Advanced Materials Research Vol. 773

Abstract: With fast developing of economy and increasing shortage of resources, building conservation-type of societies and developing sustainable buildings become more and more necessary. With this background in mind, this paper investigates and discusses the ecological design of residence in the traditional offshore fishing villages in the coastal areas of southeast China. Taking Xiapu region in Fujian province as a case for the study, this paper first introduces the background of traditional fishing villages and fishermans floating houses at the region. Then, it discusses the advantages and disadvantages of such houses from design and utilization aspects. Finally, it explores and develops some specific strategies and technologies for the ecological design of new floating residence in the researched region, which can better accommodate local fishermens new needs of living, fish farming and leisure activities.

Abstract: The safety of the water source area is the premise of urban safety and the basis for the sustainable urban development and urban-rural coordinated development. The contradiction between water source area protection and the development of towns in the water source area is increasingly prominent, and the restrictions of water source area protection on the towns in the water source area have seriously restricted the development of towns in water source area. Based on deep analysis of the principal contradictions and problems between urban water source area protection and the development of the towns in water source area, the paper has proposed the spatial planning pathways and the relevant public policy suggestions for the coordinated development of urban water source protection and the towns in water source area.

Abstract: The text is to establish a combined forecasting model based on the Rough Set (RSCM) ,on the basis of BP Neural Network Model and Support Vector Machine ,in consideration of the Chinese CO2 emission :uncertainty ,imperfection and small sample properties. We predict Chinese CO2 emissions for the same period to verify the effectiveness of combination forecasting model based on rough set, based on the data of the Chinese CO2 emissions from 1990 to 2011. and use this model to predict future Chinese CO2 emissions.

Abstract: A field experiment was carried out in 2007 and 2008 growing seasons to explore the comprehensive evaluation of soil nutrients in spring wheat field under regulated deficit irrigation (RDI) in an arid environment. The soil organic matter, soil total and available nitrogen, phosphorus, and potassium in 0~40 cm layer after two years of RDI management were selected as the evaluating factors to determine both the weighing coefficient of each soil nutrient component and the comprehensive evaluation index for soil nutrients (CEISN) using the membership function in fuzzy mathematics. The results showed that the CEISN was higher in all the RDI management than that in the no water deficit control except 3.5% lower in RDI2 over CK. The CEISN improvement was respectively 6.3%, 6.1%, 6.1%, 5.3%, 4.9%, and 3.8% higher in RDI7, RDI4, RDI5, RDI1, RDI3, RDI6 than in CK sequentially. Consequently, after two years of experiment, the optimal water management and sustainable soil nutrient use pattern was maintained in RDI7 due to its maximum CEISN in all the water deficit regulation regimes.

Abstract: A field trial was conducted in 2007 and 2008 to investigate the difference in soil nutrients and grain yield of spring wheat (Triticum aestivum) as influenced by regulated deficit irrigation (RDI) in an arid area. Three RDI treatments and a no-water-deficit control (CK) were designed to subject wheat to various degrees of soil water deficit at different crop developmental stages. Significant differences (p<0.05) occurred in soil organic matter (SOM) and soil available potassium (SAK) contents in both growing seasons, but no difference (p>0.05) occurred among the RDI treatments. Meanwhile, no differences were found in soil total nitrogen (STN) and soil total phosphorus (STP) contents among the treatments and CK. SOM content was improved by 6.2% to 7.2% in RDI treatments than in the CK over the two growing seasons, while the STN, STP, and SAK contents were increased by 1.2% to 2.5%, 1.4% to 5.6%, and 9.0% to 11.2%, respectiely. The STP (t=10.900, p<0.001), soil available phosphorus (SAP, t=8.894, p<0.001), and SAK (t=11.706, p<0.001) contents in 0~40 cm soil layer at wheat harvest were significantly lower in 2008 than in 2007, while the SOM (t=-2.513, p<0.05) and STN (t=-9.950, p<0.001) contents were significantly higher in 2008. Soil organic C, STN, and SAP balance was greatly influenced by RDI in two growing seasons. Compared to the no-water-deficit control, grain yields over the two years were respectively improved by 16.5% to 24.9% in RDI plots.The relationship between grain yield and the soil nutrients was described as y=15843.4 +713.3SOM-20989.1STN+38.7SAN-15.0SAP-39.7SAK (R²=1, p<0.001).

Abstract: The Luyang Lake, a declined ancient lake, is located in Lubotan area in northeast of Shaanxi Guanzhong Plain. As one of the relict lakes of Sanmen Lake in early Pleistocene, Luyang Lake formed in the Pleistocene of Quaternary period dating back to about 3 million years ago, and later gradually retreat into a beach in the late Ming dynasty due to crustal tectonics and global climate change. Water area of the lakes becomes larger due to development of irrigation systems and artificial water source in the past 30 years. And now, the groundwater level is rising and Wetland trend intensifying.

Abstract: On the basis of investigation and survey on Chinese enterprises manufacturing asbestos friction material, it is concluded through analysis that key operation posts and pollution features of dust hazard during the process of manufacturing asbestos friction material in the way of the application of process management and hazard identification. Transport and feeding of asbestos and packing etc, hot briquetting, polishing and stamping punch are important operation posts of asbestos dust dispersing, characterized by wide distribution of dust producing places, difficulty in the implementation of closeness and ventilating measures, and extensive dispersing of asbestos dust following air and stream of people. According to three-E principle of risk management theory and safety production accident prevention, controlling asbestos dust should, based on the improvement of technology and abandonment of the use of older production equipment, comprehensively adopt engineering technology, individual protection and legal measures to prevent and reduce asbestos dust pollution and occupational hazard of enterprises manufacturing asbestos friction material.

Abstract: Heavy metals accumulation in river sediments can reflect the environmental quality of river waters. Its of practical significance to study the accumulation level of heavy metals in river sediments and its environmental risk. this thesis study on the heavy metals accumulation in river sediments of three typical river of Xiao qinling gold mine area, and the results showed that the mercury, lead , zine, cadmium and copper elements are characteristic contaminations, respectively. In Shuangqiao river, the average values of mercury, lead , copper and zine were 94·72, 25.34, 3388.67, 376.77 and 675.90 mg·kg-1, the five elements show the larger variety in tong river and Shuangqiao river than the oher five rivers. respectively. The environmental risk assessment by using geoaccumulation index (Igeo) indicated that these seven rivers a high-very high rank environmental risk of heavy metals accumulation in river sediments, the environmental risk probability orders of seven river sediments is Tong river > Shuangqiao river> Xijian river > Yiluo river> Sha river > Zaoxiang river> Yangping river . and there was highest environmental risk in Eolian loess area. So There are the probability of achieving higher risk than now if local government wouldnt Adopt effectively manage measure river to rivers.

Abstract: Accurate prediction of future water distribution using available assessment data is crucial for every country to construct water conveyance projects and formulate strategies to redistribute national water resources .This paper proposes how to use Markov model to test whether the inter-regions which are short of water resource compared to their needs of water resource .The water resource is transited from water-rich areas to water-deficient areas to solve this problem .We hope the water resource in each region reaches a stable level when the water redistribution process and the transition matrix is used to test the stability .We consider the transition process as a Markov process, to analysis and calculate the limiting water production distribution .Also ,This paper propose a condition when stable limiting water distribution exists.

Abstract: Based on the groundwater exploration project in serious water shortage region (Jiaozuo, Henan) of Huaihe valley, the paper explores a comprehensive borehole location method from water detection experience in northern carbonate rock hilly area of Boai county, Henan. The results show that in the deep buried area of Karst aquifer, the combination of hydrogeologic survey-structural controlled water theory, high density electrical method and V8-controlled source audio magnetotelluric is effectively in borehole location ,which can greatly reduce the rate of "dry well" and improve the proportion of completion.