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开发建设项目施工期水土流失预测方法研究 总被引:1,自引:0,他引:1
采用实测系数法,推算出开发建设项目施工期各类再塑地貌产生的水土流失量,大大提高了该阶段水土流失预测的准确性,为开发建设项目水土保持方案防治措施的制订,提供了可靠的理论依据.该方法可操作性强,与实际结合密切,快速、精确度高,适用于各类开发建设项目施工阶段水土流失量的预测. 相似文献
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刘志刚 《山西水土保持科技》2008,(4)
结合编制水土保持生态建设可行性研究报告、初步设计和开发建设项目水土保持方案工程造价的实际,分别就人工工资、基础费率、独立费用、预备费、部分定额等几个典型问题进行了探讨。 相似文献
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开发建设项目水土保持投资概 (估 )算编制既要体现水土保持工程特点 ,又要与主体工程造价编制相结合。对在各行业工程造价编制规定及定额体系多样、标准不一的情况下 ,水土保持工程投资概 (估 )算编制中的有关问题进行了分析 ,并提出了建议 相似文献
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水土保持方案编制技术探讨 总被引:2,自引:2,他引:0
水土保持方案是开发建设项目立项的必备文件,如何编撰好可研阶段的水土保持方案是各设计单位与相关人员关心的事情。《开发建设项目水土保持技术规范》是指导方案编撰的标准,依据该标准对可研阶段水土保持方案的深度和广度、方案需要解决的问题、如何达到方案审查要求等进行了探讨。 相似文献
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开发建设项目水土保持投资概(估)算鳊制既要体现水土保持工程特点,又要与主体工程造价编制相结合。对在各行业工程造价编制规定及定额体系多样、标准不一的情况下,水土保持工程投资概(估)算编制中的有关问题进行了分析,并提出了建议。 相似文献
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随着水土保持相关法律法规的逐步完善,水土保持方案编制工作越来越系统、规范,大部分开发建设项目在立项阶段开展了水土保持方案编制工作,但也有一部分开发建设项目动工后才开展水土保持方案编制工作。从设计深度、论述的侧重点阐述编制已经开工开发建设项目与未开工开发建设项目水土保持方案的主要区别,同时从项目概况、主体工程水土保持论述、水土流失防治责任范围、水土保持分区、水土保持措施总体布局、水土保持投资等方面总结了补报水土保持方案时应注意的问题。 相似文献
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古县属太岳革命老区、省定贫困县,近年来,大力实施农村饮水安全提升工程,全县已建成运行饮水安全工程194处,受益人口73 553人,占到农村人口99.4%,自来水普及率达到98%,有力助推了扶贫攻坚。介绍了农村饮水安全提升工程建设成效、主要经验,针对目前存在的问题,提出积极应对措施。 相似文献
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丁玉 《山西水土保持科技》2011,(1):26-28
以北京市的实际案例,对开发建设项目水土保持工程投资编制中存在的主体工程单价与水土保持工程单价水平不一致、工程措施中项目设置和主体工程项目设计脱钩、施工临时工程费用和主体工程费用重复、独立费用编制依据不足、招标阶段水土保持工程量清单编制及投资等问题进行了分析探讨. 相似文献
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中国-加拿大水保生态科技合作项目临泽示范区的成效与特点 总被引:1,自引:0,他引:1
中国-加拿大水土保持生态建设科技合作示范项目临泽项目区风沙危害严重、水土资源利用不合理、防护体系稳定性差,直接威胁着绿洲的持续发展,项目区的经济特点和所存在的环境问题对绿洲而言均具有代表性。通过3年综合治理,建成了以绿洲为中心,自边缘到外围的“扩、阻、固、封”相结合的防风固沙防护体系,初步形成了功能完善、结构合理的农田防护体系和水土资源利用格局。项目建设的主要特点是组织措施得力、前期工作规范、注重科技支撑等。 相似文献
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论茶园灌溉工程和灌溉效益 总被引:1,自引:0,他引:1
从湖南情况出发,论述了在干旱明显的地区、在基础较好的茶园里建立灌溉工程的必要性。鉴于茶园大多居于山区丘陵地段,指出了固定式喷灌系统更能适应于茶叶大田生产。文中应用有关科研成果和大生产的经验提出了科学用水的理论依据,节能灌溉的指标,以及能适应大生产应用的技术参数。最后系统地阐述了由于灌溉改善了荼园的生态环境,从而提高了茶叶的产量和鲜叶的自然品质,它能获得良好的经济效益。结论是:兴建灌溉工程,作为一项新的工程技术和生物技术相结合的农艺措施,对发展茶叶生产具有一定的意义。 相似文献
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集雨造林工程应用效果研究 总被引:1,自引:0,他引:1
通过对定西县集雨型漏斗式集流坑、燕尾式集流坑、膜侧集流沟 3种集雨造林工程设施的试验研究和实地调查指出 ,定西陇中黄土高原丘陵沟壑区退耕造林必须以保水为基础 ,以立地条件为前提 ,构造适宜的工程措施 ,配套经济效益高的树种 ,才是改善生态环境 ,增强农村经济增长后劲 ,进行西部大开发的有力措施 相似文献
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Rose N.L. Alliksaar T. Bowman J.J. Boyle J. Coles B. Fott J. Harlock S. Juggins S. Punning J-M. St. Clair-Gribble K. Vukic J. Watt J. 《Water, air, and soil pollution》1998,106(3-4):205-218
The FLAME (FLy-Ash and Metals in Europe: Implications for human and environmental health) research project funded by the EU COPERNICUS programme ran from 1994 to 1996. The main aims of the programme were to further develop an automated chemical characterisation to discriminate between fly-ash particles from the major fossil-fuels used throughout Europe (coal, oil, peat, brown coal and oil shale) and apply this to particles extracted from lake sediments taken from the four participating countries (Estonia, Czech Republic, Ireland and U.K.) in order to determine spatial distributions of deposited particulates from large combustion sources. In combination with trace metal analyses from lake surface sediments and catchment mosses, the fly-ash particle data were able to identify areas of elevated pollutant deposition and suggest potential sources for them. Given the transboundary nature of the pollutants, the techniques and results of FLAME are of relevance throughout Europe. Other papers in this volume describe results and interpretation. This paper describes the background and aims of the FLAME project, outlines the methods employed for sampling sediments and mosses and the analytical techniques for particle enumeration and trace metal analysis for sediments and mosses. Finally brief details of the particle characterisation are given showing how a hierarchical discriminant function was developed, based on energy dispersive spectroscopy (EDS) derived particle chemistry which correctly allocated particles from the five fuel-types with 80% accuracy. 相似文献
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Rose N.L. Alliksaar T. Bowman J.J. Fott J. Harlock S. Punning J-M. St. Clair-Gribble K. Vukic J. Watt J. 《Water, air, and soil pollution》1998,106(3-4):329-351
Detailed discussion of the FLAME data at individual country level is included in other papers in this volume but some aspects of the analyses and data interpretation are best discussed on a broader level and that is the aim of this paper. The spatial distribution of fly-ash particles in the participating countries shows good agreement with expected sources and this implies that the majority of particulates travel less than 100 km from their source although lower concentrations of particles were detected at all sample sites. Areas of elevated concentration mostly coincide with population centres and imply possible impacts on human health by fine particulates (e.g. PM10) from fossil-fuel sources in these areas. Problems with the particle characterisation, developed within the FLAME project, include difficulties in allocation due to the overlap between coal-series fuels and the presence of a 'mineral coal' background at lake sites thought to be due to persistent sediment minerals surviving the chemical pre-treatment and becoming allocated to coal. This leads to implications for the inclusion of further fuels into the classification and the application of the technique to the same fuels beyond Europe. The combination of lake sediment SCP data and sediment and moss metals data can also provide an indication of the impact from anthropogenic contamination at a site and probable source types. Comparison with previous moss analyses from 1990 show that metal concentrations in central Europe may have decreased but levels in the UK have shown little change. Finally, comparisons of FLAME data with the EMEP model for pollutant budgets across Europe generally show good agreement for pathways, although further work is needed in receptor countries for additional confirmation. 相似文献
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