏旅游教育发展的诸多问题分析,提出了西藏旅游教育在“十一五”时期的可持续发展问题。     

近代传媒与中国西藏

在清末新政大的环境里,《西藏白话报》诞生了,它以爱国、尚武、开通民智为宗旨,以西藏官员为主要传播对象,直接地参与了西藏的近代变革。而在内地创办的各种形式的报刊则间接地反映西藏的社会发展。这些报刊关注重大政治变迁、及时报道国家的治藏方略和政策得失,传达国内外关于西藏的信息。本文以《神州日报》、《时报》、《东方杂志》为个案,论述晚清报刊与中国西藏的关系,从而阐明西藏是祖国神圣不可分割的一部分。     

The calcareous nannofossil record and its geological significance in the Jurassic black shales from the Qiangtang Basin, northern Tibetan Plateau

A new record of calcareous nannofossils in Jurassic black shales from the Qiangtang Basin, northern Tibet comprises two series, representing shelf to basin settings. By microscopic observation, the first discovery of the family Watznaueriaceae has been made: Watznaueria fossacincta is distinguished from Watznaueria britannica. From the biostratigraphy and chemostratigraphy, the sediments are characterized by paucity of assemblages, prevalence of coccospheres, and a relatively high organic content. There are two classes of preservation: poorly and moderately preserved assemblages. Total nannofossil abundance and species diversity show lower values within calcareous beds, compared to the argillaceous. Assemblage composition appears quite different in the marls and argillaceous rocks compared with the limestones. Fossil abundance and preservation are partly determined by diagenesis, selective dissolution and sedimentary environment. Dysaerobic or anoxic bottom-water conditions are indicated by coccospheres, with nannofossils the main source of hydrocarbons. The black shale facies with high organic carbon contents can be attributed to coccolithophorid high productivity and blooms, indicating that the Qiangtang black shales have a great oil-generation potential.     

Comparative analysis of temperature and CO2 fluxes for winter wheat in Tibetan Plain and North China Plain using the EMD method

Comparative study of spectral properties of temperature and CO₂ fluxes measured by eddy covariance method at Yucheng (36°57′N, 116°36′E, 28 m a.s.l., in the North China Plain) and at Lhasa (29°41′N, 91°20′E, 3688 m a.s.l., on the Tibetan Plateau) is described using the empirical mode decomposition (EMD) method. The main results are: (1) The intrinsic oscillation modes or intrinsic mode functions (IMFs) were extracted from data of temperature (T) and CO₂ fluxes (F) measured at Yucheng (T₁ and F₁) and Lhasa (T₂ and F₂). (2) Hilbert transform was applied to these IMF components, then the Hilbert-Huang spectra and the marginal spectra of these data were obtained. (3) Comparison of temperature and CO₂ fluxes in North China Plain and on Tibetan Plain illustrated that the characteristic frequencies corresponding to T₁, F₁, T₂ and F₂ are 0.05 Hz, 0.03 Hz, 0.014 Hz and 0.005 Hz, respectively.     

基于情景意识量表和方差分析的高原驾驶人情景意识特征分析

西藏地区的驾驶人是具有显著代表性的高原驾驶人。为了分析高原驾驶人情景意识特征，以西藏驾驶人为例，设计了情景意识量表，基于调查数据探讨了西藏驾驶人情景意识与事故之间的关联性以及西藏驾驶人情景意识的影响因素。研究结果显示：西藏驾驶人情景意识与责任交通事故之间存在显著的负相关，责任交通事故与交通违法行为之间存在显著的正相关。性别、年龄、驾龄、驾驶里程、在西藏的驾驶时间以及驾车里程等指标处于不同水平时，西藏驾驶人的情景意识存在显著差异，且本地驾驶人与非本地驾驶人之间在整体上不存在情景意识差异。研究结果为高原驾驶人交通安全管理及相关研究提供一定的参考价值。     

援藏进程中的西藏自我发展能力提升

提升西藏自我发展能力是西藏发展的必然要求.在推进全国援藏的前提下,正确认识西藏自我发展能力,以西藏发展基础的价值重构为起点,科学规划提升西藏自我发展能力的可行性路径,对于实现西藏的跨越式发展和长治久安具有重要意义.     

论当代藏族诗歌的现代性审美特征——以《前定的念珠》为例

当代西藏汉语诗歌的代表性诗集《前定的念珠》在写作上极具现代性特质,诗人们对雪域空间的自然感受与逃避文明的忧思,结合色彩斑斓的死亡主题、浸润着宗教特征的藏区情感体验,以及借鉴现代性美学的创作观念,表达出特定地域中的空间生存体验和贯彻于传统和现代之间的审美追求。