深山孕育“金种子” 科技支撑结硕果——记石台县皖南黄兔畜禽国家新品种培育历程

<正>2021年12月4日，农业农村部第498号公告发布，石台县皖南黄兔畜禽新品种经国家畜禽遗传资源委员会审定通过，这是位于皖南山区腹地石台县孕育的一颗“金种子”，该品种是2021年全国认定仅有的7个畜禽新品种之一，也是安徽省唯一一个。皖南黄兔的开发者——安徽省义华农牧科技有限公司坐落于皖南山区深山之中的石台县琏溪村，这颗“金种子”即孕育于此，它集合了汪善义、     

安徽皖南山区和大别山区6种药用植物地理分布新记录

为了厘清安徽的皖南山区和大别山区常见药用植物资源的分布情况,通过对皖南山区和大别山区的多次野外实地调查、标本采集和鉴定,发现了分布于安徽皖南山区和大别山区的6个新记录种,分别是天南星科湘南星Arisaema hunanense Hand.-Mazt.,姜科绿苞蘘荷Zingiber viridescens Z.H.Chen, G.Y.Li et W.J.Chen,,木兰科罗田玉兰Yulania pilocarpa(Z. Z. Zhao&Z. W. Xie) D. L. Fu,五味子科日本南五味子Kadsura japonica(L.) Dunal,旋花科毛牵牛Ipomoea biflora(Linnaeus) Persoon和茜草科卵叶茜草Rubia ovatifolia Z. Y. Zhang,凭证标本存放于安徽中医药大学腊叶标本馆(ACM)。这些新记录种的发现丰富了安徽省药用植物资源,为该地区的植物研究提供了参考,也表明安徽的山区植物资源的调查工作有待细致深入地开展。     

武功山野生动物生存现状及保护对策

武功山野生动物资源和生物多样性极其丰富。文章对分布在该区域的野生动物进行了调查,综合分析区内野生动物种类分布、保护现状及面临的生存威胁,为该区域野生动物保护提出合理的保护对策。     

孙疃煤矿建设对农林生态环境的影响分析

孙疃煤矿位于安徽省淮北市濉溪县境内,地势平坦,整个井田南北长10km,东西宽3～5km,面积约43km2。井田所在区域属温带半湿润气候,四季分明熏年平均降水量为862.9mm。主要河流浍河由西北向东南流经井田中部。该区现为农业耕作区,土地利用结构基本是耕地占75.0%,园林地、牧草地占1.7%,水域占1.2%,居民点及工矿用地占11.3%,交通用地占3.0%,水利设施用地占5.2%,其它用地为2.6%。土地资源利用的特点是开发利用率高,垦殖率达70%以上。该区内农作物主要为小麦、水稻、大豆、油菜、红芋、玉米、棉花、芝麻等。区内多为人工栽培的林木、果树和零星树木…     

保护珍贵濒危的水生动物

《中华人民共和国野生动物保护法》是我国第一部有关野生动物保护管理的基本法,该法的颁布,将为促进我国的野生动物保护事业提供有力的法律保障.《野生动物保护法》规定了在保护的野生动物中,包括珍贵濒危的水生动物,并明确规定国务院渔业行政主管部门主管全国的水生野生动物管理工作.我国江河湖泊甚多,海域辽阔,在繁多的野生动物种类中,水生动物占有重要地位.其中有很多是属于珍贵稀有的物种,具有极高的经济、科学、医学和文化价值,是我国一项宝贵的自然资源.但长期以来,由于保护珍贵水生动物的意     

愿野生动物与人类共存

我国《野生动物保护法》已经人大常委会审议通过,这是一件功在千秋、造福后代的大喜事.近几年野生动物数量减少、种群分布区缩小速度之快令人瞠目和担忧.暂且不论已列入国家保护的动物,一些未列入国家保护动物名单的种类,只要其经济意义较大,它们的命运与保护动物大同小异.安徽省皖南地区、芜湖等12个县,60年代每县每年可收     

独立同分布心极限定理雨量站网规划中的应用

将独立同分布中心极限定理引入雨量站网的规划中,得出面雨量测量精度(测量相对误差或允许误差)与雨量站网密度(平均站间距)呈线性关系,误差增长的斜率与该区域雨量站观测的随机误差均方差呈正比,与区域面雨量和区域面积的平方根呈反比.利用模拟降水场以及安徽省梅雨期间高密度的雨量站点资料,以抽站法为基础进行统计计算,验证上述结论,并对这一线性关系的斜率进行讨论,以期为雨量站网的规划和优化提供一定依据.应用导出的关系式对安徽省2005-2008年梅雨季节降水统计得出,面雨量测量精度与雨量站密度的相关系数在淮北平原为0.49～0.80,在皖南山区为0.70～1.41,如果假定20％的允许误差,安徽淮北平原和皖南山区的最小平均站间距(最高布站精度)分别为25和14 km.     

独立同分布中心极限定理在雨量站网规划中的应用

将独立同分布中心极限定理引入雨量站网的规划中, 得出面雨量测量精度(测量相对误差或允许误差)与雨量站网密度(平均站间距)呈线性关系, 误差增长的斜率与该区域雨量站观测的随机误差均方差呈正比, 与区域面雨量和区域面积的平方根呈反比。利用模拟降水场以及安徽省梅雨期间高密度的雨量站点资料, 以抽站法为基础进行统计计算, 验证上述结论, 并对这一线性关系的斜率进行讨论, 以期为雨量站网的规划和优化提供一定依据。应用导出的关系式对安徽省2005-2008年梅雨季节降水统计得出, 面雨量测量精度与雨量站密度的相关系数在淮北平原为0.49~0.80, 在皖南山区为0.70~1.41, 如果假定20%的允许误差, 安徽淮北平原和皖南山区的最小平均站间距(最高布站精度)分别为25和14 km。     

休宁逐鹿

黄山野生动物园位于皖南休宁城郊的凤凰山,是安徽省皖南国家级野生动物救护中心。救护中心已退休的老主任方笺阳热情风趣,谈起各种野生动物来更是兴致盎然。据方主任介绍,这里是全国唯一一家不位于省会的野生动物救护中心,具有得天独厚的生态环境和自然条件。救护中心将收养和救护成功的动物放养在几座小山上,让它们自由生活。目前生活在这里的动物主要有国家保护动     

皖南山区地质灾害气象预警预报典型案例研究

在对皖南山区"十一五"期间地质灾害气象预警预报资料收集的基础上,通过典型案例的分析,查找了皖南山区降雨类型、降雨量与地质灾害的关系.研究了影响皖南山区地质灾害气象预警预报的主要因数,同时提出了改进该地区预警预报的措施和建议.     

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