长治水泥厂区域地震地质环境评价

长治水泥厂位于山西隆起区南部长治盆地, 长治盆地属中强潜在震原区。场地附近晋获断裂现代活动相对较弱, 晚更新后断裂基本停止活动, 对水泥厂场地无直接影响。     

计算机技术与地矿工作信息化

地矿工作信息化已经成为时代的潮流。地矿工作信息化水平,也已经成为衡量地矿工作现代化程度的主要标志。地矿工作信息化工程的核心,是地质矿产信息系统建设,而主要技术手段是计算机应用。当前,计算机应用已经渗透到地质工作的全过程,成为地质工作新技术、新方法应用的主流,极大地推动了地矿工作的前进。地矿工作信息化领域的计算机应用涉及计算机技术领域的多个分支前缘。本文根据所掌握的几个主要方面的资料,评介了国内外计算机技术在地矿工作信息化领域的应用现状与发展趋势。     

中国出境旅游市场现状与发展对策分析

采用市场学中的消费者行为理论对中国出境旅游市场现状的分析、揭示出境旅游者在目的地选择，旅游形式，购买渠道，交通方式，住宿购物的消费决策和来自不同客源市场，经济收入、社会阶层、文化层次、年龄性别旅游者消费行为的规律；对出境旅游市场目前存在的问题进行研究分析，提出今后出境旅游市场治理的对策及展望中国出境旅游市场的发展前景。     

Low enthalpy geothermal energy resources in Denmark

The deep oil exploration drillings in Denmark have shown that especially the Danish Embayment contains low enthalpy geothermal resources associated with warm aquifers. The most promising reservoirs have been found in highly permeable Upper Triassic sand and sandstone beds, which cover at least 5000 km² at depths of 2000–3000 m and at temperatures of 60–100°C. The porosity of the main reservoir is of 15–25%, and the permeability is presumed to be approximately 1 darcy (10^–12 m²) or higher. A layer thickness of 30–60 m has been observed on a number of localities. Also the Middle Jurassic and the Lower Triassic contain reservoirs of interest. A major geothermal exploration work is planned with seismic investigations, drillings to depths of 2000–4000 m and probably establishment of pilot district heating plants.     

山东水资源分析及趋势预测

通过分析近３９年山东省水资源的历史倾向性、阶段性、周期性,研究了水资源总量及径流量和地下水位的变化特征。结果表明,山东水资源量的年际变化大且呈快速下降态势,其中,地表径流量的下降尤为明显;水资源的变化存在一定的阶段性和周期性。通过分析降水与水资源的关系,发现两者的变化规律一致,但降水对水资源,特别是对地下水分量的影响有一定的持续性。建立均生函数预测模型,对未来水资源总量进行预测显示,１９９８￣２０     

Flow–duration curve integration into digital filtering algorithms for simulating climate variability based on river baseflow

ABSTRACT

A baseflow separation methodology combining the outcomes of the flow–duration curve and the digital filtering algorithms to cope with the restrictions of traditional procedures has been assessed. Using this methodology as well as the monitored and simulated hydro-climatological data, the baseflow annual variations due to climate change and human-induced activities were determined. The outcomes show that the long-term baseflow index at the upstream sub-basin is nearly half of that at the downstream from October to April, whereas they are close to each other for the remaining months. Some of the groundwater reacts to precipitation and an evident rise in the groundwater contribution was detected for the hydrological years 1998–2001 and 2006–2008. The contrary was recorded for1987. The water released from the reservoir in the dry periods led to distinctions in the detected baseflow index between the pre-damming and post-damming periods of the river.     

高密度电法在老山隧道勘察中的应用

应用高密度电阻率法勘察宁淮高速公路南京老山隧道工程,查明了隧道YK5 280~ZK5 540段的地层分布和构造特征,并推断出鹰嘴山断层的位置和产状,结合勘察资料证明该断层为高角度逆断层。预测出隧道和断层破碎带相交处为浅部裂隙岩溶含水带中的优良导水带,该处涌水的可能性很大,其推断结果在施工中得到证实。说明高密度电法是进行隧道勘察和构造裂隙岩溶富水带探测的一种可靠手段。     

Wetlands with controlled drainage and sub‐irrigation systems—modelling of the water balance

Over the past centuries, the agricultural use of wetlands in Central Europe has required interference with the natural wetland water balance. Often this has consisted of drainage measures alone. In low‐precipitation areas, it has also involved the operation of combined drainage and sub‐irrigation systems. Model studies conducted as part of planning processes, or with a view to finding out the impact of changing climate conditions on the water balance of wetlands, must take these facts into account. For this reason, a water balance model has been devised for wetlands whose water balance is governed by water resources management systems. It is based on the WBalMo model system. Special modules were integrated into WBalMo to calculate the water balance of wetland areas (WABI module) and to regulate inflow partitioning within the wetland (REGINF module). When calculating the water balance, the WABI module takes into account precipitation and potential evapotranspiration, groundwater levels below surface, soil types, land‐use classes, inflows via the running water system, and data for target water levels. It provides actual evapotranspiration, discharge into the running water system, and groundwater levels in the area. The example of the Spreewald, a major wetland area in north‐eastern Germany, was used to design and test the WBalMo Spreewald model. The comparison of measured and calculated water balance parameters of the wetland area confirms the suitability of the model for water balance studies in wetlands with complex water resources management systems. The results reveal the strong influence of water management on the water balance of such areas. The model system has proved to be excellently suited for planning and carrying out water management measures aimed at the sustainable development of wetlands. Furthermore, scenario analyses can be used to assess the impact of global change on the water balance of wetlands. Copyright © 2006 John Wiley & Sons, Ltd.     

Coupled surface water–groundwater model and its application in the arid Shiyang River basin,China

The planning and management of water resources in the Shiyang River basin, China require a tool for assessing the impact of groundwater and stream use on water supply reliabilities and improving many environment‐related problems such as soil desertification induced by recent water‐related human activities. A coupled model, integrating rule‐based lumped surface water model and distributed three‐dimensional groundwater flow model, has been established to investigate surface water and groundwater management scenarios that may be designed to restore the deteriorated ecological environment of the downstream portion of the Shiyang River basin. More than 66% of the water level among 24 observation wells have simulation error less than 1·0 m. The overall trend of the temporal changes of simulated and observed surface runoff at the Caiqi gauging station remains almost the same. The calibration was considered satisfactory. Initial frameworks for water allocation, including agricultural water‐saving projects, water diversion within the basin and inter‐basin water transfer, reducing agricultural irrigation area and surface water use instead of groundwater exploitation at the downstream were figured out that would provide a rational use of water resources throughout the whole basin. Sixteen scenarios were modelled to find out the most appropriate management strategies. The results showed that in the two selected management options, the groundwater budget at the Minqin basin was about 1·4 × 10⁸ m³/a and the ecological environment would be improved significantly, but the deficit existed at the Wuwei basin and the number was about 0·8 × 10⁸ m³/a. Water demand for domestic, industry and urban green area would be met in the next 30 years, but the water shortage for meeting the demand of agricultural water use in the Shiyang River basin was about 2·2 × 10⁸ m³/a. It is suggested that more inter‐basin water transfer should be required to obtain sustainable water resource use in the Shiyang River basin. Copyright © 2009 John Wiley & Sons, Ltd.     

湛江市古树名木资源调查与分析

调查了湛江城市建成区及城乡结合带的古树名木299株,其中古树292株,名木7株,分属 16科20属24种。树木种类以榕属(Ficus)植物最为显著,占总资源的77.9%;箭毒木(Antiaris toxicaria)、鹊肾树(Streblusasper)秋茄树(Kandeliacandel)、竹节树(Caralliabrachiata)、叉叶木 (Crescentiaalata)和牛蹄豆(Pithecellobiumdulce)等,为湛江特有的古树名木资源。分析了古树名 木资源的分布与湛江城市建设的关系,讨论了古树名木的生长状况,并提出保护建议。