试论世博会后昆明世博园的可持续发展   总被引：8，自引：0，他引：8  

金波  张茵  王如渊 《地域研究与开发》2001,20(3):23-26

’99昆明世博会后，如何实现世博园的可持续发展，成为学术界和世博园管理者不可回避、急需解决的现实问题。文章在论述世博园的性质、现状、面临的问题、影响世博园持续发展的因素的基础上，初步提出出世博园可持续发展的对策。  相似文献   

论中国经济区域的再形成     

马彦琳  马彦华 《地域研究与开发》2001,20(3):27-30

经济区域空间格局变化是区域经济不断发展的外在化表现，文章从区域、经济区域等基本概念入手，以经济全球化为背景，分析了市场机制作用下中国经济区域再形成过程的态势和外部环境变化，指出随着我国经济体制改革的深入进行，应积极培育合理经济区、建立合理的区际分工体系、培育区域之间合理的竞争态势，以提高我国区域竞争力和国家竞争力。  相似文献   

21世纪初叶中国治贫反困新思路     

马志正  安树伟  王万全 《地域研究与开发》2001,20(3):31-33

21世纪初叶中国的贫困形势是乡村贫困与城市贫困共存，绝对贫困与相对贫困共存，区域性贫困与阶层性贫困共存。文章针对我国反贫困工作中存在的主要问题，提出了建立有效的反贫困治理结构、妥善解决城镇贫困问题、加强国际间合作等对策。  相似文献   

环洞庭湖区城镇体系发展研究   总被引：6，自引：1，他引：6  

刘明  谢光辉  谢炳庚  罗为检 《地域研究与开发》2001,20(1):32-37

通过对环洞庭湖区城镇体系发展的历史背景以及现状特征分析，指出其发展过程存在着城市空间格局发展不平衡，产业结构重复严重等问题，在此基础上，提出了相应的对策与发展措施，确保环湖区内城镇体系的持续，快速发展，并最终实现带动区域经济发展的目的。  相似文献   

古吉黑造山带拼接带地球物理特征线   总被引：3，自引：1，他引：3  

郭孟习  孙炜  尹国义  彭玉鲸 《吉林地质》2001,20(1):27-34

吉黑造山带拼接带的地球物理特征线，在重磁图上为伊通-吉昌-桦甸、贤儒-安图-开山屯一线。它分割了两种截然不同的地球物理场区，与两侧中元古宙-早三叠世不同的地质发育历史相呼应；和石炭-二叠系安哥拉与华夏植物地球区系的界线相一致。这是有别于前人而为更多新的地质资料所支持的新认识。  相似文献   

长春市地下水开发环境问题研究   总被引：3，自引：0，他引：3  

朱彩霞 《吉林地质》2001,20(1):53-56,60

本文根据近期地下水动态监测资料，结合地下水赋存的环境水文地质条件，分析论述了长春市由于不合理开发地下水资源而产生地下水水位下降，水量削减、水质污染、地面沉降等环境地质问题，提出了防治对策及建议。  相似文献   

低氟与大骨节病－－大骨节病防治拾趣四则     

李端生 《吉林地质》2001,20(2):72-79

该文笔者多年研究大骨节病原始原因的一项新说。即病区外环境低氟。引起体内以低氟为中心的代谢紊乱，从而导致以骨骼系统为主的病变－大骨节病。防治该病，应向体外补氟。药疗这一进补方式故然必然，但最有效又生活化的办法是食疗。食疗又分氟盐防治和饮茶防治两种。而最适用且简便的方法是提倡患区人群适度饮茶，并且应从儿时做起。关于补氟和饮茶等防治大骨节病的实践，笔者已浓缩于下面四则拾趣之中……。  相似文献   

离子色谱法测定水样中S~(2-)、SO_3~(2-)、SO_4~(2-)、S_2O_3~(2-)     

时艳  刘江潮 《吉林地质》2001,(2)

该种方法利用离子色谱仪的电导检测器与电化学检测器串联 ,十几分钟即可连续完成水中S2 - 、SO2 - 3 、SO2 - 4、S2 O2 - 3 的测定 ,方法具有快速、高效、方便、灵敏、选择性好等特点。方法的检出限分别为 :S2 - 12 5 μg/L ;SO2 - 3 2 2 4 μg/L ;SO2 - 45 0 μg/L ;S2 O2 - 35 0 μg/L。相对标准偏差在 1 5 %～ 6 9%之间 ,能够满足水中S2 - 、SO2 - 3 、SO2 - 4、S2 O2 - 3四种阴离子分析测试的需要。  相似文献   

Secondary dispersion from gold deposits in west Turkey     

Mi?raç Akçay  H.Mustafa Özkan  Charles J. Moon  Barry C. Scott 《Journal of Geochemical Exploration》1996,56(3):197-218

Orientation studies over the Sarpda? prospect in the Biga peninsula and the Arapdagi deposit near Izmir have provided elear evidence for elemental dispersion around west Turkish gold prospects. Although these deposits are of different types, silicification associated with the deposits results in the main part of both deposits forming topographic highs.At Sarpda? gold mineralisation is relatively weak compared with nearby prospects and associated with a silicified cap on the main hill. Comparison of coarse and fine fractions, based on a 190 μm size split of 8 kg of -2 mm material, suggests that gold disperses clastically on the steep slopes, probably within silica, but coarse grains break down giving Au concentrations in the finer fractions at the base of the main slope. Discrete gold grains, that can be panned, only occur 1–2 km downstream within the streams and heavy mineral concentrations are very limited. This interpretation of Au dispersion is consistent with the data from 1 kg samples collected at the higher primary grade, but more contaminated, Arapda?i prospect.Antimony is the most consistent pathfinder both for the silicified cap at Sarpda? and for gold-rich veins at Arpada?i. It gives high contrast anomalies. Arsenic is useful being more mobile than Sb, although contrast may be low. High resolution Ag data can be useful but base metal enrichments are also often associated with Ag anomalies. Most prospects have some base metal enrichments although they can be displaced from the main gold-rich parts of the deposit and anomalies may be weak. Lead and Cu are the more consistently useful elements.The use of large (> 8 kg of -2 mm material) samples produces consistent stream sediment data that can be used to reliably interpret single samples and quantify Au anomalies. A survey around the Halíköy Hg and Emirli Sb mines, using these large samples, confirmed the extension of the known gold-bearing Emirli structure. In contrast the major Hg-bearing Halíköy Fault is gold poor although a structure parallel to it is auriferous.  相似文献   

Histological bone structure of Lower Cretaceous dinosaurs from southwest Istria (Croatia)     

Z. Kozari?  M. Šparica  Z. Bajraktarevi? 《Cretaceous Research》1996,17(6):741-749

Recently discovered dinosaur bones in submerged near-shore deposits of southwest Istria include one vertebra, one femur, and two rib fragments. They all show well-developed vascularization. The large amounts of primary bone tissue in the vertebral and femoral compacta as well as in one rib fragment suggest that they belong to sub-adult animals which were growing rapidly. The structure of a second rib fragment differs in that it consists of secondary bone. The absence of lines of arrested growth is evident in all investigated bones. This suggests a sustained manner of bone deposition.  相似文献