工业用地转让亟待规范   总被引：1，自引：0，他引：1  

周力丰  朱贤民 《浙江国土资源》2005,(8):26-29

存在问题 在城市化进程发展过程中,许多建成区的工业用途的房地产由于规划调整、环境影响、债务纠纷等原因,被搬迁、被兼并、被变卖、被裁定,其土地使用权随之进入土地市场转让交易,一些房地产开发企业和自然人也参与其中,他们有的是通过司法裁定获得,有的是通过中介市场淘得,也有的是双方协议转让取得.于是,一个国有土地使用权转让管理中的棘手问题出现了,那就是,作为没有工业用地经营资格,不具备工业生产基本能力的房地产开发企业和自然人,能否买受工业用地?  相似文献   

能源新秀——可燃冰     

江米 《河南国土资源》2006,(3):37

就在人们担心石化能源将被耗尽时,科学家们在海洋和冻土带发现了一种新型洁净能源——可燃烧的“冰”。其主要成分是甲烷与水分子(CH4·H2O),学名为“天然气水合物”,是天然气和水在一定的温度、压力条件下相互作用所形成的貌似冰状可以燃烧的固体,俗称可燃冰。据估算,世界上可燃冰所含有机碳的总资源量相当于全球已知煤、石油和天然气的2倍,可满足人类1000年的需求。这无疑给未来的能源需求带来了福音,引起了人们的广泛关注。可燃冰的发现纯属偶然。在上世纪30年代,为了输送天然气,铺设了输气管道,但工程人员发现,一些输气管经常奇怪地被…  相似文献   

断层相关褶皱理论在准噶尔盆地南缘山前带构造研究的应用   总被引：8，自引：4，他引：4  

邵雨  陈伟  张伯友 《地球科学与环境学报》2005,27(1):26-29

利用断层相关褶皱的构造几何分析方法，对准噶尔盆地南缘山前复杂构造带内基于地震剖面进行了构造解析，搭建了中、东段的构造轮廓和构造组合样式，认为东段阜康断裂带主要表现为至地表的推覆逆掩。由于位移量大部分转移至地表，阜康断裂带的前陆部分无喜山期构造带；西段造山带内的挤压往前陆方向传递过程中以前列式不断释放其位移量，造成在纵向上呈现三排主要的断层相关褶皱带。根据正演平衡地质剖面制作技术对山前复杂构造区地震剖面反射波的构造识别进行了模拟与探讨。  相似文献   

海浪非线性性的实验研究——Ⅰ.波面高度分布的非正态性     

丁平兴  侯伟 《海洋学报》1992,(6)

本文介绍海浪非线性性实验研究的第一部分。利用实验室测得的在各种背景下具有不同非线性强度的风浪波面记录,通过波面统计分析,并与非线性波面理论分布比较,揭示了海浪非线性性的外观特征及其随风速、风区等的变化规律。  相似文献   

VERTICAL PROFII,ES OF CHL-A AND PRIMARY PRODUCTIVITY IN THE MIDDLE CONTINENTAL SHELF AREA AND EDDY AREA OF THE EAST CHINA SEA     

Wu Yu-lin  Zhou Cheng-xu  Zhang Yong-shan 《中国海洋湖沼学报》2002,20(1):74-80

Vertical profiles of chl-a and primary productivity in the middle continental shelf area and eddy area of the East China Sea were studied using data from a cruise in the East China Sea in February to March, 1997 and a cruise in July, 1998. The results showed that chl-a vertical distribution closely related to in situ hydrological and nutrient conditions. Chla-a concentration ranged from 0.22 to 0.35 mg/m³ and 0.93–1.09 mg/m³ in the eddy area and in the middle continental shelf area, respectively. In both areas, chl-a concentrations in deep layers were slightly higher than those in shallow layers, but was of the same order of magnitude. In summer, when a thermocline existed in the water column, highest chl-a concentrations appeared at the base of the thermocline layers in both areas. In the eddy area, chl-a concentration maximized at 31.743 mg/m³, and averaged 1.143 mg/m³ below 30 m depth. In the middle continental shelf area, the highest chl-a concentration was 2.120 mg/m³, the average was 1.168 mg/m³. The primary productivity reached 1418.76 mgC/(m²·d) in summer and 1360.69 mgC/(m²·d) in winter. In the eddy area, the primary productivity was 787.50 mgC/(m²·d) in summer and 159.04 mgC/(m²·d) in winter. Vertical carbon sinking rate from the deep layer to the bottom in both areas is also discussed in this paper. Contribution NO. 4183 from the Institute of Oceanology, Chinese Academy of Sciences. Project No. 49636210 supported by NSFC.  相似文献   

概论机场能见度的准确预报     

张晓晖 《成都信息工程学院学报》2002,17(3):166-169

通过对影响能见度的因素的分析，提出了一种能见度预报方法－综合分析法，极大地提高了能见度的预报准确率。  相似文献   

Mantle processes during ocean formation：Petrologic records in peridotites from the Alpine－Apennine ophiolites     

GiovanniB.Piccardo 《《幕》》2003,26(3):193-199

Mantle peridotites were early exposed at the sea-floor of the Jurassic Tethys derived from the subcontinental mantle of the Europe-Adria system. During continental rifting and oceanic spreading, these lithospheric peri-dotites were percolated via diffuse reactive porous flowby melt fractions produced by near-fractional melting of the upwelling asthenosphere. Ascending melts inter-acted with the lower lithosphere, dissolving pyroxenes and precipitating olivine, and crystallized at shallower levels in the mantle column causing melt impregnation.Subsequent focused porous flow formed replacive dunitechannels, cutting the impregnated oeridotites, which were conduits for upward migration of MORB-type liq-uids. Melt migration produced depletionlrefertilization and significant heating of the percolatedlimpregnated mantle, i.e the thermochemical erosion of the litho-sphere. Impregnated and thermally modified lithos-pheric mantle was cooled by conductive heat loss dur-ing progressive lithosphere thinning and was intrudeaby MORB magmas, which formed Mg-rich and Fe-richgabbroic dykes and bodies. Alpine-Apennine ophiolitic peridotites record the deep-seated migration of melts which changed their compositions and dynamics during the rift evolution. The thermochemical erosion of the lithospheric mantle by the ascending asthenospheric melts, which induces significant compositional and rhe-ological changes in the lower lithosphere, is a major process in the evolution of the continent-ocean transi-tion towards a slow spreading oceanic system.  相似文献   

含平流（avdection）的热单温吸积流的径向结构     

刘效庸  陈韶丽 《天体物理学报》1997,17(3):239-248

本在小粘滞参数，低吸积率的条件下，借助含平流的热吸积流的自相似解，考虑非热正负电子对产生，采用分两个区域分别求妥然后对接的方法，研究了含平流的热单温吸积流的径向结构。证实了热吸积流所具有的一些显特征和基本性质，同时得到一些新的结果：含平流的热吸积流存在一个临界半径ｒＣｒ；明确指 出含平流的热吸积流的辐射冷却率与中心天体的质量成平方反比关系；提出正负电子对过程对含平流的热吸积流的辐射过程有显影  相似文献   

浅谈火山作用     

潘明宝  解国爱 《江苏国土资源》2003,(7):22-25

地壳深处的岩浆喷出地壳便产生了火山现象，所引起的全部地质过程称为火山作用。火山喷发是一种极为壮观而令人生畏的自然现象，介绍了火山喷发主要的3种形式、火山作用造成的灾害类型和中国的火山特点，以及自全新世以来我国有过喷发活动的8个主要活火山。提出了要加强认识火山的活动规律、形成过程、喷发机理，开展监测，采取对策，防灾减灾。  相似文献   

成都市冬季重污染日气象条件成因分析及预报     

张波  杨柏生 《成都信息工程学院学报》1992,(3)

本文通过对成都10个重污染日进行天气学分析,将污染浓度与气象要素进行聚类、研究了重污染日形成原因及污染浓度与气象要素的关系。在此基础上,建立了SO_2、TSP日平均浓度分级预报方程。  相似文献