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1.
山东省地热资源较丰富.介绍了山东省地热资源的分布及其影响因素.根据热储特征划分了全省地热资源的类型,进而进行了地热分区,并分别对各分区地热地质特征进行了论述.对山东省地热资源勘查与开发利用中存在的问题进行了讨论,指出:要加强基础地质研究工作,避免盲目开发造成浪费;为保护环境和地热资源,应加强地热尾水处理及回灌技术的研究,实现可持续开发利用.  相似文献   

2.
城市地下水资源危机及其可持续开发利用对策   总被引:1,自引:0,他引:1  
我国是世界上严重缺水的国家之一,水资源的供需矛盾日益突出。地下水资源已成为我国大中型城市的主要供水水源。由于我国地下水资源分布的自身特征以及不合理的开发利用,引起严重的环境地质问题,促使人们提高节水意识,加强水源保护,开发利用后备战略水源。  相似文献   

3.
郝杰  万维  任路  陈元春  王明汕 《科学技术与工程》2022,22(24):10409-10416
地热资源具有清洁、可再生、储量大等特点,是实现我国“双碳”目标的重要资源。唐山市地热资源丰富,但现阶段开发利用的主要层系为南部平原区新近系馆陶组砂岩热储,北部基岩热储则少有开发利用。本文通过唐山市北部区域地质特征、地热地质条件的分析研究,开展地热资源综合评价,评价结果表明,唐山市北部发育蓟县系雾迷山组白云岩热储埋藏深、水温高、涌水量大,是该区最具有开发利用价值的地热资源。  相似文献   

4.
在对西安各地热点进行详细和深入调研的基础上,对西安地热能资源的地热地质特征、资源条件进行论述和计算分析,介绍目前开发利用现状,并根据长安县、临潼县和灞桥区地热资源开发利用具体情况与条件,以及西安经济发展特点,对今后如何开发与利用本市地热资源,进行探讨区划和论证。  相似文献   

5.
资源与环境是人类生存和发展的基本条件,合理开发利用资源,加强自然生态与环境保护,是促进国民经济和社会可持续发展的基础;搞好矿产资源的地质勘查工作,是科学制定矿产资源规划,加强资源管理、实现矿产资源保护与合理利用的迫切需要。  相似文献   

6.
福建省地热能学科发展报告   总被引:2,自引:0,他引:2  
地热能是一种洁;争的新能源,福建地热资源丰富,已发现温泉点计203处,居全国第五位,以温度计最高121.5℃居全国第四位。已探明水热型地热资源量61522940m^3/年,约相当于35.16万吨/年标准煤,从福建地质构造条件分析,我省东南部蕴藏有大干150℃的高温地热资源,具备地压地热、干热岩地热开发潜在条件;若通过热泵技术加大开发低温地热资源后,我省现已探明地热资源仅占地热总蕴藏量的一小部分,地热能必将成为福建经济持续发展新的增长点之一。地热资源开发利用历史悠久,20世纪70年代以后,进入地热资源开发利用高潮期,主要应用于城市集中供热、温泉旅游、水产养殖,医疗保健,农业利用、体育训练、地震观测等方面。地热能开发利用的原则是:统一规划,科学开发,加强管理,综合利用,集中供热,多能互补,保护环境,讲求效益。建议加强地热资源勘探评价,依据有关法律法规,出台具体有利于地热能开发利用的优惠政策,做到政策扶持、资源保障,加强国际合作、鼓励多渠道资金投入,以加快我省地热能开发利用步伐。  相似文献   

7.
正中国科学院地质与地球物理研究所地热资源研究中心(以下简称地热中心)成立于2014年8月,其前身是成立于1978年的中国科学院地质研究所地热研究组。地热中心是中国从事地热资源及其开发利用研究历史最为悠久的研究机构之一。地热中心面向世界地热学前沿与国家战略需求,集成地热地质、构造地质、水文地质、工程地质、地球物理、地球化学等多学科优势,一方面围绕大地热流与岩石圈热结构、地球动力学等科学问题开展基础研究,另一方面针对地热系统成因理论、  相似文献   

8.
董伟科  王绍鹏 《科技咨询导报》2011,(24):105-105,108
辽河油田地区地热资源丰富,为促进该地区经济快速、全面发展,走可持续发展的道路,根据于楼-红村区域地质条件和地热资源开发利用情况,对地热地质环境进行了分析,提出了地热资源合理开发利用和保护的建议。  相似文献   

9.
阜新市细河地下水资源可持续利用探讨   总被引:3,自引:2,他引:3  
依据可持续发展的战略思想,对阜新市经济转型及细河地下水开发利用的问题进行分析,提出了相应的对策措施,加强法制建设,依法治水;控制地下水开采,改善地下水补给条件;建立合理的水价形成机制:坚持开发利用与保护相结合,减少和防止水资源污染;建立完善的节水体系;建立完善的地下水资源监测网络,从而达到阜新市细河地下水资源的可持续利用目标。  相似文献   

10.
聊城东部地热田地质特征研究   总被引:1,自引:0,他引:1  
地热资源已成为现阶段重要的绿色能源之一.研究分析山东省聊城东部地热田,为开发利用本区的地热资源提供地质资料依据.该地热田位于阳谷凸起的北部区内,面积约600 km2,地热类型属低温层控岩溶裂隙型,盖层是第四系、新近系明化镇组及石炭-二叠系,常被利用的地热有新近系馆陶组和奥陶系马家沟组两个热储层.其中:馆陶组热储层中地热水矿化度为5000mg/L左右,其可利用地热资源量为2.5331×1018 J,热水资源静储量为1.4085×1010 m3;马家沟组热储层中地热水矿化度较高,为5251.38~5292.7 mg/L,其可利用地热资源量为1.1572×1018 J,热水资源静储量为2.16×109 m3.  相似文献   

11.
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.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
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.  相似文献   

13.
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。  相似文献   

14.
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.  相似文献   

15.
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-  相似文献   

16.
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-  相似文献   

17.
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  相似文献   

18.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

19.
Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of  相似文献   

20.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

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