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The Chinese government is planning to transform remote, largely peasant-populated, mountain regions into an industrial hub housing half a million citizens. Come 2020, Lanzhou Xinqu, or Lanzhou New Area, is expected to generate some 100 billion Yuan - €12bn - in GDP. And this is just one - albeit the biggest - of five development projects to haul backward, rural hinterlands into an urban 21st century...
With the rapid development of expressway construction, environmental effects have also increased protrudes out from eco-environment, land utilization, hydrogeology and sound environment. Based on ecological footprint model, this paper analyses and compares the change of the per capita ecological footprint and biological capacity before and after constructing Yongdeng-Gulang (here-in-after, Y-G) expressway...
According to climate, vegetation, geomorphology, the degree of the Kaschin-Beck disease and geology, hydrogeology, soil, the degree of original environmental transform as well as the difference of the disease, etc., the authors divided the east of Jilin province into three ecological environmental zones (A,B,C), compares the situation among three zones, then draws conclusions as follows: Kaschin-Beck...
This study aims to assess the groundwater pollution potential by Beheshte Zahra Cemetery, Tehran, Iran. Surly there is the penetration of decomposition products into seepage, during the fate of human corpses. This seepage contains bacteria, viruses and organic and inorganic chemical decomposition products. In this investigation, analyzing the data gathered about Beheshte Zahraha has been done; the...
Owing to those unfavorable factors such as poor natural conditions, high altitude and vast territorial spread in Tibet, it is hard to locate water-rich areas accurately just with traditional hydrogeological survey methods, but remote sensing can do it. Using processed remote sensing Landsat TM/ETM imagery, this paper extracts geomorphology and geology information related to hydrogeology, discusses...
Based on the introduction of hydrogeology situation and the natural environment in Changbai Mountain area and mineral contents of 8 spring waters, the water abundance, the water quality, the healthy effect on human body, mineral type and characteristics of these spring waters were evaluated. Furthermore, the taste indices of these spring waters are superior. As compared with the well-known European...
This paper goes up each node representative sample using PHREEQC software , on the flow line, to carry out the calculation of degree of saturation and the inverse hydrochemical simulation , the chemical type whose result shows of the study district underground water belongs to typical dissolve water. In the entire runoff process, dolomite, gypsum and halite are in not saturation state, calcite is...
Based on semi-analytical method, this paper studyies the supercritical CO2 flowing in aquifer in term of the multi-component and multi-phase property. This paper also analyzes the fluid property, Darcy's law, the mass conservation and the ideal fluids and the elastic materials hypothesis, adjusts multi-phase fluid model mechanism and derived the petrophysical state equation. The result provides a...
Focusing on BPNN model application and GIS spatial analysis, Hangzhou construction land geology environment suitability evaluation is studied in this article. BPNN model set up, evaluation indices system set up, samples selection, data process, etc., are studied deeply based on BPNN and GIS based quantitative and spatial analysis. For Hangzhou case, factors including topography features, engineering...
In recent years, the effect of pavement surface runoff on roadside water resources has aroused widespread attention. According to the research project of "Study on the key drainage technology of down-traversing crossroad in North China Plain area", the paper investigates the climate, geology, and hydro-geology of the plain areas of north China, analyses their characteristic as low water...
Water environment problems received extensive attention in recent years, take Jinan karst spring region for example, groundwater evolution characteristics were analyzed by observing changes of spring level, spring runoff, water quality and safety yield, authors thought the main reason of drying-up was inadequate understanding of the safety yield index. According to the characteristics of Jinan spring...
A neural network classifier is sought. Classical neural network neurons are aggregations of a weight multiplied by an input value and then controlled via an activation function. This paper learns everything within the neuron using a variant of genetic programming called gene expression programming. That is, this paper does not explicitly use weights or activation functions within a neuron, nor bias...
Miyun-Huairou-Shunyi area, located on the upper-middle alluvial fan of Chaobai River, is the largest groundwater source region of Beijing, China. The study area is approximately equal to 479 km2 and covers three counties. The area includes one ground-water sub-basin, named Chaobai River, which is filled with unconsolidated alluvial deposits that comprise the aquifer system. Groundwater constituted...
Eco-water (layer) refers to the water body closely related to the ground vegetation layer. It is conserved in leaves, roots, vegetation humus layers and root soil layers, which is capable of precipitation interception and rivers and/or groundwater supplementation. As a challenging issue in the hydrological cycle field, the eco-water and its resource quantity are difficult to be quantified by ordinary...
Based on the geology and hydrogeology, the chemical characteristics of phreatic water in Yinchuan plain are analyzed according to the analysis results of 272 water samples collected in 2003. The factors controlling the composition of phreatic water are investigated. Results show the TDS, concentrations of Na+, Cl- of phreatic water generally increase along the direction from SW to NE, the chemical...
Aimed at the increasing severe domestic wastes pollution, evaluation model of groundwater vulnerability to pollution from informal landfills in regional scale has been proposed. It is based on the DRASTIC model and LeGrand model, considering the characteristics of regional geology and hydrogeology, as well as pollution that landfills do to groundwater. Then the actual and potential risks in groundwater...
In recent years, land development activities in rural parts of Albemarle County, Virginia have increased steadily. These activities have resulted in increased public concern for the condition of local groundwater resources. However, there is currently no representative monitoring system in place to track the availability of the countypsilas groundwater. Albemarle has a unique hydrogeology, characterized...
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