Advanced Materials Research Vol. 773

Abstract: This paper sets out to explore the potential of GIS in the area of historical geography studies in particular. In essence we focus on the concept that time studies have a spatial dimension that can be highlighted by the use of GIS processes and field studies. During the later years of T'ang dynasty the most of lands between Yellow River and Yangtze River suffered a chaotic juxtaposition of separatist regimes, i.e., FanZhen. T'ang FanZhen Information System, a focused custom GIS system, has also been developed here to explore the formation and development of FanZhen. By using relevant vector data and satellite imaginary on the appropriate platform of GIS, we improved the quality and accuracy of scientific studies of FanZhen Period much more than before. GIS processes such as area, point and line representation and tracing, image/feature/script hotlinking and thematic representation are perfect to trace and display historical data across space.

Abstract: According to analyzing the status quo and tendency of energy conservation and environmental protection in construction enterprises, some measures about using resources, energy and water more efficiently are proposed to promote the green construction.

Abstract: In the region of Hubei Shuibuya hydropower station, the paper studied the variation of slope positions and years to the artificial ecological substrate on Sanyouping highway rock slope by field sampling and office processing. The indexes which were measured and analyzed in experiment mainly included unit weight, water ratio and organic matter. The results showed that the distribution of the three indexes of artificial ecological substrate on the slope were different, and lacked rules to follow. The maximum of unit weight was the middle slope, and the maximum of water ratio was the lower slope, but the organic matter of upper slope was the maximum. As the implementation of ecological restoration project went on, the unit weight of artificial ecological substrate gradually reduced, and the content of organic matter steadily rose, but the water ratio was greatly affected by seasonal rainfall and fluctuated with years. Overall speaking, three kinds of indexes on the slope with the change of years gradually tended to the natural slope. It shows that the rock slope can be restored preferably as long as the ratio of artificial substrate is properly.

Abstract: In this study, we measured the growth increments periodically for 450 progeny in a fully sib family of the annually harvesting basket willow (S. suchouensis). By testing with different non-linear models of Logistic, Gompertz and Von Bertalanffy, results showed that the indices of fitness (R²) of these three models were all up to 0.95. However, the expected values obtained with Logistic and Gompertz models diverged significantly from the observed values at the beginning growth stage. By contrast, the expected value of Von Bertalanffy model fit well with the observed value through the whole growth season, and with the highest R² of 0.994. We established the ideal statistical model that can be used to track the dynamic changes in growth rates of a basket willow pedigree. This study provided essential information for learning the dynamic expression of genes underlying the dynamic growth rates for S. suchouensis.

Abstract: River ice exists in the most countries and regions and brings much damage to the structures in the river. However, the mechanical properties of the river ice are still unclear. In the present study, over 150 specimens of river ice taken from Songhua River of China have been investigated using the MTS machine to measure the flexural strength and the effective modules at various test temperature and strain rate. The test temperature was set at three different point (-5°C,-10°C,-20°C), the strain rate was set at the range from 3.33E-5/S to 3.33E-3/S. The test results show that the flexural strength of river ice depends on the temperature and strain rate. It increases with the decreasing test temperature. The flexural strength of river ice changes at the various strain rate, however, it is non-monotonic. The variation curve looks like a inversed "W" shape. Under flexural loading condition, the effective modules of Songhua River ice is about 0.568~0.825GPa. And The modules of river ice increases with the increasing of the strain rate. The effective modules of river ice also increases with the decreasing of the test temperature slightly.

Abstract: The soil-root system formatted by plant roots and soil has a good effect in soil reinforcement and slope protection. Setaria viridis is a common species distributing in the three gorges reservoir region. In order to determine the performance of the species in soil reinforcement and slope protection and its variation characteristics on the water-level-fluctuation belt, we tested the tensile strength, anti-scouribility, anti-erodibility and shear resistance of the community soil-root systems. The results showed that the root system of S. viridis community grew better with the increase of altitude under the influence of water level fluctuation. The soil - root system of S. viridis community has an effect on soil reinforcement and slope protection. Its tensile strength of roots ranged from 60 to 90 Kpa/mm2,and its anti-scouribility enhancement coefficient, soil anti-erodibility enhancement coefficient and shear strength of soil-root system reached 0.15 to 0.90, 0.30 to 0.73, and 9 to 24 Kpa respectively. Its effects in soil reinforcement increased with the altitude increases. The correlation analysis indicated that the effects related significantly with root biomass. It is concluded that spatial changes of effects of soil-root systems in its soil reinforcement and slope protection might result from difference of root growth caused by water level fluctuation.

Abstract: This article is intended to identify interface symbols of sand groups by combining logging data with seismic data, and set correlation symbols of 8 sand groups in strata Nen 3 (H1) and Nen 4 (H2) of Nenjiang group. Characteristics of interior gyrations of those sand groups are analyzed according to core and logging data. Besides, sand group features of a single well are expected to be studied in this article. Upon the data and analysis, foundation information is provided for the research on sand distribution characteristics of Heidimiao oil layer and controlling factors of oil and water distribution.

Abstract: The government of Shaoxing in response to the call of country, implemented sustainable development policy, promulgating green ecological water saving construction. Shaoxing ecological building water-saving technology was mainly divided into four parts, including the use of local advantages to collect rain water for reuse, using new water-saving equipment and water-saving water apparatus, making full use of solar energy and municipal pipe pressure, city water reuse and so on several aspects. The technology has been obtained the practical application, the water supply and drainage system efficiently, thereby reducing water consumption, good energy saving and water saving benefit.

Abstract: River conjunction region is a common occurrence in plain river network areas. Flow structures in the + type conjunction region are very complex, which affected by the conjunction rivers. In the present paper, the flow pattern in the + type conjunction area of the Grand Canal and the Xingou River was simulated by a 2-D numerical model. The simulated results demonstrated that a transversal velocity region was occurred in the left part of conjunction region due to the inflow influences of north Xingou River. Additionally, a circulation zone was observed in the right part of upstream Grand Canal due to the outflow effects of south Xingou River.

Abstract: The rural drinking water safety is an important issue for people's livelihood. For Luquan city, of Hebei province in China, drinking water was sampled through site investigation, and the water quality was analyzed used comprehensive index method. The results show that: the water type is IV in the investigation area, which is not suitable for drinking in a long time. The corresponding measures were proposed combined with the real conditions, which could provide theoretical guidance and policy reference for improvement of rural drinking water management mechanism.