巨型“龙骨”现身宁夏

6月16日，经过一段时间的考古发掘，位于宁夏灵武磁窑堡镇的恐龙化石群1号坑内的恐龙骨化石已基本呈现。经考古专家鉴定，磁窑堡恐龙化石群含有至今亚洲已知最大的蜥脚类恐龙。考古人员介绍，2号坑内正在挖掘的一具恐龙化石已确定比1号坑内的还要庞大，有可能冲击世界顶级的巨型恐龙化石。     

禁牧前与禁牧后畜牧业成本差异对比——以宁夏盐池县为例

以宁夏盐池县为例,采用偶遇抽样法随机取得30份有效问卷.在对数据进行统计整理的基础上,分析了禁牧前与禁牧后畜牧业成本的差异.结果表明,禁牧前畜牧业成本为60.68元/只(山羊)或61.68元/只(绵羊),禁牧后则达到了204.17元/只;禁牧后劳动力投入费用增加了123.47%,集中体现在饲喂用工投入加大;禁牧后饲草料的投入增加了309.68%,主要由圈养后饲草来源变化引起;禁牧前在圈舍、机械购买方面投入很少,禁牧后机械购买率达到64.29%,禁牧前不存在附加投入,而禁牧后普遍存在.禁牧后畜牧业成本增加,提高了畜牧业的门槛,在一定程度上使部分农户放弃畜牧业,不利于畜牧业的发展,由此提出必须调整畜牧业结构,改良品种,提高养殖效率等建议.     

Is there any amphidromic point of S2 constituent around the Natuna Islands in the southern South China Sea？

The discrepancies that if there is any amphidromic point of S2 constituent and its location if there is around the Natuna Islands in the southem South China Sea have suspended for a long time, however, there is always no convincing research to settle them up to now. The TOPEX/Poseidon and Jason-1 altimeters have been providing a long-term sea surface height data, which can be used to calculate the constants of tidal constituents along the satellite footprint with the harmonic analysis method. Based on more than 12 years altimetry data from T/P and Jason-1, the character of phase lags from harmonic analysis is used to identify if there is a S2 amphidromic point around the Natuna Islands. The result shows that there is no S2 amphidromic point instead of a nodal line of a standing wave, and the amplitude of S2 constituent is close to zero along the nodal line.     

Distribution of diatoms in the water and surface sediments of southern South China Sea

The relationship of species and abundance between the diatoms in the water and sediments from the southern South China Sea （SCS） were discussed, and the key environmental controlling factors were also investigated. Studies show that the diatom abundance is high in both water and sediments in the southeast part of the southern SCS and the varying trend is similar, while in the northwest part, the abundance is low, and the varying trend is different. The dominant diatom species are Thalassionema nitzschioides and Nitzschia bicapitata in water, and T. nitzschioides and Chaetoceros messanensis in sediments. The diatom species of small size and thin shell in water are more than in the sediments, while the diatom species of large size and thick shell in water are less. The percentage of species T. nitzschioides is higher in water of southeast part than in that of northwest part, but it is similar in sediments of both areas. It is shown that the southwest monsoon is the important factor influencing diatom abundance and T. nitzschioides percentage, and when the southwest monsoon is well developed, the distribution of diatom abundance and T. nitzschioides percentage are consistent in both water and sediments of the study area.     

宁夏地区自行车运动概述

本文概述了宁夏自行车运动的发展和取得的成就,论述了自行车运动在我区普遍发展的四大特点。     

谈宁夏房地产泡沫成因与对策

2001年以来,我国房地产市场持续火热,房地产开发投资增势强劲,土地供应量增加,商品房全面热销,销售价格呈现较大幅度增长,宁夏商品房平均销售价格为每平方米4253元,增长5．8％,增幅比上年提高了3.3个百分点,空置面积也出现负增长。笔者就宁夏房地产的泡沫问题做个简单的探讨     

宁夏师范学院图书馆不断提高服务水平的实践探索

从提高馆员职业道德素质、加强馆藏建设两方面,介绍了宁夏师范学院图书馆不断提高服务水平、建设宁南山区文献信息服务中心的经验。     

技术预见在宁夏沙产业发展中的运用

<正>加快发展沙产业,对于防治荒漠化、有效利用沙区自然资源、缓解人地矛盾、培育沙区新增长极、推动西部大开发,具有重要战略意义。而从产业定位看,沙产业是知识密集的高科技产业,再加上该产业发展的条件差、困难大、经验少,就更加需要科技创新。因此,急需应用技术预见方法,建立一种新的技术支撑体系,以助推沙产业的