山西地区非弹性衰减系数、场地响应和几种震源参数的研究.

根据山西数字地震台网14个地震台的310条波形资料，研究了山西地区的非弹性衰减系数；采用Atkinson和Moya方法，研究了各台的场地响应和几种震源参数，并对这两种方法的反演结果进行了对比分析. 得到山西地区非弹性衰减Q值随频率f的关系为Q(f)=323.2f 0.506；得到的14个台站的场地响应均没有显示出明显的放大效应，这与山西台站均处于岩石地基相符；得到了拐角频率与地震矩、地震矩与应力降、震源半径与应力降之间存在依赖关系.      

山丘地区地下水研究

本文通过山丘地区找水实践,论述了该区的富水构造及影响因素和类型,对山丘地区地下水资源的开发利用必将产生积极作用.     

Arbitrary Difference Precise Integration Method for Solving the Seismic Wave Equation

Wave equation migration is often applied to solve seismic imaging problems. Usually, the finite difference method is used to obtain the numerical solution of the wave equation. In this paper, the arbitrary difference precise integration (ADPI) method is discussed and applied in seismic migration. The ADPI method has its own distinctive idea. When dispersing coordinates in the space domain, it employs a relatively unrestrained form instead of the one used by the conventional finite difference method. Moreover, in the time domain it adopts the sub-domain precise integration method. As a result, it not only takes the merits of high precision and narrow bandwidth, but also can process various boundary conditions and describe the feature of an inhomogeneous medium better. Numerical results show the benefit of the presented algorithm using the ADPI method.     

Spectral Representation and Analysis of the KBR Precision Based on the Earth Gravity Spectrum

IntroductionThe GRACE (gravity recovery and cli mate ex-peri ment) mission,twin satellites flying in for-mation ,which carries several key payloadsinclu-ding KBR (K-band ranging) system, waslaunchedin 2002 . The unique design of GRACEmissionis expected to lead to ani mprovement inseveral orders of magnitude in these gravitymeasurements and allow much i mproved resolu-tion of the Earth gravity field of finer scale overbothland and ocean to study a lot of geosciencesphenomena[1]. Though th…     

国外GIS在地下水管理与研究中的应用和启示

GIS及其应用研究是水资源学科发展中的一个热点问题.本文在对国外GIS及其在地下水管理与研究领域的应用概况进行介绍的基础上,指出了GIS在地下水管理与研究领域的主要发展方向,并总结出GIS技术在国外地下水管理与研究领域的应用情况及其给我国带来的启示.     

围栏对新疆山区草地植被下土壤动物多样性的影响

通过对新疆典型山区草地———高山草甸、亚高山草甸、高山草原和亚高山草原野外实地监测,比较了草原围栏内外土壤动物的类群组成、个体数量及生态分布,讨论了围栏这一人为手段对山区草地植被下土壤动物的影响:土壤动物多样性为围栏内高于围栏外,但是受构建时间的限制,围栏内外差异不显著。土壤动物类群数和个体数的分布主要取决于草原植被、土壤有机质、土壤含水率等因子。     

SHRIMP zircon U-Pb age and significance of Early Paleozoic volcanic rocks in East Kunlun orogenic belt, Qinghai Province, China

A great deal of practical data in recent years have proved that the East Kunlun orogenic belt and even the China central orogenic belt are complex orogenic belts that underwent polycycle orogenic evolvement[1―7]. Each orogenic cycle has left a compositional print, the multi-period ophiolites[4―6] and various types of tec-tono-magmatic production in the same orogenic belt. There is a suite of shallow metamorphic volcanic rocks in the Nuomuhong area in the east part of the East Kunlun orogen…     

胶州市抗震设防规划减灾策略

山东省胶州市位于黄海之滨、胶州湾畔，东依崂山、东南临青岛港和黄岛前港湾，总面积1210km^2，辖18个镇、街道办事处，人口77万。从地震地质构造看，胶州市地处大沽河、洋河水系发育的沉积地区，古河道变迁复杂。区内有郯庐强震带、燕山渤海强震带、南黄海强震带，一旦周边地区发生强烈破坏性地震，对胶州市将会产生破坏性影响，甚至有可能造成重大人员伤亡和财产损失。因此提高胶州市抗震设防能力，确保人民生命财产安全是保证经济建设顺利进行的一项重要工作。     

蔚县矿区奥陶系下统灰岩岩溶发育规律及煤层开采对策研究

在充分收集蔚县矿区勘探资料、生产矿井资料的基础上,进行了归纳整理与分析研究,总结出矿区奥陶系下统灰岩岩溶发育规律(岩溶发育程度在平面上划分为三个区,垂向上大致可分为三个带)及岩溶水的赋存条件,并提出了受奥陶系下统岩溶水威胁的1、5号煤层的以防为主,带压开采、不直接疏排岩溶水的技术和方法和开采对策。