羌塘盆地中央隆起带下二叠统展金组烃源岩芳烃化合物特征研究

利用芳烃化合物抗风化、抗生物降解能力强的特点,采用色谱-质谱分析技术,对羌塘盆地中央隆起带展金组烃源岩的芳烃地球化学特征进行分析研究。在检测出的芳烃化合物中,以菲系列为优势主分,其次为三芴系列、萘系列以及联苯系列等,芳烃化合物分布具有较明显的前锋型特征。根据芳烃化合物组成以及相对丰度,认为展金组烃源岩的有机质主要来源于低等水生生物,但联苯系列、荧蒽、芘、苝系列等化合物的检出,表明陆源植物对有机质的来源也有贡献。菲系列化合物的高含量、芴系列相对含量占优势以及沉积环境判别图等,综合显示出烃源岩形成于还原条件下的海相环境。利用MNR、DNR₁、R_ca、TNR₁、TNR₂、R_cb、R_c、R_o(K_4,6,%)、R_o(K_2,4,%)等多个指数对烃源岩成熟度进行判断,认为烃源岩达到成熟阶段,未达到高成熟阶段,这与实测R_o值所吻合。     

日照岚山近岸海域春季浮游生物群落特征及环境驱动

为了解日照岚山近岸海域浮游生物群落结构特征及其环境驱动,2016年5月在该海域开展了涵盖水环境、浮游植物、浮游动物的综合调查。结果发现：日照岚山海域环境因子呈现出明显的空间异质性,绣针河口区域呈现出低盐高营养盐的环境特征,绣针河径流输入是影响该区域环境因子空间分布的主要因素。调查发现浮游植物28种,以硅藻为主,丰度占比为97.5%,甲藻占2.5%,浮游植物丰度范围4.5×10⁷～2.1×10⁸ cells/m³,均值为1.1×10⁸ cells/m³,高值区位于绣针河口区域。发现浮游动物20种,其中桡足类10种,丰度占比56.2%,其次是浮游幼虫6种,丰度占比31.9%,水螅水母类2种,丰度占比6.0%,毛颚动物1种,丰度占比5.9%,端足类1种,丰度占比0.02%,浮游动物丰度范围98～1.1×10⁴ ind./m³,均值为1.3×10³ ind./m³。溶解氧、盐度、pH、铵盐、溶解态无...     

特殊地形条件下的桥位控制布设

阐述了桥梁施工中的特殊条件下,桥位控制网的布设,认为采用全站仪极坐标法放样时,可以完全不测设过过去的桥梁施工所布设的施工控制网,桥梁控制点应灵活布设。     

A study on the multi-component substrom current

A new technique of eigen mode analysis, Method of Natural Orthogonal Components (MNOC) is used to analyze the ionospheric equivalent current systems obtained on the basis of magnetic data at six meridian magnetometer chains in the northern hemisphere during March 17 19, 1978. The results show that the whole current pattern for any given instant consists of a few eigen modes with different intensities. The first eigen mode exhibits a two cell current construction, characterizing the large scale magnetospheric convection and directly driven process, while the second eigen mode shows a concentrated westward electrojet at midnight sector, characterizing the substorm current wedge and the loading unloading process. The first mode consistently exists whenever during quiet periods or at substorms, and its intensity increases from the beginning of the growth phase of substorms, then quickly intensifies in the expansion phase, followed by a gradual decrease in the recovery phase. On the other hand, the intensity of the second mode remains to be near zero during both quiet time and the growth phase of substorms. Its rapid enhancement occurs in the expansion phase. These characteristics in the current patterns and the intensity variations coincide with the defined physical processes of the directly driven and loading unloading components.     

数字航摄仪与传统航摄仪测量方式的比较

以某实验区为例,详细分析传统航摄仪和数字航摄仪两种测量方式在生产效率及技术流程上的差异,得出了相关的结论。对两种航摄仪各自的优缺点进行比较,并针对实际工作需要提出建议。     

生物降解作用下地下水中TCE、PCE迁移转化的数值模拟研究

根据室内三氯乙烯(TCE)、四氯乙烯(PCE)运移转化的土柱实验和研究区地下水化学特征,建立了研究区微生物作用下TCE、PCE迁移转化的数学模型,并进行了计算机数值模拟,模拟结果与实测值基本一致,表明本次研究建立的数学模型是正确的,研究区地下水中存在生物降解作用,为下一步有机污染的治理提供了科学依据。     

空间经济学研究的相关进展与评述

空间经济学是近年来世界经济学和地理学领域研究的热点,本文从历史发展的角度,阐述了比较优势和贸易理论、区位理论、新经济地理理论对空间经济学的主要贡献及观点。可持续发展条件下的空间均衡对空间经济学提出新的理论要求,为此,空间经济学研究应从传统经济目标转向经济、社会、环境综合效用最大化的目标,建立空间异质下的空间均衡的系统分析框架,生态空间分布及其与经济活动开发空间的合理配置理论,使理论模型更为逼近现实,提高理论的解释力。     

基于水环境约束分区的产业布局引导研究——以江苏省为例(英文)

Along with the highly speedy development of economy and society in the developed area in China,with the sharp increase in the quantity of pollutant discharge such as agricultural fertilizers,industrial wastewater and domestic sewage,the water environment has been deteriorated continuously and then become a restricting factor to regional development.For harmonizing the relationship between economic development and water environment,many countries have been attempting water environmental function zoning so as to provide a scientific basis for the basin management.However,focusing mainly on water body,these researches ignored the spatial relation between water and land as well as the restricted function of water environment on regional industrial layout.So previous index system adapted only to the environmental genes but excluded the stress genes of socio-economic development.This paper,thus,taking both the sensitivity and pressure of water environment into consideration,discusses the methods of constraint regionalization of water environment,including how to divide the assessed units,choose and manage the assessed elements.Then,as a case study,Jiangsu Province is divided into four types of areas by the method of quadrant analysis,i.e.,high-pressure and high-sensitivity area (HP-HS Area),high-pressure and low-sensitivity area (HP-LS Area),low-pressure and high-sensitivity area (LP-HS Area) and low-pressure and low-sensitivity area (LP-LS Area).Finally,this paper presents the schemes of industrial layout and the policy of industrial development direction respectively,which are very important bases for harmonizing the industrial development and the bearing capacity of water environment.     

一次强热带风暴特征分析

利用探空、地面加密等资料,对热带气旋"天鹅"的θse、涡度、散度、水汽、垂直运动等特征的分析,揭示了该热带气旋的一些结构特点,如暖心结构和对流的加强,涡度的圆形对称结构,垂直运动的强不对称性,水汽的辅合与输送等等.这些结构特征的揭示对深入认识和研究热带气旋的特点和结构有一定的作用;同时,结合卫星云图、雷达回波的资料,对登陆后的降水进行了讨论.     

盘古梁长6油层组高分辨率层序地层分析对比

用高分辨率层序地层学的理论和方法,对鄂尔多斯盆地中部志丹县盘古梁长6油层组进行了研究,并对其作了长期、中期、短期基准面旋回的划分。结果表明,长6油层组可识别的短期旋回类型,有向上变深的不对称旋回两种,向上变浅的不对称旋回一种;中期的基准旋回可识别出7个,长期的基准面旋回有3个。最后对基准面旋回对比与传统的沉积旋回对比的方法、过程、分界面的选取标准、对比结果之间的差异及优劣进行了探讨。