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排序方式: 共有149条查询结果,搜索用时 31 毫秒
31.
中国盐矿开发的历史回顾与前瞻   总被引:6,自引:0,他引:6  
中国盐矿资源丰富,广布全国各地区。池盐和井盐开发有几千年历史,在世界盐矿史上创造过许多先进技术。按产出类型划分盐矿化工区有:盐湖化工区、岩盐化工区、井盐化工区和海盐化工区。认真汲取国内外盐矿产业化成功经验,组建新型的产业化集团,将对盐化工业的发展大有碑益。  相似文献   
32.
数字工程建设与空间信息产业化   总被引:5,自引:1,他引:5  
从当前数字工程建设的现状与需求出发,论述了数字工程的概念和技术特点,指出数字工程的技术创新和应用拓展将会进一步推动空间信息产业化。  相似文献   
33.
文章通过对安徽省芜湖市农业产业化促进剩余劳动力转移的实证研究,分析农业产业化的不同模式对农村剩余劳动力转移的作用机制,探求以农业产业化促进剩余劳动力转移的地域模式,为农村经济发展及剩余劳动力转移提供新的思路。  相似文献   
34.
戈壁荒漠区生态环境脆弱,工业化进程中的环境风险高,及时获取工业化进程中基础环境要素演变有助于监控潜在的环境风险。以克拉玛依油区为例,通过遥感获取更大区域的植被和陆表水分布时序特征,分析工业化进程中区域环境要素时空变化特征及其对周边区域环境的影响。利用1977-2016年Landsat和MSS数据,基于NDVI和湿度反演陆表植被和水域覆盖,通过回归分析和复现率获取植被和陆表水分布的时序特征,结合区域内月平均陆表温度和降水信息,分析环境要素时空演变趋势。结果表明:城镇工业区植被覆盖总体改善,存在局部的植被覆盖退化区;研究区内大区域植被覆盖呈明显持续改善,陆表水分布环境稳定,区域环境要素的时空演变表现出不同的阶段性特征;区域环境要素时空演变的空间分布格局体现与人类活动的高相关性,人类活动是区域内环境要素改变的重要影响因素。城镇工业化进程中局部的环境要素退化难以避免,合理规划人类活动,可以促进大区域环境与工业化进程的协调发展,遥感技术可以监测工业化进程与区域环境演变的相关性。  相似文献   
35.
整合脱钩模型、耦合协调模型和工业化城镇空间响应测度模型,采用ESDA和GWR等方法,以镇域为研究单元,分析了2003~2015年徐州市工业化与城镇空间耦合格局及影响因素。结果表明:徐州市工业化与城镇空间的脱钩关系呈现由无脱钩向绝对脱钩状态演化,二者之间的耦合协调程度呈增强趋势,但耦合作用不强;徐州市镇域工业化城镇空间响应程度呈波动性增强之势,各镇域间差异在逐渐增大;徐州工业化城镇空间响应强度差异的“一带”、“两翼”格局正在形成,交通区位优越类镇域尤为显著,表明再生性资源型城市工业化城镇空间响应的禀赋基础正在发生改变; 弱响应镇域主要集中于远离城市且区位不便的区域,持续表现为冷点区域,与经济发展水平的区域格局具有一致性;徐州市工业化城镇空间响应的影响因素作用程度呈现政府调控>投资因素>发展阶段>基础设施的特征,且均呈减弱之势,但各因素的影响作用表现出显著的空间异质性。  相似文献   
36.
闽台建设用地变化与工业化耦合的对比分析   总被引:15,自引:1,他引:14  
闽台因其区域自然背景及历史文化的相似性和经济发展时序递差性成为区域对比研究的理想对象之一。利用闽台相关统计资料对比显示,闽台建设用地增长速度均体现出加速发展的态势,并集中分布于台湾海峡两岸,与两岸的经济布局成东西呼应格局。从福建不同工业化区域以及台湾工业化阶段对比,闽台建设用地综合变动系数均经历了由工业化初期的稳定型或相对稳定型发展到工业化中期的剧变型,并于工业化后期步入缓变型的过程,但福建工业化初期及后期的综合变动系数值略低于台湾。相关指标对比研究结果显示:相对于台湾而言福建产业结构变动率快于建设用地变化率,但福建工业化中期及后期区域的建设用地效率还明显低于台湾。通径分析的结果说明闽台建设用地变化的差异与两地经济发展阶段及产业结构密切相关。文章最后提出福建建设用地实现可持续利用的发展对策。  相似文献   
37.
甘肃农村工业化与城镇化互动关系   总被引:2,自引:0,他引:2  
城镇化与工业化之间具有密不可分的联系,它们相互制约、相互促进、共同发展。在对甘肃农村工业化和农村城镇化的关系进行定量分析的基础上,得出结论:(1)乡镇企业发展是甘肃农村城镇化的重要推动力(回归结果显示城镇化进程的指标和大部分乡镇企业发展的指标间存在着很强的相关关系);(2)现阶段乡镇企业在全省各县区城镇化进程中的作用已相对局限(在对2003年截面数据的相关分析中乡镇企业就业人数和城镇化水平之间的相关关系极其微弱,相关系数为0.058);(3)甘肃乡镇企业发展中存在的诸如经营规模过小、资金短缺、技术层次低、从业人员素质低以及体制制度方面存在缺陷等一系列问题和小城镇发展中存在的规模过小、建设档次低、布局分散、职能趋同性强等问题致使乡镇企业发展和农村城镇化发展在现阶段没有能很好地相互推动和促进。  相似文献   
38.
Comparative study of LUCC between Fujian and Taiwan provinces could be a good case for study because of their geographical proximities and historical, cultural similarities. Fujian and Taiwan had gone through and currently are in different economic development stages. Taiwan is in the stage of post-industrialization and Fujian is in the intermediate stage of industrialization. By using the official statistics, changes of built-land in Fujian and Taiwan were analyzed in details. The results showed that these two provinces seemed to have the same characteristics of built-land changes, i.e., accelerating development, and concentrated distribution on both sides of the Taiwan Straits, forming a pattern with the economic layout of two sides acting in cooperation with eath other. If comparing different industrialized areas in Fujian with industrialized stages in Taiwan, it is clear that these two provinces seemed to have the same characteristics of synthesized index of built-land change (Lc), i.e., which is from stabilization or comparative stabilization at the initial stages of industrialization to high ex-pansion at the intermediate stages of industrialization, then followed by low consumption at later stages of industrialization, but the Lc of the initial and the later stages of industrialization in Taiwan were slightly higher than those in Fujian. The results from comparison on relevant indexes have shown: The industrial structure changing rate of Fujian is actually higher than that of built-land in Taiwan, but its using efficiency of regional built-land is also obviously lower than that in Taiwan in the intermediate and later stages of industrialization of Fujian. The major driving forces of the built-land changes in both provinces were analyzed in Causal Models of Path Analysis, and its result indicated that the difference in built-land changes of the two provinces is closely related to their economic development stages and industrial structure. Countermeasure for the realization of sustainable utilization of built-land in Fujian put forward in this article is to strengthen its intension and tap the latent power.  相似文献   
39.
Comparative study of LUCC between Fujian and Taiwan provinces could be a good case for study because of their geographical proximities and historical, cultural similarities. Fujian and Taiwan had gone through and currently are in different economic development stages. Taiwan is in the stage of post-industrialization and Fujian is in the intermediate stage of industrialization. By using the official statistics, changes of built-land in Fujian and Taiwan were analyzed in details. The results showed that these two provinces seemed to have the same characteristics of built-land changes, i.e., accelerating development, and concentrated distribution on both sides of the Taiwan Straits, forming a pattern with the economic layout of two sides acting in cooperation with eath other. If comparing different industrialized areas in Fujian with industrialized stages in Taiwan, it is clear that these two provinces seemed to have the same characteristics of synthesized index of built-land change (Lc), i.e., which is from stabilization or comparative stabilization at the initial stages of industrialization to high ex- pansion at the intermediate stages of industrialization, then followed by low consumption at later stages of industrialization, but the Lc of the initial and the later stages of industrialization in Taiwan were slightly higher than those in Fujian. The results from comparison on relevant indexes have shown: The industrial structure changing rate of Fujian is actually higher than that of built-land in Taiwan, but its using efficiency of regional built-land is also obviously lower than that in Taiwan in the intermediate and later stages of industrialization of Fujian. The major driving forces of the built-land changes in both provinces were analyzed in Causal Models of Path Analysis, and its result indicated that the difference in built-land changes of the two provinces is closely related to their economic development stages and industrial structure. Countermeasure for the realization of sustainable utilization of built-land in Fujian put forward in this article is to strengthen its intension and tap the latent power.  相似文献   
40.
河南省实施农业产业化思路与对策   总被引:3,自引:0,他引:3  
文章结合河南省农业发展现状 ,分析了河南省实施农业产业化的必要性 ,指出实施农业产业化是河南省农村生产力发展的内在要求 ,是加快河南省农业经济增长、促进农村经济跃上新台阶的有效途径 ,并对河南省实施农业产业化的具体对策进行了探讨  相似文献   
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