滇西北油麦吊云杉林净第一性生产力的初步研究

本文研究了滇西北油麦吊云杉林的净第一性生产力。林龄大，净第一性生产力也大。林龄约５０年和１５０年林分的净第一性生产力分别为５．０３１５ｔ／ｈｍ￣２·ａ和１３．７５６０ｔ／ｈｍ￣２．ａ；油麦吊云杉净第一性生产力占群落净第一性生产力的９２．０３％和６５．３９％；木材的净第一性生产力为１．３４３１和４．１４１７ｔ／ｈｍ￣２·ａ，仅占群落净第一性生产力的２６．６９％和３０．１０％。     

滇西北高山松林生物量的初步研究

本文研究了滇西北高山松林的生物量。林龄大生物量减小。林龄约４０年和１００年的林分，生物量分别为２９４．３０６ｔ／ｈｍ￣２和２３１．４９５ｔ／ｈｍ￣２；在各器官中，树干生物量（１４３．５３２ｔ／ｈｍ￣２和１０２．１２０ｔ／ｈｍ￣２）最大，占群落总生物量的４８．９０％和４４．２４％；乔木一层（亦即高山松）的生物量２５４．２８３ｔ／ｈｍ￣２和１７１．４０８ｔ／ｈｍ￣２，占群落总生物量的８６．４１％和７４．０４％；与林龄约４０年的林分相比较，林龄约１００年的高山松林中，高山松生物量所占比例减小而黄背栎等树种的生物量增大。     

滇西北高山松林净第一性生产力的初步研究

本文研究了滇西北高山松林的净第一性生产力。林龄大净第一性生产力小。林龄约４０年的林分，净第一性生产力１２．１９２ｔ／ｈｍ￣２·ａ，林龄约１００年者为１０．０１３ｔ／ｈｍ￣２·ａ；高山松净第一性生产力为９．８４９和５．６２１ｔ／ｈｍ￣２·ａ，占群落净第一性生产力的８０．８４９％和５６．１４％；随着林龄增加，高山松的净策一性生产力及其在群落中所占的比例也逐渐减少，而其它树种的有所增加；在各器官中，叶的净第一性生产力最高，占３４％～３７％，其次为树干木材，占２１．６２％～２７．４４％。     

云南中甸长苞冷杉群落的生物量和净生产量研究

本文研究了云南中甸县吉迪村长苞冷杉群落的生物量和净生产量。结果为：长苞冷杉群落的生物量为３５１．６２３ｔ／ｈｍ￣２，其中乔木层占９７．８７％，灌木层占０．１４％，草本层占０．１７％，苔藓层占０．６７％，凋落物占１．１５％。群落的净生产量为１２３０．６ｇ／ｍ￣２·ａ，其中乔木层占９４．６２％，灌木层占０．７０％，草本层占１．６３％，苔藓层占３．０５％，优势种长苞冷杉的生物量和净生产量分别为３３４．７７７ｔ／ｈｍ￣２和１０９７．８ｇ／ｍ￣２·ａ，分别占群落总量的９５．２１％和８９．２１％。其它乔木材种的生物量和净生产量分别为９．３６４ｔ／ｈｍ￣２和６６．６ｇ／ｍ￣２·ａ，分别占群落总量的２．６６％和５．４１％。     

元江栲群落的生物量研究

本文研究了滇中半湿润常绿阔叶林元江栲群落的生物量。群落的总生物量为２６９．７２９ｔ／ｈｍ￣２，其中树干占５４．６９％，枝占１６．６８％，叶占２．９２％，根占２２．４０％，凋落物占３．３１％。群落的活生物量为２６０．８１１／ｈｍ￣２，其中优势种元江栲占６５．４３％，其它栎类占１８．１０％，其它常绿树占９．３２％，落叶树占６．７５％，灌木种占０．２１％，草本植物占０．０２％。     

黄毛青冈群落的生物量研究

黄毛青冈群落是滇中半湿润常绿阔叶林的另一个群落类型。群落的总生物量为１３５，９０９ｔ／ｈｍ￣２，其中树干占４８．３６％，枝占１５．４４％，叶占４．５１％，根占２７．７６％，凋落量占３．９３％群落的活生物童为１３０．５６９ｔ／ｈｍ￣２，优势种黄毛青冈占５３．９５％，其它栎类占１６．５８％，其它常绿阔叶树占１８２８％，落叶树占７，１５％，灌木占３．８８％，草本植物占０．１６％。     

福建柏人工林生态系统生产力的研究

以双重抽样法和“相对变比生长”模型（ｙ＝ａｘ＾ｂｅ＾ｃｘ）、“树形管道”模型（ｙ＝ａｘ＾ｂＬ＾ｃ）测定４个福建柏人工林的生物量。结果表明：２４年生福建柏人工林密林分（Ⅱ类立地，２７００株／ｈｍ＾２）和２６年生稀林分（Ｉ类立地，１２１６株／ｈｍ＾２）的生物量，前者为１７８．２４０ｔ／ｈｍ＾２（乔木层占９９．６％），后者为１５５．２０４ｔ／ｈｍ＾２（乔木层占９９．６％）；前者年平均净生产量为７．６２８     

滹沱河湿地狭叶香蒲群落生物量研究

研究了山西滹沱河湿地狭叶香蒲群落的结构和生物量,结果表明狭叶香蒲群落的总生物量为７０７６ｋｇ／ｈｍ＾２,其中地上部分（叶、茎等）为２５８９．８ｋｇ／ｈｍ＾２,地下部分（根）为４４８６．２ｋｇ／ｈｍ＾２。建群种狭叶香蒲的生物量为５５１３．５ｋｇ／ｈｍ＾２,其中地上部分（叶、茎等）为１７２５．６ｋｇ／ｈｍ＾２,地下部分（根）为３８０５．９ｋｇ／ｈｍ＾２,占群落总生物量的７７．９２％。优势种披针苔草和狼     

广西林朵林场杉木大径材林分的生物生产力

结果表明：２６龄杉木纯林群落生物量平均为１８３．８９ｔ／ｈｍ２，其组成层次的生物量分配序列（％）为乔木层（９３．６０）＞枯枝落叶层（６．１４）＞灌草层（０．２６）。乔木层年平均净生产量为６．６２ｔ／ｈｍ２·ａ，低于中心产区；平均木单株年平均净生产量１０．９３ｋｇ／ａ，高于中心产区，揭示现有林分密度偏小。２６年生林分平均树高和平均胸径分别为２０．７ｍ和２４．０ｃｍ，其干材生物量平均达６１．５％，适宜培育杉木大径材。     

厦门东屿白骨壤群落生物量和能量

讨论了厦门岛西海域海沧镇东屿的白骨壤群落的生物量和热值、群落各组分的能量分布状况。结果表明：该群落为单种组成的群落，其生物量现存量为４３４６．０９ｇ／ｍ￣２，各组分分配比是：侧根最多，占３６．０２％；多年生枝次之，占２１．４６％；幼枝较少，为０．３３％；幼苗根最少，仅占０．１１％。群落各组分干重热值相差较大，其中叶最高１８．２７ｋＪ／ｇ；主根居次，为１７．８５ｋＪ／ｇ。幼枝较低，１６．１１ｋＪ／ｇ；幼苗根最低为１３．９０ｋＪ／ｇ．群落的能量现存量为７０５５３ｋＪ／ｍ￣２，其中地上部占４７．５４％，地下部占５２．４６％。     

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