贵州红豆杉资源利用与保护

中国红豆杉属植物贵州有１种１变种，分布于省内各地，生产黔东北黔东南，本文阐述了贵州红豆杉的分类及生态地理分布，讨论了资源的合理利用与保护。     

贵州省重点保护植物信息管理系统

对贵州省重点保护植物的科名、属名、种名、形态特征、生态习性、保护价值、地理分布、生活照片、标本照片、标本采集信息、标本馆存放、自然保护区分布等资料,利用文字及图片处理软件进行处理,并输入到计算机中,以SQL Server建立后台数据库,并通过ASP制作查询、管理网页,初步建立了贵州省重点保护植物信息系统.该系统由3个数据库构成,并具有查询和远程管理等多项功能.贵州省重点保护植物信息管理系统是一个在因特网上发布的Web数据库,用户可以通过浏览器访问来进行检索和查询.     

1999～2002年《贵州大学学报（社会科学版）》载文及引文分析

运用文献计量学的研究方法，对1999～2002年《贵州大学学报(社会科学版）》所载论文的我文量、引文量、引文语种分布和引文类型等进行了综合统计分析。     

基于“互联网+”的贵州特色农产品高效生产技术信息服务系统

为整合贵州特色农产品种养技术和生产加工的视频课件资源,研究分析视频数据建库和移动培训系统建设的关键技术与方法,利用大数据技术、流媒体技术、数据库技术和嵌入式技术,构建基于移动互联网的贵州特色农产品高效生产技术信息服务系统,实现了向贵州特色农产品生产加工提供直观、便捷的培训及信息服务,促进贵州特色农产品生产技术推广和普及.     

城乡水务一体化管理综合评价与实证分析——以贵州城乡水务一体化为例

城乡水务一体化管理模式是处理涉水事务的行之有效的方式,它实现了由一个部门对地表水与地下水、水量与水质的统一规划与调度.该模式是一种全新的水务管理体制,也是我国管理涉水事务的一种发展趋势.目前我国大部分地区都基本实现了城乡水务一体化管理,但各个地区发展的程度有所不同.以贵州省为例,综合考虑城乡水务一体化管理的基本原则和目标,采用层次分析法对其管理现状进行综合评价研究.     

基于旅游网站背景下的贵州乡村旅游机会公平研究——以贵州肇兴寨为例

以贵州肇兴本寨为例,在田野调查研究的基础上,论述了旅游网站与乡村旅游信息机会公平、旅游教育机会公平与旅游经济机会公平的关系,并运用模糊数学的方法对旅游网站与乡村旅游机会公平度进行定量评价.从而揭示旅游网站在乡村旅游公平发展与可持续发展中的重要意义.     

黔南石炭系层序地层格架中碳酸盐岩成岩作用研究

在三级层序地层格架内,从体系域及层序界面的角度对黔南石炭系碳酸盐岩的成岩作用进行了研究.结果表明,与LST有关的成岩作用主要为范围广泛的暴露溶蚀作用;与TST有关的成岩作用主要发育于海底成岩环境和混合水成岩环境,其中后者会随着海平面的不断上升而向大陆迁移;与HST有关的成岩作用主要包括发育于海底成岩环境的胶结作用及高位晚期的大气淡水成岩环境中的溶蚀、胶结和白云石化作用.与Ⅰ型层序界面有关的成岩作用主要有溶蚀作用、胶结作用和白云石化作用,成岩时间长、强度大,并且在黔南可进行区域对比;与Ⅱ型层序界面相关的成岩作用发育规模小,对碳酸盐岩的改造能力较弱.与HST有关的成岩作用及与Ⅰ型层序界面有关的成岩作用对碳酸盐岩储层的改造能力强,往往可形成厚层的白云岩及规模较大的溶蚀孔洞体系,因此,可以作为有利储层追踪对比及预测的有力地质依据之一.     

Characteristics of strontium isotopes and their implications in the Qixing Cave of Guizhou,China

The strontium isotopic compositions (87Sr/86Sr) of samples including soils, bedrock, soil waters, drip waters and their corresponding speleothems in the Qixing Cave (QXC), Guizhou Province, China, were systemically measured and analyzed. The results indicate that there are significant Sr isotopic differences among samples. The mean 87Sr/86Sr ratios in drip water for the samples 1#, 4# and 9# were 0.709568, 0.709139 and 0.708761, respectively, which possibly result from different flow paths, residence times, and other hydrogeological processes in the unsaturated zone overlying QXC. Meanwhile, levels of 40.8%, 57.6% and 72.4% of Sr in drip waters for 1#, 4# and 9#, respectively, were derived from bedrock dissolution, which was calculated by the mixture model of the two end-members (soil and bedrock). There is, however, no positive correlation between the relative proportion from bedrock dissolution (δ13C value is 1.8‰) and drip water δ13CDIC values. The mean drip water δ13CDIC value in 1# is the heaviest (–4.5‰) with the lowest contribution rate of bedrock dissolution, whereas the value in 9# is the lightest (–9.3‰) with the highest contribution rate of bedrock dissolution. The proportion from host rock dissolution in 4# is higher than that in 1# and lower than that in 9#, while its mean drip water δ13CDIC value (–8.6‰) is higher than that of 9# and lower than that for 1#. This suggests that the prior calcite precipitation (PCP) processes in the unsaturated zone overlying the cave are responsible for the δ13CDIC value differences between different drip waters, and not bedrock dissolution. Furthermore, this study also demonstrates that the 87Sr/86Sr ratios of speleothems in the 1# and 4# mainly reflect the variation in the relative proportions from the soil system (soil water) and bedrock dissolution overlying the cave. It is, therefore, feasible to use the strontium isotopic signals of speleothems as an indicator for soil chemical weathering intensity, and consequently as a monsoon proxy in the study area.     

Potential release of hydrogen fluoride from domestic coal in endemic fluorosis area in Guizhou,China

Almost half of the total rural area of Guizhou Province and many regions within the 11 adjacent provinces in southwestern China have a long history(at least 70 years) of endemic fluorosis,including dental fluorosis and osteofluorosis along with its associated deformities and disabilities.Over decades of research,this specific type of endemic fluorosis has been defined as coal-burning fluorosis,which is distinct from drinking-water fluorosis.It is generally acknowledged that indoor burning and combustion of high-fluorine coal leads to food contamination,and fluorine then enters the human body.However,the exact chemical form of fluorine during its release and transfer to the body is still unknown.In the present study,21 domestic coal samples from outcrop and semi-outcrop coal collected in five villages with fluorosis were analyzed by time-of-flight secondary ion mass spectrometry(TOF-SIMS).The total mass fraction of sulfur in the samples ranged from 0.24%-5.58% and total fluorine content ranged 90.2-149.2 mg/kg.H3O+,H2SO4+ and HSO4-were detected in the samples by TOF-SIMS,which indicated that sulfuric acid hydrate(H2SO4.H2O) was present in the samples.F-was detected in all of these,which suggested the samples contain ionic fluorine compounds.Under certain circumstances,such as heating or burning,the prevalence and coexistence of the acid(H2SO4.H2O) and base(F-) would lead to a neutralization reaction producing volatile hydrogen fluoride(HF,bp = 19.5℃).This would be the chemical form of fluorine released from the coal.Further studies using HF and SO2 test tubes on headspace gas over coal samples heated to 200℃ in the laboratory and on headspace gas over stoves or chimney tops at rural residences confirmed the release of HF.     

贵州晚三叠世关岭鱼龙的原始尾弯对比研究

通过对贵州关岭上三叠统卡尼阶法郎组瓦窑段地层中的两件关岭鱼龙属标本的观察、测量,并与早侏罗世鱼龙标本对比研究,发现晚三叠世的关岭鱼龙尾椎中部存在一定数量形态发生变化的侧视呈梯形的椎体,已经具有了传统观点认为只在侏罗纪和白垩纪鱼龙中出现的尾弯,弯角为15°左右(侏罗纪鱼龙尾弯弯角可达60°).这一衍生性状的出现表明晚三叠...