40%野草净水基微乳剂麦田除草试验

田间试验表明，４０％野草净水基微乳剂防除小麦田中野燕麦和阔叶杂草较单用燕麦枯和２，４－Ｄ丁酯不仅效果好，而且省工、省时，在以野燕麦和以阔叶杂草为主的麦田使用剂量分别为１８００ｇ／ｈｍ２和９００～１２００ｇ／ｈｍ２。     

冀东褐土区花生施用石膏研究初报

在冀东褐土区花生田间施用石膏，对花生经济性状和植株各部位钙、镁含量有明显影响，并显著提高花生产量。石膏经济最佳施用量和最高产量施用量分别为３５８．９ｋｇ／ｈｍ２和３８６．０ｋｇ／ｈｍ２，经济合理施用量为３３１．５８～３４５．３５ｋｇ／ｈｍ２，在此范围内，花生增产１９．０６％～１９．２３％。     

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。     

药用红花栽培技术研究

对药用红花进行了栽培技术的研究．结果表明，“川红一号”干花产量达２５５～２８９５ｋｇ／ｈｍ２的适宜播期为１０月底，密度为１２００００～１８００００株／ｈｍ２．施肥量为：Ｎ３７５～７５０ｋｇ／ｈｍ２，Ｐ２Ｏ５１５０ｋｇ／ｈｍ２．播种前使用钼酸铵、硼酸和生长调节剂浸种，对增加药用红花干花产量有一定作用．     

菜王星防除春油菜地阔叶杂草效果评价

采用菜王星药剂防除春油菜地阔叶杂草，结果表明：苗期使用３０．０、３７．５、４５．０、５２．５ａｉｇ／ｈｍ＾２，总草鲜重防效分别为４６．７％，５７．１％，６８．２％和７７．０％，其中对薄蒴草的防效最高，为９６．９％，对巨荬菜的防效最低，为６４．５％，该药品对油菜安全、高效、增产效果明显。     

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％。     

42％乙草胺·乙氧氟草醚EC防除大蒜田杂草

42％乙革胺·乙氧氟革醚EC对大蒜田杂革有理想的防除效果，用量567-693g／hm^2的除草效果达90％以上，对大蒜田冬前出土的星星草、早熟禾、繁缕、荠菜有很好的防除效果，对春季出土的藜也有较好的防除效果，并且对大蒜安全。     

美国燕麦在成都地区生育状况与结实性能试验研究

１９９３～１９９５年，通过研究植株经济性状及其相关关系，探讨高寒作物——美国燕麦（ＡｍｅｒｉｃａｎＯａｔｓ）在成都北亚热带地区的生存适应、牧草产量与结实性能．结果表明：美国燕麦基本能适应高温、高湿、少日照的生态条件并正常生长繁殖．各因素中单丛小穗数与产量相关关系极显著（ｒ＝０．９７６５，Ｐ＜０．０１），分蘖数与产量相关关系同样显著．植株日生长量平均０．８１４５ｃｍ．三年中，植株平均分蘖１０．２株～１１株，牧草干重分别达７３４５．３ｋｇ／ｈｍ２、６７３６ｋｇ／ｈｍ２和６３９５ｋｇ／ｈｍ，种子净干重分别达１３９３．３ｋｇ／ｈｍ２、１１５７．２ｋｇ／ｈｍ２和１１３６．６ｋｇ／ｈｍ２．     

冬小麦土壤养分限制因子和施肥指标研究

１９９６～１９９８年在河北省滦县试区进行冬小麦土壤养分限制因子与高产高效施肥指标试验。结果表明,在滦河三角洲沙区,氮、钾是冬小麦产量的土壤养分限制因子,限制因子对冬小麦产量的效应Ｎ＞Ｋ２Ｏ。效益最佳平台区施肥量单施化肥时,Ｎ用量为２９３．４０～３１２．７５ｋｇ／ｈｍ２,Ｋ２Ｏ为１７０．７０～１７８．９５ｋｇ／ｈｍ２;施用有机肥３０ｔ／ｈｍ２时,Ｎ用量为２９７．６０～３１３．６５ｋｇ／ｈｍ２,Ｋ２Ｏ为１５１．５０～１５９．１５ｋｇ／ｈｍ２。     

空青山次生栎林细根周转

对苏南空青山次生栎林细根周转进行了研究，结果表明，栎林细根的年周转率为０．３７，活细根和死细根的生物量分别为１６８０９．１７ｋｇ／ｈｍ＾２和３２７３．０４ｋｇ／ｈｍ＾２，细根年生长量为６１９２．４３ｋｇ／ｈｍ＾２，约占地上部分净初级生产力总量的４７％，细根年死亡量为４３．０２．３１ｋｇ／ｈｍ＾２，占地上部分年凋落物总量的４５％。因此，在森林生态系统养分循环和凋落物中，细根对归还土壤养分起着重要作用     

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-