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1.
四川省某硅石矿土地复垦方案   总被引:1,自引:0,他引:1  
长期以来,矿产资源开发留下了大量废弃地,未得到及时复垦利用,严重破坏了生态环境。为有效的保护耕地,矿区土地复垦已势在必行。露天矿山采矿废弃地土地复垦,自《土地复垦规定》发布10年来取得了长足的进步。方案以四川省某硅石矿土地复垦方案为例详细介绍了露采矿山的废弃地土地复垦从编制依据到项目实施的过程。  相似文献   

2.
张玉梅 《山西地质》2014,(4):109-110
本文主要介绍了依据《关于开展工矿废弃地复垦调整利用试点工作的通知》,山阴县作为山西省的试点开展工矿废弃地复垦利用专项规划,达到盘活部分土地有效增加耕地面积,大大提高了土地利用效率。  相似文献   

3.
靖远矿区采煤沉陷区复垦综合评价方法研究   总被引:1,自引:0,他引:1  
以靖远矿区为例,从土地复垦和恢复生态学的角度出发,建立了靖远矿区采煤沉陷区复垦综合评价系统,选择土壤条件(土层厚度、土壤质地、有机质含量、土壤水分)、地形改造条件(地面坡度、地表破坏程度、改造难易程度)、气候及水文条件(年降雨量、灌溉条件)作为分类及评价因子对复垦潜力进行评价。将采煤沉陷地分为四种潜力区,对每种潜力类型区的复垦开发利用方向进行了优化设计,从理论上和实践上对靖远矿区采煤沉陷地的复垦能力以及复垦过程中用地结构的优化作了探讨,以期对当地沉陷地的复垦提供一定的科学依据。  相似文献   

4.
高翔  董欣 《辽宁地质》2014,(5):33-33
记者从近日召开的辽宁省工矿废弃地复垦利用试点现场会上了解到,今年,辽宁将稳步推进工矿废弃地复垦利用试点工作。工矿废弃地复垦利用,是将历史遗留的工矿废弃地以及交通、水利等基础设施废弃地加以复垦,在治理改善矿山环境基础上,与县(市)区的工矿发展、基础设施和民生工程等用地相挂钩,使废弃建设用地得到盘活和合理调整利用,在确保建设用地总量不增加的前提下,既提供了建设用地发展空间,又增加了耕地面积,提高了耕地质量,改善了生态环境。  相似文献   

5.
露天采煤矿区土地的复垦:土壤透水性实验   总被引:1,自引:0,他引:1  
露天采煤矿区土地的复垦:土壤透水性实验党志,万国江(中国科学院地球化学研究所,贵阳550002)关键词露天采煤矿区,复垦,土壤透水性实验煤矿区土地复垦常用的方法是在矿渣表面覆盖一层约5~40cm厚的土壤,种草植树以恢复植被。但在一些化学风化强烈的地区...  相似文献   

6.
张江华  王葵颖  徐友宁  陈华清  乔冈 《地质通报》2018,37(12):2260-2263
矿业废弃地的复垦已成为中国当前面临的紧迫任务之一。针对青藏高原植物生长期短,矿渣的砾质性、松散性和土壤贫瘠性植被生长的自然环境的约束瓶颈,通过研究生态脆弱区矿业废弃地的修复治理进程,总结提出了青藏高原典型矿山废弃土地的生态修复和植被重建的治理模式,凝练筛选出关键技术,为高寒高海拔矿区的地质环境治理和土地复垦提供技术参考。  相似文献   

7.
为优化城乡建设用地布局,提高农民群众生活质量,破解土地供需矛盾,威海市国土资源局临港区分局采取四项措施强化管理,力推城乡建设用地增减挂钩和工矿废弃地复垦调整利用工作。一是宣传汇报到位。多次就建设用地增减挂钩和工矿废弃地复垦调整利用工作向区领导进行专题汇报,引起区领导高度重视,区项目推进办将实施进展纳入重点工作对各镇办进行考核。二是鼓励优惠政策到位。  相似文献   

8.
高翔  郝洋  张序  董欣 《辽宁地质》2014,(5):34-34
抚顺煤炭开发历史悠久。近年来,受采煤沉陷等因素影响,遗留了大量废弃土地,不仅占用了宝贵的空间资源,还对生态环境造成严重危害,给矿区群众生产、生活带来诸多不便。调查显示,抚顺市工矿废弃地总规模4180公顷。大量闲置工矿废弃地,带来一系列的地质灾害和生态环境问题,严重制约了城市转型和社会经济发展。2012年9月,抚顺市东洲区被国土资源部列为工矿废弃地复垦调整利用试点区。  相似文献   

9.
矿山土地复垦方法类型划分研究   总被引:6,自引:0,他引:6  
武强  薛东 《西北地质》2003,36(C00):247-252
对土地复垦现存的技术方法进行类型划分,把其划分为工程复垦、生物复垦和生态复垦及多种方法相结合的复垦四大类,并对各个复垦方法进行了特征分析。指出生态复垦是以后土地复垦的发展方向。土地复垦是各门学科的综合,随着科技的进步,土地复垦的技术方法也将越来越完善。  相似文献   

10.
大冶铁矿历史悠久 ,是武钢的主要矿石原料基地 ,目前的生产能力为每年 44 0万 t,长期的矿产开发创造了巨大的财富 ,也破坏了自然环境和生态系统 :尾矿库、废石场和采空区占用和破坏土地超过 3333333m2 ,矿区周围的水和土壤被污染。要改善生态环境 ,缓解矿区人多地少的矛盾 ,追求矿山的可持续发展 ,土地复垦迫在眉睫。针对尖山废石场现状及复垦适宜性等问题 ,在野外调研和取样分析的基础上 ,着重对废石场的农业复垦进行了规划和技术、经济评价 ,并提出了采用淤泥覆土的观点。同时对矿山土地复垦工作在资金、人力、工程技术等方面提出了一些建议。  相似文献   

11.
北京地区许多废弃的无主老矿山未实施矿山环境治理和土地资源恢复工程,矿区内地质环境和生态条件恶劣。本文对废弃矿山及其治理工程特点进行了分析,运用灰色关联度分析法,阐述了矿山废弃地土地资源破坏效应的四个因素——地表景观效应、土体污染效应、次生灾害效应、生态环境之间的联系。以房山区石窝大理石矿山废弃地治理工程为例,提出了矿山废弃地治理以矿山环境、灾害治理为主,以园林景观绿化为辅相结合的二维治理模式,在地形整治、挡土墙、绿化等措施的基础上进行园林景观的设计,结合周边居民生活需求,利用矿区内的正负地形渣堆和采石坑,进行景观的再生和组合,将采石坑设计成下沉式休闲公园和健身广场,希望通过园林景观绿化工程的实施,改善矿区及周边地表景观和生态环境。  相似文献   

12.
Land reclamation in Egypt: A study of life in the new lands   总被引:2,自引:0,他引:2  
For decades, Egypt has tried to increase its agricultural area through reclamation of desert land. The significance of land reclamation goes beyond the size of the reclaimed area and number of new settlers and has been important to Egyptian agricultural policies since the 1952-revolution. This paper examines from a micro-perspective, the life of Egyptians resettled in the new lands. The first part of the paper provides an introduction to the discourses of land reclamation, to the policies of reclaimed land distribution, and to the background of the settlers. The second part is based on fieldwork in a village in the new lands; it is inhabited by graduates who have received land under the Mubarak Project. The analysis shows that they move there in hope of making a better life especially for their children. Nevertheless, the settlers have difficulties building a sense of belonging to the new villages, and lack of good schools and other public services may cause families to split up. For some, however, resettlement in the new lands entails new social and economic possibilities. The paper concludes that while land reclamation may not be ecologically or economic sustainable, the new lands provide settlers with new opportunities.  相似文献   

13.
Solid fills arranged in 1-m-thick layers were prepared with stone blocks and pebbles of a drainage bed every 8 m. Runoff gathering in a well and the use of silts and mud lands for bordering and sealing the limestones are the main techniques employed for minimizing unfavorable effects at the Lezama-Leguizamon abandoned open-pit mine. Since there were waste disposal problems in the area, the rate of disposal has made the activity profitable. No significant faults have been detected by control studies, and the objectives are being achieved without problems.  相似文献   

14.
Shaul Krakover 《GeoJournal》1999,47(4):551-561
Geo-political changes and the drive to higher standards of living induce growing numbers of nomad populations to give-up their special way of life. The Bedouin of the Israeli Negev are no exception. Gradually, they settled down in scattered, unauthorized clusters of tents and shacks in the open lands of the northern Negev. Governments of Israel were unsatisfied with the emerging unplanned spontaneous settlements. Consequently, governmental planning agencies came up with a program to house the Bedouin population in seven new towns. The government's initiative in establishing the towns had two main objectives. First, urban settlements were viewed as conduits for the provision of modern utilities and social services that were very hard to supply and distribute among the many small and scattered spontaneous settlements. Second, Bedouin put forward claims over much of the lands they arguably were using in their former way of life as nomads. Although the claims were not – and could not be – supported by legal documents, the government offered the Bedouin subsidized developed urban land in exchange of their claims over the undeveloped dry desert lands. Currently, more than 60 per cent of the Negev Bedouin population reside in the seven planned urban settlements. Nevertheless, only a small proportion of the land claims has been settled. This paper argues that the attempt to achieve both goals via the urban settlement program was too ambitious. While the goal of providing better services in urban areas has been partially accomplished, the goal of removing the claims over the lands is far from being resolved. The paper argues that the link between the two goals should be reconsidered. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

15.
孙廷仁 《探矿工程》2018,45(10):109-114
土地资源禀赋有限、土地供给紧张严重制约了经济发展,引发了多种社会问题;废弃地生态系统结构被破坏,存在地质灾害隐患,亟待治理;废弃地分布零散、资源配置不合理,在利用过程中存在过多不必要的损耗,需要集约规划。因此,本文主要通过对废弃石灰岩矿破损山体排险修复工程设计及建设光伏电站场地改造方式进行探讨,意在提出合理、实用的解决方案,为类似废弃地潜在利用价值开发提供思路。  相似文献   

16.
贵州省矿山废弃地研究   总被引:5,自引:0,他引:5  
赵晓鸥  周丕基 《贵州地质》2002,19(2):112-117
贵州省土地利用形势严峻,矿山弃弃地作为我省土地的一种特殊类型的资源,它的整治与重新利用已成为一条土地再利用、保护环境的有效途径。本文重点分析废弃地产生原因、特征与问题、整治利用实践,从而为废弃地的整治和可持续利用,提供科学的依据。  相似文献   

17.
In China, coal mining wastes have traditionally been dumped in cone-shaped heaps that have the potential to pollute air, soil and water environments and landscapes through dust generation, leachate production, self-ignition and as a consequence of an absence of vegetation cover. Since 1980s, the disposal technique for coal mining wastes has been changing and in many instances the wastes are now transported directly to subsided land as a fill to enable the reuse of that land. Thus, today, both coal mining waste dumps from the past and filled subsided lands are in existence. However, the comparative impacts of these different disposal techniques on the environment and farmland productivity have not been studied in detail. Using Dongtan (DT), Nantun (NT) and Xinglongzhuang (XLZ) coal mines as examples, the components of coal mining wastes and their potential pollution contribution to soil, surface water and ground water are tested in-situ. The results show that contaminants are released after self-ignition and weathering of coal mining wastes, but they are not above the allowable environmental standards. However, despite these findings, more and closer attention needs to be paid to the mobility, transportation and accumulation of these contaminants in the environment over time.  相似文献   

18.
李阳兵  罗光杰  黄娟 《中国岩溶》2017,36(4):447-453
本研究以高分辨率遥感影像和实地调查为基本数据源,运用Arcmap和Fragstats软件,研究了茂兰自然保护区弃耕撂荒地的空间分布与动态演变。结果表明:整个保护区的弃耕地主要集中在缓冲区和实验区;从2005年到2015年,弃耕地的空间分布范围明显减少,斑块面积逐渐增加;2005年和2010年,撂荒地数量与距聚落距离呈正相关,2015年,撂荒地主要分布在距聚落<200 m、600~800 m和>1 000 m的缓冲范围;弃耕地植被恢复型演替主要分布在核心区和缓冲区。研究结果为全面反映保护区的人地关系演变和生态恢复情况提供了参考。   相似文献   

19.
对鞍山市大孤山铁矿废弃地大型土壤动物的生态特征进行了调查,分析研究铁矿废弃地自然生态环境的演化和大型土壤动物群落变化的关系,在大孤山铁矿废弃地生态环境恢复与重建中大型土壤动物具有重要的指示作用。大型土壤动物种类、数量变化标志大孤山铁矿废弃地生态环境恢复与重建阶段先后;大型土壤动物群落生态结构与生物量的变化指示铁矿废弃地生态环境恢复与重建质量;蚁科与腹足纲是大孤山铁矿废弃地生态环境恢复与重建的重要指示物种。  相似文献   

20.
刘春英  吴杰  李发跃 《贵州地质》2020,37(4):439-446, 470
以硅酸钠提供硅源,铝酸钠提供铝源,通过一步水热法成功合成出具有典型立方体形状的KA分子筛。通过粉末X射线衍射仪,傅里叶变换红外光谱仪,扫描电子显微镜,透射电子显微镜,热重分析和N2吸附-脱附技术详细表征了KA分子筛。研究结果表明:KA分子筛的晶体结构属于体心立方结构,KA分子筛是多晶体;KA分子筛的硅铝物质的量比为1.0∶1;KA分子筛的BET(Brunauer-Emmett-Teller)比表面积是36.783 m2/g,微孔比表面积是24.399 m2/g,微孔体积是0.053 cm3/g。另外,通过对KA分子筛的热稳定性研究,得出2个结论:KA分子筛的相转变温度约是500 ℃,KA分子筛的总质量损失为15.1%。  相似文献   

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