广西自然保护区建设与管理

广西壮族自治区位于欧亚大陆的东南部，面临北部湾，自北至南跨中亚热带、南亚热带和北热带，优越的地理和复杂多样的自然环境条件，孕育着繁多的生物资源。保护生物物种资源及其栖息环境的重要措施和最有效的手段就是建立自然保护区，到2001年为止，广西已建立了各种类型、不同级别的自然保护区的64处，总面积1．6万km^2，占广西国土面积的6．7％。本文简述了广西自然保护区建设与管理现状，并对存在的问题与对策提出了合理化的建议。     

广西自然保护区建设与管理

广西壮族自治区位于欧亚大陆的东南部,面临北部湾,自北至南跨中亚热带、南亚热带和北热带,优越的地理和复杂多样的自然环境条件,孕育着繁多的生物资源.保护生物物种资源及其栖息环境的重要措施和最有效的手段就是建立自然保护区,到2001年为止,广西已建立了各种类型、不同级别的自然保护区的64处,总面积1.6万km2,占广西国土面积的6.7%.本文简述了广西自然保护区建设与管理现状,并对存在的问题与对策提出了合理化的建议.     

广西自然保护区网络体系现状分析

广西自1961年建立花坪自然保护区以后,经过上世纪80年代初期的抢救性建设,目前已建成自然保护区达64处,形成了覆盖全广西的自然保护区网络体系。随着自然保护区事业的蓬勃发展,现有的自然保护区网络体系暴露出许多不足,尤其是在保护区的建设布局方面,各保护区孤立、分散,加上规模小,保护区网络未形成,难以有效发挥其生态保护功能。本文通过对现有保护区网络体系进行全面调查,综合运用生物地理学理论方法与地理信息系统技术,分析广西自然保护区网络体系建设的现状,这将为广西自然保护区建设布局提供科学的基础,具有重要的应用价值和科学意义。     

广西十万大山自然保护区周边社区建设

广西十万大山自然保护区地处北热带气候区,是以水源涵养林、热带季雨林、生物多样性、山地常绿阔叶林模式标本产地为主要保护对象。其地理位置独特,生态位置重要,保护区周界长,涉及周边群众多。因此,重视周边社区建设,为自然保护区创造一个良好的周边环境和生存空间,达到保护与经济双赢的目的和良性循环;目的,是保护区建设中的重要一环。本文所涉及的自然保护区周边社区建设问题,是目前我国其他自然保护区社区建设的共性问题,对今后我国自然保护区周边社区建设具有重要的参考价值。     

广西自然保护区的现状及管理对策

阐述加强广西自然保护区建设和管理的重要性,分析广西自然保护区的现状和存在问题,认为广西自然保护区目前存在经费投入不足、基础设施落后、管理机构不健全、人员素质偏低、管理和法制建设滞后、保护区土地使用权属不清等问题.提出从加快完善自然保护区网络建设、强化自然保护区管理水平、合理利用自然保护区资源、提高自然保护区科研水平、切实解决当前自然保护区存在的突出问题等5个方面来加强广西自然保护区的建设和管理工作.     

广西自然保护区分布特征与类型结构分析

【目的】研究广西自然保护区分布特征与类型结构现状,为广西自然保护区建设与发展提供参考依据。【方法】通过现场调查与资料收集、卫星遥感解译、数理统计相结合,研究和分析当前广西自然保护区数量、面积、区域分布和类型结构等现状和特征。【结果】广西自然保护区数量为77处,保护区陆域面积仅占国土面积的5.64%;地域分布上侧重于广西西部的百色市和崇左市,以及北部的桂林市,东部和南部偏少;类型有5种,结构上以森林生态系统为主。【结论】广西自然保护区的数量偏少,面积偏小;地域分布上西部和北部较多,中部、东部和南部较少;类型结构上,森林生态系统类型比例大,内陆湿地类型以及古生物遗迹等类型缺乏。     

全国自然保护区名录(续完)

省、自治区 自然保护区名称花坪自然保护区面权沙坏) 6.667 主要保护对象珍贵树种银杉及中亚热带 森林珍贵树种及水源林石灰岩地区森林生态系及 珍稀动植物珍稀动物白头叶猴 同上珍稀动物白头叶很、黑叶 猴…建立时间!主管部门龙胜、临桂县1961年地区林业局广西苗儿山自衷期睬护区鼻岗自然保护区兴安、资探县龙州、宁明县10声67954671976年1979年同上自治区林业局崇左自然保护区扶绥自然保护区大新自然保护区祟左县扶绥县大新县肠13310,0009,3331981年1981年1980年县林业局同上同上王朗自然保护区}平武县卧龙自然保护区}汉川县 27,700200,00…     

福建安溪云中山自然保护区植物区系地理研究

云中山自然保护区地处福建省安溪县西北部，位于南亚热带与中亚热带过渡地带，气候温暖，雨量充沛，种子植物成分丰富，有123科461属871种（含种以下等级）。区系地理成分分析表明，云中山种子植物区系是典型的热带起源，热带成分占58．6％，其中以泛热带成分最多（占22．8％），同时兼容了大量的温带成分（占19．7％）。     

南滚河自然保护区考察趣事

南滚河是一条神奇的河流,曲曲弯弯向西流入缅甸, 汇入萨尔温江。这条玉带般的河位于云南省西南部的沧源佤族自治县境内,养育着世代居住在这里的佤族人民。1980年经国务院批准,从河两岸的山谷中划出7082公顷建立了自然保护区,以保护栖息在这里的亚洲象、印支虎等珍稀濒危动物以及它们赖以生存的热带季雨林为主的热带森林。南滚河自然保护区海拔从520米上升     

山西历山自然保护区苔藓植物的后续研究

继2003年钟海秀对历山自然保护区苔藓植物作研究之后,本文再次对该区苔藓植物进行了采集鉴定,结果表明历山自然保护区有苔藓植物共计21科35属45种.与钟海秀的研究有10科24属42种不同,其中1科2属2种为山西省新纪录.区系成分以北温带成分为主,占总数的62.16%,温带亚洲成分次之,占16.22%.热带亚洲、旧世界热带等成分的少量存在,又反映了本区苔藓植物区系的热带残遗性和古老性,说明历山自然保护区苔藓植物区系成分具有由亚热带向暖温带过渡的明显特点.     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

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-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that