川藏铁路新都桥段春夏季鸟类多样性调查与研究

2020年4月至2020年7月,采用样线法并辅以红外相机对川藏铁路新都桥段鸟类多样性进行了调查,共记录到鸟类105种,隶属于13目35科.其中国家Ⅰ级保护鸟类3种;国家Ⅱ级保护鸟类16种;中国特有种15种;被CITES纳入附录I的有3种,纳入附录Ⅱ的有5种.在春夏季,从居留类型上来看,留鸟和夏候鸟占比高达93.33％....     

网湖湿地自然保护区鸟类初步研究

2003年-2004年对湖北阳新网湖湿地自然保护区鸟类资源进行了调查,共记录到鸟类173种,隶属于15目38科．对鸟类的区系组成、居留型及重点保护鸟类进行研究,发现当地有繁殖鸟类104种（夏候鸟42种、留鸟62种）,非繁殖鸟类69种（冬候鸟51种、旅鸟18种）;古北种88种,东洋种62种,广布种23种;国家重点保护野生动物31种（其中,国家Ⅰ级保护动物3种,国家Ⅱ级的有28种）,有湖北省重点保护鸟类47种,被列入《濒危野生动植物种国际贸易公约》的鸟类有30种,被列入《中国濒危动物红皮书》的鸟类有12种．对鸟类的保护提出了存在的问题和建议．     

江西省鸟类多样性研究

为了解江西省的鸟类多样性,本研究依据《中国鸟类分类与分布名录》的分类系统,在前人研究的基础上,结合近年来发现的新记录,对江西的鸟类进行了统计和分析。结果表明江西省有鸟类480种,隶属19目72科。江西省分布有国家重点保护鸟类84种,其中国家Ⅰ级保护鸟类有13种;列入中国濒危动物红皮书的鸟类有52种;列入濒危野生动植物国际贸易公约的鸟类有70种,其中附录Ⅰ10种;中国鸟类特有种13种,无当地特有种。江西省鸟类多样性丰富,特别是候鸟和水禽种类非常多,这可能与江西的地理位置和生态环境有关。     

江西省鸟类多样性研究

为了解江西省的鸟类多样性,本研究依据<中国鸟类分类与分布名录>的分类系统,在前人研究的基础上,结合近年来发现的新记录,对江西的鸟类进行了统计和分析.结果 表明江西省有鸟类480种,隶属19目72科.江西省分布有国家重点保护鸟类84种,其中国家Ⅰ级保护鸟类有13种;列入中国濒危动物红皮书的鸟类有52种;列入濒危野生动植物国际贸易公约的鸟类有70种,其中附录Ⅰ10种;中国鸟类特有种13种,无当地特有种.江西省鸟类多样性丰富,特别是候鸟和水禽种类非常多,这可能与江西的地理位置和生态环境有关.     

木里县鸟类区系研究

报道了木里县鸟类的区系组成、特点以及优势种、常见种和资源鸟类的类型。木里县现有鸟类230种,繁殖鸟类200种,其中古北界种类有78种,东洋界种类有100种,我国特产鸟类有21种,属国家Ⅰ级保护鸟类种,Ⅱ级25种。     

四川东阳沟自然保护区鸟类区系初步调查

2006年2月,5月对东阳沟自然保护区的生物资源进行了综合科学考察,同时结合有关资料,对该地鸟类区系进行研究．结果如下：保护区迄今发现有鸟类14目49科133属247种,属国家Ⅰ级保护鸟类1种,Ⅱ级保护鸟类35种,另外属四川省重点保护的鸟类有2种,属于国家保护有益的或者有重要经济、科学研究价值的鸟类140种,我国特有鸟类13种．区系组成以东洋界成分为主,并出现南北交错的现象．     

四川绵竹县鸟类调查

报道了绵竹县现有鸟类153种,隶属14目36科,其中繁殖鸟类136种（古北界44种,东洋界67种,广布种25种）,非繁殖鸟类17种（冬候鸟9种,旅鸟8种）,属国家Ⅰ级保护鸟类3种,Ⅱ级16种,省级保护鸟类5种。我国特产鸟类14种,另外,对该县鸟类区系组成,特点以及不同生境中鸟类组成,种群数量和种的多样性进行了分析。     

天津地区鸟类市场调查

1999-06-2000-05对天津地区的鸟类市场进行了调查.共记录到鸟类160种,隶属于10目36科,其中野生鸟类154种,占96.25%. 旅鸟70种,占野生鸟类的45.45%.野生鸟类以古北界种类为主,共89种,占57.79%.鸟市上遇见率最大的10种鸟类分别是花头鹦鹉、灰头鹦鹉、绯胸鹦鹉、大紫胸鹦鹉、红嘴相思鸟、画眉、黑喉噪鹛、普通朱雀、黑头蜡嘴雀和蒙古百灵.鸟市上交易的鸟类还包括国家Ⅰ级保护动物大鸨和16种国家Ⅱ级保护鸟类,如燕隼和鹊鹞等.交易的鸟类主要是捕自本地的,鸟市的旺季和淡季与鸟类的迁徙期密切相关.针对鸟市目前存在的问题,提出应加强鸟市管理人员的队伍建设,健全法制法规,规范市场管理,努力提高公众保护意识,严厉打击偷猎和走私鸟类等非法活动.     

甘肃民勤连古城国家级自然保护区药用鸟类资源研究

2014年以来对甘肃民勤连古城国家级自然保护区药用鸟类资源进行了调查研究。保护区共计药用鸟类30种,隶属于13目16科。其中国家保护鸟类Ⅰ级1种、Ⅱ级6种,国家保护的有益的或者有重要经济、科学研究价值的药用鸟类动物18种。对其种类、生态概况、药用价值、数量等级和保护级别作了介绍。     

西藏珍稀鸟类现状

据近年调查,西藏自治区共有国家Ⅰ、Ⅱ级保护鸟类69种,自治区增加Ⅱ级保护鸟类3种,共72种。其中8种为分布新纪录。猛禽类分布最广,多种数量达千只以上;黑颈鹤在西藏既有繁殖,又有越冬,数量达1500只(繁殖)——3700只(越冬);藏马鸡、藏雪鸡、雉鹑和血雉等雉类分布广且居群数量超万只以上乃至达20万只;犀鸟类的分布区和数量有新的发现;鹦鹉类数量较大。西藏得天独厚的自然条件和社会风俗,为多种珍稀鸟类的栖息和繁衍创造了良好的自然和社会环境。全区珍稀鸟类的现状较好。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-